Files
bun.sh/src/cli/build_command.zig
2023-04-10 11:58:19 -07:00

244 lines
10 KiB
Zig

const std = @import("std");
const Command = @import("../cli.zig").Command;
const bun = @import("bun");
const string = bun.string;
const Output = bun.Output;
const Global = bun.Global;
const Environment = bun.Environment;
const strings = bun.strings;
const MutableString = bun.MutableString;
const stringZ = bun.stringZ;
const default_allocator = bun.default_allocator;
const C = bun.C;
const lex = bun.js_lexer;
const logger = @import("bun").logger;
const options = @import("../options.zig");
const js_parser = bun.js_parser;
const json_parser = bun.JSON;
const js_printer = bun.js_printer;
const js_ast = bun.JSAst;
const linker = @import("../linker.zig");
const sync = @import("../sync.zig");
const Api = @import("../api/schema.zig").Api;
const resolve_path = @import("../resolver/resolve_path.zig");
const configureTransformOptionsForBun = @import("../bun.js/config.zig").configureTransformOptionsForBun;
const bundler = bun.bundler;
const NodeModuleBundle = @import("../node_module_bundle.zig").NodeModuleBundle;
const GenerateNodeModuleBundle = @import("../bundler/generate_node_modules_bundle.zig");
const DotEnv = @import("../env_loader.zig");
const fs = @import("../fs.zig");
const Router = @import("../router.zig");
const BundleV2 = @import("../bundler/bundle_v2.zig").BundleV2;
var estimated_input_lines_of_code_: usize = undefined;
pub const BuildCommand = struct {
pub fn exec(
ctx: Command.Context,
) !void {
Global.configureAllocator(.{ .long_running = true });
var allocator = ctx.allocator;
var log = ctx.log;
estimated_input_lines_of_code_ = 0;
var this_bundler = try bundler.Bundler.init(allocator, log, ctx.args, null, null);
this_bundler.options.entry_names = ctx.bundler_options.entry_names;
this_bundler.resolver.opts.entry_names = ctx.bundler_options.entry_names;
this_bundler.options.output_dir = ctx.bundler_options.outdir;
this_bundler.resolver.opts.output_dir = ctx.bundler_options.outdir;
this_bundler.options.react_server_components = ctx.bundler_options.react_server_components;
this_bundler.resolver.opts.react_server_components = ctx.bundler_options.react_server_components;
this_bundler.options.code_splitting = ctx.bundler_options.code_splitting;
this_bundler.resolver.opts.code_splitting = ctx.bundler_options.code_splitting;
if (this_bundler.options.entry_points.len > 1 and ctx.bundler_options.outdir.len == 0) {
Output.prettyErrorln("<red>error<r>: must use \"outdir\" when there are multiple input files", .{});
Global.exit(1);
return;
}
this_bundler.configureLinker();
// This step is optional
// If it fails for any reason, ignore it and continue bundling
// This is partially a workaround for the 'error.MissingRoutesDir' error
this_bundler.configureRouter(true) catch {
this_bundler.options.routes.routes_enabled = false;
this_bundler.options.framework = null;
if (this_bundler.router) |*router| {
router.config.routes_enabled = false;
router.config.single_page_app_routing = false;
router.config.static_dir_enabled = false;
this_bundler.router = null;
}
this_bundler.options.node_modules_bundle = null;
this_bundler.options.node_modules_bundle_pretty_path = "";
this_bundler.options.node_modules_bundle_url = "";
};
if (ctx.debug.macros) |macros| {
this_bundler.options.macro_remap = macros;
}
// var env_loader = this_bundler.env;
if (ctx.debug.dump_environment_variables) {
this_bundler.dumpEnvironmentVariables();
return;
}
if (ctx.debug.dump_limits) {
fs.FileSystem.printLimits();
Global.exit(0);
return;
}
// var generated_server = false;
// if (this_bundler.options.framework) |*framework| {
// if (framework.toAPI(allocator, this_bundler.fs.top_level_dir) catch null) |_server_conf| {
// ServerBundleGeneratorThread.generate(
// log,
// env_loader,
// ctx,
// server_bundle_filepath,
