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bun.sh/src/bun.js/node/node_fs.zig
Jarred Sumner 3a6b9928f3 experiment: use libpas
2024-12-24 04:19:38 -08:00

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// This file contains the underlying implementation for sync & async functions
// for interacting with the filesystem from JavaScript.
// The top-level functions assume the arguments are already validated
const std = @import("std");
const bun = @import("root").bun;
const strings = bun.strings;
const windows = bun.windows;
const string = bun.string;
const JSC = bun.JSC;
const PathString = JSC.PathString;
const Environment = bun.Environment;
const C = bun.C;
const Flavor = JSC.Node.Flavor;
const system = std.posix.system;
const Maybe = JSC.Maybe;
const Encoding = JSC.Node.Encoding;
const PosixToWinNormalizer = bun.path.PosixToWinNormalizer;
const FileDescriptor = bun.FileDescriptor;
const FDImpl = bun.FDImpl;
const Syscall = if (Environment.isWindows) bun.sys.sys_uv else bun.sys;
const Constants = @import("./node_fs_constant.zig").Constants;
const builtin = @import("builtin");
const posix = std.posix;
const darwin = std.os.darwin;
const linux = std.os.linux;
const PathLike = JSC.Node.PathLike;
const PathOrFileDescriptor = JSC.Node.PathOrFileDescriptor;
const DirIterator = @import("./dir_iterator.zig");
const Path = @import("../../resolver/resolve_path.zig");
const FileSystem = @import("../../fs.zig").FileSystem;
const ArgumentsSlice = JSC.Node.ArgumentsSlice;
const TimeLike = JSC.Node.TimeLike;
const Mode = bun.Mode;
const uv = bun.windows.libuv;
const E = C.E;
const uid_t = if (Environment.isPosix) std.posix.uid_t else bun.windows.libuv.uv_uid_t;
const gid_t = if (Environment.isPosix) std.posix.gid_t else bun.windows.libuv.uv_gid_t;
const ReadPosition = i64;
const StringOrBuffer = JSC.Node.StringOrBuffer;
const NodeFSFunctionEnum = std.meta.DeclEnum(JSC.Node.NodeFS);
const UvFsCallback = fn (*uv.fs_t) callconv(.C) void;
const Stats = JSC.Node.Stats;
const Dirent = JSC.Node.Dirent;
pub const default_permission = if (Environment.isPosix)
Syscall.S.IRUSR |
Syscall.S.IWUSR |
Syscall.S.IRGRP |
Syscall.S.IWGRP |
Syscall.S.IROTH |
Syscall.S.IWOTH
else
// Windows does not have permissions
0;
const ArrayBuffer = JSC.MarkedArrayBuffer;
const Buffer = JSC.Buffer;
const FileSystemFlags = JSC.Node.FileSystemFlags;
pub const Async = struct {
pub const access = NewAsyncFSTask(Return.Access, Arguments.Access, NodeFS.access);
pub const appendFile = NewAsyncFSTask(Return.AppendFile, Arguments.AppendFile, NodeFS.appendFile);
pub const chmod = NewAsyncFSTask(Return.Chmod, Arguments.Chmod, NodeFS.chmod);
pub const chown = NewAsyncFSTask(Return.Chown, Arguments.Chown, NodeFS.chown);
pub const close = NewUVFSRequest(Return.Close, Arguments.Close, .close);
pub const copyFile = NewAsyncFSTask(Return.CopyFile, Arguments.CopyFile, NodeFS.copyFile);
pub const exists = NewAsyncFSTask(Return.Exists, Arguments.Exists, NodeFS.exists);
pub const fchmod = NewAsyncFSTask(Return.Fchmod, Arguments.FChmod, NodeFS.fchmod);
pub const fchown = NewAsyncFSTask(Return.Fchown, Arguments.Fchown, NodeFS.fchown);
pub const fdatasync = NewAsyncFSTask(Return.Fdatasync, Arguments.FdataSync, NodeFS.fdatasync);
pub const fstat = NewAsyncFSTask(Return.Fstat, Arguments.Fstat, NodeFS.fstat);
pub const fsync = NewAsyncFSTask(Return.Fsync, Arguments.Fsync, NodeFS.fsync);
pub const ftruncate = NewAsyncFSTask(Return.Ftruncate, Arguments.FTruncate, NodeFS.ftruncate);
pub const futimes = NewAsyncFSTask(Return.Futimes, Arguments.Futimes, NodeFS.futimes);
pub const lchmod = NewAsyncFSTask(Return.Lchmod, Arguments.LCHmod, NodeFS.lchmod);
pub const lchown = NewAsyncFSTask(Return.Lchown, Arguments.LChown, NodeFS.lchown);
pub const link = NewAsyncFSTask(Return.Link, Arguments.Link, NodeFS.link);
pub const lstat = NewAsyncFSTask(Return.Stat, Arguments.Stat, NodeFS.lstat);
pub const lutimes = NewAsyncFSTask(Return.Lutimes, Arguments.Lutimes, NodeFS.lutimes);
pub const mkdir = NewAsyncFSTask(Return.Mkdir, Arguments.Mkdir, NodeFS.mkdir);
pub const mkdtemp = NewAsyncFSTask(Return.Mkdtemp, Arguments.MkdirTemp, NodeFS.mkdtemp);
pub const open = NewUVFSRequest(Return.Open, Arguments.Open, .open);
pub const read = NewUVFSRequest(Return.Read, Arguments.Read, .read);
pub const readdir = NewAsyncFSTask(Return.Readdir, Arguments.Readdir, NodeFS.readdir);
pub const readFile = NewAsyncFSTask(Return.ReadFile, Arguments.ReadFile, NodeFS.readFile);
pub const readlink = NewAsyncFSTask(Return.Readlink, Arguments.Readlink, NodeFS.readlink);
pub const readv = NewUVFSRequest(Return.Readv, Arguments.Readv, .readv);
pub const realpath = NewAsyncFSTask(Return.Realpath, Arguments.Realpath, NodeFS.realpath);
pub const rename = NewAsyncFSTask(Return.Rename, Arguments.Rename, NodeFS.rename);
pub const rm = NewAsyncFSTask(Return.Rm, Arguments.Rm, NodeFS.rm);
pub const rmdir = NewAsyncFSTask(Return.Rmdir, Arguments.RmDir, NodeFS.rmdir);
pub const stat = NewAsyncFSTask(Return.Stat, Arguments.Stat, NodeFS.stat);
pub const symlink = NewAsyncFSTask(Return.Symlink, Arguments.Symlink, NodeFS.symlink);
pub const truncate = NewAsyncFSTask(Return.Truncate, Arguments.Truncate, NodeFS.truncate);
pub const unlink = NewAsyncFSTask(Return.Unlink, Arguments.Unlink, NodeFS.unlink);
pub const utimes = NewAsyncFSTask(Return.Utimes, Arguments.Utimes, NodeFS.utimes);
pub const write = NewUVFSRequest(Return.Write, Arguments.Write, .write);
pub const writeFile = NewAsyncFSTask(Return.WriteFile, Arguments.WriteFile, NodeFS.writeFile);
pub const writev = NewUVFSRequest(Return.Writev, Arguments.Writev, .writev);
pub const cp = AsyncCpTask;
pub const readdir_recursive = AsyncReaddirRecursiveTask;
/// Used internally. Not from JavaScript.
pub const AsyncMkdirp = struct {
completion_ctx: *anyopaque,
completion: *const fn (*anyopaque, JSC.Maybe(void)) void,
/// Memory is not owned by this struct
path: []const u8,
task: JSC.WorkPoolTask = .{ .callback = &workPoolCallback },
pub usingnamespace bun.New(@This());
pub fn workPoolCallback(task: *JSC.WorkPoolTask) void {
var this: *AsyncMkdirp = @fieldParentPtr("task", task);
var node_fs = NodeFS{};
const result = node_fs.mkdirRecursive(
Arguments.Mkdir{
.path = PathLike{ .string = PathString.init(this.path) },
.recursive = true,
},
.sync,
);
switch (result) {
.err => |err| {
this.completion(this.completion_ctx, .{ .err = err.withPath(bun.default_allocator.dupe(u8, err.path) catch bun.outOfMemory()) });
},
.result => {
this.completion(this.completion_ctx, JSC.Maybe(void).success);
},
}
}
pub fn schedule(this: *AsyncMkdirp) void {
JSC.WorkPool.schedule(&this.task);
}
};
fn NewUVFSRequest(comptime ReturnType: type, comptime ArgumentType: type, comptime FunctionEnum: NodeFSFunctionEnum) type {
if (!Environment.isWindows) {
return NewAsyncFSTask(ReturnType, ArgumentType, @field(NodeFS, @tagName(FunctionEnum)));
}
switch (FunctionEnum) {
.open,
.close,
.read,
.write,
.readv,
.writev,
=> {},
else => return NewAsyncFSTask(ReturnType, ArgumentType, @field(NodeFS, @tagName(FunctionEnum))),
}
comptime bun.assert(Environment.isWindows);
return struct {
promise: JSC.JSPromise.Strong,
args: ArgumentType,
globalObject: *JSC.JSGlobalObject,
req: uv.fs_t = std.mem.zeroes(uv.fs_t),
result: JSC.Maybe(ReturnType),
ref: bun.Async.KeepAlive = .{},
tracker: JSC.AsyncTaskTracker,
pub const Task = @This();
pub const heap_label = "Async" ++ bun.meta.typeBaseName(@typeName(ArgumentType)) ++ "UvTask";
pub usingnamespace bun.New(@This());
pub fn create(globalObject: *JSC.JSGlobalObject, this: *JSC.Node.NodeJSFS, args: ArgumentType, vm: *JSC.VirtualMachine) JSC.JSValue {
var task = Task.new(.{
.promise = JSC.JSPromise.Strong.init(globalObject),
.args = args,
.result = undefined,
.globalObject = globalObject,
.tracker = JSC.AsyncTaskTracker.init(vm),
});
task.ref.ref(vm);
task.args.toThreadSafe();
task.tracker.didSchedule(globalObject);
const log = bun.sys.syslog;
const loop = uv.Loop.get();
task.req.data = task;
switch (comptime FunctionEnum) {
.open => {
const args_: Arguments.Open = task.args;
const path = if (bun.strings.eqlComptime(args_.path.slice(), "/dev/null")) "\\\\.\\NUL" else args_.path.sliceZ(&this.node_fs.sync_error_buf);
var flags: c_int = @intFromEnum(args_.flags);
flags = uv.O.fromBunO(flags);
var mode: c_int = args_.mode;
if (mode == 0) mode = 0o644;
const rc = uv.uv_fs_open(loop, &task.req, path.ptr, flags, mode, &uv_callback);
bun.debugAssert(rc == .zero);
log("uv open({s}, {d}, {d}) = ~~", .{ path, flags, mode });
},
.close => {
const args_: Arguments.Close = task.args;
const fd = args_.fd.impl().uv();
if (fd == 1 or fd == 2) {
log("uv close({}) SKIPPED", .{fd});
task.result = Maybe(Return.Close).success;
task.globalObject.bunVM().eventLoop().enqueueTask(JSC.Task.init(task));
return task.promise.value();
}
const rc = uv.uv_fs_close(loop, &task.req, fd, &uv_callback);
bun.debugAssert(rc == .zero);
log("uv close({d}) = ~~", .{fd});
},
.read => {
const args_: Arguments.Read = task.args;
const B = uv.uv_buf_t.init;
const fd = args_.fd.impl().uv();
const rc = uv.uv_fs_read(loop, &task.req, fd, &.{B(args_.buffer.slice()[args_.offset..])}, 1, args_.position orelse -1, &uv_callback);
bun.debugAssert(rc == .zero);
log("uv read({d}) = ~~", .{fd});
},
.write => {
const args_: Arguments.Write = task.args;
const B = uv.uv_buf_t.init;
const fd = args_.fd.impl().uv();
const rc = uv.uv_fs_write(loop, &task.req, fd, &.{B(args_.buffer.slice()[args_.offset..])}, 1, args_.position orelse -1, &uv_callback);
bun.debugAssert(rc == .zero);
log("uv write({d}) = ~~", .{fd});
},
.readv => {
const args_: Arguments.Readv = task.args;
const fd = args_.fd.impl().uv();
const bufs = args_.buffers.buffers.items;
const pos: i64 = args_.position orelse -1;
var sum: u64 = 0;
for (bufs) |b| sum += b.slice().len;
const rc = uv.uv_fs_read(loop, &task.req, fd, bufs.ptr, @intCast(bufs.len), pos, &uv_callback);
bun.debugAssert(rc == .zero);
log("uv readv({d}, {*}, {d}, {d}, {d} total bytes) = ~~", .{ fd, bufs.ptr, bufs.len, pos, sum });
},
.writev => {
const args_: Arguments.Writev = task.args;
const fd = args_.fd.impl().uv();
const bufs = args_.buffers.buffers.items;
const pos: i64 = args_.position orelse -1;
var sum: u64 = 0;
for (bufs) |b| sum += b.slice().len;
const rc = uv.uv_fs_write(loop, &task.req, fd, bufs.ptr, @intCast(bufs.len), pos, &uv_callback);
bun.debugAssert(rc == .zero);
log("uv writev({d}, {*}, {d}, {d}, {d} total bytes) = ~~", .{ fd, bufs.ptr, bufs.len, pos, sum });
},
else => comptime unreachable,
}
return task.promise.value();
}
fn uv_callback(req: *uv.fs_t) callconv(.C) void {
defer uv.uv_fs_req_cleanup(req);
const this: *Task = @ptrCast(@alignCast(req.data.?));
var node_fs = NodeFS{};
this.result = @field(NodeFS, "uv_" ++ @tagName(FunctionEnum))(&node_fs, this.args, @intFromEnum(req.result));
if (this.result == .err) {
this.result.err.path = bun.default_allocator.dupe(u8, this.result.err.path) catch "";
std.mem.doNotOptimizeAway(&node_fs);
}
this.globalObject.bunVM().eventLoop().enqueueTask(JSC.Task.init(this));
}
pub fn runFromJSThread(this: *Task) void {
const globalObject = this.globalObject;
var success = @as(JSC.Maybe(ReturnType).Tag, this.result) == .result;
const result = switch (this.result) {
.err => |err| err.toJSC(globalObject),
.result => |*res| brk: {
const out = globalObject.toJS(res, .temporary);
success = out != .zero;
break :brk out;
},
};
var promise_value = this.promise.value();
var promise = this.promise.get();
promise_value.ensureStillAlive();
const tracker = this.tracker;
tracker.willDispatch(globalObject);
defer tracker.didDispatch(globalObject);
this.deinit();
switch (success) {
false => {
promise.reject(globalObject, result);
},
true => {
promise.resolve(globalObject, result);
},
}
}
pub fn deinit(this: *Task) void {
if (this.result == .err) {
bun.default_allocator.free(this.result.err.path);
}
this.ref.unref(this.globalObject.bunVM());
if (@hasDecl(ArgumentType, "deinitAndUnprotect")) {
this.args.deinitAndUnprotect();
} else {
this.args.deinit();
}
this.promise.deinit();
this.destroy();
}
};
}
fn NewAsyncFSTask(comptime ReturnType: type, comptime ArgumentType: type, comptime Function: anytype) type {
return struct {
promise: JSC.JSPromise.Strong,
args: ArgumentType,
globalObject: *JSC.JSGlobalObject,
task: JSC.WorkPoolTask = .{ .callback = &workPoolCallback },
result: JSC.Maybe(ReturnType),
ref: bun.Async.KeepAlive = .{},
tracker: JSC.AsyncTaskTracker,
pub const Task = @This();
pub const heap_label = "Async" ++ bun.meta.typeBaseName(@typeName(ArgumentType)) ++ "Task";
pub fn create(
globalObject: *JSC.JSGlobalObject,
_: *JSC.Node.NodeJSFS,
args: ArgumentType,
vm: *JSC.VirtualMachine,
) JSC.JSValue {
var task = bun.new(
Task,
Task{
.promise = JSC.JSPromise.Strong.init(globalObject),
.args = args,
.result = undefined,
.globalObject = globalObject,
.tracker = JSC.AsyncTaskTracker.init(vm),
},
);
task.ref.ref(vm);
task.args.toThreadSafe();
task.tracker.didSchedule(globalObject);
JSC.WorkPool.schedule(&task.task);
return task.promise.value();
}
fn workPoolCallback(task: *JSC.WorkPoolTask) void {
var this: *Task = @alignCast(@fieldParentPtr("task", task));
var node_fs = NodeFS{};
this.result = Function(&node_fs, this.args, .promise);
if (this.result == .err) {
this.result.err.path = bun.default_allocator.dupe(u8, this.result.err.path) catch "";
std.mem.doNotOptimizeAway(&node_fs);
}
this.globalObject.bunVMConcurrently().eventLoop().enqueueTaskConcurrent(JSC.ConcurrentTask.createFrom(this));
}
pub fn runFromJSThread(this: *Task) void {
const globalObject = this.globalObject;
var success = @as(JSC.Maybe(ReturnType).Tag, this.result) == .result;
const result = switch (this.result) {
.err => |err| err.toJSC(globalObject),
.result => |*res| brk: {
const out = globalObject.toJS(res, .temporary);
success = out != .zero;
break :brk out;
},
};
var promise_value = this.promise.value();
var promise = this.promise.get();
promise_value.ensureStillAlive();
const tracker = this.tracker;
tracker.willDispatch(globalObject);
defer tracker.didDispatch(globalObject);
this.deinit();
switch (success) {
false => {
promise.reject(globalObject, result);
},
true => {
promise.resolve(globalObject, result);
},
}
}
pub fn deinit(this: *Task) void {
if (this.result == .err) {
bun.default_allocator.free(this.result.err.path);
}
this.ref.unref(this.globalObject.bunVM());
if (@hasDecl(ArgumentType, "deinitAndUnprotect")) {
this.args.deinitAndUnprotect();
} else {
this.args.deinit();
}
this.promise.deinit();
bun.destroy(this);
}
};
}
};
pub const AsyncCpTask = NewAsyncCpTask(false);
pub const ShellAsyncCpTask = NewAsyncCpTask(true);
pub fn NewAsyncCpTask(comptime is_shell: bool) type {
const ShellTask = bun.shell.Interpreter.Builtin.Cp.ShellCpTask;
const ShellTaskT = if (is_shell) *ShellTask else u0;
return struct {
promise: JSC.JSPromise.Strong = .{},
args: Arguments.Cp,
evtloop: JSC.EventLoopHandle,
task: JSC.WorkPoolTask = .{ .callback = &workPoolCallback },
result: JSC.Maybe(Return.Cp),
/// If this task is called by the shell then we shouldn't call this as
/// it is not threadsafe and is unnecessary as the process will be kept
/// alive by the shell instance
ref: if (!is_shell) bun.Async.KeepAlive else struct {} = .{},
arena: bun.ArenaAllocator,
tracker: JSC.AsyncTaskTracker,
has_result: std.atomic.Value(bool),
/// On each creation of a `AsyncCpSingleFileTask`, this is incremented.
/// When each task is finished, decrement.
/// The maintask thread starts this at 1 and decrements it at the end, to avoid the promise being resolved while new tasks may be added.
subtask_count: std.atomic.Value(usize),
deinitialized: bool = false,
shelltask: ShellTaskT,
const ThisAsyncCpTask = @This();
/// This task is used by `AsyncCpTask/fs.promises.cp` to copy a single file.
/// When clonefile cannot be used, this task is started once per file.
pub const SingleTask = struct {
cp_task: *ThisAsyncCpTask,
src: bun.OSPathSliceZ,
dest: bun.OSPathSliceZ,
task: JSC.WorkPoolTask = .{ .callback = &SingleTask.workPoolCallback },
const ThisSingleTask = @This();
pub fn create(
parent: *ThisAsyncCpTask,
src: bun.OSPathSliceZ,
dest: bun.OSPathSliceZ,
) void {
var task = bun.new(ThisSingleTask, .{
.cp_task = parent,
.src = src,
.dest = dest,
});
JSC.WorkPool.schedule(&task.task);
}
fn workPoolCallback(task: *JSC.WorkPoolTask) void {
var this: *ThisSingleTask = @fieldParentPtr("task", task);
// TODO: error strings on node_fs will die
var node_fs = NodeFS{};
const args = this.cp_task.args;
const result = node_fs._copySingleFileSync(
this.src,
this.dest,
@enumFromInt((if (args.flags.errorOnExist or !args.flags.force) Constants.COPYFILE_EXCL else @as(u8, 0))),
null,
this.cp_task.args,
);
brk: {
switch (result) {
.err => |err| {
if (err.errno == @intFromEnum(E.EXIST) and !args.flags.errorOnExist) {
break :brk;
}
this.cp_task.finishConcurrently(result);
this.deinit();
return;
},
.result => {
this.cp_task.onCopy(this.src, this.dest);
},
}
}
const old_count = this.cp_task.subtask_count.fetchSub(1, .monotonic);
if (old_count == 1) {
this.cp_task.finishConcurrently(Maybe(Return.Cp).success);
}
this.deinit();
}
pub fn deinit(this: *ThisSingleTask) void {
// There is only one path buffer for both paths. 2 extra bytes are the nulls at the end of each
bun.default_allocator.free(this.src.ptr[0 .. this.src.len + this.dest.len + 2]);
bun.destroy(this);
}
};
pub fn onCopy(this: *ThisAsyncCpTask, src: anytype, dest: anytype) void {
if (comptime !is_shell) return;
const task = this.shelltask;
task.cpOnCopy(src, dest);
}
pub fn onFinish(this: *ThisAsyncCpTask, result: Maybe(void)) void {
if (comptime !is_shell) return;
const task = this.shelltask;
task.cpOnFinish(result);
}
pub fn create(
globalObject: *JSC.JSGlobalObject,
_: *JSC.Node.NodeJSFS,
cp_args: Arguments.Cp,
vm: *JSC.VirtualMachine,
arena: bun.ArenaAllocator,
) JSC.JSValue {
const task = createWithShellTask(globalObject, cp_args, vm, arena, 0, true);
return task.promise.value();
}
pub fn createWithShellTask(
globalObject: *JSC.JSGlobalObject,
cp_args: Arguments.Cp,
vm: *JSC.VirtualMachine,
arena: bun.ArenaAllocator,
shelltask: ShellTaskT,
comptime enable_promise: bool,
) *ThisAsyncCpTask {
var task = bun.new(
ThisAsyncCpTask,
ThisAsyncCpTask{
.promise = if (comptime enable_promise) JSC.JSPromise.Strong.init(globalObject) else .{},
.args = cp_args,
.has_result = .{ .raw = false },
.result = undefined,
.evtloop = .{ .js = vm.event_loop },
.tracker = JSC.AsyncTaskTracker.init(vm),
.arena = arena,
.subtask_count = .{ .raw = 1 },
.shelltask = shelltask,
},
);
if (comptime !is_shell) task.ref.ref(vm);
task.args.src.toThreadSafe();
task.args.dest.toThreadSafe();
task.tracker.didSchedule(globalObject);
JSC.WorkPool.schedule(&task.task);
return task;
}
pub fn createMini(
cp_args: Arguments.Cp,
mini: *JSC.MiniEventLoop,
arena: bun.ArenaAllocator,
shelltask: *ShellTask,
) *ThisAsyncCpTask {
var task = bun.new(
ThisAsyncCpTask,
ThisAsyncCpTask{
.args = cp_args,
.has_result = .{ .raw = false },
.result = undefined,
.evtloop = .{ .mini = mini },
.tracker = JSC.AsyncTaskTracker{ .id = 0 },
.arena = arena,
.subtask_count = .{ .raw = 1 },
.shelltask = shelltask,
},
);
if (comptime !is_shell) task.ref.ref(mini);
task.args.src.toThreadSafe();
task.args.dest.toThreadSafe();
JSC.WorkPool.schedule(&task.task);
return task;
}
fn workPoolCallback(task: *JSC.WorkPoolTask) void {
const this: *ThisAsyncCpTask = @alignCast(@fieldParentPtr("task", task));
var node_fs = NodeFS{};
ThisAsyncCpTask.cpAsync(&node_fs, this);
}
/// May be called from any thread (the subtasks)
fn finishConcurrently(this: *ThisAsyncCpTask, result: Maybe(Return.Cp)) void {
if (this.has_result.cmpxchgStrong(false, true, .monotonic, .monotonic)) |_| {
return;
}
this.result = result;
if (this.result == .err) {
this.result.err.path = bun.default_allocator.dupe(u8, this.result.err.path) catch "";
}
if (this.evtloop == .js) {
this.evtloop.enqueueTaskConcurrent(.{ .js = JSC.ConcurrentTask.fromCallback(this, runFromJSThread) });
} else {
this.evtloop.enqueueTaskConcurrent(.{ .mini = JSC.AnyTaskWithExtraContext.fromCallbackAutoDeinit(this, "runFromJSThreadMini") });
}
}
pub fn runFromJSThreadMini(this: *ThisAsyncCpTask, _: *void) void {
this.runFromJSThread();
}
fn runFromJSThread(this: *ThisAsyncCpTask) void {
if (comptime is_shell) {
this.shelltask.cpOnFinish(this.result);
this.deinit();
return;
}
const globalObject = this.evtloop.globalObject() orelse {
@panic("No global object, this indicates a bug in Bun. Please file a GitHub issue.");
};
var success = @as(JSC.Maybe(Return.Cp).Tag, this.result) == .result;
const result = switch (this.result) {
.err => |err| err.toJSC(globalObject),
.result => |*res| brk: {
const out = globalObject.toJS(res, .temporary);
success = out != .zero;
break :brk out;
},
};
var promise_value = this.promise.value();
var promise = this.promise.get();
promise_value.ensureStillAlive();
const tracker = this.tracker;
tracker.willDispatch(globalObject);
defer tracker.didDispatch(globalObject);
this.deinit();
switch (success) {
false => {
promise.reject(globalObject, result);
},
true => {
promise.resolve(globalObject, result);
},
}
}
pub fn deinit(this: *ThisAsyncCpTask) void {
bun.assert(!this.deinitialized);
this.deinitialized = true;
if (comptime !is_shell) this.ref.unref(this.evtloop);
this.args.deinit();
this.promise.deinit();
this.arena.deinit();
bun.destroy(this);
}
/// Directory scanning + clonefile will block this thread, then each individual file copy (what the sync version
/// calls "_copySingleFileSync") will be dispatched as a separate task.
