Files
bun.sh/src/output.zig
2022-03-10 06:55:43 -08:00

548 lines
17 KiB
Zig

const Output = @This();
const std = @import("std");
const Environment = @import("./env.zig");
const string = @import("./global.zig").string;
const root = @import("root");
const strings = @import("./global.zig").strings;
const StringTypes = @import("./global.zig").StringTypes;
const Global = @import("./global.zig").Global;
const ComptimeStringMap = @import("./global.zig").ComptimeStringMap;
const use_mimalloc = @import("./global.zig").use_mimalloc;
// These are threadlocal so we don't have stdout/stderr writing on top of each other
threadlocal var source: Source = undefined;
threadlocal var source_set: bool = false;
// These are not threadlocal so we avoid opening stdout/stderr for every thread
var stderr_stream: Source.StreamType = undefined;
var stdout_stream: Source.StreamType = undefined;
var stdout_stream_set = false;
pub var terminal_size: std.os.winsize = .{
.ws_row = 0,
.ws_col = 0,
.ws_xpixel = 0,
.ws_ypixel = 0,
};
pub const Source = struct {
pub const StreamType: type = brk: {
if (Environment.isWasm) {
break :brk std.io.FixedBufferStream([]u8);
} else {
break :brk std.fs.File;
// var stdout = std.io.getStdOut();
// return @TypeOf(std.io.bufferedWriter(stdout.writer()));
}
};
pub const BufferedStream: type = struct {
fn getBufferedStream() type {
if (comptime Environment.isWasm)
return StreamType;
return std.io.BufferedWriter(4096, @TypeOf(StreamType.writer(undefined)));
}
}.getBufferedStream();
buffered_stream: BufferedStream,
buffered_error_stream: BufferedStream,
stream: StreamType,
error_stream: StreamType,
out_buffer: []u8 = &([_]u8{}),
err_buffer: []u8 = &([_]u8{}),
pub fn init(
stream: StreamType,
err: StreamType,
) Source {
if (comptime Environment.isDebug) {
if (comptime use_mimalloc) {
if (!source_set) {
const Mimalloc = @import("./allocators/mimalloc.zig");
Mimalloc.mi_option_set(.show_errors, 1);
}
}
}
source_set = true;
return Source{
.stream = stream,
.error_stream = err,
.buffered_stream = if (Environment.isNative)
BufferedStream{ .unbuffered_writer = stream.writer() }
else
stream,
.buffered_error_stream = if (Environment.isNative)
BufferedStream{ .unbuffered_writer = err.writer() }
else
err,
};
}
pub fn configureThread() void {
if (source_set) return;
std.debug.assert(stdout_stream_set);
source = Source.init(stdout_stream, stderr_stream);
}
pub fn configureNamedThread(_: std.Thread, name: StringTypes.stringZ) void {
Global.setThreadName(name);
configureThread();
}
fn isForceColor() ?bool {
if (std.os.getenvZ("NO_COLOR") != null) return false;
const force_color_str = std.os.getenvZ("FORCE_COLOR") orelse return null;
return force_color_str.len == 0 or
strings.eqlComptime(force_color_str, "TRUE") or
strings.eqlComptime(force_color_str, "ON") or
strings.eqlComptime(force_color_str, "YES") or
strings.eqlComptime(force_color_str, "1") or
strings.eqlComptime(force_color_str, " ");
}
fn isColorTerminal() bool {
if (isForceColor()) |val| return val;
if (std.os.getenvZ("COLOR_TERM")) |color_term| return !strings.eqlComptime(color_term, "0");
if (std.os.getenvZ("TERM")) |term| {
if (strings.eqlComptime(term, "dumb")) return false;
return true;
}
return false;
}
pub fn set(_source: *Source) void {
source = _source.*;
source_set = true;
if (!stdout_stream_set) {
stdout_stream_set = true;
if (comptime Environment.isNative) {