// _server_conf,
// loaded_route_config,
// this_bundler.router,
// );
// generated_server = true;
// if (log.msgs.items.len > 0) {
// try log.printForLogLevel(Output.errorWriter());
// log.* = logger.Log.init(allocator);
// Output.flush();
// }
// }
// }
{
// Always generate the client-only bundle
// we can revisit this decision if people ask
const output_files = BundleV2.generate(
&this_bundler,
allocator,
&estimated_input_lines_of_code_,
ctx.debug.package_bundle_map,
bun.JSC.AnyEventLoop.init(ctx.allocator),
std.crypto.random.int(u64),
ctx.debug.hot_reload == .watch,
) catch |err| {
if (log.msgs.items.len > 0) {
try log.printForLogLevel(Output.errorWriter());
} else {
try Output.errorWriter().print("error: {s}", .{@errorName(err)});
}
Output.flush();
exitOrWatch(1, ctx.debug.hot_reload == .watch);
unreachable;
};
{
dump: {
defer Output.flush();
var writer = Output.errorWriter();
var output_dir = this_bundler.options.output_dir;
if (ctx.bundler_options.outfile.len > 0 and output_files.items.len == 1 and output_files.items[0].value == .buffer) {
output_dir = std.fs.path.dirname(ctx.bundler_options.outfile) orelse ".";
output_files.items[0].input.text = std.fs.path.basename(ctx.bundler_options.outfile);
}
if (output_dir.len == 0 and output_files.items.len == 1 and output_files.items[0].value == .buffer) {
try writer.writeAll(output_files.items[0].value.buffer);
break :dump;
}
const root_path = output_dir;
const root_dir = try std.fs.cwd().makeOpenPathIterable(root_path, .{});
var all_paths = try ctx.allocator.alloc([]const u8, output_files.items.len);
var max_path_len: usize = 0;
for (all_paths, output_files.items) |*dest, src| {
dest.* = src.input.text;
}
var from_path = resolve_path.longestCommonPath(all_paths);
for (output_files.items) |f| {
max_path_len = std.math.max(
std.math.max(from_path.len, f.input.text.len) + 2 - from_path.len,
max_path_len,
);
}
// On posix, file handles automatically close on process exit by the OS
// Closing files shows up in profiling.
// So don't do that unless we actually need to.
// const do_we_need_to_close = !FeatureFlags.store_file_descriptors or (@intCast(usize, root_dir.fd) + open_file_limit) < output_files.items.len;
var filepath_buf: [bun.MAX_PATH_BYTES]u8 = undefined;
filepath_buf[0] = '.';
filepath_buf[1] = '/';
for (output_files.items) |f| {
var rel_path: []const u8 = undefined;
switch (f.value) {
// easy mode: write the buffer
.buffer => |value| {
rel_path = f.input.text;
if (f.input.text.len > from_path.len) {
rel_path = resolve_path.relative(from_path, f.input.text);
if (std.fs.path.dirname(rel_path)) |parent| {
if (parent.len > root_path.len) {
try root_dir.dir.makePath(parent);
}
}
}
try root_dir.dir.writeFile(rel_path, value);
},
.move => |value| {
// const primary = f.input.text[from_path.len..];
// bun.copy(u8, filepath_buf[2..], primary);
// rel_path = filepath_buf[0 .. primary.len + 2];
rel_path = value.pathname;
// try f.moveTo(result.outbase, constStrToU8(rel_path), root_dir.fd);
},
.copy => |value| {
rel_path = value.pathname;
try f.copyTo(root_path, bun.constStrToU8(rel_path), root_dir.dir.fd);
},
.noop => {},
.pending => unreachable,
}
// Print summary
_ = try writer.write("\n");
const padding_count = 2 + (std.math.max(rel_path.len, max_path_len) - rel_path.len);
try writer.writeByteNTimes(' ', 2);
try writer.writeAll(rel_path);
try writer.writeByteNTimes(' ', padding_count);
const size = @intToFloat(f64, f.size) / 1000.0;
try std.fmt.formatFloatDecimal(size, .{ .precision = 2 }, writer);
try writer.writeAll(" KB\n");
}
}
}
try log.printForLogLevel(Output.errorWriter());
exitOrWatch(0, ctx.debug.hot_reload == .watch);
}
}
};
fn exitOrWatch(code: u8, watch: bool) void {
if (watch) {
// the watcher thread will exit the process
std.time.sleep(std.math.maxInt(u64) - 1);
}
Global.exit(code);
}