pub fn cpAsync(
nodefs: *NodeFS,
this: *ThisAsyncCpTask,
) void {
const args = this.args;
var src_buf: bun.OSPathBuffer = undefined;
var dest_buf: bun.OSPathBuffer = undefined;
const src = args.src.osPath(@ptrCast(&src_buf));
const dest = args.dest.osPath(@ptrCast(&dest_buf));
if (Environment.isWindows) {
const attributes = windows.GetFileAttributesW(src);
if (attributes == windows.INVALID_FILE_ATTRIBUTES) {
this.finishConcurrently(.{ .err = .{
.errno = @intFromEnum(C.SystemErrno.ENOENT),
.syscall = .copyfile,
.path = nodefs.osPathIntoSyncErrorBuf(src),
} });
return;
}
const file_or_symlink = (attributes & windows.FILE_ATTRIBUTE_DIRECTORY) == 0 or (attributes & windows.FILE_ATTRIBUTE_REPARSE_POINT) != 0;
if (file_or_symlink) {
const r = nodefs._copySingleFileSync(
src,
dest,
if (comptime is_shell)
// Shell always forces copy
@enumFromInt(Constants.Copyfile.force)
else
@enumFromInt((if (args.flags.errorOnExist or !args.flags.force) Constants.COPYFILE_EXCL else @as(u8, 0))),
attributes,
this.args,
);
if (r == .err and r.err.errno == @intFromEnum(E.EXIST) and !args.flags.errorOnExist) {
this.finishConcurrently(Maybe(Return.Cp).success);
return;
}
this.onCopy(src, dest);
this.finishConcurrently(r);
return;
}
} else {
const stat_ = switch (Syscall.lstat(src)) {
.result => |result| result,
.err => |err| {
@memcpy(nodefs.sync_error_buf[0..src.len], src);
this.finishConcurrently(.{ .err = err.withPath(nodefs.sync_error_buf[0..src.len]) });
return;
},
};
if (!bun.S.ISDIR(stat_.mode)) {
// This is the only file, there is no point in dispatching subtasks
const r = nodefs._copySingleFileSync(
src,
dest,
@enumFromInt((if (args.flags.errorOnExist or !args.flags.force) Constants.COPYFILE_EXCL else @as(u8, 0))),
stat_,
this.args,
);
if (r == .err and r.err.errno == @intFromEnum(E.EXIST) and !args.flags.errorOnExist) {
this.onCopy(src, dest);
this.finishConcurrently(Maybe(Return.Cp).success);
return;
}
this.onCopy(src, dest);
this.finishConcurrently(r);
return;
}
}
if (!args.flags.recursive) {
this.finishConcurrently(.{ .err = .{
.errno = @intFromEnum(E.ISDIR),
.syscall = .copyfile,
.path = nodefs.osPathIntoSyncErrorBuf(src),
} });
return;
}
const success = ThisAsyncCpTask._cpAsyncDirectory(nodefs, args.flags, this, &src_buf, @intCast(src.len), &dest_buf, @intCast(dest.len));
const old_count = this.subtask_count.fetchSub(1, .monotonic);
if (success and old_count == 1) {
this.finishConcurrently(Maybe(Return.Cp).success);
}
}
// returns boolean `should_continue`
fn _cpAsyncDirectory(
nodefs: *NodeFS,
args: Arguments.Cp.Flags,
this: *ThisAsyncCpTask,
src_buf: *bun.OSPathBuffer,
src_dir_len: PathString.PathInt,
dest_buf: *bun.OSPathBuffer,
dest_dir_len: PathString.PathInt,
) bool {
const src = src_buf[0..src_dir_len :0];
const dest = dest_buf[0..dest_dir_len :0];
if (comptime Environment.isMac) {
if (Maybe(Return.Cp).errnoSysP(C.clonefile(src, dest, 0), .clonefile, src)) |err| {
switch (err.getErrno()) {
.ACCES,
.NAMETOOLONG,
.ROFS,
.PERM,
.INVAL,
=> {
@memcpy(nodefs.sync_error_buf[0..src.len], src);
this.finishConcurrently(.{ .err = err.err.withPath(nodefs.sync_error_buf[0..src.len]) });
return false;
},
// Other errors may be due to clonefile() not being supported
// We'll fall back to other implementations
else => {},
}
} else {
return true;
}
}
const open_flags = bun.O.DIRECTORY | bun.O.RDONLY;
const fd = switch (Syscall.openatOSPath(bun.FD.cwd(), src, open_flags, 0)) {
.err => |err| {
this.finishConcurrently(.{ .err = err.withPath(nodefs.osPathIntoSyncErrorBuf(src)) });
return false;
},
.result => |fd_| fd_,
};
defer _ = Syscall.close(fd);
var buf: bun.OSPathBuffer = undefined;
const normdest: bun.OSPathSliceZ = if (Environment.isWindows)
switch (bun.sys.normalizePathWindows(u16, bun.invalid_fd, dest, &buf)) {
.err => |err| {
this.finishConcurrently(.{ .err = err });
return false;
},
.result => |normdest| normdest,
}
else
dest;
const mkdir_ = nodefs.mkdirRecursiveOSPath(normdest, Arguments.Mkdir.DefaultMode, false);
switch (mkdir_) {
.err => |err| {
this.finishConcurrently(.{ .err = err });
return false;
},
.result => {
this.onCopy(src, normdest);
},
}
const dir = fd.asDir();
var iterator = DirIterator.iterate(dir, if (Environment.isWindows) .u16 else .u8);
var entry = iterator.next();
while (switch (entry) {
.err => |err| {
// @memcpy(this.sync_error_buf[0..src.len], src);
this.finishConcurrently(.{ .err = err.withPath(nodefs.osPathIntoSyncErrorBuf(src)) });
return false;
},
.result => |ent| ent,
}) |current| : (entry = iterator.next()) {
switch (current.kind) {
.directory => {
const cname = current.name.slice();
@memcpy(src_buf[src_dir_len + 1 .. src_dir_len + 1 + cname.len], cname);
src_buf[src_dir_len] = std.fs.path.sep;
src_buf[src_dir_len + 1 + cname.len] = 0;
@memcpy(dest_buf[dest_dir_len + 1 .. dest_dir_len + 1 + cname.len], cname);
dest_buf[dest_dir_len] = std.fs.path.sep;
dest_buf[dest_dir_len + 1 + cname.len] = 0;
const should_continue = ThisAsyncCpTask._cpAsyncDirectory(
nodefs,
args,
this,
src_buf,
@truncate(src_dir_len + 1 + cname.len),
dest_buf,
@truncate(dest_dir_len + 1 + cname.len),
);
if (!should_continue) return false;
},
else => {
_ = this.subtask_count.fetchAdd(1, .monotonic);
const cname = current.name.slice();
// Allocate a path buffer for the path data
var path_buf = bun.default_allocator.alloc(
bun.OSPathChar,
src_dir_len + 1 + cname.len + 1 + dest_dir_len + 1 + cname.len + 1,
) catch bun.outOfMemory();
@memcpy(path_buf[0..src_dir_len], src_buf[0..src_dir_len]);
path_buf[src_dir_len] = std.fs.path.sep;
@memcpy(path_buf[src_dir_len + 1 .. src_dir_len + 1 + cname.len], cname);
path_buf[src_dir_len + 1 + cname.len] = 0;
@memcpy(path_buf[src_dir_len + 1 + cname.len + 1 .. src_dir_len + 1 + cname.len + 1 + dest_dir_len], dest_buf[0..dest_dir_len]);
path_buf[src_dir_len + 1 + cname.len + 1 + dest_dir_len] = std.fs.path.sep;
@memcpy(path_buf[src_dir_len + 1 + cname.len + 1 + dest_dir_len + 1 .. src_dir_len + 1 + cname.len + 1 + dest_dir_len + 1 + cname.len], cname);
path_buf[src_dir_len + 1 + cname.len + 1 + dest_dir_len + 1 + cname.len] = 0;
SingleTask.create(
this,
path_buf[0 .. src_dir_len + 1 + cname.len :0],
path_buf[src_dir_len + 1 + cname.len + 1 .. src_dir_len + 1 + cname.len + 1 + dest_dir_len + 1 + cname.len :0],
);
},
}
}
return true;
}
};
}
pub const AsyncReaddirRecursiveTask = struct {
promise: JSC.JSPromise.Strong,
args: Arguments.Readdir,
globalObject: *JSC.JSGlobalObject,
task: JSC.WorkPoolTask = .{ .callback = &workPoolCallback },
ref: bun.Async.KeepAlive = .{},
tracker: JSC.AsyncTaskTracker,
// It's not 100% clear this one is necessary
has_result: std.atomic.Value(bool),
subtask_count: std.atomic.Value(usize),
/// The final result list
result_list: ResultListEntry.Value = undefined,
/// When joining the result list, we use this to preallocate the joined array.
result_list_count: std.atomic.Value(usize) = std.atomic.Value(usize).init(0),
/// A lockless queue of result lists.
///
/// Using a lockless queue instead of mutex + joining the lists as we go was a meaningful performance improvement
result_list_queue: ResultListEntry.Queue = ResultListEntry.Queue{},
/// All the subtasks will use this fd to open files
root_fd: FileDescriptor = bun.invalid_fd,
/// This isued when joining the file paths for error messages
root_path: PathString = PathString.empty,
pending_err: ?Syscall.Error = null,
pending_err_mutex: bun.Lock = .{},
pub usingnamespace bun.New(@This());
pub const ResultListEntry = struct {
pub const Value = union(Return.Readdir.Tag) {
with_file_types: std.ArrayList(Dirent),
buffers: std.ArrayList(Buffer),
files: std.ArrayList(bun.String),
pub fn deinit(this: *@This()) void {
switch (this.*) {
.with_file_types => |*res| {
for (res.items) |item| {
item.deref();
}
res.clearAndFree();
},
.buffers => |*res| {
for (res.items) |item| {
bun.default_allocator.free(item.buffer.byteSlice());
}
res.clearAndFree();
},
.files => |*res| {
for (res.items) |item| {
item.deref();
}
res.clearAndFree();
},
}
}
};
next: ?*ResultListEntry = null,
value: Value,
pub const Queue = bun.UnboundedQueue(ResultListEntry, .next);
};
pub const Subtask = struct {
readdir_task: *AsyncReaddirRecursiveTask,
basename: bun.PathString = bun.PathString.empty,
task: JSC.WorkPoolTask = .{ .callback = call },
pub usingnamespace bun.New(@This());
pub fn call(task: *JSC.WorkPoolTask) void {
var this: *Subtask = @alignCast(@fieldParentPtr("task", task));
defer {
bun.default_allocator.free(this.basename.sliceAssumeZ());
this.destroy();
}
var buf: bun.PathBuffer = undefined;
this.readdir_task.performWork(this.basename.sliceAssumeZ(), &buf, false);
}
};
pub fn enqueue(
readdir_task: *AsyncReaddirRecursiveTask,
basename: [:0]const u8,
) void {
var task = Subtask.new(
.{
.readdir_task = readdir_task,
.basename = bun.PathString.init(bun.default_allocator.dupeZ(u8, basename) catch bun.outOfMemory()),
},
);
bun.assert(readdir_task.subtask_count.fetchAdd(1, .monotonic) > 0);
JSC.WorkPool.schedule(&task.task);
}
pub fn create(
globalObject: *JSC.JSGlobalObject,
args: Arguments.Readdir,
vm: *JSC.VirtualMachine,
) JSC.JSValue {
var task = AsyncReaddirRecursiveTask.new(.{
.promise = JSC.JSPromise.Strong.init(globalObject),
.args = args,
.has_result = .{ .raw = false },
.globalObject = globalObject,
.tracker = JSC.AsyncTaskTracker.init(vm),
.subtask_count = .{ .raw = 1 },
.root_path = PathString.init(bun.default_allocator.dupeZ(u8, args.path.slice()) catch bun.outOfMemory()),
.result_list = switch (args.tag()) {
.files => .{ .files = std.ArrayList(bun.String).init(bun.default_allocator) },
.with_file_types => .{ .with_file_types = std.ArrayList(Dirent).init(bun.default_allocator) },
.buffers => .{ .buffers = std.ArrayList(Buffer).init(bun.default_allocator) },
},
});
task.ref.ref(vm);
task.args.toThreadSafe();
task.tracker.didSchedule(globalObject);
JSC.WorkPool.schedule(&task.task);
return task.promise.value();
}
pub fn performWork(this: *AsyncReaddirRecursiveTask, basename: [:0]const u8, buf: *bun.PathBuffer, comptime is_root: bool) void {
switch (this.args.tag()) {
inline else => |tag| {
const ResultType = comptime switch (tag) {
.files => bun.String,
.with_file_types => Dirent,
.buffers => Buffer,
};
var stack = std.heap.stackFallback(8192, bun.default_allocator);
// This is a stack-local copy to avoid resizing heap-allocated arrays in the common case of a small directory
var entries = std.ArrayList(ResultType).init(stack.get());
defer entries.deinit();
switch (NodeFS.readdirWithEntriesRecursiveAsync(
buf,
this.args,
this,
basename,
ResultType,
&entries,
is_root,
)) {
.err => |err| {
for (entries.items) |*item| {
switch (ResultType) {
bun.String => item.deref(),
Dirent => item.deref(),
Buffer => bun.default_allocator.free(item.buffer.byteSlice()),
else => @compileError("unreachable"),
}
}
{
this.pending_err_mutex.lock();
defer this.pending_err_mutex.unlock();
if (this.pending_err == null) {
const err_path = if (err.path.len > 0) err.path else this.args.path.slice();
this.pending_err = err.withPath(bun.default_allocator.dupe(u8, err_path) catch "");
}
}
if (this.subtask_count.fetchSub(1, .monotonic) == 1) {
this.finishConcurrently();
}
},
.result => {
this.writeResults(ResultType, &entries);
},
}
},
}
}
fn workPoolCallback(task: *JSC.WorkPoolTask) void {
var this: *AsyncReaddirRecursiveTask = @alignCast(@fieldParentPtr("task", task));
var buf: bun.PathBuffer = undefined;
this.performWork(this.root_path.sliceAssumeZ(), &buf, true);
}
pub fn writeResults(this: *AsyncReaddirRecursiveTask, comptime ResultType: type, result: *std.ArrayList(ResultType)) void {
if (result.items.len > 0) {
const Field = switch (ResultType) {
bun.String => .files,
Dirent => .with_file_types,
Buffer => .buffers,
else => @compileError("unreachable"),
};
const list = bun.default_allocator.create(ResultListEntry) catch bun.outOfMemory();
errdefer {
bun.default_allocator.destroy(list);
}
var clone = std.ArrayList(ResultType).initCapacity(bun.default_allocator, result.items.len) catch bun.outOfMemory();
clone.appendSliceAssumeCapacity(result.items);
_ = this.result_list_count.fetchAdd(clone.items.len, .monotonic);
list.* = ResultListEntry{ .next = null, .value = @unionInit(ResultListEntry.Value, @tagName(Field), clone) };
this.result_list_queue.push(list);
}
if (this.subtask_count.fetchSub(1, .monotonic) == 1) {
this.finishConcurrently();
}
}
/// May be called from any thread (the subtasks)
pub fn finishConcurrently(this: *AsyncReaddirRecursiveTask) void {
if (this.has_result.cmpxchgStrong(false, true, .monotonic, .monotonic)) |_| {
return;
}
bun.assert(this.subtask_count.load(.monotonic) == 0);
const root_fd = this.root_fd;
if (root_fd != bun.invalid_fd) {
this.root_fd = bun.invalid_fd;
_ = Syscall.close(root_fd);
bun.default_allocator.free(this.root_path.slice());
this.root_path = PathString.empty;
}
if (this.pending_err != null) {
this.clearResultList();
}
{
var list = this.result_list_queue.popBatch();
var iter = list.iterator();
// we have to free only the previous one because the next value will
// be read by the iterator.
var to_destroy: ?*ResultListEntry = null;
switch (this.args.tag()) {
inline else => |tag| {
var results = &@field(this.result_list, @tagName(tag));
results.ensureTotalCapacityPrecise(this.result_list_count.swap(0, .monotonic)) catch bun.outOfMemory();
while (iter.next()) |val| {
if (to_destroy) |dest| {
bun.default_allocator.destroy(dest);
}
to_destroy = val;
var to_copy = &@field(val.value, @tagName(tag));
results.appendSliceAssumeCapacity(to_copy.items);
to_copy.clearAndFree();
}
if (to_destroy) |dest| {
bun.default_allocator.destroy(dest);
}
},
}
}
this.globalObject.bunVMConcurrently().enqueueTaskConcurrent(JSC.ConcurrentTask.create(JSC.Task.init(this)));
}
fn clearResultList(this: *AsyncReaddirRecursiveTask) void {
this.result_list.deinit();
var batch = this.result_list_queue.popBatch();
var iter = batch.iterator();
var to_destroy: ?*ResultListEntry = null;
while (iter.next()) |val| {
val.value.deinit();
if (to_destroy) |dest| {
bun.default_allocator.destroy(dest);
}
to_destroy = val;
}
if (to_destroy) |dest| {
bun.default_allocator.destroy(dest);
}
this.result_list_count.store(0, .monotonic);
}
pub fn runFromJSThread(this: *AsyncReaddirRecursiveTask) void {
const globalObject = this.globalObject;
var success = this.pending_err == null;
const result = if (this.pending_err) |*err| err.toJSC(globalObject) else brk: {
const res = switch (this.result_list) {
.with_file_types => |*res| Return.Readdir{ .with_file_types = res.moveToUnmanaged().items },
.buffers => |*res| Return.Readdir{ .buffers = res.moveToUnmanaged().items },
.files => |*res| Return.Readdir{ .files = res.moveToUnmanaged().items },
};
const out = res.toJS(globalObject);
if (out == .zero) {
success = false;
}
break :brk out;
};
var promise_value = this.promise.value();
var promise = this.promise.get();
promise_value.ensureStillAlive();
const tracker = this.tracker;
tracker.willDispatch(globalObject);
defer tracker.didDispatch(globalObject);
this.deinit();
switch (success) {
false => {
promise.reject(globalObject, result);
},
true => {
promise.resolve(globalObject, result);
},
}
}
pub fn deinit(this: *AsyncReaddirRecursiveTask) void {
bun.assert(this.root_fd == bun.invalid_fd); // should already have closed it
if (this.pending_err) |*err| {
bun.default_allocator.free(err.path);
}
this.ref.unref(this.globalObject.bunVM());
this.args.deinit();
bun.default_allocator.free(this.root_path.slice());
this.clearResultList();
this.promise.deinit();
this.destroy();
}
};
// TODO: to improve performance for all of these
// The tagged unions for each type should become regular unions
// and the tags should be passed in as comptime arguments to the functions performing the syscalls
// This would reduce stack size, at the cost of instruction cache misses
pub const Arguments = struct {
pub const Rename = struct {
old_path: PathLike,
new_path: PathLike,
pub fn deinit(this: @This()) void {
this.old_path.deinit();
this.new_path.deinit();
}
pub fn deinitAndUnprotect(this: @This()) void {
this.old_path.deinitAndUnprotect();
this.new_path.deinitAndUnprotect();
}
pub fn toThreadSafe(this: *@This()) void {
this.old_path.toThreadSafe();
this.new_path.toThreadSafe();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Rename {
const old_path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("oldPath must be a string or TypedArray", .{});
};
const new_path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("newPath must be a string or TypedArray", .{});
};
return Rename{ .old_path = old_path, .new_path = new_path };
}
};
pub const Truncate = struct {
/// Passing a file descriptor is deprecated and may result in an error being thrown in the future.