var is_color_terminal: ?bool = null;
if (_source.stream.isTty()) {
stdout_descriptor_type = OutputStreamDescriptor.terminal;
is_color_terminal = is_color_terminal orelse isColorTerminal();
enable_ansi_colors_stdout = is_color_terminal.?;
} else if (isForceColor()) |val| {
enable_ansi_colors_stdout = val;
} else {
enable_ansi_colors_stdout = false;
}
if (_source.error_stream.isTty()) {
stderr_descriptor_type = OutputStreamDescriptor.terminal;
is_color_terminal = is_color_terminal orelse isColorTerminal();
enable_ansi_colors_stderr = is_color_terminal.?;
} else if (isForceColor()) |val| {
enable_ansi_colors_stderr = val;
} else {
enable_ansi_colors_stderr = false;
}
enable_ansi_colors = enable_ansi_colors_stderr or enable_ansi_colors_stdout;
}
stdout_stream = _source.stream;
stderr_stream = _source.error_stream;
}
}
};
pub const OutputStreamDescriptor = enum {
unknown,
// file,
// pipe,
terminal,
};
pub var enable_ansi_colors = Environment.isNative;
pub var enable_ansi_colors_stderr = Environment.isNative;
pub var enable_ansi_colors_stdout = Environment.isNative;
pub var enable_buffering = Environment.isNative;
pub var stderr_descriptor_type = OutputStreamDescriptor.unknown;
pub var stdout_descriptor_type = OutputStreamDescriptor.unknown;
pub inline fn isEmojiEnabled() bool {
return enable_ansi_colors and !Environment.isWindows;
}
var _source_for_test: if (Environment.isTest) Output.Source else void = undefined;
var _source_for_test_set = false;
pub fn initTest() void {
if (_source_for_test_set) return;
_source_for_test_set = true;
var in = std.io.getStdErr();
var out = std.io.getStdOut();
_source_for_test = Output.Source.init(out, in);
Output.Source.set(&_source_for_test);
}
pub fn enableBuffering() void {
if (comptime Environment.isNative) enable_buffering = true;
}
pub fn disableBuffering() void {
Output.flush();
if (comptime Environment.isNative) enable_buffering = false;
}
pub fn panic(comptime fmt: string, args: anytype) noreturn {
if (Output.isEmojiEnabled()) {
std.debug.panic(comptime Output.prettyFmt(fmt, true), args);
} else {
std.debug.panic(comptime Output.prettyFmt(fmt, false), args);
}
}
pub const WriterType: type = @TypeOf(Source.StreamType.writer(undefined));
pub fn errorWriter() WriterType {
std.debug.assert(source_set);
return source.error_stream.writer();
}
pub fn errorStream() Source.StreamType {
std.debug.assert(source_set);
return source.error_stream;
}
pub fn writer() WriterType {
std.debug.assert(source_set);
return source.stream.writer();
}
pub fn resetTerminal() void {
if (!enable_ansi_colors) {
return;
}
if (enable_ansi_colors_stderr) {
_ = source.error_stream.write("\x1b[H\x1b[2J") catch 0;
} else {
_ = source.stream.write("\x1b[H\x1b[2J") catch 0;
}
}
pub fn flush() void {
if (Environment.isNative and source_set) {
source.buffered_stream.flush() catch {};
source.buffered_error_stream.flush() catch {};
// source.stream.flush() catch {};
// source.error_stream.flush() catch {};
}
}
inline fn printElapsedToWithCtx(elapsed: f64, comptime printerFn: anytype, comptime has_ctx: bool, ctx: anytype) void {
switch (elapsed) {
0...1500 => {
const fmt = "<r><d>[<b>{d:>.2}ms<r><d>]<r>";
const args = .{elapsed};
if (comptime has_ctx) {
printerFn(ctx, fmt, args);
} else {
printerFn(fmt, args);
}
},
else => {
const fmt = "<r><d>[<b>{d:>.2}s<r><d>]<r>";
const args = .{elapsed / 1000.0};
if (comptime has_ctx) {
printerFn(ctx, fmt, args);