path: PathOrFileDescriptor,
len: JSC.WebCore.Blob.SizeType = 0,
flags: i32 = 0,
pub fn deinit(this: @This()) void {
this.path.deinit();
}
pub fn deinitAndUnprotect(this: *@This()) void {
this.path.deinitAndUnprotect();
}
pub fn toThreadSafe(this: *@This()) void {
this.path.toThreadSafe();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Truncate {
const path = try PathOrFileDescriptor.fromJS(ctx, arguments, bun.default_allocator) orelse {
return ctx.throwInvalidArguments("path must be a string or TypedArray", .{});
};
const len: JSC.WebCore.Blob.SizeType = brk: {
const len_value = arguments.next() orelse break :brk 0;
if (len_value.isNumber()) {
arguments.eat();
break :brk len_value.to(JSC.WebCore.Blob.SizeType);
}
break :brk 0;
};
return Truncate{ .path = path, .len = len };
}
};
pub const Writev = struct {
fd: FileDescriptor,
buffers: JSC.Node.VectorArrayBuffer,
position: ?u52 = 0,
pub fn deinit(_: *const @This()) void {}
pub fn deinitAndUnprotect(this: *const @This()) void {
this.buffers.value.unprotect();
this.buffers.buffers.deinit();
}
pub fn toThreadSafe(this: *@This()) void {
this.buffers.value.protect();
const clone = bun.default_allocator.dupe(bun.PlatformIOVec, this.buffers.buffers.items) catch bun.outOfMemory();
this.buffers.buffers.deinit();
this.buffers.buffers.items = clone;
this.buffers.buffers.capacity = clone.len;
this.buffers.buffers.allocator = bun.default_allocator;
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Writev {
const fd_value = arguments.nextEat() orelse {
return ctx.throwInvalidArguments("file descriptor is required", .{});
};
const fd = try JSC.Node.fileDescriptorFromJS(ctx, fd_value) orelse {
return ctx.throwInvalidArguments("file descriptor must be a number", .{});
};
const buffers = try JSC.Node.VectorArrayBuffer.fromJS(
ctx,
arguments.protectEatNext() orelse {
return ctx.throwInvalidArguments("Expected an ArrayBufferView[]", .{});
},
arguments.arena.allocator(),
);
var position: ?u52 = null;
if (arguments.nextEat()) |pos_value| {
if (!pos_value.isUndefinedOrNull()) {
if (pos_value.isNumber()) {
position = pos_value.to(u52);
} else {
return ctx.throwInvalidArguments("position must be a number", .{});
}
}
}
return Writev{ .fd = fd, .buffers = buffers, .position = position };
}
};
pub const Readv = struct {
fd: FileDescriptor,
buffers: JSC.Node.VectorArrayBuffer,
position: ?u52 = 0,
pub fn deinit(this: *const @This()) void {
_ = this;
}
pub fn deinitAndUnprotect(this: *const @This()) void {
this.buffers.value.unprotect();
this.buffers.buffers.deinit();
}
pub fn toThreadSafe(this: *@This()) void {
this.buffers.value.protect();
const clone = bun.default_allocator.dupe(bun.PlatformIOVec, this.buffers.buffers.items) catch bun.outOfMemory();
this.buffers.buffers.deinit();
this.buffers.buffers.items = clone;
this.buffers.buffers.capacity = clone.len;
this.buffers.buffers.allocator = bun.default_allocator;
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Readv {
const fd_value = arguments.nextEat() orelse {
return ctx.throwInvalidArguments("file descriptor is required", .{});
};
const fd = try JSC.Node.fileDescriptorFromJS(ctx, fd_value) orelse {
return ctx.throwInvalidArguments("file descriptor must be a number", .{});
};
const buffers = try JSC.Node.VectorArrayBuffer.fromJS(
ctx,
arguments.protectEatNext() orelse {
return ctx.throwInvalidArguments("Expected an ArrayBufferView[]", .{});
},
arguments.arena.allocator(),
);
var position: ?u52 = null;
if (arguments.nextEat()) |pos_value| {
if (!pos_value.isUndefinedOrNull()) {
if (pos_value.isNumber()) {
position = pos_value.to(u52);
} else {
return ctx.throwInvalidArguments("position must be a number", .{});
}
}
}
return Readv{ .fd = fd, .buffers = buffers, .position = position };
}
};
pub const FTruncate = struct {
fd: FileDescriptor,
len: ?JSC.WebCore.Blob.SizeType = null,
pub fn deinit(this: @This()) void {
_ = this;
}
pub fn deinitAndUnprotect(this: *@This()) void {
_ = this;
}
pub fn toThreadSafe(this: *const @This()) void {
_ = this;
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!FTruncate {
const fd = try JSC.Node.fileDescriptorFromJS(ctx, arguments.next() orelse {
return ctx.throwInvalidArguments("file descriptor is required", .{});
}) orelse {
return ctx.throwInvalidArguments("file descriptor must be a number", .{});
};
arguments.eat();
const len: JSC.WebCore.Blob.SizeType = brk: {
const len_value = arguments.next() orelse break :brk 0;
if (len_value.isNumber()) {
arguments.eat();
break :brk len_value.to(JSC.WebCore.Blob.SizeType);
}
break :brk 0;
};
return FTruncate{ .fd = fd, .len = len };
}
};
pub const Chown = struct {
path: PathLike,
uid: uid_t = 0,
gid: gid_t = 0,
pub fn deinit(this: @This()) void {
this.path.deinit();
}
pub fn deinitAndUnprotect(this: *@This()) void {
this.path.deinitAndUnprotect();
}
pub fn toThreadSafe(this: *@This()) void {
this.path.toThreadSafe();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Chown {
const path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("path must be a string or TypedArray", .{});
};
errdefer path.deinit();
const uid: uid_t = brk: {
const uid_value = arguments.next() orelse break :brk {
return ctx.throwInvalidArguments("uid is required", .{});
};
arguments.eat();
if (!uid_value.isNumber()) {
return ctx.throwInvalidArgumentTypeValue("uid", "number", uid_value);
}
break :brk @as(uid_t, @intCast(uid_value.toInt32()));
};
const gid: gid_t = brk: {
const gid_value = arguments.next() orelse break :brk {
return ctx.throwInvalidArguments("gid is required", .{});
};
arguments.eat();
if (!gid_value.isNumber()) {
return ctx.throwInvalidArgumentTypeValue("gid", "number", gid_value);
}
break :brk @as(gid_t, @intCast(gid_value.toInt32()));
};
return Chown{ .path = path, .uid = uid, .gid = gid };
}
};
pub const Fchown = struct {
fd: FileDescriptor,
uid: uid_t,
gid: gid_t,
pub fn deinit(_: @This()) void {}
pub fn toThreadSafe(_: *const @This()) void {}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Fchown {
const fd = try JSC.Node.fileDescriptorFromJS(ctx, arguments.next() orelse {
return ctx.throwInvalidArguments("file descriptor is required", .{});
}) orelse {
return ctx.throwInvalidArguments("file descriptor must be a number", .{});
};
const uid: uid_t = brk: {
const uid_value = arguments.next() orelse break :brk {
return ctx.throwInvalidArguments("uid is required", .{});
};
arguments.eat();
break :brk @as(uid_t, @intCast(uid_value.toInt32()));
};
const gid: gid_t = brk: {
const gid_value = arguments.next() orelse break :brk {
return ctx.throwInvalidArguments("gid is required", .{});
};
arguments.eat();
break :brk @as(gid_t, @intCast(gid_value.toInt32()));
};
return Fchown{ .fd = fd, .uid = uid, .gid = gid };
}
};
pub const LChown = Chown;
pub const Lutimes = struct {
path: PathLike,
atime: TimeLike,
mtime: TimeLike,
pub fn deinit(this: @This()) void {
this.path.deinit();
}
pub fn deinitAndUnprotect(this: *@This()) void {
this.path.deinitAndUnprotect();
}
pub fn toThreadSafe(this: *@This()) void {
this.path.toThreadSafe();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Lutimes {
const path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("path must be a string or TypedArray", .{});
};
errdefer path.deinit();
const atime = JSC.Node.timeLikeFromJS(ctx, arguments.next() orelse {
return ctx.throwInvalidArguments("atime is required", .{});
}) orelse {
return ctx.throwInvalidArguments("atime must be a number or a Date", .{});
};
arguments.eat();
const mtime = JSC.Node.timeLikeFromJS(ctx, arguments.next() orelse {
return ctx.throwInvalidArguments("mtime is required", .{});
}) orelse {
return ctx.throwInvalidArguments("mtime must be a number or a Date", .{});
};
arguments.eat();
return Lutimes{ .path = path, .atime = atime, .mtime = mtime };
}
};
pub const Chmod = struct {
path: PathLike,
mode: Mode = 0x777,
pub fn deinit(this: @This()) void {
this.path.deinit();
}
pub fn toThreadSafe(this: *@This()) void {
this.path.toThreadSafe();
}
pub fn deinitAndUnprotect(this: *@This()) void {
this.path.deinitAndUnprotect();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Chmod {
const path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("path must be a string or TypedArray", .{});
};
errdefer path.deinit();
const mode: Mode = try JSC.Node.modeFromJS(ctx, arguments.next() orelse {
return ctx.throwInvalidArguments("mode is required", .{});
}) orelse {
return ctx.throwInvalidArguments("mode must be a string or integer", .{});
};
arguments.eat();
return Chmod{ .path = path, .mode = mode };
}
};
pub const FChmod = struct {
fd: FileDescriptor,
mode: Mode = 0x777,
pub fn deinit(_: *const @This()) void {}
pub fn toThreadSafe(_: *const @This()) void {}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!FChmod {
const fd = try JSC.Node.fileDescriptorFromJS(ctx, arguments.next() orelse {
return ctx.throwInvalidArguments("file descriptor is required", .{});
}) orelse {
return ctx.throwInvalidArguments("file descriptor must be a number", .{});
};
arguments.eat();
const mode: Mode = try JSC.Node.modeFromJS(ctx, arguments.next() orelse {
return ctx.throwInvalidArguments("mode is required", .{});
}) orelse {
return ctx.throwInvalidArguments("mode must be a string or integer", .{});
};
arguments.eat();
return FChmod{ .fd = fd, .mode = mode };
}
};
pub const LCHmod = Chmod;
pub const Stat = struct {
path: PathLike,
big_int: bool = false,
throw_if_no_entry: bool = true,
pub fn deinit(this: Stat) void {
this.path.deinit();
}
pub fn deinitAndUnprotect(this: Stat) void {
this.path.deinitAndUnprotect();
}
pub fn toThreadSafe(this: *Stat) void {
this.path.toThreadSafe();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Stat {
const path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("path must be a string or TypedArray", .{});
};
errdefer path.deinit();
var throw_if_no_entry = true;
const big_int = brk: {
if (arguments.next()) |next_val| {
if (next_val.isObject()) {
if (next_val.isCallable(ctx.vm())) break :brk false;
arguments.eat();
if (try next_val.getBooleanStrict(ctx, "throwIfNoEntry")) |throw_if_no_entry_val| {
throw_if_no_entry = throw_if_no_entry_val;
}
if (try next_val.getBooleanStrict(ctx, "bigint")) |big_int| {
break :brk big_int;
}
}
}
break :brk false;
};
return Stat{ .path = path, .big_int = big_int, .throw_if_no_entry = throw_if_no_entry };
}
};
pub const Fstat = struct {
fd: FileDescriptor,
big_int: bool = false,
pub fn deinit(_: @This()) void {}
pub fn toThreadSafe(_: *@This()) void {}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Fstat {
const fd = try JSC.Node.fileDescriptorFromJS(ctx, arguments.next() orelse {
return ctx.throwInvalidArguments("file descriptor is required", .{});
}) orelse {
return ctx.throwInvalidArguments("file descriptor must be a number", .{});
};
const big_int = brk: {
if (arguments.next()) |next_val| {
if (next_val.isObject()) {
if (next_val.isCallable(ctx.vm())) break :brk false;
arguments.eat();
if (try next_val.getBooleanStrict(ctx, "bigint")) |big_int| {
break :brk big_int;
}
}
}
break :brk false;
};
return Fstat{ .fd = fd, .big_int = big_int };
}
};
pub const Lstat = Stat;
pub const Link = struct {
old_path: PathLike,
new_path: PathLike,
pub fn deinit(this: Link) void {
this.old_path.deinit();
this.new_path.deinit();
}
pub fn deinitAndUnprotect(this: *Link) void {
this.old_path.deinitAndUnprotect();
this.new_path.deinitAndUnprotect();
}
pub fn toThreadSafe(this: *Link) void {
this.old_path.toThreadSafe();
this.new_path.toThreadSafe();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Link {
const old_path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("oldPath must be a string or TypedArray", .{});
};
const new_path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("newPath must be a string or TypedArray", .{});
};
return Link{ .old_path = old_path, .new_path = new_path };
}
};
pub const Symlink = struct {
old_path: PathLike,
new_path: PathLike,
link_type: LinkType,
const LinkType = if (!Environment.isWindows)
u0
else
LinkTypeEnum;
const LinkTypeEnum = enum {
file,
dir,
junction,
};
pub fn deinit(this: Symlink) void {
this.old_path.deinit();
this.new_path.deinit();
}
pub fn deinitAndUnprotect(this: Symlink) void {
this.old_path.deinitAndUnprotect();
this.new_path.deinitAndUnprotect();
}
pub fn toThreadSafe(this: *@This()) void {
this.old_path.toThreadSafe();
this.new_path.toThreadSafe();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Symlink {
const old_path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("oldPath must be a string or TypedArray", .{});
};
const new_path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("newPath must be a string or TypedArray", .{});
};
const link_type: LinkType = if (!Environment.isWindows)
0
else link_type: {
if (arguments.next()) |next_val| {
// The type argument is only available on Windows and
// ignored on other platforms. It can be set to 'dir',
// 'file', or 'junction'. If the type argument is not set,
// Node.js will autodetect target type and use 'file' or
// 'dir'. If the target does not exist, 'file' will be used.
// Windows junction points require the destination path to
// be absolute. When using 'junction', the target argument
// will automatically be normalized to absolute path.
if (next_val.isString()) {
arguments.eat();
var str = next_val.toBunString(ctx);
defer str.deref();
if (str.eqlComptime("dir")) break :link_type .dir;
if (str.eqlComptime("file")) break :link_type .file;
if (str.eqlComptime("junction")) break :link_type .junction;
return ctx.throwInvalidArguments("Symlink type must be one of \"dir\", \"file\", or \"junction\". Received \"{}\"", .{str});
}
// not a string. fallthrough to auto detect.
}
var buf: bun.PathBuffer = undefined;
const stat = bun.sys.stat(old_path.sliceZ(&buf));
// if there's an error node defaults to file.
break :link_type if (stat == .result and bun.C.S.ISDIR(@intCast(stat.result.mode))) .dir else .file;
};
return Symlink{
.old_path = old_path,
.new_path = new_path,
.link_type = link_type,
};
}
};
pub const Readlink = struct {
path: PathLike,
encoding: Encoding = Encoding.utf8,
pub fn deinit(this: Readlink) void {
this.path.deinit();
}
pub fn deinitAndUnprotect(this: *Readlink) void {
this.path.deinitAndUnprotect();
}
pub fn toThreadSafe(this: *Readlink) void {
this.path.toThreadSafe();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Readlink {
const path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("path must be a string or TypedArray", .{});
};
errdefer path.deinit();
var encoding = Encoding.utf8;
if (arguments.next()) |val| {
arguments.eat();
switch (val.jsType()) {
JSC.JSValue.JSType.String, JSC.JSValue.JSType.StringObject, JSC.JSValue.JSType.DerivedStringObject => {
encoding = try Encoding.assert(val, ctx, encoding);
},
else => {
if (val.isObject()) {
encoding = try getEncoding(val, ctx, encoding);
}
},
}
}
return Readlink{ .path = path, .encoding = encoding };
}
};
pub const Realpath = struct {
path: PathLike,
encoding: Encoding = Encoding.utf8,
pub fn deinit(this: Realpath) void {
this.path.deinit();
}
pub fn deinitAndUnprotect(this: *Realpath) void {
this.path.deinitAndUnprotect();
}
pub fn toThreadSafe(this: *Realpath) void {
this.path.toThreadSafe();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Realpath {
const path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("path must be a string or TypedArray", .{});
};
errdefer path.deinit();
var encoding = Encoding.utf8;
if (arguments.next()) |val| {
arguments.eat();
switch (val.jsType()) {
JSC.JSValue.JSType.String, JSC.JSValue.JSType.StringObject, JSC.JSValue.JSType.DerivedStringObject => {
encoding = try Encoding.assert(val, ctx, encoding);
},
else => {
if (val.isObject()) {
encoding = try getEncoding(val, ctx, encoding);
}
},
}
}
return Realpath{ .path = path, .encoding = encoding };
}
};
fn getEncoding(object: JSC.JSValue, globalObject: *JSC.JSGlobalObject, default: Encoding) bun.JSError!Encoding {
if (object.fastGet(globalObject, .encoding)) |value| {
return Encoding.assert(value, globalObject, default);
}
return default;
}
pub const Unlink = struct {
path: PathLike,
pub fn deinit(this: Unlink) void {
this.path.deinit();
}
pub fn deinitAndUnprotect(this: *Unlink) void {
this.path.deinitAndUnprotect();
}
pub fn toThreadSafe(this: *Unlink) void {
this.path.toThreadSafe();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Unlink {
const path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("path must be a string or TypedArray", .{});
};
errdefer path.deinit();
return Unlink{
.path = path,
};
}
};
pub const Rm = RmDir;
pub const RmDir = struct {
path: PathLike,
force: bool = false,
max_retries: u32 = 0,
recursive: bool = false,
retry_delay: c_uint = 100,
pub fn deinitAndUnprotect(this: *RmDir) void {
this.path.deinitAndUnprotect();
}
pub fn toThreadSafe(this: *RmDir) void {
this.path.toThreadSafe();
}
pub fn deinit(this: RmDir) void {
this.path.deinit();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!RmDir {
const path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("path must be a string or TypedArray", .{});
};
errdefer path.deinit();
var recursive = false;
var force = false;
if (arguments.next()) |val| {
arguments.eat();
if (val.isObject()) {
if (try val.getBooleanStrict(ctx, "recursive")) |boolean| {
recursive = boolean;
}
if (try val.getBooleanStrict(ctx, "force")) |boolean| {
force = boolean;
}
}
}
return RmDir{
.path = path,
.recursive = recursive,
.force = force,
};
}
};
/// https://github.com/nodejs/node/blob/master/lib/fs.js#L1285
pub const Mkdir = struct {
path: PathLike,
/// Indicates whether parent folders should be created.
/// If a folder was created, the path to the first created folder will be returned.
/// @default false
recursive: bool = false,
/// A file mode. If a string is passed, it is parsed as an octal integer. If not specified
mode: Mode = DefaultMode,
/// If set to true, the return value is never set to a string
always_return_none: bool = false,
pub const DefaultMode = 0o777;
pub fn deinit(this: Mkdir) void {
this.path.deinit();
}
pub fn deinitAndUnprotect(this: *Mkdir) void {
this.path.deinitAndUnprotect();
}
pub fn toThreadSafe(this: *Mkdir) void {
this.path.toThreadSafe();
}
pub fn fromJS(ctx: *JSC.JSGlobalObject, arguments: *ArgumentsSlice) bun.JSError!Mkdir {
const path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("path must be a string or TypedArray", .{});
};
errdefer path.deinit();
var recursive = false;
var mode: Mode = 0o777;
if (arguments.next()) |val| {
arguments.eat();
if (val.isObject()) {
if (try val.getBooleanStrict(ctx, "recursive")) |boolean| {
recursive = boolean;
}
if (try val.get(ctx, "mode")) |mode_| {
mode = try JSC.Node.modeFromJS(ctx, mode_) orelse mode;
}
}
}
return Mkdir{
.path = path,
.recursive = recursive,
.mode = mode,
};
}
};
const MkdirTemp = struct {
prefix: StringOrBuffer = .{ .buffer = .{ .buffer = JSC.ArrayBuffer.empty } },
encoding: Encoding = Encoding.utf8,
pub fn deinit(this: MkdirTemp) void {
this.prefix.deinit();
}
pub fn deinitAndUnprotect(this: *MkdirTemp) void {
this.prefix.deinit();
}
pub fn toThreadSafe(this: *MkdirTemp) void {
this.prefix.toThreadSafe();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!MkdirTemp {
const prefix_value = arguments.next() orelse return MkdirTemp{};
const prefix = StringOrBuffer.fromJS(ctx, bun.default_allocator, prefix_value) orelse {
return ctx.throwInvalidArguments("prefix must be a string or TypedArray", .{});
};
errdefer prefix.deinit();
arguments.eat();
var encoding = Encoding.utf8;
if (arguments.next()) |val| {
arguments.eat();
switch (val.jsType()) {
JSC.JSValue.JSType.String, JSC.JSValue.JSType.StringObject, JSC.JSValue.JSType.DerivedStringObject => {
encoding = try Encoding.assert(val, ctx, encoding);
},
else => {
if (val.isObject()) {
encoding = try getEncoding(val, ctx, encoding);
}
},
}
}
return MkdirTemp{
.prefix = prefix,
.encoding = encoding,
};
}
};
pub const Readdir = struct {
path: PathLike,
encoding: Encoding = Encoding.utf8,
with_file_types: bool = false,
recursive: bool = false,
pub fn deinit(this: Readdir) void {
this.path.deinit();
}
pub fn deinitAndUnprotect(this: Readdir) void {
this.path.deinitAndUnprotect();
}
pub fn toThreadSafe(this: *Readdir) void {
this.path.toThreadSafe();
}
pub fn tag(this: *const Readdir) Return.Readdir.Tag {
return switch (this.encoding) {
.buffer => .buffers,
else => if (this.with_file_types)
.with_file_types
else
.files,
};
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Readdir {
const path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("path must be a string or TypedArray", .{});
};
errdefer path.deinit();
var encoding = Encoding.utf8;
var with_file_types = false;
var recursive = false;
if (arguments.next()) |val| {
arguments.eat();
switch (val.jsType()) {
.String,
.StringObject,
.DerivedStringObject,
=> {
encoding = try Encoding.assert(val, ctx, encoding);
},
else => {
if (val.isObject()) {
encoding = try getEncoding(val, ctx, encoding);
if (try val.getBooleanStrict(ctx, "recursive")) |recursive_| {
recursive = recursive_;
}
if (try val.getBooleanStrict(ctx, "withFileTypes")) |with_file_types_| {
with_file_types = with_file_types_;
}
}
},
}
}
return Readdir{
.path = path,
.encoding = encoding,
.with_file_types = with_file_types,
.recursive = recursive,
};
}
};
pub const Close = struct {
fd: FileDescriptor,
pub fn deinit(_: Close) void {}
pub fn toThreadSafe(_: Close) void {}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Close {
const fd = try JSC.Node.fileDescriptorFromJS(ctx, arguments.next() orelse {
return ctx.throwInvalidArguments("file descriptor is required", .{});
}) orelse {
return ctx.throwInvalidArguments("file descriptor must be a number", .{});
};
return Close{ .fd = fd };
}
};
pub const Open = struct {
path: PathLike,
flags: FileSystemFlags = FileSystemFlags.r,
mode: Mode = default_permission,
pub fn deinit(this: Open) void {
this.path.deinit();
}
pub fn deinitAndUnprotect(this: Open) void {
this.path.deinitAndUnprotect();
}
pub fn toThreadSafe(this: *Open) void {
this.path.toThreadSafe();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Open {
const path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("path must be a string or TypedArray", .{});
};
errdefer path.deinit();
var flags = FileSystemFlags.r;
var mode: Mode = default_permission;
if (arguments.next()) |val| {
arguments.eat();
if (val.isObject()) {
if (try val.getTruthy(ctx, "flags")) |flags_| {
flags = try FileSystemFlags.fromJS(ctx, flags_) orelse flags;
}
if (try val.getTruthy(ctx, "mode")) |mode_| {
mode = try JSC.Node.modeFromJS(ctx, mode_) orelse mode;
}
} else if (val != .zero) {
if (!val.isUndefinedOrNull()) {
// error is handled below
flags = try FileSystemFlags.fromJS(ctx, val) orelse flags;
}
if (arguments.nextEat()) |next| {
mode = try JSC.Node.modeFromJS(ctx, next) orelse mode;
}
}
}
return Open{
.path = path,
.flags = flags,
.mode = mode,
};
}
};
/// Change the file system timestamps of the object referenced by `path`.
///
/// The `atime` and `mtime` arguments follow these rules:
///
/// * Values can be either numbers representing Unix epoch time in seconds,`Date`s, or a numeric string like `'123456789.0'`.
/// * If the value can not be converted to a number, or is `NaN`, `Infinity` or`-Infinity`, an `Error` will be thrown.
/// @since v0.4.2
pub const Utimes = Lutimes;
pub const Futimes = struct {
fd: FileDescriptor,
atime: TimeLike,
mtime: TimeLike,
pub fn deinit(_: Futimes) void {}
pub fn toThreadSafe(self: *const @This()) void {
_ = self;
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Futimes {
const fd = try JSC.Node.fileDescriptorFromJS(ctx, arguments.next() orelse {
return ctx.throwInvalidArguments("file descriptor is required", .{});
}) orelse {
return ctx.throwInvalidArguments("file descriptor must be a number", .{});
};
arguments.eat();
const atime = JSC.Node.timeLikeFromJS(ctx, arguments.next() orelse {
return ctx.throwInvalidArguments("atime is required", .{});
}) orelse {
return ctx.throwInvalidArguments("atime must be a number or a Date", .{});
};
arguments.eat();
const mtime = JSC.Node.timeLikeFromJS(ctx, arguments.next() orelse {
return ctx.throwInvalidArguments("mtime is required", .{});
}) orelse {
return ctx.throwInvalidArguments("mtime must be a number or a Date", .{});
};
arguments.eat();
return Futimes{
.fd = fd,
.atime = atime,
.mtime = mtime,
};
}
};
/// Write `buffer` to the file specified by `fd`. If `buffer` is a normal object, it
/// must have an own `toString` function property.
///
/// `offset` determines the part of the buffer to be written, and `length` is
/// an integer specifying the number of bytes to write.
///
/// `position` refers to the offset from the beginning of the file where this data
/// should be written. If `typeof position !== 'number'`, the data will be written
/// at the current position. See [`pwrite(2)`](http://man7.org/linux/man-pages/man2/pwrite.2.html).
///
/// The callback will be given three arguments `(err, bytesWritten, buffer)` where`bytesWritten` specifies how many _bytes_ were written from `buffer`.
///
/// If this method is invoked as its `util.promisify()` ed version, it returns
/// a promise for an `Object` with `bytesWritten` and `buffer` properties.
///
/// It is unsafe to use `fs.write()` multiple times on the same file without waiting
/// for the callback. For this scenario, {@link createWriteStream} is
/// recommended.
///
/// On Linux, positional writes don't work when the file is opened in append mode.
/// The kernel ignores the position argument and always appends the data to
/// the end of the file.