} else {
printerFn(fmt, args);
}
},
}
}
pub fn printElapsedTo(elapsed: f64, comptime printerFn: anytype, ctx: anytype) void {
printElapsedToWithCtx(elapsed, printerFn, true, ctx);
}
pub fn printElapsed(elapsed: f64) void {
printElapsedToWithCtx(elapsed, Output.prettyError, false, void{});
}
pub fn printElapsedStdout(elapsed: f64) void {
printElapsedToWithCtx(elapsed, Output.pretty, false, void{});
}
pub fn printStartEnd(start: i128, end: i128) void {
const elapsed = @divTrunc(end - start, @as(i128, std.time.ns_per_ms));
printElapsed(@intToFloat(f64, elapsed));
}
pub fn printStartEndStdout(start: i128, end: i128) void {
const elapsed = @divTrunc(end - start, @as(i128, std.time.ns_per_ms));
printElapsedStdout(@intToFloat(f64, elapsed));
}
pub fn printTimer(timer: *std.time.Timer) void {
const elapsed = @divTrunc(timer.read(), @as(u64, std.time.ns_per_ms));
printElapsed(@intToFloat(f64, elapsed));
}
pub fn printErrorable(comptime fmt: string, args: anytype) !void {
if (comptime Environment.isWasm) {
try source.stream.seekTo(0);
try source.stream.writer().print(fmt, args);
root.console_error(root.Uint8Array.fromSlice(source.stream.buffer[0..source.stream.pos]));
} else {
std.fmt.format(source.stream.writer(), fmt, args) catch unreachable;
}
}
pub fn println(comptime fmt: string, args: anytype) void {
if (fmt[fmt.len - 1] != '\n') {
return print(fmt ++ "\n", args);
}
return print(fmt, args);
}
pub inline fn debug(comptime fmt: string, args: anytype) void {
if (comptime Environment.isRelease) return;
return prettyErrorln("\n<d>DEBUG:<r> " ++ fmt, args);
}
pub fn _debug(comptime fmt: string, args: anytype) void {
std.debug.assert(source_set);
if (fmt[fmt.len - 1] != '\n') {
return print(fmt ++ "\n", args);
}
return print(fmt, args);
}
pub fn print(comptime fmt: string, args: anytype) void {
if (comptime Environment.isWasm) {
source.stream.pos = 0;
std.fmt.format(source.stream.writer(), fmt, args) catch unreachable;
root.console_log(root.Uint8Array.fromSlice(source.stream.buffer[0..source.stream.pos]));
} else {
std.debug.assert(source_set);
if (enable_buffering) {
std.fmt.format(source.buffered_stream.writer(), fmt, args) catch unreachable;
} else {
std.fmt.format(writer(), fmt, args) catch unreachable;
}
}
}
// Valid colors:
// <black>
// <blue>
// <cyan>
// <green>
// <magenta>
// <red>
// <white>
// <yellow>
// <b> - bold
// <d> - dim
// </r> - reset
// <r> - reset
pub const ED = "\x1b[";
pub const color_map = ComptimeStringMap(string, .{
&.{ "black", ED ++ "30m" },
&.{ "blue", ED ++ "34m" },
&.{ "b", ED ++ "1m" },
&.{ "d", ED ++ "2m" },
&.{ "i", ED ++ "3m" },
&.{ "cyan", ED ++ "36m" },
&.{ "green", ED ++ "32m" },
&.{ "magenta", ED ++ "35m" },
&.{ "red", ED ++ "31m" },
&.{ "white", ED ++ "37m" },
&.{ "yellow", ED ++ "33m" },
});
pub const RESET = "\x1b[0m";
pub fn prettyFmt(comptime fmt: string, comptime is_enabled: bool) string {
comptime var new_fmt: [fmt.len * 4]u8 = undefined;
comptime var new_fmt_i: usize = 0;
@setEvalBranchQuota(9999);
comptime var i: usize = 0;
comptime while (i < fmt.len) {
const c = fmt[i];
switch (c) {
'\\' => {
i += 1;
if (fmt.len < i) {
switch (fmt[i]) {
'<', '>' => {
i += 1;
},
else => {
new_fmt[new_fmt_i] = '\\';
new_fmt_i += 1;
new_fmt[new_fmt_i] = fmt[i];
new_fmt_i += 1;
},
}
}
},
'>' => {
i += 1;
},
'{' => {
while (fmt.len > i and fmt[i] != '}') {
new_fmt[new_fmt_i] = fmt[i];
new_fmt_i += 1;