/// @since v0.0.2
///
pub const Write = struct {
fd: FileDescriptor,
buffer: StringOrBuffer,
// buffer_val: JSC.JSValue = JSC.JSValue.zero,
offset: u64 = 0,
length: u64 = std.math.maxInt(u64),
position: ?ReadPosition = null,
encoding: Encoding = Encoding.buffer,
pub fn deinit(this: *const @This()) void {
this.buffer.deinit();
}
pub fn deinitAndUnprotect(this: *@This()) void {
this.buffer.deinitAndUnprotect();
}
pub fn toThreadSafe(self: *@This()) void {
self.buffer.toThreadSafe();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Write {
const fd = try JSC.Node.fileDescriptorFromJS(ctx, arguments.next() orelse {
return ctx.throwInvalidArguments("file descriptor is required", .{});
}) orelse {
return ctx.throwInvalidArguments("file descriptor must be a number", .{});
};
arguments.eat();
const buffer_value = arguments.next();
const buffer = StringOrBuffer.fromJS(ctx, bun.default_allocator, buffer_value orelse {
return ctx.throwInvalidArguments("data is required", .{});
}) orelse {
return ctx.throwInvalidArgumentTypeValue("buffer", "string or TypedArray", buffer_value.?);
};
if (buffer_value.?.isString() and !buffer_value.?.isStringLiteral()) {
return ctx.throwInvalidArgumentTypeValue("buffer", "string or TypedArray", buffer_value.?);
}
var args = Write{
.fd = fd,
.buffer = buffer,
.encoding = switch (buffer) {
.buffer => Encoding.buffer,
inline else => Encoding.utf8,
},
};
errdefer args.deinit();
arguments.eat();
// TODO: make this faster by passing argument count at comptime
if (arguments.next()) |current_| {
parse: {
var current = current_;
switch (buffer) {
// fs.write(fd, string[, position[, encoding]], callback)
else => {
if (current.isNumber()) {
args.position = current.to(i52);
arguments.eat();
current = arguments.next() orelse break :parse;
}
if (current.isString()) {
args.encoding = try Encoding.assert(current, ctx, args.encoding);
arguments.eat();
}
},
// fs.write(fd, buffer[, offset[, length[, position]]], callback)
.buffer => {
if (!current.isNumber()) {
break :parse;
}
if (!(current.isNumber() or current.isBigInt())) break :parse;
args.offset = current.to(u52);
arguments.eat();
current = arguments.next() orelse break :parse;
if (!(current.isNumber() or current.isBigInt())) break :parse;
args.length = current.to(u52);
arguments.eat();
current = arguments.next() orelse break :parse;
if (!(current.isNumber() or current.isBigInt())) break :parse;
args.position = current.to(i52);
arguments.eat();
},
}
}
}
return args;
}
};
pub const Read = struct {
fd: FileDescriptor,
buffer: Buffer,
offset: u64 = 0,
length: u64 = std.math.maxInt(u64),
position: ?ReadPosition = null,
pub fn deinit(_: Read) void {}
pub fn toThreadSafe(this: Read) void {
this.buffer.buffer.value.protect();
}
pub fn deinitAndUnprotect(this: *Read) void {
this.buffer.buffer.value.unprotect();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Read {
const fd = try JSC.Node.fileDescriptorFromJS(ctx, arguments.next() orelse {
return ctx.throwInvalidArguments("file descriptor is required", .{});
}) orelse {
return ctx.throwInvalidArguments("file descriptor must be a number", .{});
};
arguments.eat();
const buffer_value = arguments.next();
const buffer = Buffer.fromJS(ctx, buffer_value orelse {
return ctx.throwInvalidArguments("buffer is required", .{});
}) orelse {
return ctx.throwInvalidArgumentTypeValue("buffer", "TypedArray", buffer_value.?);
};
arguments.eat();
var args = Read{
.fd = fd,
.buffer = buffer,
};
var defined_length = false;
if (arguments.next()) |current| {
arguments.eat();
if (current.isNumber() or current.isBigInt()) {
args.offset = current.to(u52);
if (arguments.remaining.len < 1) {
return ctx.throwInvalidArguments("length is required", .{});
}
const arg_length = arguments.next().?;
arguments.eat();
defined_length = true;
if (arg_length.isNumber() or arg_length.isBigInt()) {
args.length = arg_length.to(u52);
}
if (arguments.next()) |arg_position| {
arguments.eat();
if (arg_position.isNumber() or arg_position.isBigInt()) {
args.position = @as(ReadPosition, @intCast(arg_position.to(i52)));
}
}
} else if (current.isObject()) {
if (try current.getTruthy(ctx, "offset")) |num| {
if (num.isNumber() or num.isBigInt()) {
args.offset = num.to(u52);
}
}
if (try current.getTruthy(ctx, "length")) |num| {
if (num.isNumber() or num.isBigInt()) {
args.length = num.to(u52);
}
defined_length = true;
}
if (try current.getTruthy(ctx, "position")) |num| {
if (num.isNumber() or num.isBigInt()) {
args.position = num.to(i52);
}
}
}
}
if (defined_length and args.length > 0 and buffer.slice().len == 0) {
var formatter = bun.JSC.ConsoleObject.Formatter{ .globalThis = ctx };
return ctx.ERR_INVALID_ARG_VALUE("The argument 'buffer' is empty and cannot be written. Received {}", .{buffer_value.?.toFmt(&formatter)}).throw();
}
return args;
}
};
/// Asynchronously reads the entire contents of a file.
/// @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
/// If a file descriptor is provided, the underlying file will _not_ be closed automatically.
/// @param options Either the encoding for the result, or an object that contains the encoding and an optional flag.
/// If a flag is not provided, it defaults to `'r'`.
pub const ReadFile = struct {
path: PathOrFileDescriptor,
encoding: Encoding = Encoding.utf8,
offset: JSC.WebCore.Blob.SizeType = 0,
max_size: ?JSC.WebCore.Blob.SizeType = null,
limit_size_for_javascript: bool = false,
flag: FileSystemFlags = FileSystemFlags.r,
pub fn deinit(self: ReadFile) void {
self.path.deinit();
}
pub fn deinitAndUnprotect(self: ReadFile) void {
self.path.deinitAndUnprotect();
}
pub fn toThreadSafe(self: *ReadFile) void {
self.path.toThreadSafe();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!ReadFile {
const path = try PathOrFileDescriptor.fromJS(ctx, arguments, bun.default_allocator) orelse {
return ctx.throwInvalidArguments("path must be a string or a file descriptor", .{});
};
errdefer path.deinit();
var encoding = Encoding.buffer;
var flag = FileSystemFlags.r;
if (arguments.next()) |arg| {
arguments.eat();
if (arg.isString()) {
encoding = try Encoding.assert(arg, ctx, encoding);
} else if (arg.isObject()) {
encoding = try getEncoding(arg, ctx, encoding);
if (try arg.getTruthy(ctx, "flag")) |flag_| {
flag = try FileSystemFlags.fromJS(ctx, flag_) orelse {
return ctx.throwInvalidArguments("Invalid flag", .{});
};
}
}
}
// Note: Signal is not implemented
return ReadFile{
.path = path,
.encoding = encoding,
.flag = flag,
.limit_size_for_javascript = true,
};
}
};
pub const WriteFile = struct {
encoding: Encoding = Encoding.utf8,
flag: FileSystemFlags = FileSystemFlags.w,
mode: Mode = 0o666,
file: PathOrFileDescriptor,
/// Encoded at the time of construction.
data: StringOrBuffer,
dirfd: FileDescriptor,
pub fn deinit(self: WriteFile) void {
self.file.deinit();
self.data.deinit();
}
pub fn toThreadSafe(self: *WriteFile) void {
self.file.toThreadSafe();
self.data.toThreadSafe();
}
pub fn deinitAndUnprotect(self: *WriteFile) void {
self.file.deinitAndUnprotect();
self.data.deinitAndUnprotect();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!WriteFile {
const path = try PathOrFileDescriptor.fromJS(ctx, arguments, bun.default_allocator) orelse {
return ctx.throwInvalidArguments("path must be a string or a file descriptor", .{});
};
errdefer path.deinit();
const data_value = arguments.nextEat() orelse {
return ctx.throwInvalidArguments("data is required", .{});
};
var encoding = Encoding.buffer;
var flag = FileSystemFlags.w;
var mode: Mode = default_permission;
if (data_value.isString()) {
encoding = Encoding.utf8;
}
if (arguments.next()) |arg| {
arguments.eat();
if (arg.isString()) {
encoding = try Encoding.assert(arg, ctx, encoding);
} else if (arg.isObject()) {
encoding = try getEncoding(arg, ctx, encoding);
if (try arg.getTruthy(ctx, "flag")) |flag_| {
flag = try FileSystemFlags.fromJS(ctx, flag_) orelse {
return ctx.throwInvalidArguments("Invalid flag", .{});
};
}
if (try arg.getTruthy(ctx, "mode")) |mode_| {
mode = try JSC.Node.modeFromJS(ctx, mode_) orelse {
return ctx.throwInvalidArguments("Invalid mode", .{});
};
}
}
}
const data = try StringOrBuffer.fromJSWithEncodingMaybeAsync(ctx, bun.default_allocator, data_value, encoding, arguments.will_be_async) orelse {
return ctx.throwInvalidArguments("data must be a string or TypedArray", .{});
};
// Note: Signal is not implemented
return WriteFile{
.file = path,
.encoding = encoding,
.flag = flag,
.mode = mode,
.data = data,
.dirfd = bun.FD.cwd(),
};
}
};
pub const AppendFile = WriteFile;
pub const OpenDir = struct {
path: PathLike,
encoding: Encoding = Encoding.utf8,
/// Number of directory entries that are buffered internally when reading from the directory. Higher values lead to better performance but higher memory usage. Default: 32
buffer_size: c_int = 32,
pub fn deinit(self: OpenDir) void {
self.path.deinit();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!OpenDir {
const path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("path must be a string or TypedArray", .{});
};
errdefer path.deinit();
var encoding = Encoding.buffer;
var buffer_size: c_int = 32;
if (arguments.next()) |arg| {
arguments.eat();
if (arg.isString()) {
encoding = Encoding.assert(arg, ctx, encoding) catch encoding;
} else if (arg.isObject()) {
if (getEncoding(arg, ctx)) |encoding_| {
encoding = encoding_;
}
if (try arg.get(ctx, "bufferSize")) |buffer_size_| {
buffer_size = buffer_size_.toInt32();
if (buffer_size < 0) {
return ctx.throwInvalidArguments("bufferSize must be > 0", .{});
}
}
}
}
return OpenDir{
.path = path,
.encoding = encoding,
.buffer_size = buffer_size,
};
}
};
pub const Exists = struct {
path: ?PathLike,
pub fn deinit(this: Exists) void {
if (this.path) |path| {
path.deinit();
}
}
pub fn toThreadSafe(this: *Exists) void {
if (this.path) |*path| {
path.toThreadSafe();
}
}
pub fn deinitAndUnprotect(this: *Exists) void {
if (this.path) |*path| {
path.deinitAndUnprotect();
}
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Exists {
return Exists{
.path = try PathLike.fromJS(ctx, arguments),
};
}
};
pub const Access = struct {
path: PathLike,
mode: FileSystemFlags = FileSystemFlags.r,
pub fn deinit(this: Access) void {
this.path.deinit();
}
pub fn toThreadSafe(this: *Access) void {
this.path.toThreadSafe();
}
pub fn deinitAndUnprotect(this: *Access) void {
this.path.deinitAndUnprotect();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Access {
const path = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("path must be a string or TypedArray", .{});
};
errdefer path.deinit();
var mode = FileSystemFlags.r;
if (arguments.next()) |arg| {
arguments.eat();
if (arg.isString()) {
mode = try FileSystemFlags.fromJS(ctx, arg) orelse {
return ctx.throwInvalidArguments("Invalid mode", .{});
};
}
}
return Access{
.path = path,
.mode = mode,
};
}
};
pub const FdataSync = struct {
fd: FileDescriptor,
pub fn deinit(_: FdataSync) void {}
pub fn toThreadSafe(self: *const @This()) void {
_ = self;
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!FdataSync {
const fd = try JSC.Node.fileDescriptorFromJS(ctx, arguments.next() orelse {
return ctx.throwInvalidArguments("file descriptor is required", .{});
}) orelse {
return ctx.throwInvalidArguments("file descriptor must be a number", .{});
};
arguments.eat();
return FdataSync{ .fd = fd };
}
};
pub const CopyFile = struct {
src: PathLike,
dest: PathLike,
mode: Constants.Copyfile,
pub fn deinit(this: CopyFile) void {
this.src.deinit();
this.dest.deinit();
}
pub fn toThreadSafe(this: *CopyFile) void {
this.src.toThreadSafe();
this.dest.toThreadSafe();
}
pub fn deinitAndUnprotect(this: *CopyFile) void {
this.src.deinitAndUnprotect();
this.dest.deinitAndUnprotect();
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!CopyFile {
const src = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("src must be a string or TypedArray", .{});
};
errdefer src.deinit();
const dest = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("dest must be a string or TypedArray", .{});
};
errdefer dest.deinit();
var mode: i32 = 0;
if (arguments.next()) |arg| {
arguments.eat();
if (arg.isNumber()) {
mode = arg.coerce(i32, ctx);
}
}
return CopyFile{
.src = src,
.dest = dest,
.mode = @enumFromInt(mode),
};
}
};
pub const Cp = struct {
src: PathLike,
dest: PathLike,
flags: Flags,
const Flags = struct {
mode: Constants.Copyfile,
recursive: bool,
errorOnExist: bool,
force: bool,
deinit_paths: bool = true,
};
fn deinit(this: *Cp) void {
if (this.flags.deinit_paths) {
this.src.deinit();
this.dest.deinit();
}
}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Cp {
const src = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("src must be a string or TypedArray", .{});
};
errdefer src.deinit();
const dest = try PathLike.fromJS(ctx, arguments) orelse {
return ctx.throwInvalidArguments("dest must be a string or TypedArray", .{});
};
errdefer dest.deinit();
var recursive: bool = false;
var errorOnExist: bool = false;
var force: bool = true;
var mode: i32 = 0;
if (arguments.next()) |arg| {
arguments.eat();
recursive = arg.toBoolean();
}
if (arguments.next()) |arg| {
arguments.eat();
errorOnExist = arg.toBoolean();
}
if (arguments.next()) |arg| {
arguments.eat();
force = arg.toBoolean();
}
if (arguments.next()) |arg| {
arguments.eat();
if (arg.isNumber()) {
mode = arg.coerce(i32, ctx);
}
}
return Cp{
.src = src,
.dest = dest,
.flags = .{
.mode = @enumFromInt(mode),
.recursive = recursive,
.errorOnExist = errorOnExist,
.force = force,
},
};
}
};
pub const WriteEv = struct {
fd: FileDescriptor,
buffers: []const ArrayBuffer,
position: ReadPosition,
};
pub const ReadEv = struct {
fd: FileDescriptor,
buffers: []ArrayBuffer,
position: ReadPosition,
};
pub const UnwatchFile = void;
pub const Watch = JSC.Node.FSWatcher.Arguments;
pub const WatchFile = JSC.Node.StatWatcher.Arguments;
pub const Fsync = struct {
fd: FileDescriptor,
pub fn deinit(_: Fsync) void {}
pub fn toThreadSafe(_: *const @This()) void {}
pub fn fromJS(ctx: JSC.C.JSContextRef, arguments: *ArgumentsSlice) bun.JSError!Fsync {
const fd = try JSC.Node.fileDescriptorFromJS(ctx, arguments.next() orelse {
return ctx.throwInvalidArguments("file descriptor is required", .{});
}) orelse {
return ctx.throwInvalidArguments("file descriptor must be a number", .{});
};
arguments.eat();
return Fsync{ .fd = fd };
}
};
};
pub const StatOrNotFound = union(enum) {
stats: Stats,
not_found: void,
pub fn toJS(this: *StatOrNotFound, globalObject: *JSC.JSGlobalObject) JSC.JSValue {
return switch (this.*) {
.stats => this.stats.toJS(globalObject),
.not_found => JSC.JSValue.undefined,
};
}
pub fn toJSNewlyCreated(this: *const StatOrNotFound, globalObject: *JSC.JSGlobalObject) JSC.JSValue {
return switch (this.*) {
.stats => this.stats.toJSNewlyCreated(globalObject),
.not_found => JSC.JSValue.undefined,
};
}
};
pub const StringOrUndefined = union(enum) {
string: bun.String,
none: void,
pub fn toJS(this: *const StringOrUndefined, globalObject: *JSC.JSGlobalObject) JSC.JSValue {
return switch (this.*) {
.string => this.string.toJS(globalObject),
.none => JSC.JSValue.undefined,
};
}
};
const Return = struct {
pub const Access = void;
pub const AppendFile = void;
pub const Close = void;
pub const CopyFile = void;
pub const Cp = void;
pub const Exists = bool;
pub const Fchmod = void;
pub const Chmod = void;
pub const Fchown = void;
pub const Fdatasync = void;
pub const Fstat = Stats;
pub const Rm = void;
pub const Fsync = void;
pub const Ftruncate = void;
pub const Futimes = void;
pub const Lchmod = void;
pub const Lchown = void;
pub const Link = void;
pub const Lstat = StatOrNotFound;
pub const Mkdir = StringOrUndefined;
pub const Mkdtemp = JSC.ZigString;
pub const Open = FDImpl;
pub const WriteFile = void;
pub const Readv = Read;
pub const Read = struct {
bytes_read: u52,
pub fn toJS(this: Read, _: JSC.C.JSContextRef) JSC.JSValue {
return JSC.JSValue.jsNumberFromUint64(this.bytes_read);
}
};
pub const ReadPromise = struct {
bytes_read: u52,
buffer_val: JSC.JSValue = JSC.JSValue.zero,
const fields = .{
.bytesRead = JSC.ZigString.init("bytesRead"),
.buffer = JSC.ZigString.init("buffer"),
};
pub fn toJS(this: *const ReadPromise, ctx: *JSC.JSGlobalObject) JSC.JSValue {
defer if (!this.buffer_val.isEmptyOrUndefinedOrNull())
this.buffer_val.unprotect();
return JSC.JSValue.createObject2(
ctx,
&fields.bytesRead,
&fields.buffer,
JSC.JSValue.jsNumberFromUint64(@as(u52, @intCast(@min(std.math.maxInt(u52), this.bytes_read)))),
this.buffer_val,
);
}
};
pub const WritePromise = struct {
bytes_written: u52,
buffer: StringOrBuffer,
buffer_val: JSC.JSValue = JSC.JSValue.zero,
const fields = .{
.bytesWritten = JSC.ZigString.init("bytesWritten"),
.buffer = JSC.ZigString.init("buffer"),
};
// Excited for the issue that's like "cannot read file bigger than 2 GB"
pub fn toJS(this: *const WritePromise, globalObject: JSC.C.JSContextRef) JSC.C.JSValueRef {
defer if (!this.buffer_val.isEmptyOrUndefinedOrNull())
this.buffer_val.unprotect();
return JSC.JSValue.createObject2(
globalObject,
&fields.bytesWritten,
&fields.buffer,
JSC.JSValue.jsNumberFromUint64(@as(u52, @intCast(@min(std.math.maxInt(u52), this.bytes_written)))),
if (this.buffer == .buffer)
this.buffer_val
else
this.buffer.toJS(globalObject),
);
}
};
pub const Write = struct {
bytes_written: u52,
const fields = .{
.bytesWritten = JSC.ZigString.init("bytesWritten"),
};
// Excited for the issue that's like "cannot read file bigger than 2 GB"
pub fn toJS(this: *const Write, _: *JSC.JSGlobalObject) JSC.JSValue {
return JSC.JSValue.jsNumberFromUint64(this.bytes_written);
}
};
pub const Readdir = union(Tag) {
with_file_types: []Dirent,
buffers: []Buffer,
files: []const bun.String,
pub const Tag = enum {
with_file_types,
buffers,
files,
};
pub fn toJS(this: Readdir, globalObject: *JSC.JSGlobalObject) JSC.JSValue {
switch (this) {
.with_file_types => {
defer bun.default_allocator.free(this.with_file_types);
return JSC.toJS(globalObject, []Dirent, this.with_file_types, .temporary);
},
.buffers => {
defer bun.default_allocator.free(this.buffers);
return JSC.toJS(globalObject, []Buffer, this.buffers, .temporary);
},
.files => {
// automatically freed
return JSC.toJS(globalObject, []const bun.String, this.files, .temporary);
},
}
}
};
pub const ReadFile = StringOrBuffer;
pub const ReadFileWithOptions = union(enum) {
string: string,
transcoded_string: bun.String,
buffer: JSC.Node.Buffer,
null_terminated: [:0]const u8,
};
pub const Readlink = StringOrBuffer;
pub const Realpath = StringOrBuffer;
pub const RealpathNative = Realpath;
pub const Rename = void;
pub const Rmdir = void;
pub const Stat = StatOrNotFound;
pub const Symlink = void;
pub const Truncate = void;
pub const Unlink = void;
pub const UnwatchFile = void;
pub const Watch = JSC.JSValue;
pub const WatchFile = JSC.JSValue;
pub const Utimes = void;
pub const Chown = void;
pub const Lutimes = void;
pub const Writev = Write;
};
/// Bun's implementation of the Node.js "fs" module
/// https://nodejs.org/api/fs.html
/// https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/types/node/fs.d.ts
pub const NodeFS = struct {
/// Buffer to store a temporary file path that might appear in a returned error message.
///
/// We want to avoid allocating a new path buffer for every error message so that JSC can clone + GC it.
/// That means a stack-allocated buffer won't suffice. Instead, we re-use
/// the heap allocated buffer on the NodefS struct
sync_error_buf: bun.PathBuffer = undefined,
vm: ?*JSC.VirtualMachine = null,
pub const ReturnType = Return;
pub fn access(this: *NodeFS, args: Arguments.Access, comptime _: Flavor) Maybe(Return.Access) {
const path = args.path.sliceZ(&this.sync_error_buf);
return Syscall.access(path, @intFromEnum(args.mode));
}
pub fn appendFile(this: *NodeFS, args: Arguments.AppendFile, comptime flavor: Flavor) Maybe(Return.AppendFile) {
_ = flavor;
var data = args.data.slice();
switch (args.file) {
.fd => |fd| {
while (data.len > 0) {
const written = switch (Syscall.write(fd, data)) {
.result => |result| result,
.err => |err| return .{ .err = err },
};
data = data[written..];
}
return Maybe(Return.AppendFile).success;
},
.path => |path_| {
const path = path_.sliceZ(&this.sync_error_buf);
const fd = switch (Syscall.open(path, @intFromEnum(FileSystemFlags.a), 0o666)) {
.result => |result| result,
.err => |err| return .{ .err = err },
};
defer {
_ = Syscall.close(fd);
}
while (data.len > 0) {
const written = switch (Syscall.write(fd, data)) {
.result => |result| result,
.err => |err| return .{ .err = err },
};
data = data[written..];
}
return Maybe(Return.AppendFile).success;
},
}
}
pub fn close(_: *NodeFS, args: Arguments.Close, comptime flavor: Flavor) Maybe(Return.Close) {
_ = flavor;
return if (Syscall.close(args.fd)) |err| .{ .err = err } else Maybe(Return.Close).success;
}
pub fn uv_close(_: *NodeFS, args: Arguments.Close, rc: i64) Maybe(Return.Close) {
if (rc < 0) {
return Maybe(Return.Close){ .err = .{
.errno = @intCast(-rc),
.syscall = .close,
.fd = args.fd,
.from_libuv = true,
} };
}
return Maybe(Return.Close).success;
}
// since we use a 64 KB stack buffer, we should not let this function get inlined
pub noinline fn copyFileUsingReadWriteLoop(src: [:0]const u8, dest: [:0]const u8, src_fd: FileDescriptor, dest_fd: FileDescriptor, stat_size: usize, wrote: *u64) Maybe(Return.CopyFile) {
var stack_buf: [64 * 1024]u8 = undefined;
var buf_to_free: []u8 = &[_]u8{};
var buf: []u8 = &stack_buf;
maybe_allocate_large_temp_buf: {
if (stat_size > stack_buf.len * 16) {
// Don't allocate more than 8 MB at a time
const clamped_size: usize = @min(stat_size, 8 * 1024 * 1024);
const buf_ = bun.default_allocator.alloc(u8, clamped_size) catch break :maybe_allocate_large_temp_buf;
buf = buf_;
buf_to_free = buf_;
}
}
defer {
if (buf_to_free.len > 0) bun.default_allocator.free(buf_to_free);
}
var remain = @as(u64, @intCast(@max(stat_size, 0)));
toplevel: while (remain > 0) {
const amt = switch (Syscall.read(src_fd, buf[0..@min(buf.len, remain)])) {
.result => |result| result,
.err => |err| return Maybe(Return.CopyFile){ .err = if (src.len > 0) err.withPath(src) else err },
};
// 0 == EOF
if (amt == 0) {
break :toplevel;
}
wrote.* += amt;
remain -|= amt;
var slice = buf[0..amt];
while (slice.len > 0) {
const written = switch (Syscall.write(dest_fd, slice)) {
.result => |result| result,
.err => |err| return Maybe(Return.CopyFile){ .err = if (dest.len > 0) err.withPath(dest) else err },
};
if (written == 0) break :toplevel;
slice = slice[written..];
}
} else {
outer: while (true) {
const amt = switch (Syscall.read(src_fd, buf)) {
.result => |result| result,
.err => |err| return Maybe(Return.CopyFile){ .err = if (src.len > 0) err.withPath(src) else err },
};
// we don't know the size
// so we just go forever until we get an EOF
if (amt == 0) {
break;
}
wrote.* += amt;
var slice = buf[0..amt];
while (slice.len > 0) {
const written = switch (Syscall.write(dest_fd, slice)) {
.result => |result| result,
.err => |err| return Maybe(Return.CopyFile){ .err = if (dest.len > 0) err.withPath(dest) else err },
};
slice = slice[written..];
if (written == 0) break :outer;
}
}
}
return Maybe(Return.CopyFile).success;
}
// copy_file_range() is frequently not supported across devices, such as tmpfs.