i += 1;
}
},
'<' => {
i += 1;
var is_reset = fmt[i] == '/';
if (is_reset) i += 1;
var start: usize = i;
while (i < fmt.len and fmt[i] != '>') {
i += 1;
}
const color_name = fmt[start..i];
const color_str = color_picker: {
if (color_map.get(color_name)) |color_name_literal| {
break :color_picker color_name_literal;
} else if (std.mem.eql(u8, color_name, "r")) {
is_reset = true;
break :color_picker "";
} else {
@compileError("Invalid color name passed: " ++ color_name);
}
};
var orig = new_fmt_i;
if (is_enabled) {
if (!is_reset) {
orig = new_fmt_i;
new_fmt_i += color_str.len;
std.mem.copy(u8, new_fmt[orig..new_fmt_i], color_str);
}
if (is_reset) {
const reset_sequence = RESET;
orig = new_fmt_i;
new_fmt_i += reset_sequence.len;
std.mem.copy(u8, new_fmt[orig..new_fmt_i], reset_sequence);
}
}
},
else => {
new_fmt[new_fmt_i] = fmt[i];
new_fmt_i += 1;
i += 1;
},
}
};
return comptime new_fmt[0..new_fmt_i];
}
pub fn prettyWithPrinter(comptime fmt: string, args: anytype, comptime printer: anytype, comptime l: Level) void {
if (comptime l == .Warn) {
if (level == .Error) return;
}
if (if (comptime l == Level.stdout) enable_ansi_colors_stdout else enable_ansi_colors_stderr) {
printer(comptime prettyFmt(fmt, true), args);
} else {
printer(comptime prettyFmt(fmt, false), args);
}
}
pub fn prettyWithPrinterFn(comptime fmt: string, args: anytype, comptime printFn: anytype, ctx: anytype) void {
if (enable_ansi_colors) {
printFn(ctx, comptime prettyFmt(fmt, true), args);
} else {
printFn(ctx, comptime prettyFmt(fmt, false), args);
}
}
pub fn pretty(comptime fmt: string, args: anytype) void {
prettyWithPrinter(fmt, args, print, .stdout);
}
pub fn prettyln(comptime fmt: string, args: anytype) void {
if (enable_ansi_colors) {
println(comptime prettyFmt(fmt, true), args);
} else {
println(comptime prettyFmt(fmt, false), args);
}
}
pub fn printErrorln(comptime fmt: string, args: anytype) void {
if (fmt[fmt.len - 1] != '\n') {
return printError(fmt ++ "\n", args);
}
return printError(fmt, args);
}
pub fn prettyError(comptime fmt: string, args: anytype) void {
prettyWithPrinter(fmt, args, printError, .Error);
}
pub fn prettyErrorln(comptime fmt: string, args: anytype) void {
if (fmt[fmt.len - 1] != '\n') {
return prettyWithPrinter(
fmt ++ "\n",
args,
printError,
.Error,
);
}
return prettyWithPrinter(
fmt,
args,
printError,
.Error,
);
}
pub const Level = enum(u8) {
Warn,
Error,
stdout,
};
pub var level = if (Environment.isDebug) Level.Warn else Level.Error;
pub fn prettyWarn(comptime fmt: string, args: anytype) void {
prettyWithPrinter(fmt, args, printError, .Warn);
}
pub fn prettyWarnln(comptime fmt: string, args: anytype) void {
if (fmt[fmt.len - 1] != '\n') {
return prettyWithPrinter(fmt ++ "\n", args, printError, .Warn);
}
return prettyWithPrinter(fmt, args, printError, .Warn);
}
pub fn errorLn(comptime fmt: string, args: anytype) void {
return printErrorln(fmt, args);
}
pub fn printError(comptime fmt: string, args: anytype) void {
if (comptime Environment.isWasm) {
source.error_stream.seekTo(0) catch return;
source.error_stream.writer().print(fmt, args) catch unreachable;
root.console_error(root.Uint8Array.fromSlice(source.err_buffer[0..source.error_stream.pos]));
} else {
if (enable_buffering)
std.fmt.format(source.buffered_error_stream.writer(), fmt, args) catch {}
else
std.fmt.format(source.error_stream.writer(), fmt, args) catch {};
}
}