// This is relevant for `bun install`
// However, sendfile() is supported across devices.
// Only on Linux. There are constraints though. It cannot be used if the file type does not support
pub noinline fn copyFileUsingSendfileOnLinuxWithReadWriteFallback(src: [:0]const u8, dest: [:0]const u8, src_fd: FileDescriptor, dest_fd: FileDescriptor, stat_size: usize, wrote: *u64) Maybe(Return.CopyFile) {
while (true) {
const amt = switch (bun.sys.sendfile(src_fd, dest_fd, std.math.maxInt(i32) - 1)) {
.err => {
return copyFileUsingReadWriteLoop(src, dest, src_fd, dest_fd, stat_size, wrote);
},
.result => |amount| amount,
};
wrote.* += amt;
if (amt == 0) {
break;
}
}
return Maybe(Return.CopyFile).success;
}
/// https://github.com/libuv/libuv/pull/2233
/// https://github.com/pnpm/pnpm/issues/2761
/// https://github.com/libuv/libuv/pull/2578
/// https://github.com/nodejs/node/issues/34624
pub fn copyFile(this: *NodeFS, args: Arguments.CopyFile, comptime flavor: Flavor) Maybe(Return.CopyFile) {
_ = flavor;
const ret = Maybe(Return.CopyFile);
// TODO: do we need to fchown?
if (comptime Environment.isMac) {
var src_buf: bun.PathBuffer = undefined;
var dest_buf: bun.PathBuffer = undefined;
const src = args.src.sliceZ(&src_buf);
const dest = args.dest.sliceZ(&dest_buf);
if (args.mode.isForceClone()) {
// https://www.manpagez.com/man/2/clonefile/
return ret.errnoSysP(C.clonefile(src, dest, 0), .clonefile, src) orelse ret.success;
} else {
const stat_ = switch (Syscall.stat(src)) {
.result => |result| result,
.err => |err| return Maybe(Return.CopyFile){ .err = err.withPath(src) },
};
if (!posix.S.ISREG(stat_.mode)) {
return Maybe(Return.CopyFile){ .err = .{
.errno = @intFromEnum(C.SystemErrno.ENOTSUP),
.syscall = .copyfile,
} };
}
// 64 KB is about the break-even point for clonefile() to be worth it
// at least, on an M1 with an NVME SSD.
if (stat_.size > 128 * 1024) {
if (!args.mode.shouldntOverwrite()) {
// clonefile() will fail if it already exists
_ = Syscall.unlink(dest);
}
if (ret.errnoSysP(C.clonefile(src, dest, 0), .clonefile, src) == null) {
_ = C.chmod(dest, stat_.mode);
return ret.success;
}
} else {
const src_fd = switch (Syscall.open(src, bun.O.RDONLY, 0o644)) {
.result => |result| result,
.err => |err| return .{ .err = err.withPath(args.src.slice()) },
};
defer {
_ = Syscall.close(src_fd);
}
var flags: Mode = bun.O.CREAT | bun.O.WRONLY;
var wrote: usize = 0;
if (args.mode.shouldntOverwrite()) {
flags |= bun.O.EXCL;
}
const dest_fd = switch (Syscall.open(dest, flags, JSC.Node.default_permission)) {
.result => |result| result,
.err => |err| return Maybe(Return.CopyFile){ .err = err.withPath(args.dest.slice()) },
};
defer {
_ = std.c.ftruncate(dest_fd.int(), @as(std.c.off_t, @intCast(@as(u63, @truncate(wrote)))));
_ = C.fchmod(dest_fd.int(), stat_.mode);
_ = Syscall.close(dest_fd);
}
return copyFileUsingReadWriteLoop(src, dest, src_fd, dest_fd, @intCast(@max(stat_.size, 0)), &wrote);
}
}
// we fallback to copyfile() when the file is > 128 KB and clonefile fails
// clonefile() isn't supported on all devices
// nor is it supported across devices
var mode: Mode = C.darwin.COPYFILE_ACL | C.darwin.COPYFILE_DATA;
if (args.mode.shouldntOverwrite()) {
mode |= C.darwin.COPYFILE_EXCL;
}
return ret.errnoSysP(C.copyfile(src, dest, null, mode), .copyfile, src) orelse ret.success;
}
if (comptime Environment.isLinux) {
var src_buf: bun.PathBuffer = undefined;
var dest_buf: bun.PathBuffer = undefined;
const src = args.src.sliceZ(&src_buf);
const dest = args.dest.sliceZ(&dest_buf);
const src_fd = switch (Syscall.open(src, bun.O.RDONLY, 0o644)) {
.result => |result| result,
.err => |err| return .{ .err = err },
};
defer {
_ = Syscall.close(src_fd);
}
const stat_: linux.Stat = switch (Syscall.fstat(src_fd)) {
.result => |result| result,
.err => |err| return Maybe(Return.CopyFile){ .err = err },
};
if (!posix.S.ISREG(stat_.mode)) {
return Maybe(Return.CopyFile){ .err = .{ .errno = @intFromEnum(C.SystemErrno.ENOTSUP), .syscall = .copyfile } };
}
var flags: Mode = bun.O.CREAT | bun.O.WRONLY;
var wrote: usize = 0;
if (args.mode.shouldntOverwrite()) {
flags |= bun.O.EXCL;
}
const dest_fd = switch (Syscall.open(dest, flags, JSC.Node.default_permission)) {
.result => |result| result,
.err => |err| return Maybe(Return.CopyFile){ .err = err },
};
var size: usize = @intCast(@max(stat_.size, 0));
// https://manpages.debian.org/testing/manpages-dev/ioctl_ficlone.2.en.html
if (args.mode.isForceClone()) {
if (ret.errnoSysP(bun.C.linux.ioctl_ficlone(dest_fd, src_fd), .ioctl_ficlone, dest)) |err| {
_ = Syscall.close(dest_fd);
// This is racey, but it's the best we can do
_ = bun.sys.unlink(dest);
return err;
}
_ = C.fchmod(dest_fd.cast(), stat_.mode);
_ = Syscall.close(dest_fd);
return ret.success;
}
// If we know it's a regular file and ioctl_ficlone is available, attempt to use it.
if (posix.S.ISREG(stat_.mode) and bun.can_use_ioctl_ficlone()) {
const rc = bun.C.linux.ioctl_ficlone(dest_fd, src_fd);
if (rc == 0) {
_ = C.fchmod(dest_fd.cast(), stat_.mode);
_ = Syscall.close(dest_fd);
return ret.success;
}
// If this fails for any reason, we say it's disabled
// We don't want to add the system call overhead of running this function on a lot of files that don't support it
bun.disable_ioctl_ficlone();
}
defer {
_ = linux.ftruncate(dest_fd.cast(), @as(i64, @intCast(@as(u63, @truncate(wrote)))));
_ = linux.fchmod(dest_fd.cast(), stat_.mode);
_ = Syscall.close(dest_fd);
}
var off_in_copy = @as(i64, @bitCast(@as(u64, 0)));
var off_out_copy = @as(i64, @bitCast(@as(u64, 0)));
if (!bun.canUseCopyFileRangeSyscall()) {
return copyFileUsingSendfileOnLinuxWithReadWriteFallback(src, dest, src_fd, dest_fd, size, &wrote);
}
if (size == 0) {
// copy until EOF
while (true) {
// Linux Kernel 5.3 or later
// Not supported in gVisor
const written = linux.copy_file_range(src_fd.cast(), &off_in_copy, dest_fd.cast(), &off_out_copy, std.mem.page_size, 0);
if (ret.errnoSysP(written, .copy_file_range, dest)) |err| {
return switch (err.getErrno()) {
.INTR => continue,
inline .XDEV, .NOSYS => |errno| brk: {
if (comptime errno == .NOSYS) {
bun.disableCopyFileRangeSyscall();
}
break :brk copyFileUsingSendfileOnLinuxWithReadWriteFallback(src, dest, src_fd, dest_fd, size, &wrote);
},
else => return err,
};
}
// wrote zero bytes means EOF
if (written == 0) break;
wrote +|= written;
}
} else {
while (size > 0) {
// Linux Kernel 5.3 or later
// Not supported in gVisor
const written = linux.copy_file_range(src_fd.cast(), &off_in_copy, dest_fd.cast(), &off_out_copy, size, 0);
if (ret.errnoSysP(written, .copy_file_range, dest)) |err| {
return switch (err.getErrno()) {
.INTR => continue,
inline .XDEV, .NOSYS => |errno| brk: {
if (comptime errno == .NOSYS) {
bun.disableCopyFileRangeSyscall();
}
break :brk copyFileUsingSendfileOnLinuxWithReadWriteFallback(src, dest, src_fd, dest_fd, size, &wrote);
},
else => return err,
};
}
// wrote zero bytes means EOF
if (written == 0) break;
wrote +|= written;
size -|= written;
}
}
return ret.success;
}
if (comptime Environment.isWindows) {
if (args.mode.isForceClone()) {
return Maybe(Return.CopyFile).todo();
}
var src_buf: bun.WPathBuffer = undefined;
var dest_buf: bun.WPathBuffer = undefined;
const src = strings.toWPathNormalizeAutoExtend(&src_buf, args.src.sliceZ(&this.sync_error_buf));
const dest = strings.toWPathNormalizeAutoExtend(&dest_buf, args.dest.sliceZ(&this.sync_error_buf));
if (windows.CopyFileW(src.ptr, dest.ptr, if (args.mode.shouldntOverwrite()) 1 else 0) == windows.FALSE) {
if (ret.errnoSysP(0, .copyfile, args.src.slice())) |rest| {
return shouldIgnoreEbusy(args.src, args.dest, rest);
}
}
return ret.success;
}
return Maybe(Return.CopyFile).todo();
}
pub fn exists(this: *NodeFS, args: Arguments.Exists, comptime flavor: Flavor) Maybe(Return.Exists) {
_ = flavor;
const Ret = Maybe(Return.Exists);
const path = args.path orelse return Ret{ .result = false };
const slice = path.sliceZ(&this.sync_error_buf);
// Use libuv access on windows
if (Environment.isWindows) {
return .{ .result = Syscall.access(slice, std.posix.F_OK) != .err };
}
// access() may not work correctly on NFS file systems with UID
// mapping enabled, because UID mapping is done on the server and
// hidden from the client, which checks permissions. Similar
// problems can occur to FUSE mounts.
const rc = (system.access(slice, std.posix.F_OK));
return Ret{ .result = rc == 0 };
}
pub fn chown(this: *NodeFS, args: Arguments.Chown, comptime flavor: Flavor) Maybe(Return.Chown) {
_ = flavor;
if (comptime Environment.isWindows) {
return Syscall.chown(args.path.sliceZ(&this.sync_error_buf), args.uid, args.gid);
}
const path = args.path.sliceZ(&this.sync_error_buf);
return Syscall.chown(path, args.uid, args.gid);
}
/// This should almost never be async
pub fn chmod(this: *NodeFS, args: Arguments.Chmod, comptime flavor: Flavor) Maybe(Return.Chmod) {
_ = flavor;
if (comptime Environment.isWindows) {
return Syscall.chmod(args.path.sliceZ(&this.sync_error_buf), args.mode);
}
const path = args.path.sliceZ(&this.sync_error_buf);
return Maybe(Return.Chmod).errnoSysP(C.chmod(path, args.mode), .chmod, path) orelse
Maybe(Return.Chmod).success;
}
/// This should almost never be async
pub fn fchmod(_: *NodeFS, args: Arguments.FChmod, comptime flavor: Flavor) Maybe(Return.Fchmod) {
_ = flavor;
return Syscall.fchmod(args.fd, args.mode);
}
pub fn fchown(_: *NodeFS, args: Arguments.Fchown, comptime flavor: Flavor) Maybe(Return.Fchown) {
_ = flavor;
if (comptime Environment.isWindows) {
return Syscall.fchown(args.fd, args.uid, args.gid);
}
return Maybe(Return.Fchown).errnoSys(C.fchown(args.fd.int(), args.uid, args.gid), .fchown) orelse
Maybe(Return.Fchown).success;
}
pub fn fdatasync(_: *NodeFS, args: Arguments.FdataSync, comptime _: Flavor) Maybe(Return.Fdatasync) {
if (Environment.isWindows) {
return Syscall.fdatasync(args.fd);
}
return Maybe(Return.Fdatasync).errnoSysFd(system.fdatasync(args.fd.int()), .fdatasync, args.fd) orelse Maybe(Return.Fdatasync).success;
}
pub fn fstat(_: *NodeFS, args: Arguments.Fstat, comptime _: Flavor) Maybe(Return.Fstat) {
return switch (Syscall.fstat(args.fd)) {
.result => |result| Maybe(Return.Fstat){ .result = Stats.init(result, false) },
.err => |err| Maybe(Return.Fstat){ .err = err },
};
}
pub fn fsync(_: *NodeFS, args: Arguments.Fsync, comptime _: Flavor) Maybe(Return.Fsync) {
if (Environment.isWindows) {
return Syscall.fsync(args.fd);
}
return Maybe(Return.Fsync).errnoSys(system.fsync(args.fd.int()), .fsync) orelse
Maybe(Return.Fsync).success;
}
pub fn ftruncateSync(args: Arguments.FTruncate) Maybe(Return.Ftruncate) {
return Syscall.ftruncate(args.fd, args.len orelse 0);
}
pub fn ftruncate(_: *NodeFS, args: Arguments.FTruncate, comptime flavor: Flavor) Maybe(Return.Ftruncate) {
_ = flavor;
return ftruncateSync(args);
}
pub fn futimes(_: *NodeFS, args: Arguments.Futimes, comptime _: Flavor) Maybe(Return.Futimes) {
if (comptime Environment.isWindows) {
var req: uv.fs_t = uv.fs_t.uninitialized;
defer req.deinit();
const rc = uv.uv_fs_futime(uv.Loop.get(), &req, bun.uvfdcast(args.fd), args.mtime, args.atime, null);
return if (rc.errno()) |e|
Maybe(Return.Futimes){ .err = .{ .errno = e, .syscall = .futime } }
else
Maybe(Return.Futimes).success;
}
var times = [2]std.posix.timespec{
args.mtime,
args.atime,
};
return if (Maybe(Return.Futimes).errnoSys(system.futimens(args.fd.int(), &times), .futimens)) |err|
err
else
Maybe(Return.Futimes).success;
}
pub fn lchmod(this: *NodeFS, args: Arguments.LCHmod, comptime flavor: Flavor) Maybe(Return.Lchmod) {
_ = flavor;
if (comptime Environment.isWindows) {
return Maybe(Return.Lchmod).todo();
}
const path = args.path.sliceZ(&this.sync_error_buf);
return Maybe(Return.Lchmod).errnoSysP(C.lchmod(path, args.mode), .lchmod, path) orelse
Maybe(Return.Lchmod).success;
}
pub fn lchown(this: *NodeFS, args: Arguments.LChown, comptime flavor: Flavor) Maybe(Return.Lchown) {
_ = flavor;
if (comptime Environment.isWindows) {
return Maybe(Return.Lchown).todo();
}
const path = args.path.sliceZ(&this.sync_error_buf);
return Maybe(Return.Lchown).errnoSysP(C.lchown(path, args.uid, args.gid), .lchown, path) orelse
Maybe(Return.Lchown).success;
}
pub fn link(this: *NodeFS, args: Arguments.Link, comptime _: Flavor) Maybe(Return.Link) {
var new_path_buf: bun.PathBuffer = undefined;
const from = args.old_path.sliceZ(&this.sync_error_buf);
const to = args.new_path.sliceZ(&new_path_buf);
if (Environment.isWindows) {
return Syscall.link(from, to);
}
return Maybe(Return.Link).errnoSysP(system.link(from, to, 0), .link, from) orelse
Maybe(Return.Link).success;
}
pub fn lstat(this: *NodeFS, args: Arguments.Lstat, comptime _: Flavor) Maybe(Return.Lstat) {
return switch (Syscall.lstat(
args.path.sliceZ(
&this.sync_error_buf,
),
)) {
.result => |result| Maybe(Return.Lstat){ .result = .{ .stats = Stats.init(result, args.big_int) } },
.err => |err| brk: {
if (!args.throw_if_no_entry and err.getErrno() == .NOENT) {
return Maybe(Return.Lstat){ .result = .{ .not_found = {} } };
}
break :brk Maybe(Return.Lstat){ .err = err };
},
};
}
pub fn mkdir(this: *NodeFS, args: Arguments.Mkdir, comptime flavor: Flavor) Maybe(Return.Mkdir) {
return if (args.recursive) mkdirRecursive(this, args, flavor) else mkdirNonRecursive(this, args, flavor);
}
// Node doesn't absolute the path so we don't have to either
pub fn mkdirNonRecursive(this: *NodeFS, args: Arguments.Mkdir, comptime flavor: Flavor) Maybe(Return.Mkdir) {
_ = flavor;
const path = args.path.sliceZ(&this.sync_error_buf);
return switch (Syscall.mkdir(path, args.mode)) {
.result => Maybe(Return.Mkdir){ .result = .{ .none = {} } },
.err => |err| Maybe(Return.Mkdir){ .err = err.withPath(path) },
};
}
pub const MkdirDummyVTable = struct {
pub fn onCreateDir(_: @This(), _: bun.OSPathSliceZ) void {
return;
}
};
pub fn mkdirRecursive(this: *NodeFS, args: Arguments.Mkdir, comptime flavor: Flavor) Maybe(Return.Mkdir) {
return mkdirRecursiveImpl(this, args, flavor, MkdirDummyVTable, .{});
}
// TODO: verify this works correctly with unicode codepoints
pub fn mkdirRecursiveImpl(this: *NodeFS, args: Arguments.Mkdir, comptime flavor: Flavor, comptime Ctx: type, ctx: Ctx) Maybe(Return.Mkdir) {
_ = flavor;
var buf: bun.OSPathBuffer = undefined;
const path: bun.OSPathSliceZ = if (Environment.isWindows)
strings.toNTPath(&buf, args.path.slice())
else
args.path.osPath(&buf);
// TODO: remove and make it always a comptime argument
return switch (args.always_return_none) {
inline else => |always_return_none| this.mkdirRecursiveOSPathImpl(Ctx, ctx, path, args.mode, !always_return_none),
};
}
pub fn _isSep(char: bun.OSPathChar) bool {
return if (Environment.isWindows)
char == '/' or char == '\\'
else
char == '/';
}
pub fn mkdirRecursiveOSPath(this: *NodeFS, path: bun.OSPathSliceZ, mode: Mode, comptime return_path: bool) Maybe(Return.Mkdir) {
return mkdirRecursiveOSPathImpl(this, MkdirDummyVTable, .{}, path, mode, return_path);
}
pub fn mkdirRecursiveOSPathImpl(
this: *NodeFS,
comptime Ctx: type,
ctx: Ctx,
path: bun.OSPathSliceZ,
mode: Mode,
comptime return_path: bool,
) Maybe(Return.Mkdir) {
const VTable = struct {
pub fn onCreateDir(c: Ctx, dirpath: bun.OSPathSliceZ) void {
if (Ctx != void) {
c.onCreateDir(dirpath);
}
return;
}
};
const Char = bun.OSPathChar;
const len = @as(u16, @truncate(path.len));
// First, attempt to create the desired directory
// If that fails, then walk back up the path until we have a match
switch (Syscall.mkdirOSPath(path, mode)) {
.err => |err| {
switch (err.getErrno()) {
else => {
return .{ .err = err.withPath(this.osPathIntoSyncErrorBuf(path[0..len])) };
},
.EXIST => {
return .{ .result = .{ .none = {} } };
},
// continue
.NOENT => {
if (len == 0) {
// no path to copy
return .{ .err = err };
}
},
}
},
.result => {
VTable.onCreateDir(ctx, path);
if (!return_path) {
return .{ .result = .{ .none = {} } };
}
return .{
.result = .{ .string = bun.String.createFromOSPath(path) },
};
},
}
var working_mem: *bun.OSPathBuffer = @alignCast(@ptrCast(&this.sync_error_buf));
@memcpy(working_mem[0..len], path[0..len]);
var i: u16 = len - 1;
// iterate backwards until creating the directory works successfully
while (i > 0) : (i -= 1) {
if (_isSep(path[i])) {
working_mem[i] = 0;
const parent: [:0]Char = working_mem[0..i :0];
switch (Syscall.mkdirOSPath(parent, mode)) {
.err => |err| {
working_mem[i] = std.fs.path.sep;
switch (err.getErrno()) {
.EXIST => {
// Handle race condition
break;
},
.NOENT => {
continue;
},
else => return .{ .err = err.withPath(
if (Environment.isWindows)
this.osPathIntoSyncErrorBufOverlap(parent)
else
parent,
) },
}
},
.result => {
VTable.onCreateDir(ctx, parent);
// We found a parent that worked
working_mem[i] = std.fs.path.sep;
break;
},
}
}
}
const first_match: u16 = i;
i += 1;
// after we find one that works, we go forward _after_ the first working directory
while (i < len) : (i += 1) {
if (_isSep(path[i])) {
working_mem[i] = 0;
const parent: [:0]Char = working_mem[0..i :0];
switch (Syscall.mkdirOSPath(parent, mode)) {
.err => |err| {
working_mem[i] = std.fs.path.sep;
switch (err.getErrno()) {
// handle the race condition
.EXIST => {},
// NOENT shouldn't happen here
else => return .{
.err = err.withPath(this.osPathIntoSyncErrorBuf(path)),
},
}
},
.result => {
VTable.onCreateDir(ctx, parent);
working_mem[i] = std.fs.path.sep;
},
}
}
}
working_mem[len] = 0;
// Our final directory will not have a trailing separator
// so we have to create it once again
switch (Syscall.mkdirOSPath(working_mem[0..len :0], mode)) {
.err => |err| {
switch (err.getErrno()) {
// handle the race condition
.EXIST => {},
// NOENT shouldn't happen here
else => return .{
.err = err.withPath(this.osPathIntoSyncErrorBuf(path)),
},
}
},
.result => {},
}
VTable.onCreateDir(ctx, working_mem[0..len :0]);
if (!return_path) {
return .{ .result = .{ .none = {} } };
}
return .{
.result = .{ .string = bun.String.createFromOSPath(working_mem[0..first_match]) },
};
}
pub fn mkdtemp(this: *NodeFS, args: Arguments.MkdirTemp, comptime _: Flavor) Maybe(Return.Mkdtemp) {
var prefix_buf = &this.sync_error_buf;
const prefix_slice = args.prefix.slice();
const len = @min(prefix_slice.len, prefix_buf.len -| 7);
if (len > 0) {
@memcpy(prefix_buf[0..len], prefix_slice[0..len]);
}
prefix_buf[len..][0..6].* = "XXXXXX".*;
prefix_buf[len..][6] = 0;
// The mkdtemp() function returns a pointer to the modified template
// string on success, and NULL on failure, in which case errno is set to
// indicate the error
if (Environment.isWindows) {
var req: uv.fs_t = uv.fs_t.uninitialized;
defer req.deinit();
const rc = uv.uv_fs_mkdtemp(bun.Async.Loop.get(), &req, @ptrCast(prefix_buf.ptr), null);
if (rc.errno()) |errno| {
return .{ .err = .{ .errno = errno, .syscall = .mkdtemp, .path = prefix_buf[0 .. len + 6] } };
}
return .{
.result = JSC.ZigString.dupeForJS(bun.sliceTo(req.path, 0), bun.default_allocator) catch bun.outOfMemory(),
};
}
const rc = C.mkdtemp(prefix_buf);
if (rc) |ptr| {
return .{
.result = JSC.ZigString.dupeForJS(bun.sliceTo(ptr, 0), bun.default_allocator) catch bun.outOfMemory(),
};
}
// bun.C.getErrno(rc) returns SUCCESS if rc is -1 so we call std.c._errno() directly
const errno = @as(std.c.E, @enumFromInt(std.c._errno().*));
return .{
.err = Syscall.Error{
.errno = @as(Syscall.Error.Int, @truncate(@intFromEnum(errno))),
.syscall = .mkdtemp,
},
};
}
pub fn open(this: *NodeFS, args: Arguments.Open, comptime _: Flavor) Maybe(Return.Open) {
const path = if (Environment.isWindows and bun.strings.eqlComptime(args.path.slice(), "/dev/null"))
"\\\\.\\NUL"
else
args.path.sliceZ(&this.sync_error_buf);
return switch (Syscall.open(path, @intFromEnum(args.flags), args.mode)) {
.err => |err| .{
.err = err.withPath(args.path.slice()),
},
.result => |fd| fd: {
break :fd .{ .result = FDImpl.decode(fd) };
},
};
}
pub fn uv_open(this: *NodeFS, args: Arguments.Open, rc: i64) Maybe(Return.Open) {
_ = this;
if (rc < 0) {
return Maybe(Return.Open){ .err = .{
.errno = @intCast(-rc),
.syscall = .open,
.path = args.path.slice(),
.from_libuv = true,
} };
}
return Maybe(Return.Open).initResult(FDImpl.decode(bun.toFD(@as(u32, @intCast(rc)))));
}
pub fn openDir(_: *NodeFS, _: Arguments.OpenDir, comptime _: Flavor) Maybe(Return.OpenDir) {
return Maybe(Return.OpenDir).todo();
}
fn _read(_: *NodeFS, args: Arguments.Read, comptime _: Flavor) Maybe(Return.Read) {
if (Environment.allow_assert) bun.assert(args.position == null);
var buf = args.buffer.slice();
buf = buf[@min(args.offset, buf.len)..];
buf = buf[0..@min(buf.len, args.length)];
return switch (Syscall.read(args.fd, buf)) {
.err => |err| .{
.err = err,
},
.result => |amt| .{
.result = .{
.bytes_read = @as(u52, @truncate(amt)),
},
},
};
}
fn _pread(_: *NodeFS, args: Arguments.Read, comptime flavor: Flavor) Maybe(Return.Read) {
_ = flavor;
var buf = args.buffer.slice();
buf = buf[@min(args.offset, buf.len)..];
buf = buf[0..@min(buf.len, args.length)];
return switch (Syscall.pread(args.fd, buf, args.position.?)) {
.err => |err| .{
.err = err,
},
.result => |amt| .{
.result = .{
.bytes_read = @as(u52, @truncate(amt)),
},
},
};
}
pub fn read(this: *NodeFS, args: Arguments.Read, comptime flavor: Flavor) Maybe(Return.Read) {
const len1 = args.buffer.slice().len;
const len2 = args.length;
if (len1 == 0 or len2 == 0) {
return Maybe(Return.Read).initResult(.{ .bytes_read = 0 });
}
return if (args.position != null)
this._pread(
args,
comptime flavor,
)
else
this._read(
args,
comptime flavor,
);
}
pub fn uv_read(this: *NodeFS, args: Arguments.Read, rc: i64) Maybe(Return.Read) {
_ = this;
if (rc < 0) {
return Maybe(Return.Read){ .err = .{
.errno = @intCast(-rc),
.syscall = .read,
.fd = args.fd,
.from_libuv = true,
} };
}
return Maybe(Return.Read).initResult(.{ .bytes_read = @intCast(rc) });
}
pub fn uv_readv(this: *NodeFS, args: Arguments.Readv, rc: i64) Maybe(Return.Readv) {
_ = this;
if (rc < 0) {
return Maybe(Return.Readv){ .err = .{
.errno = @intCast(-rc),
.syscall = .readv,
.fd = args.fd,
.from_libuv = true,
} };
}
return Maybe(Return.Readv).initResult(.{ .bytes_read = @intCast(rc) });
}
pub fn readv(this: *NodeFS, args: Arguments.Readv, comptime flavor: Flavor) Maybe(Return.Readv) {
return if (args.position != null) _preadv(this, args, flavor) else _readv(this, args, flavor);
}
pub fn writev(this: *NodeFS, args: Arguments.Writev, comptime flavor: Flavor) Maybe(Return.Writev) {
return if (args.position != null) _pwritev(this, args, flavor) else _writev(this, args, flavor);
}
pub fn write(this: *NodeFS, args: Arguments.Write, comptime flavor: Flavor) Maybe(Return.Write) {
return if (args.position != null) _pwrite(this, args, flavor) else _write(this, args, flavor);
}
pub fn uv_write(this: *NodeFS, args: Arguments.Write, rc: i64) Maybe(Return.Write) {
_ = this;
if (rc < 0) {
return Maybe(Return.Write){ .err = .{
.errno = @intCast(-rc),
.syscall = .write,
.fd = args.fd,
.from_libuv = true,
} };
}
return Maybe(Return.Write).initResult(.{ .bytes_written = @intCast(rc) });
}
pub fn uv_writev(this: *NodeFS, args: Arguments.Writev, rc: i64) Maybe(Return.Writev) {
_ = this;
if (rc < 0) {
return Maybe(Return.Writev){ .err = .{
.errno = @intCast(-rc),
.syscall = .writev,
.fd = args.fd,
.from_libuv = true,
} };
}
return Maybe(Return.Writev).initResult(.{ .bytes_written = @intCast(rc) });
}
fn _write(_: *NodeFS, args: Arguments.Write, comptime flavor: Flavor) Maybe(Return.Write) {
_ = flavor;
var buf = args.buffer.slice();
buf = buf[@min(args.offset, buf.len)..];
buf = buf[0..@min(buf.len, args.length)];
return switch (Syscall.write(args.fd, buf)) {
.err => |err| .{
.err = err,
},
.result => |amt| .{
.result = .{
.bytes_written = @as(u52, @truncate(amt)),
},
},
};
}
fn _pwrite(_: *NodeFS, args: Arguments.Write, comptime flavor: Flavor) Maybe(Return.Write) {
_ = flavor;
const position = args.position.?;
var buf = args.buffer.slice();
buf = buf[@min(args.offset, buf.len)..];
buf = buf[0..@min(args.length, buf.len)];
return switch (Syscall.pwrite(args.fd, buf, position)) {
.err => |err| .{
.err = err,
},
.result => |amt| .{ .result = .{
.bytes_written = @as(u52, @truncate(amt)),
} },
};
}
fn _preadv(_: *NodeFS, args: Arguments.Readv, comptime flavor: Flavor) Maybe(Return.Readv) {
_ = flavor;
const position = args.position.?;
return switch (Syscall.preadv(args.fd, args.buffers.buffers.items, position)) {
.err => |err| .{
.err = err,
},
.result => |amt| .{ .result = .{
.bytes_read = @as(u52, @truncate(amt)),
} },
};
}
fn _readv(_: *NodeFS, args: Arguments.Readv, comptime flavor: Flavor) Maybe(Return.Readv) {
_ = flavor;
return switch (Syscall.readv(args.fd, args.buffers.buffers.items)) {
.err => |err| .{
.err = err,
},
.result => |amt| .{ .result = .{
.bytes_read = @as(u52, @truncate(amt)),
} },
};
}
fn _pwritev(_: *NodeFS, args: Arguments.Writev, comptime flavor: Flavor) Maybe(Return.Write) {
_ = flavor;
const position = args.position.?;
return switch (Syscall.pwritev(args.fd, @ptrCast(args.buffers.buffers.items), position)) {
.err => |err| .{
.err = err,
},
.result => |amt| .{ .result = .{
.bytes_written = @as(u52, @truncate(amt)),
} },
};
}
fn _writev(_: *NodeFS, args: Arguments.Writev, comptime flavor: Flavor) Maybe(Return.Write) {
_ = flavor;
return switch (Syscall.writev(args.fd, @ptrCast(args.buffers.buffers.items))) {
.err => |err| .{
.err = err,
},
.result => |amt| .{ .result = .{
.bytes_written = @as(u52, @truncate(amt)),
} },
};
}
pub fn readdir(this: *NodeFS, args: Arguments.Readdir, comptime flavor: Flavor) Maybe(Return.Readdir) {
if (comptime flavor != .sync) {
if (args.recursive) {
@panic("Assertion failure: this code path should never be reached.");
}
}
return switch (args.recursive) {
inline else => |recursive| switch (args.tag()) {
.buffers => _readdir(&this.sync_error_buf, args, Buffer, recursive, flavor),
.with_file_types => _readdir(&this.sync_error_buf, args, Dirent, recursive, flavor),
.files => _readdir(&this.sync_error_buf, args, bun.String, recursive, flavor),
},
};
}
fn readdirWithEntries(
args: Arguments.Readdir,
fd: bun.FileDescriptor,
basename: [:0]const u8,
comptime ExpectedType: type,
entries: *std.ArrayList(ExpectedType),
) Maybe(void) {
const dir = fd.asDir();
const is_u16 = comptime Environment.isWindows and (ExpectedType == bun.String or ExpectedType == Dirent);
var dirent_path: bun.String = bun.String.dead;
defer {
dirent_path.deref();
}
var iterator = DirIterator.iterate(dir, comptime if (is_u16) .u16 else .u8);
var entry = iterator.next();
while (switch (entry) {
.err => |err| {
for (entries.items) |*item| {
switch (ExpectedType) {
Dirent => {
item.deref();
},
Buffer => {
item.destroy();
},
bun.String => {
item.deref();
},
else => @compileError("unreachable"),
}
}
entries.deinit();
return .{
.err = err.withPath(args.path.slice()),
};
},
.result => |ent| ent,
}) |current| : (entry = iterator.next()) {
if (ExpectedType == Dirent) {
if (dirent_path.isEmpty()) {
dirent_path = bun.String.createUTF8(basename);
}
}
if (comptime !is_u16) {
const utf8_name = current.name.slice();
switch (ExpectedType) {
Dirent => {
dirent_path.ref();
entries.append(.{
.name = bun.String.createUTF8(utf8_name),
.path = dirent_path,
.kind = current.kind,
}) catch bun.outOfMemory();
},
Buffer => {
entries.append(Buffer.fromString(utf8_name, bun.default_allocator) catch bun.outOfMemory()) catch bun.outOfMemory();
},
bun.String => {
entries.append(bun.String.createUTF8(utf8_name)) catch bun.outOfMemory();
},
else => @compileError("unreachable"),
}
} else {
const utf16_name = current.name.slice();
switch (ExpectedType) {
Dirent => {
dirent_path.ref();
entries.append(.{
.name = bun.String.createUTF16(utf16_name),
.path = dirent_path,
.kind = current.kind,
}) catch bun.outOfMemory();
},
bun.String => {
entries.append(bun.String.createUTF16(utf16_name)) catch bun.outOfMemory();
},
else => @compileError("unreachable"),
}
}
}
return Maybe(void).success;
}
pub fn readdirWithEntriesRecursiveAsync(
buf: *bun.PathBuffer,
args: Arguments.Readdir,
async_task: *AsyncReaddirRecursiveTask,
basename: [:0]const u8,
comptime ExpectedType: type,
entries: *std.ArrayList(ExpectedType),
comptime is_root: bool,
) Maybe(void) {
const root_basename = async_task.root_path.slice();
const flags = bun.O.DIRECTORY | bun.O.RDONLY;
const atfd = if (comptime is_root) bun.FD.cwd() else async_task.root_fd;
const fd = switch (switch (Environment.os) {
else => Syscall.openat(atfd, basename, flags, 0),
// windows bun.sys.open does not pass iterable=true,
.windows => bun.sys.openDirAtWindowsA(atfd, basename, .{ .no_follow = true, .iterable = true, .read_only = true }),
}) {
.err => |err| {
if (comptime !is_root) {
switch (err.getErrno()) {
// These things can happen and there's nothing we can do about it.
//
// This is different than what Node does, at the time of writing.
// Node doesn't gracefully handle errors like these. It fails the entire operation.
.NOENT, .NOTDIR, .PERM => {
return Maybe(void).success;
},
else => {},
}
const path_parts = [_]string{ root_basename, basename };
return .{
.err = err.withPath(bun.path.joinZBuf(buf, &path_parts, .auto)),
};
}
return .{
.err = err.withPath(args.path.slice()),
};
},
.result => |fd_| fd_,
};
if (comptime is_root) {
async_task.root_fd = fd;
}
defer {
if (comptime !is_root) {
_ = Syscall.close(fd);
}
}
var iterator = DirIterator.iterate(fd.asDir(), .u8);
var entry = iterator.next();
var dirent_path_prev: bun.String = bun.String.empty;
defer {
dirent_path_prev.deref();
}
while (switch (entry) {
.err => |err| {
if (comptime !is_root) {
const path_parts = [_]string{ root_basename, basename };
return .{
.err = err.withPath(bun.path.joinZBuf(buf, &path_parts, .auto)),
};
}
return .{
.err = err.withPath(args.path.slice()),
};
},
.result => |ent| ent,
}) |current| : (entry = iterator.next()) {
const utf8_name = current.name.slice();
const name_to_copy: [:0]const u8 = brk: {
if (async_task.root_path.sliceAssumeZ().ptr == basename.ptr) {
break :brk @ptrCast(utf8_name);
}
const path_parts = [_]string{ basename, utf8_name };
break :brk bun.path.joinZBuf(buf, &path_parts, .auto);
};
enqueue: {
switch (current.kind) {
// a symlink might be a directory or might not be
// if it's not a directory, the task will fail at that point.
.sym_link,
// we know for sure it's a directory
.directory,
=> {
// if the name is too long, we can't enqueue it regardless
// the operating system would just return ENAMETOOLONG
//
// Technically, we could work around that due to the
// usage of openat, but then we risk leaving too many
// file descriptors open.
if (current.name.len + 1 + name_to_copy.len > bun.MAX_PATH_BYTES) break :enqueue;
async_task.enqueue(name_to_copy);
},
else => {},
}
}
switch (comptime ExpectedType) {
Dirent => {
const path_u8 = bun.path.dirname(bun.path.join(&[_]string{ root_basename, name_to_copy }, .auto), .auto);
if (dirent_path_prev.isEmpty() or !bun.strings.eql(dirent_path_prev.byteSlice(), path_u8)) {
dirent_path_prev.deref();
dirent_path_prev = bun.String.createUTF8(path_u8);
}
dirent_path_prev.ref();
entries.append(.{
.name = bun.String.createUTF8(utf8_name),
.path = dirent_path_prev,
.kind = current.kind,
}) catch bun.outOfMemory();
},
Buffer => {
entries.append(Buffer.fromString(name_to_copy, bun.default_allocator) catch bun.outOfMemory()) catch bun.outOfMemory();
},
bun.String => {
entries.append(bun.String.createUTF8(name_to_copy)) catch bun.outOfMemory();
},
else => bun.outOfMemory(),
}
}
return Maybe(void).success;
}
fn readdirWithEntriesRecursiveSync(
buf: *bun.PathBuffer,
args: Arguments.Readdir,
root_basename: [:0]const u8,
comptime ExpectedType: type,
entries: *std.ArrayList(ExpectedType),
) Maybe(void) {
var iterator_stack = std.heap.stackFallback(128, bun.default_allocator);
var stack = std.fifo.LinearFifo([:0]const u8, .{ .Dynamic = {} }).init(iterator_stack.get());
var basename_stack = std.heap.stackFallback(8192 * 2, bun.default_allocator);
const basename_allocator = basename_stack.get();
defer {
while (stack.readItem()) |name| {
basename_allocator.free(name);
}
stack.deinit();
}
stack.writeItem(root_basename) catch unreachable;
var root_fd: bun.FileDescriptor = bun.invalid_fd;
defer {
// all other paths are relative to the root directory
// so we can only close it once we're 100% done
if (root_fd != bun.invalid_fd) {
_ = Syscall.close(root_fd);
}
}
while (stack.readItem()) |basename| {
defer {
if (root_basename.ptr != basename.ptr) {
basename_allocator.free(basename);
}
}
const flags = bun.O.DIRECTORY | bun.O.RDONLY;
const fd = switch (Syscall.openat(if (root_fd == bun.invalid_fd) bun.FD.cwd() else root_fd, basename, flags, 0)) {
.err => |err| {
if (root_fd == bun.invalid_fd) {
return .{
.err = err.withPath(args.path.slice()),
};
}
switch (err.getErrno()) {
// These things can happen and there's nothing we can do about it.
//
// This is different than what Node does, at the time of writing.
// Node doesn't gracefully handle errors like these. It fails the entire operation.
.NOENT, .NOTDIR, .PERM => continue,
else => {
const path_parts = [_]string{ args.path.slice(), basename };
return .{
.err = err.withPath(bun.default_allocator.dupe(u8, bun.path.joinZBuf(buf, &path_parts, .auto)) catch ""),
};
},
}
},
.result => |fd_| fd_,
};
if (root_fd == bun.invalid_fd) {
root_fd = fd;
}
defer {
if (fd != root_fd) {
_ = Syscall.close(fd);
}
}
var iterator = DirIterator.iterate(fd.asDir(), .u8);
var entry = iterator.next();
var dirent_path_prev: bun.String = bun.String.dead;
defer {
dirent_path_prev.deref();
}
while (switch (entry) {
.err => |err| {
return .{
.err = err.withPath(args.path.slice()),
};
},
.result => |ent| ent,
}) |current| : (entry = iterator.next()) {
const utf8_name = current.name.slice();
const name_to_copy = brk: {
if (root_basename.ptr == basename.ptr) {
break :brk utf8_name;
}
const path_parts = [_]string{ basename, utf8_name };
break :brk bun.path.joinZBuf(buf, &path_parts, .auto);
};
enqueue: {
switch (current.kind) {
// a symlink might be a directory or might not be
// if it's not a directory, the task will fail at that point.
.sym_link,
// we know for sure it's a directory
.directory,
=> {
if (current.name.len + 1 + name_to_copy.len > bun.MAX_PATH_BYTES) break :enqueue;
stack.writeItem(basename_allocator.dupeZ(u8, name_to_copy) catch break :enqueue) catch break :enqueue;
},
else => {},
}
}
switch (comptime ExpectedType) {
Dirent => {
const path_u8 = bun.path.dirname(bun.path.join(&[_]string{ root_basename, name_to_copy }, .auto), .auto);
if (dirent_path_prev.isEmpty() or !bun.strings.eql(dirent_path_prev.byteSlice(), path_u8)) {
dirent_path_prev.deref();
dirent_path_prev = bun.String.createUTF8(path_u8);
}
dirent_path_prev.ref();
entries.append(.{
.name = bun.String.createUTF8(utf8_name),
.path = dirent_path_prev,
.kind = current.kind,
}) catch bun.outOfMemory();
},
Buffer => {
entries.append(Buffer.fromString(name_to_copy, bun.default_allocator) catch bun.outOfMemory()) catch bun.outOfMemory();
},
bun.String => {
entries.append(bun.String.createUTF8(name_to_copy)) catch bun.outOfMemory();
},
else => @compileError("Impossible"),
}
}
}
return Maybe(void).success;
}
fn shouldThrowOutOfMemoryEarlyForJavaScript(encoding: Encoding, size: usize, syscall: Syscall.Tag) ?Syscall.Error {
// Strings & typed arrays max out at 4.7 GB.
// But, it's **string length**
// So you can load an 8 GB hex string, for example, it should be fine.
const adjusted_size = switch (encoding) {
.utf16le, .ucs2, .utf8 => size / 4 -| 1,
.hex => size / 2 -| 1,
.base64, .base64url => size / 3 -| 1,
.ascii, .latin1, .buffer => size,
};
if (
// Typed arrays in JavaScript are limited to 4.7 GB.
adjusted_size > JSC.synthetic_allocation_limit or
// If they do not have enough memory to open the file and they're on Linux, let's throw an error instead of dealing with the OOM killer.
(Environment.isLinux and size >= bun.getTotalMemorySize()))
{
return Syscall.Error.fromCode(.NOMEM, syscall);
}
return null;
}
fn _readdir(
buf: *bun.PathBuffer,
args: Arguments.Readdir,
comptime ExpectedType: type,
comptime recursive: bool,
comptime flavor: Flavor,
) Maybe(Return.Readdir) {
const file_type = switch (ExpectedType) {
Dirent => "with_file_types",
bun.String => "files",
Buffer => "buffers",
else => @compileError("unreachable"),
};
const path = args.path.sliceZ(buf);
if (comptime recursive and flavor == .sync) {
var buf_to_pass: bun.PathBuffer = undefined;
var entries = std.ArrayList(ExpectedType).init(bun.default_allocator);
return switch (readdirWithEntriesRecursiveSync(&buf_to_pass, args, path, ExpectedType, &entries)) {
.err => |err| {
for (entries.items) |*result| {
switch (ExpectedType) {
Dirent => {
result.name.deref();
},
Buffer => {
result.destroy();
},
bun.String => {
result.deref();
},
else => @compileError("unreachable"),
}
}
entries.deinit();
return .{
.err = err,
};
},
.result => .{ .result = @unionInit(Return.Readdir, file_type, entries.items) },
};
}
if (comptime recursive) {
@panic("This code path should never be reached. It should only go through readdirWithEntriesRecursiveAsync.");
}
const flags = bun.O.DIRECTORY | bun.O.RDONLY;
const fd = switch (switch (Environment.os) {
else => Syscall.open(path, flags, 0),
// windows bun.sys.open does not pass iterable=true,
.windows => bun.sys.openDirAtWindowsA(bun.FD.cwd(), path, .{ .iterable = true, .read_only = true }),
}) {
.err => |err| return .{
.err = err.withPath(args.path.slice()),
},
.result => |fd_| fd_,
};
defer _ = Syscall.close(fd);
var entries = std.ArrayList(ExpectedType).init(bun.default_allocator);
return switch (readdirWithEntries(args, fd, path, ExpectedType, &entries)) {
.err => |err| return .{
.err = err,
},
.result => .{ .result = @unionInit(Return.Readdir, file_type, entries.items) },
};
}
pub const StringType = enum {
default,
null_terminated,
};
pub fn readFile(this: *NodeFS, args: Arguments.ReadFile, comptime flavor: Flavor) Maybe(Return.ReadFile) {
const ret = readFileWithOptions(this, args, flavor, .default);
return switch (ret) {
.err => .{ .err = ret.err },
.result => switch (ret.result) {
.buffer => .{
.result = .{
.buffer = ret.result.buffer,
},
},
.transcoded_string => |str| {
if (str.tag == .Dead) {
return .{ .err = Syscall.Error.fromCode(.NOMEM, .read).withPathLike(args.path) };
}
return .{
.result = .{
.string = .{
.underlying = str,
},
},
};
},
.string => brk: {
const str = bun.SliceWithUnderlyingString.transcodeFromOwnedSlice(bun.libpas_allocator, @constCast(ret.result.string), args.encoding);
if (str.underlying.tag == .Dead and str.utf8.len == 0) {
return .{ .err = Syscall.Error.fromCode(.NOMEM, .read).withPathLike(args.path) };
}
break :brk .{ .result = .{ .string = str } };
},
else => unreachable,
},
};
}
pub fn readFileWithOptions(this: *NodeFS, args: Arguments.ReadFile, comptime flavor: Flavor, comptime string_type: StringType) Maybe(Return.ReadFileWithOptions) {
var path: [:0]const u8 = undefined;
const fd_maybe_windows: FileDescriptor = switch (args.path) {
.path => brk: {
path = args.path.path.sliceZ(&this.sync_error_buf);
if (this.vm) |vm| {
if (vm.standalone_module_graph) |graph| {
if (graph.find(path)) |file| {
if (args.encoding == .buffer) {
return .{
.result = .{
.buffer = Buffer.fromBytes(
bun.default_allocator.dupe(u8, file.contents) catch bun.outOfMemory(),
bun.default_allocator,
.Uint8Array,
),
},
};
} else if (comptime string_type == .default)
return .{
.result = .{
.string = bun.default_allocator.dupe(u8, file.contents) catch bun.outOfMemory(),
},
}
else
return .{
.result = .{
.null_terminated = bun.default_allocator.dupeZ(u8, file.contents) catch bun.outOfMemory(),
},
};
}
}
}
break :brk switch (bun.sys.open(
path,
@intFromEnum(args.flag) | bun.O.NOCTTY,
default_permission,
)) {
.err => |err| return .{
.err = err.withPath(if (args.path == .path) args.path.path.slice() else ""),
},
.result => |fd| fd,
};
},
.fd => |fd| fd,
};
const fd = bun.toLibUVOwnedFD(fd_maybe_windows) catch {
if (args.path == .path)
_ = Syscall.close(fd_maybe_windows);
return .{
.err = .{
.errno = @intFromEnum(posix.E.MFILE),
.syscall = .open,
},
};
};
defer {
if (args.path == .path)
_ = Syscall.close(fd);
}
// Only used in DOMFormData
if (args.offset > 0) {
_ = Syscall.setFileOffset(fd, args.offset);
}
var did_succeed = false;
var total: usize = 0;
var async_stack_buffer: [if (flavor == .sync) 0 else 256 * 1024]u8 = undefined;
// --- Optimization: attempt to read up to 256 KB before calling stat()
// If we manage to read the entire file, we don't need to call stat() at all.
// This will make it slightly slower to read e.g. 512 KB files, but usually the OS won't return a full 512 KB in one read anyway.
const temporary_read_buffer_before_stat_call = brk: {
const temporary_read_buffer = temporary_read_buffer: {
var temporary_read_buffer: []u8 = &async_stack_buffer;
if (comptime flavor == .sync) {
if (this.vm) |vm| {
temporary_read_buffer = vm.rareData().pipeReadBuffer();
}
}
var available = temporary_read_buffer;
while (available.len > 0) {
switch (Syscall.read(fd, available)) {
.err => |err| return .{
.err = err,
},
.result => |amt| {
if (amt == 0) {
did_succeed = true;
break;
}
total += amt;
available = available[amt..];
},
}
}
break :temporary_read_buffer temporary_read_buffer[0..total];
};
if (did_succeed) {
switch (args.encoding) {
.buffer => {
if (comptime flavor == .sync and string_type == .default) {
if (this.vm) |vm| {
// Attempt to create the buffer in JSC's heap.
// This avoids creating a WastefulTypedArray.
const array_buffer = JSC.ArrayBuffer.createBuffer(vm.global, temporary_read_buffer);
array_buffer.ensureStillAlive();
return .{
.result = .{
.buffer = JSC.MarkedArrayBuffer{
.buffer = array_buffer.asArrayBuffer(vm.global) orelse {
// This case shouldn't really happen.
return .{
.err = Syscall.Error.fromCode(.NOMEM, .read).withPathLike(args.path),
};
},
},
},
};
}
}
return .{
.result = .{
.buffer = Buffer.fromBytes(
bun.libpas_allocator.dupe(u8, temporary_read_buffer) catch return .{
.err = Syscall.Error.fromCode(.NOMEM, .read).withPathLike(args.path),
},
bun.libpas_allocator,
.Uint8Array,
),
},
};
},
else => {
if (comptime string_type == .default) {
return .{
.result = .{
.transcoded_string = JSC.WebCore.Encoder.toWTFString(temporary_read_buffer, args.encoding),
},
};
} else {
return .{
.result = .{
.null_terminated = bun.default_allocator.dupeZ(u8, temporary_read_buffer) catch return .{
.err = Syscall.Error.fromCode(.NOMEM, .read).withPathLike(args.path),
},
},
};
}
},
}
}
break :brk temporary_read_buffer;
};
// ----------------------------
const stat_ = switch (Syscall.fstat(fd)) {
.err => |err| return .{
.err = err,
},
.result => |stat_| stat_,
};
// For certain files, the size might be 0 but the file might still have contents.
// https://github.com/oven-sh/bun/issues/1220
const max_size = args.max_size orelse std.math.maxInt(JSC.WebCore.Blob.SizeType);
const has_max_size = args.max_size != null;
const size = @as(
u64,
@max(
@min(
stat_.size,
// Only used in DOMFormData
max_size,
),
@as(i64, @intCast(total)),
0,
),
) + @intFromBool(comptime string_type == .null_terminated);
if (args.limit_size_for_javascript and
// assume that anything more than 40 bits is not trustworthy.
(size < std.math.maxInt(u40)))
{
if (shouldThrowOutOfMemoryEarlyForJavaScript(args.encoding, size, .read)) |err| {
return .{ .err = err.withPathLike(args.path) };
}
}
var buf = std.ArrayList(u8).init(bun.libpas_allocator);
defer if (!did_succeed) buf.clearAndFree();
buf.ensureTotalCapacityPrecise(
@min(
@max(temporary_read_buffer_before_stat_call.len, size) + 16,
max_size,
1024 * 1024 * 1024 * 8,
),
) catch return .{
.err = Syscall.Error.fromCode(.NOMEM, .read).withPathLike(args.path),
};
if (temporary_read_buffer_before_stat_call.len > 0) {
buf.appendSlice(temporary_read_buffer_before_stat_call) catch return .{
.err = Syscall.Error.fromCode(.NOMEM, .read).withPathLike(args.path),
};
}
buf.expandToCapacity();
while (total < size) {
switch (Syscall.read(fd, buf.items.ptr[total..@min(buf.capacity, max_size)])) {
.err => |err| return .{
.err = err,
},
.result => |amt| {
total += amt;
if (args.limit_size_for_javascript) {
if (shouldThrowOutOfMemoryEarlyForJavaScript(args.encoding, total, .read)) |err| {
return .{
.err = err.withPathLike(args.path),
};
}
}
// There are cases where stat()'s size is wrong or out of date
if (total > size and amt != 0 and !has_max_size) {
buf.items.len = total;
buf.ensureUnusedCapacity(8192) catch {
return .{ .err = Syscall.Error.fromCode(.NOMEM, .read).withPathLike(args.path) };
};
continue;
}
if (amt == 0) {
did_succeed = true;
break;
}
},
}
} else {
while (true) {
switch (Syscall.read(fd, buf.items.ptr[total..@min(buf.capacity, max_size)])) {
.err => |err| return .{
.err = err,
},
.result => |amt| {
total += amt;
if (args.limit_size_for_javascript) {
if (shouldThrowOutOfMemoryEarlyForJavaScript(args.encoding, total, .read)) |err| {
return .{ .err = err.withPathLike(args.path) };
}
}
if (total > size and amt != 0 and !has_max_size) {
buf.items.len = total;
buf.ensureUnusedCapacity(8192) catch {
return .{ .err = Syscall.Error.fromCode(.NOMEM, .read).withPathLike(args.path) };
};
continue;
}
if (amt == 0) {
did_succeed = true;
break;
}
},
}
}
}
buf.items.len = if (comptime string_type == .null_terminated) total + 1 else total;
if (total == 0) {
buf.clearAndFree();
return switch (args.encoding) {
.buffer => .{
.result = .{
.buffer = Buffer.empty,
},
},
else => brk: {
if (comptime string_type == .default) {
break :brk .{
.result = .{
.string = "",
},
};
} else {
break :brk .{
.result = .{
.null_terminated = "",
},
};
}
},
};
}
return switch (args.encoding) {
.buffer => .{
.result = .{
.buffer = Buffer.fromBytes(buf.items, bun.libpas_allocator, .Uint8Array),
},
},
else => brk: {
if (comptime string_type == .default) {
break :brk .{
.result = .{
.string = buf.items,
},
};
} else {
break :brk .{
.result = .{
.null_terminated = buf.toOwnedSliceSentinel(0) catch return .{
// Since we are expecting a null-terminated string, we can't just ignore the resize failure.
.err = Syscall.Error.fromCode(.NOMEM, .read).withPathLike(args.path),
},
},
};
}
},
};
}
pub fn writeFileWithPathBuffer(pathbuf: *bun.PathBuffer, args: Arguments.WriteFile) Maybe(Return.WriteFile) {
const fd = switch (args.file) {
.path => brk: {
const path = args.file.path.sliceZWithForceCopy(pathbuf, true);
const open_result = Syscall.openat(
args.dirfd,
path,
@intFromEnum(args.flag) | bun.O.NOCTTY,
args.mode,
);
break :brk switch (open_result) {
.err => |err| return .{
.err = err.withPath(path),
},
.result => |fd| fd,
};
},
.fd => |fd| fd,
};
defer {
if (args.file == .path)
_ = bun.sys.close(fd);
}
var buf = args.data.slice();
var written: usize = 0;
// Attempt to pre-allocate large files
if (Environment.isLinux) {
preallocate: {
// Worthwhile after 6 MB at least on ext4 linux
if (buf.len >= bun.C.preallocate_length) {
const offset: usize = if (args.file == .path)
// on mac, it's relatively positioned
0
else brk: {
// on linux, it's absolutely positione
switch (Syscall.lseek(
fd,
@as(std.posix.off_t, @intCast(0)),
std.os.linux.SEEK.CUR,
)) {
.err => break :preallocate,
.result => |pos| break :brk @as(usize, @intCast(pos)),
}
};
bun.C.preallocate_file(
fd.cast(),
@as(std.posix.off_t, @intCast(offset)),
@as(std.posix.off_t, @intCast(buf.len)),
) catch {};
}
}
}
while (buf.len > 0) {
switch (bun.sys.write(fd, buf)) {
.err => |err| return .{
.err = err,
},
.result => |amt| {
buf = buf[amt..];
written += amt;
if (amt == 0) {
break;
}
},
}
}
// https://github.com/oven-sh/bun/issues/2931
// https://github.com/oven-sh/bun/issues/10222
// Only truncate if we're not appending and writing to a path
if ((@intFromEnum(args.flag) & bun.O.APPEND) == 0 and args.file != .fd) {
// If this errors, we silently ignore it.
// Not all files are seekable (and thus, not all files can be truncated).
if (Environment.isWindows) {
_ = std.os.windows.kernel32.SetEndOfFile(fd.cast());
} else {
_ = ftruncateSync(.{ .fd = fd, .len = @as(JSC.WebCore.Blob.SizeType, @truncate(written)) });
}
}
return Maybe(Return.WriteFile).success;
}
pub fn writeFile(this: *NodeFS, args: Arguments.WriteFile, comptime _: Flavor) Maybe(Return.WriteFile) {
return writeFileWithPathBuffer(&this.sync_error_buf, args);
}
pub fn readlink(this: *NodeFS, args: Arguments.Readlink, comptime _: Flavor) Maybe(Return.Readlink) {
var outbuf: bun.PathBuffer = undefined;
const inbuf = &this.sync_error_buf;
const path = args.path.sliceZ(inbuf);
const link_path = switch (Syscall.readlink(path, &outbuf)) {
.err => |err| return .{ .err = err.withPath(args.path.slice()) },
.result => |result| result,
};
return .{
.result = switch (args.encoding) {
.buffer => .{
.buffer = Buffer.fromString(link_path, bun.default_allocator) catch unreachable,
},
else => if (args.path == .slice_with_underlying_string and
strings.eqlLong(args.path.slice_with_underlying_string.slice(), link_path, true))
.{
.string = args.path.slice_with_underlying_string.dupeRef(),
}
else
.{
.string = .{ .utf8 = .{}, .underlying = bun.String.createUTF8(link_path) },
},
},
};
}
pub fn realpath(this: *NodeFS, args: Arguments.Realpath, comptime _: Flavor) Maybe(Return.Realpath) {
if (Environment.isWindows) {
var req: uv.fs_t = uv.fs_t.uninitialized;
defer req.deinit();
const rc = uv.uv_fs_realpath(bun.Async.Loop.get(), &req, args.path.sliceZ(&this.sync_error_buf).ptr, null);
if (rc.errno()) |errno|
return .{ .err = Syscall.Error{
.errno = errno,
.syscall = .realpath,
.path = args.path.slice(),
} };
// Seems like `rc` does not contain the errno?
bun.assert(rc.errEnum() == null);
const buf = bun.span(req.ptrAs([*:0]u8));
return .{
.result = switch (args.encoding) {
.buffer => .{
.buffer = Buffer.fromString(buf, bun.default_allocator) catch unreachable,
},
else => if (args.path == .slice_with_underlying_string and
strings.eqlLong(args.path.slice_with_underlying_string.slice(), buf, true))
.{
.string = args.path.slice_with_underlying_string.dupeRef(),
}
else
.{
.string = .{ .utf8 = .{}, .underlying = bun.String.createUTF8(buf) },
},
},
};
}
var outbuf: bun.PathBuffer = undefined;
var inbuf = &this.sync_error_buf;
if (comptime Environment.allow_assert) bun.assert(FileSystem.instance_loaded);
const path_slice = args.path.slice();
var parts = [_]string{ FileSystem.instance.top_level_dir, path_slice };
const path_ = FileSystem.instance.absBuf(&parts, inbuf);
inbuf[path_.len] = 0;
const path: [:0]u8 = inbuf[0..path_.len :0];
const flags = if (comptime Environment.isLinux)
// O_PATH is faster
bun.O.PATH
else
bun.O.RDONLY;
const fd = switch (bun.sys.open(path, flags, 0)) {
.err => |err| return .{ .err = err.withPath(path) },
.result => |fd_| fd_,
};
defer {
_ = Syscall.close(fd);
}
const buf = switch (Syscall.getFdPath(fd, &outbuf)) {
.err => |err| return .{ .err = err.withPath(path) },
.result => |buf_| buf_,
};
return .{
.result = switch (args.encoding) {
.buffer => .{
.buffer = Buffer.fromString(buf, bun.default_allocator) catch unreachable,
},
else => if (args.path == .slice_with_underlying_string and
strings.eqlLong(args.path.slice_with_underlying_string.slice(), buf, true))
.{
.string = args.path.slice_with_underlying_string.dupeRef(),
}
else
.{
.string = .{ .utf8 = .{}, .underlying = bun.String.createUTF8(buf) },
},
},
};
}
pub const realpathNative = realpath;
// pub fn realpathNative(this: *NodeFS, args: Arguments.Realpath, comptime flavor: Flavor) Maybe(Return.Realpath) {
// _ = args;
//
//
// return error.NotImplementedYet;
// }
pub fn rename(this: *NodeFS, args: Arguments.Rename, comptime flavor: Flavor) Maybe(Return.Rename) {
_ = flavor;
const from_buf = &this.sync_error_buf;
var to_buf: bun.PathBuffer = undefined;
const from = args.old_path.sliceZ(from_buf);
const to = args.new_path.sliceZ(&to_buf);
return Syscall.rename(from, to);
}
pub fn rmdir(this: *NodeFS, args: Arguments.RmDir, comptime _: Flavor) Maybe(Return.Rmdir) {
if (args.recursive) {
std.fs.cwd().deleteTree(args.path.slice()) catch |err| {
const errno: bun.C.E = switch (err) {
error.AccessDenied => .PERM,
error.FileTooBig => .FBIG,
error.SymLinkLoop => .LOOP,
error.ProcessFdQuotaExceeded => .NFILE,
error.NameTooLong => .NAMETOOLONG,
error.SystemFdQuotaExceeded => .MFILE,
error.SystemResources => .NOMEM,
error.ReadOnlyFileSystem => .ROFS,
error.FileSystem => .IO,
error.FileBusy => .BUSY,
error.DeviceBusy => .BUSY,
// One of the path components was not a directory.
// This error is unreachable if `sub_path` does not contain a path separator.
error.NotDir => .NOTDIR,
// On Windows, file paths must be valid Unicode.
error.InvalidUtf8 => .INVAL,
error.InvalidWtf8 => .INVAL,
// On Windows, file paths cannot contain these characters:
// '/', '*', '?', '"', '<', '>', '|'
error.BadPathName => .INVAL,
else => .FAULT,
};
return Maybe(Return.Rm){
.err = bun.sys.Error.fromCode(errno, .rmdir),
};
};
return Maybe(Return.Rmdir).success;
}
if (comptime Environment.isWindows) {
return Syscall.rmdir(args.path.sliceZ(&this.sync_error_buf));
}
return Maybe(Return.Rmdir).errnoSysP(system.rmdir(args.path.sliceZ(&this.sync_error_buf)), .rmdir, args.path.slice()) orelse
Maybe(Return.Rmdir).success;
}
pub fn rm(this: *NodeFS, args: Arguments.RmDir, comptime _: Flavor) Maybe(Return.Rm) {
// We cannot use removefileat() on macOS because it does not handle write-protected files as expected.
if (args.recursive) {
// TODO: switch to an implementation which does not use any "unreachable"
std.fs.cwd().deleteTree(args.path.slice()) catch |err| {
const errno: E = switch (err) {
// error.InvalidHandle => .BADF,
error.AccessDenied => .PERM,
error.FileTooBig => .FBIG,
error.SymLinkLoop => .LOOP,
error.ProcessFdQuotaExceeded => .NFILE,
error.NameTooLong => .NAMETOOLONG,
error.SystemFdQuotaExceeded => .MFILE,
error.SystemResources => .NOMEM,
error.ReadOnlyFileSystem => .ROFS,
error.FileSystem => .IO,
error.FileBusy => .BUSY,
error.DeviceBusy => .BUSY,
// One of the path components was not a directory.
// This error is unreachable if `sub_path` does not contain a path separator.
error.NotDir => .NOTDIR,
// On Windows, file paths must be valid WTF-8.
error.InvalidUtf8 => .INVAL,
error.InvalidWtf8 => .INVAL,
// On Windows, file paths cannot contain these characters:
// '/', '*', '?', '"', '<', '>', '|'
error.BadPathName => .INVAL,
else => .FAULT,
};
if (args.force) {
return Maybe(Return.Rm).success;
}
return Maybe(Return.Rm){
.err = bun.sys.Error.fromCode(errno, .unlink),
};
};
return Maybe(Return.Rm).success;
}
const dest = args.path.sliceZ(&this.sync_error_buf);
std.posix.unlinkZ(dest) catch |er| {
// empircally, it seems to return AccessDenied when the
// file is actually a directory on macOS.
if (args.recursive and
(er == error.IsDir or er == error.NotDir or er == error.AccessDenied))
{
std.posix.rmdirZ(dest) catch |err| {
if (args.force) {
return Maybe(Return.Rm).success;
}
const code: E = switch (err) {
error.AccessDenied => .PERM,
error.SymLinkLoop => .LOOP,
error.NameTooLong => .NAMETOOLONG,
error.SystemResources => .NOMEM,
error.ReadOnlyFileSystem => .ROFS,
error.FileBusy => .BUSY,
error.FileNotFound => .NOENT,
error.InvalidUtf8 => .INVAL,
error.InvalidWtf8 => .INVAL,
error.BadPathName => .INVAL,
else => .FAULT,
};
return .{
.err = bun.sys.Error.fromCode(
code,
.rmdir,
),
};
};
return Maybe(Return.Rm).success;
}
if (args.force) {
return Maybe(Return.Rm).success;
}
{
const code: E = switch (er) {
error.AccessDenied => .PERM,
error.SymLinkLoop => .LOOP,
error.NameTooLong => .NAMETOOLONG,
error.SystemResources => .NOMEM,
error.ReadOnlyFileSystem => .ROFS,
error.FileBusy => .BUSY,
error.InvalidUtf8 => .INVAL,
error.InvalidWtf8 => .INVAL,
error.BadPathName => .INVAL,
error.FileNotFound => .NOENT,
else => .FAULT,
};
return .{
.err = bun.sys.Error.fromCode(
code,
.unlink,
),
};
}
};
return Maybe(Return.Rm).success;
}
pub fn stat(this: *NodeFS, args: Arguments.Stat, comptime _: Flavor) Maybe(Return.Stat) {
const path = args.path.sliceZ(&this.sync_error_buf);
return switch (Syscall.stat(path)) {
.result => |result| .{
.result = .{ .stats = Stats.init(result, args.big_int) },
},
.err => |err| brk: {
if (!args.throw_if_no_entry and err.getErrno() == .NOENT) {
return .{ .result = .{ .not_found = {} } };
}
break :brk .{ .err = err.withPath(path) };
},
};
}
pub fn symlink(this: *NodeFS, args: Arguments.Symlink, comptime _: Flavor) Maybe(Return.Symlink) {
var to_buf: bun.PathBuffer = undefined;
if (Environment.isWindows) {
const target: [:0]u8 = args.old_path.sliceZWithForceCopy(&this.sync_error_buf, true);
// UV does not normalize slashes in symlink targets, but Node does
// See https://github.com/oven-sh/bun/issues/8273
bun.path.dangerouslyConvertPathToWindowsInPlace(u8, target);
return Syscall.symlinkUV(
target,
args.new_path.sliceZ(&to_buf),
switch (args.link_type) {
.file => 0,
.dir => uv.UV_FS_SYMLINK_DIR,
.junction => uv.UV_FS_SYMLINK_JUNCTION,
},
);
}
return Syscall.symlink(
args.old_path.sliceZ(&this.sync_error_buf),
args.new_path.sliceZ(&to_buf),
);
}
fn _truncate(this: *NodeFS, path: PathLike, len: JSC.WebCore.Blob.SizeType, flags: i32, comptime _: Flavor) Maybe(Return.Truncate) {
if (comptime Environment.isWindows) {
const file = bun.sys.open(
path.sliceZ(&this.sync_error_buf),
bun.O.WRONLY | flags,
0o644,
);
if (file == .err)
return .{ .err = file.err.withPath(path.slice()) };
defer _ = Syscall.close(file.result);
return Syscall.ftruncate(file.result, len);
}
return Maybe(Return.Truncate).errnoSys(C.truncate(path.sliceZ(&this.sync_error_buf), len), .truncate) orelse
Maybe(Return.Truncate).success;
}
pub fn truncate(this: *NodeFS, args: Arguments.Truncate, comptime flavor: Flavor) Maybe(Return.Truncate) {
return switch (args.path) {
.fd => |fd| this.ftruncate(
Arguments.FTruncate{ .fd = fd, .len = args.len },
flavor,
),
.path => this._truncate(
args.path.path,
args.len,
args.flags,
flavor,
),
};
}
pub fn unlink(this: *NodeFS, args: Arguments.Unlink, comptime _: Flavor) Maybe(Return.Unlink) {
if (Environment.isWindows) {
return Syscall.unlink(args.path.sliceZ(&this.sync_error_buf));
}
return Maybe(Return.Unlink).errnoSysP(system.unlink(args.path.sliceZ(&this.sync_error_buf)), .unlink, args.path.slice()) orelse
Maybe(Return.Unlink).success;
}
pub fn watchFile(_: *NodeFS, args: Arguments.WatchFile, comptime flavor: Flavor) Maybe(Return.WatchFile) {
bun.assert(flavor == .sync);
const watcher = args.createStatWatcher() catch |err| {
const buf = std.fmt.allocPrint(bun.default_allocator, "Failed to watch file {}", .{bun.fmt.QuotedFormatter{ .text = args.path.slice() }}) catch bun.outOfMemory();
defer bun.default_allocator.free(buf);
args.global_this.throwValue((JSC.SystemError{
.message = bun.String.init(buf),
.code = bun.String.init(@errorName(err)),
.path = bun.String.init(args.path.slice()),
}).toErrorInstance(args.global_this)) catch {};
return Maybe(Return.Watch){ .result = JSC.JSValue.undefined };
};
return Maybe(Return.Watch){ .result = watcher };
}
pub fn unwatchFile(_: *NodeFS, _: Arguments.UnwatchFile, comptime _: Flavor) Maybe(Return.UnwatchFile) {
return Maybe(Return.UnwatchFile).todo();
}
pub fn utimes(this: *NodeFS, args: Arguments.Utimes, comptime _: Flavor) Maybe(Return.Utimes) {
if (comptime Environment.isWindows) {
var req: uv.fs_t = uv.fs_t.uninitialized;
defer req.deinit();
const rc = uv.uv_fs_utime(
bun.Async.Loop.get(),
&req,
args.path.sliceZ(&this.sync_error_buf).ptr,
args.atime,
args.mtime,
null,
);
return if (rc.errno()) |errno|
.{ .err = Syscall.Error{
.errno = errno,
.syscall = .utimes,
} }
else
Maybe(Return.Utimes).success;
}
bun.assert(args.mtime.tv_nsec <= 1e9);
bun.assert(args.atime.tv_nsec <= 1e9);
var times = [2]std.c.timeval{
.{
.tv_sec = args.atime.tv_sec,
.tv_usec = @intCast(@divTrunc(args.atime.tv_nsec, std.time.ns_per_us)),
},
.{
.tv_sec = args.mtime.tv_sec,
.tv_usec = @intCast(@divTrunc(args.mtime.tv_nsec, std.time.ns_per_us)),
},
};
return if (Maybe(Return.Utimes).errnoSysP(std.c.utimes(args.path.sliceZ(&this.sync_error_buf), &times), .utimes, args.path.slice())) |err|
err
else
Maybe(Return.Utimes).success;
}
pub fn lutimes(this: *NodeFS, args: Arguments.Lutimes, comptime _: Flavor) Maybe(Return.Lutimes) {
if (comptime Environment.isWindows) {
var req: uv.fs_t = uv.fs_t.uninitialized;
defer req.deinit();
const rc = uv.uv_fs_lutime(
bun.Async.Loop.get(),
&req,
args.path.sliceZ(&this.sync_error_buf).ptr,
args.atime,
args.mtime,
null,
);
return if (rc.errno()) |errno|
.{ .err = Syscall.Error{
.errno = errno,
.syscall = .utimes,
} }
else
Maybe(Return.Utimes).success;
}
bun.assert(args.mtime.tv_nsec <= 1e9);
bun.assert(args.atime.tv_nsec <= 1e9);
var times = [2]std.c.timeval{
.{
.tv_sec = args.atime.tv_sec,
.tv_usec = @intCast(@divTrunc(args.atime.tv_nsec, std.time.ns_per_us)),
},
.{
.tv_sec = args.mtime.tv_sec,
.tv_usec = @intCast(@divTrunc(args.mtime.tv_nsec, std.time.ns_per_us)),
},
};
return if (Maybe(Return.Lutimes).errnoSysP(C.lutimes(args.path.sliceZ(&this.sync_error_buf), &times), .lutimes, args.path.slice())) |err|
err
else
Maybe(Return.Lutimes).success;
}
pub fn watch(_: *NodeFS, args: Arguments.Watch, comptime _: Flavor) Maybe(Return.Watch) {
return args.createFSWatcher();
}
/// This function is `cpSync`, but only if you pass `{ recursive: ..., force: ..., errorOnExist: ..., mode: ... }'
/// The other options like `filter` use a JS fallback, see `src/js/internal/fs/cp.ts`
pub fn cp(this: *NodeFS, args: Arguments.Cp, comptime flavor: Flavor) Maybe(Return.Cp) {
comptime bun.assert(flavor == .sync);
var src_buf: bun.PathBuffer = undefined;
var dest_buf: bun.PathBuffer = undefined;
const src = args.src.osPath(&src_buf);
const dest = args.dest.osPath(&dest_buf);
return this._cpSync(
@as(*bun.OSPathBuffer, @alignCast(@ptrCast(&src_buf))),
@intCast(src.len),
@as(*bun.OSPathBuffer, @alignCast(@ptrCast(&dest_buf))),
@intCast(dest.len),
args,
);
}
pub fn osPathIntoSyncErrorBuf(this: *NodeFS, slice: anytype) []const u8 {
if (Environment.isWindows) {
return bun.strings.fromWPath(&this.sync_error_buf, slice);
} else {
@memcpy(this.sync_error_buf[0..slice.len], slice);
return this.sync_error_buf[0..slice.len];
}
}
pub fn osPathIntoSyncErrorBufOverlap(this: *NodeFS, slice: anytype) []const u8 {
if (Environment.isWindows) {
var tmp: bun.WPathBuffer = undefined;
@memcpy(tmp[0..slice.len], slice);
return bun.strings.fromWPath(&this.sync_error_buf, tmp[0..slice.len]);
} else {}
}
fn _cpSync(
this: *NodeFS,
src_buf: *bun.OSPathBuffer,
src_dir_len: PathString.PathInt,
dest_buf: *bun.OSPathBuffer,
dest_dir_len: PathString.PathInt,
args: Arguments.Cp,
) Maybe(Return.Cp) {
const cp_flags = args.flags;
const src = src_buf[0..src_dir_len :0];
const dest = dest_buf[0..dest_dir_len :0];
if (Environment.isWindows) {
const attributes = windows.GetFileAttributesW(src);
if (attributes == windows.INVALID_FILE_ATTRIBUTES) {
return .{ .err = .{
.errno = @intFromEnum(C.SystemErrno.ENOENT),
.syscall = .copyfile,
.path = this.osPathIntoSyncErrorBuf(src),
} };
}
if ((attributes & windows.FILE_ATTRIBUTE_DIRECTORY) == 0) {
const r = this._copySingleFileSync(
src,
dest,
@enumFromInt((if (cp_flags.errorOnExist or !cp_flags.force) Constants.COPYFILE_EXCL else @as(u8, 0))),
attributes,
args,
);
if (r == .err and r.err.errno == @intFromEnum(E.EXIST) and !cp_flags.errorOnExist) {
return Maybe(Return.Cp).success;
}
return r;
}
} else {
const stat_ = switch (Syscall.lstat(src)) {
.result => |result| result,
.err => |err| {
@memcpy(this.sync_error_buf[0..src.len], src);
return .{ .err = err.withPath(this.sync_error_buf[0..src.len]) };
},
};
if (!posix.S.ISDIR(stat_.mode)) {
const r = this._copySingleFileSync(
src,
dest,
@enumFromInt((if (cp_flags.errorOnExist or !cp_flags.force) Constants.COPYFILE_EXCL else @as(u8, 0))),
stat_,
args,
);
if (r == .err and r.err.errno == @intFromEnum(E.EXIST) and !cp_flags.errorOnExist) {
return Maybe(Return.Cp).success;
}
return r;
}
}
if (!cp_flags.recursive) {
return .{
.err = .{
.errno = @intFromEnum(E.ISDIR),
.syscall = .copyfile,
.path = this.osPathIntoSyncErrorBuf(src),
},
};
}
if (comptime Environment.isMac) try_with_clonefile: {
if (Maybe(Return.Cp).errnoSysP(C.clonefile(src, dest, 0), .clonefile, src)) |err| {
switch (err.getErrno()) {
.NAMETOOLONG, .ROFS, .INVAL, .ACCES, .PERM => |errno| {
if (errno == .ACCES or errno == .PERM) {
if (args.flags.force) {
break :try_with_clonefile;
}
}
@memcpy(this.sync_error_buf[0..src.len], src);
return .{ .err = err.err.withPath(this.sync_error_buf[0..src.len]) };
},
// Other errors may be due to clonefile() not being supported
// We'll fall back to other implementations
else => {},
}
} else {
return Maybe(Return.Cp).success;
}
}
const fd = switch (Syscall.openatOSPath(
bun.toFD((std.fs.cwd().fd)),
src,
bun.O.DIRECTORY | bun.O.RDONLY,
0,
)) {
.err => |err| {
return .{ .err = err.withPath(this.osPathIntoSyncErrorBuf(src)) };
},
.result => |fd_| fd_,
};
defer _ = Syscall.close(fd);
switch (this.mkdirRecursiveOSPath(dest, Arguments.Mkdir.DefaultMode, false)) {
.err => |err| return Maybe(Return.Cp){ .err = err },
.result => {},
}
var iterator = iterator: {
const dir = fd.asDir();
break :iterator DirIterator.iterate(dir, if (Environment.isWindows) .u16 else .u8);
};
var entry = iterator.next();
while (switch (entry) {
.err => |err| {
return .{ .err = err.withPath(this.osPathIntoSyncErrorBuf(src)) };
},
.result => |ent| ent,
}) |current| : (entry = iterator.next()) {
const name_slice = current.name.slice();
@memcpy(src_buf[src_dir_len + 1 .. src_dir_len + 1 + name_slice.len], name_slice);
src_buf[src_dir_len] = std.fs.path.sep;
src_buf[src_dir_len + 1 + name_slice.len] = 0;
@memcpy(dest_buf[dest_dir_len + 1 .. dest_dir_len + 1 + name_slice.len], name_slice);
dest_buf[dest_dir_len] = std.fs.path.sep;
dest_buf[dest_dir_len + 1 + name_slice.len] = 0;
switch (current.kind) {
.directory => {
const r = this._cpSync(
src_buf,
src_dir_len + @as(PathString.PathInt, @intCast(1 + name_slice.len)),
dest_buf,
dest_dir_len + @as(PathString.PathInt, @intCast(1 + name_slice.len)),
args,
);
switch (r) {
.err => return r,
.result => {},
}
},
else => {
const r = this._copySingleFileSync(
src_buf[0 .. src_dir_len + 1 + name_slice.len :0],
dest_buf[0 .. dest_dir_len + 1 + name_slice.len :0],
@enumFromInt((if (cp_flags.errorOnExist or !cp_flags.force) Constants.COPYFILE_EXCL else @as(u8, 0))),
null,
args,
);
switch (r) {
.err => {
if (r.err.errno == @intFromEnum(E.EXIST) and !cp_flags.errorOnExist) {
continue;
}
return r;
},
.result => {},
}
},
}
}
return Maybe(Return.Cp).success;
}
/// On Windows, copying a file onto itself will return EBUSY, which is an
/// unintuitive and cryptic error to return to the user for an operation
/// that should seemingly be a no-op.
///
/// So we check if the source and destination are the same file, and if they
/// are, we return success.
///
/// This is copied directly from libuv's implementation of `uv_fs_copyfile`
/// for Windows:
///
/// https://github.com/libuv/libuv/blob/497f3168d13ea9a92ad18c28e8282777ec2acf73/src/win/fs.c#L2069
///
/// **This function does nothing on non-Windows platforms**.
fn shouldIgnoreEbusy(src: PathLike, dest: PathLike, result: Maybe(Return.CopyFile)) Maybe(Return.CopyFile) {
if (comptime !Environment.isWindows) return result;
if (result != .err or result.err.getErrno() != .BUSY) return result;
var buf: bun.PathBuffer = undefined;
const statbuf = switch (Syscall.stat(src.sliceZ(&buf))) {
.result => |b| b,
.err => return result,
};
const new_statbuf = switch (Syscall.stat(dest.sliceZ(&buf))) {
.result => |b| b,
.err => return result,
};
if (statbuf.dev == new_statbuf.dev and statbuf.ino == new_statbuf.ino) {
return Maybe(Return.CopyFile).success;
}
return result;
}
/// This is `copyFile`, but it copies symlinks as-is
pub fn _copySingleFileSync(
this: *NodeFS,
src: bun.OSPathSliceZ,
dest: bun.OSPathSliceZ,
mode: Constants.Copyfile,
/// Stat on posix, file attributes on windows
reuse_stat: ?if (Environment.isWindows) windows.DWORD else std.posix.Stat,
args: Arguments.Cp,
) Maybe(Return.CopyFile) {
const ret = Maybe(Return.CopyFile);
// TODO: do we need to fchown?
if (Environment.isMac) {
if (mode.isForceClone()) {
// https://www.manpagez.com/man/2/clonefile/
return ret.errnoSysP(C.clonefile(src, dest, 0), .clonefile, src) orelse ret.success;
} else {
const stat_ = reuse_stat orelse switch (Syscall.lstat(src)) {
.result => |result| result,
.err => |err| {
@memcpy(this.sync_error_buf[0..src.len], src);
return .{ .err = err.withPath(this.sync_error_buf[0..src.len]) };
},
};
if (!posix.S.ISREG(stat_.mode)) {
if (posix.S.ISLNK(stat_.mode)) {
var mode_: Mode = C.darwin.COPYFILE_ACL | C.darwin.COPYFILE_DATA | C.darwin.COPYFILE_NOFOLLOW_SRC;
if (mode.shouldntOverwrite()) {
mode_ |= C.darwin.COPYFILE_EXCL;
}
return ret.errnoSysP(C.copyfile(src, dest, null, mode_), .copyfile, src) orelse ret.success;
}
@memcpy(this.sync_error_buf[0..src.len], src);
return Maybe(Return.CopyFile){ .err = .{
.errno = @intFromEnum(C.SystemErrno.ENOTSUP),
.path = this.sync_error_buf[0..src.len],
.syscall = .copyfile,
} };
}
// 64 KB is about the break-even point for clonefile() to be worth it
// at least, on an M1 with an NVME SSD.
if (stat_.size > 128 * 1024) {
if (!mode.shouldntOverwrite()) {
// clonefile() will fail if it already exists
_ = Syscall.unlink(dest);
}
if (ret.errnoSysP(C.clonefile(src, dest, 0), .clonefile, src) == null) {
_ = C.chmod(dest, stat_.mode);
return ret.success;
}
} else {
const src_fd = switch (Syscall.open(src, bun.O.RDONLY, 0o644)) {
.result => |result| result,
.err => |err| {
@memcpy(this.sync_error_buf[0..src.len], src);
return .{ .err = err.withPath(this.sync_error_buf[0..src.len]) };
},
};
defer {
_ = Syscall.close(src_fd);
}
var flags: Mode = bun.O.CREAT | bun.O.WRONLY;
var wrote: usize = 0;
if (mode.shouldntOverwrite()) {
flags |= bun.O.EXCL;
}
const dest_fd = dest_fd: {
switch (Syscall.open(dest, flags, JSC.Node.default_permission)) {
.result => |result| break :dest_fd result,
.err => |err| {
if (err.getErrno() == .NOENT) {
// Create the parent directory if it doesn't exist
var len = dest.len;
while (len > 0 and dest[len - 1] != std.fs.path.sep) {
len -= 1;
}
const mkdirResult = this.mkdirRecursive(.{
.path = PathLike{ .string = PathString.init(dest[0..len]) },
.recursive = true,
}, .sync);
if (mkdirResult == .err) {
return Maybe(Return.CopyFile){ .err = mkdirResult.err };
}
switch (Syscall.open(dest, flags, JSC.Node.default_permission)) {
.result => |result| break :dest_fd result,
.err => {},
}
}
@memcpy(this.sync_error_buf[0..dest.len], dest);
return Maybe(Return.CopyFile){ .err = err.withPath(this.sync_error_buf[0..dest.len]) };
},
}
};
defer {
_ = std.c.ftruncate(dest_fd.int(), @as(std.c.off_t, @intCast(@as(u63, @truncate(wrote)))));
_ = C.fchmod(dest_fd.int(), stat_.mode);
_ = Syscall.close(dest_fd);
}
return copyFileUsingReadWriteLoop(src, dest, src_fd, dest_fd, @intCast(@max(stat_.size, 0)), &wrote);
}
}
// we fallback to copyfile() when the file is > 128 KB and clonefile fails
// clonefile() isn't supported on all devices
// nor is it supported across devices
var mode_: Mode = C.darwin.COPYFILE_ACL | C.darwin.COPYFILE_DATA | C.darwin.COPYFILE_NOFOLLOW_SRC;
if (mode.shouldntOverwrite()) {
mode_ |= C.darwin.COPYFILE_EXCL;
}
const first_try = ret.errnoSysP(C.copyfile(src, dest, null, mode_), .copyfile, src) orelse return ret.success;
if (first_try == .err and first_try.err.errno == @intFromEnum(C.E.NOENT)) {
bun.makePath(std.fs.cwd(), bun.path.dirname(dest, .auto)) catch {};
return ret.errnoSysP(C.copyfile(src, dest, null, mode_), .copyfile, src) orelse ret.success;
}
return first_try;
}
if (Environment.isLinux) {
// https://manpages.debian.org/testing/manpages-dev/ioctl_ficlone.2.en.html
if (mode.isForceClone()) {
return Maybe(Return.CopyFile).todo();
}
const src_fd = switch (Syscall.open(src, bun.O.RDONLY | bun.O.NOFOLLOW, 0o644)) {
.result => |result| result,
.err => |err| {
if (err.getErrno() == .LOOP) {
// ELOOP is returned when you open a symlink with NOFOLLOW.
// as in, it does not actually let you open it.
return Syscall.symlink(src, dest);
}
return .{ .err = err };
},
};
defer {
_ = Syscall.close(src_fd);
}
const stat_: linux.Stat = switch (Syscall.fstat(src_fd)) {
.result => |result| result,
.err => |err| return Maybe(Return.CopyFile){ .err = err.withFd(src_fd) },
};
if (!posix.S.ISREG(stat_.mode)) {
return Maybe(Return.CopyFile){ .err = .{
.errno = @intFromEnum(C.SystemErrno.ENOTSUP),
.syscall = .copyfile,
} };
}
var flags: Mode = bun.O.CREAT | bun.O.WRONLY;
var wrote: usize = 0;
if (mode.shouldntOverwrite()) {
flags |= bun.O.EXCL;
}
const dest_fd = dest_fd: {
switch (Syscall.open(dest, flags, JSC.Node.default_permission)) {
.result => |result| break :dest_fd result,
.err => |err| {
if (err.getErrno() == .NOENT) {
// Create the parent directory if it doesn't exist
var len = dest.len;
while (len > 0 and dest[len - 1] != std.fs.path.sep) {
len -= 1;
}
const mkdirResult = this.mkdirRecursive(.{
.path = PathLike{ .string = PathString.init(dest[0..len]) },
.recursive = true,
}, .sync);
if (mkdirResult == .err) {
return Maybe(Return.CopyFile){ .err = mkdirResult.err };
}
switch (Syscall.open(dest, flags, JSC.Node.default_permission)) {
.result => |result| break :dest_fd result,
.err => {},
}
}
@memcpy(this.sync_error_buf[0..dest.len], dest);
return Maybe(Return.CopyFile){ .err = err.withPath(this.sync_error_buf[0..dest.len]) };
},
}
};
var size: usize = @intCast(@max(stat_.size, 0));
if (posix.S.ISREG(stat_.mode) and bun.can_use_ioctl_ficlone()) {
const rc = bun.C.linux.ioctl_ficlone(dest_fd, src_fd);
if (rc == 0) {
_ = C.fchmod(dest_fd.cast(), stat_.mode);
_ = Syscall.close(dest_fd);
return ret.success;
}
bun.disable_ioctl_ficlone();
}
defer {
_ = linux.ftruncate(dest_fd.cast(), @as(i64, @intCast(@as(u63, @truncate(wrote)))));
_ = linux.fchmod(dest_fd.cast(), stat_.mode);
_ = Syscall.close(dest_fd);
}
var off_in_copy = @as(i64, @bitCast(@as(u64, 0)));
var off_out_copy = @as(i64, @bitCast(@as(u64, 0)));
if (!bun.canUseCopyFileRangeSyscall()) {
return copyFileUsingSendfileOnLinuxWithReadWriteFallback(src, dest, src_fd, dest_fd, size, &wrote);
}
if (size == 0) {
// copy until EOF
while (true) {
// Linux Kernel 5.3 or later
// Not supported in gVisor
const written = linux.copy_file_range(src_fd.cast(), &off_in_copy, dest_fd.cast(), &off_out_copy, std.mem.page_size, 0);
if (ret.errnoSysP(written, .copy_file_range, dest)) |err| {
return switch (err.getErrno()) {
inline .XDEV, .NOSYS => |errno| brk: {
if (comptime errno == .NOSYS) {
bun.disableCopyFileRangeSyscall();
}
break :brk copyFileUsingSendfileOnLinuxWithReadWriteFallback(src, dest, src_fd, dest_fd, size, &wrote);
},
else => return err,
};
}
// wrote zero bytes means EOF
if (written == 0) break;
wrote +|= written;
}
} else {
while (size > 0) {
// Linux Kernel 5.3 or later
// Not supported in gVisor
const written = linux.copy_file_range(src_fd.cast(), &off_in_copy, dest_fd.cast(), &off_out_copy, size, 0);
if (ret.errnoSysP(written, .copy_file_range, dest)) |err| {
return switch (err.getErrno()) {
inline .XDEV, .NOSYS => |errno| brk: {
if (comptime errno == .NOSYS) {
bun.disableCopyFileRangeSyscall();
}
break :brk copyFileUsingSendfileOnLinuxWithReadWriteFallback(src, dest, src_fd, dest_fd, size, &wrote);
},
else => return err,
};
}
// wrote zero bytes means EOF
if (written == 0) break;
wrote +|= written;
size -|= written;
}
}
return ret.success;
}
if (Environment.isWindows) {
const src_enoent_maybe = ret.initErrWithP(.ENOENT, .copyfile, this.osPathIntoSyncErrorBuf(src));
const dst_enoent_maybe = ret.initErrWithP(.ENOENT, .copyfile, this.osPathIntoSyncErrorBuf(dest));
const stat_ = reuse_stat orelse switch (windows.GetFileAttributesW(src)) {
windows.INVALID_FILE_ATTRIBUTES => return ret.errnoSysP(0, .copyfile, this.osPathIntoSyncErrorBuf(src)).?,
else => |result| result,
};
if (stat_ & windows.FILE_ATTRIBUTE_REPARSE_POINT == 0) {
if (windows.CopyFileW(src, dest, @intFromBool(mode.shouldntOverwrite())) == 0) {
var err = windows.GetLastError();
var errpath: bun.OSPathSliceZ = undefined;
switch (err) {
.FILE_EXISTS, .ALREADY_EXISTS => errpath = dest,
.PATH_NOT_FOUND => {
bun.makePathW(std.fs.cwd(), bun.path.dirnameW(dest)) catch {};
const second_try = windows.CopyFileW(src, dest, @intFromBool(mode.shouldntOverwrite()));
if (second_try > 0) return ret.success;
err = windows.GetLastError();
errpath = dest;
if (err == .FILE_EXISTS or err == .ALREADY_EXISTS) errpath = src;
},
else => errpath = src,
}
const result = ret.errnoSysP(0, .copyfile, this.osPathIntoSyncErrorBuf(dest)) orelse src_enoent_maybe;
return shouldIgnoreEbusy(args.src, args.dest, result);
}
return ret.success;
} else {
const handle = switch (bun.sys.openatWindows(bun.invalid_fd, src, bun.O.RDONLY)) {
.err => |err| return .{ .err = err },
.result => |src_fd| src_fd,
};
var wbuf: bun.WPathBuffer = undefined;
const len = bun.windows.GetFinalPathNameByHandleW(handle.cast(), &wbuf, wbuf.len, 0);
if (len == 0) {
return ret.errnoSysP(0, .copyfile, this.osPathIntoSyncErrorBuf(dest)) orelse dst_enoent_maybe;
}
const flags = if (stat_ & windows.FILE_ATTRIBUTE_DIRECTORY != 0)
std.os.windows.SYMBOLIC_LINK_FLAG_DIRECTORY
else
0;
if (windows.CreateSymbolicLinkW(dest, wbuf[0..len :0], flags) == 0) {
return ret.errnoSysP(0, .copyfile, this.osPathIntoSyncErrorBuf(dest)) orelse dst_enoent_maybe;
}
return ret.success;
}
}
return ret.todo();
}
/// Directory scanning + clonefile will block this thread, then each individual file copy (what the sync version
/// calls "_copySingleFileSync") will be dispatched as a separate task.
pub fn cpAsync(this: *NodeFS, task: *AsyncCpTask) void {
AsyncCpTask.cpAsync(this, task);
}
// returns boolean `should_continue`
fn _cpAsyncDirectory(
this: *NodeFS,
args: Arguments.Cp.Flags,
task: *AsyncCpTask,
src_buf: *bun.OSPathBuffer,
src_dir_len: PathString.PathInt,
dest_buf: *bun.OSPathBuffer,
dest_dir_len: PathString.PathInt,
) bool {
return AsyncCpTask._cpAsyncDirectory(this, args, task, src_buf, src_dir_len, dest_buf, dest_dir_len);
}
};
pub export fn Bun__mkdirp(globalThis: *JSC.JSGlobalObject, path: [*:0]const u8) bool {
return globalThis.bunVM().nodeFS().mkdirRecursive(
Arguments.Mkdir{
.path = PathLike{ .string = PathString.init(bun.span(path)) },
.recursive = true,
},
.sync,
) != .err;
}
comptime {
if (!JSC.is_bindgen)
_ = Bun__mkdirp;
}
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