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cli.zig
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const bun = @import("root").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 constStrToU8 = bun.constStrToU8;
const FeatureFlags = bun.FeatureFlags;
const C = bun.C;
const root = @import("root");
const std = @import("std");
const lex = bun.js_lexer;
const logger = @import("root").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 clap = @import("root").bun.clap;
const BunJS = @import("./bun_js.zig");
const Install = @import("./install/install.zig");
const bundler = bun.bundler;
const DotEnv = @import("./env_loader.zig");
const fs = @import("fs.zig");
const Router = @import("./router.zig");
const NodeModuleBundle = @import("./node_module_bundle.zig").NodeModuleBundle;
const MacroMap = @import("./resolver/package_json.zig").MacroMap;
const TestCommand = @import("./cli/test_command.zig").TestCommand;
const Reporter = @import("./report.zig");
pub var start_time: i128 = undefined;
const Bunfig = @import("./bunfig.zig").Bunfig;
pub const Cli = struct {
var wait_group: sync.WaitGroup = undefined;
var log_: logger.Log = undefined;
pub fn startTransform(_: std.mem.Allocator, _: Api.TransformOptions, _: *logger.Log) anyerror!void {}
pub fn start(allocator: std.mem.Allocator, _: anytype, _: anytype, comptime MainPanicHandler: type) void {
start_time = std.time.nanoTimestamp();
log_ = logger.Log.init(allocator);
var log = &log_;
var panicker = MainPanicHandler.init(log);
MainPanicHandler.Singleton = &panicker;
Command.start(allocator, log) catch |err| {
switch (err) {
error.MissingEntryPoint => {
Output.prettyErrorln("<r><red>MissingEntryPoint<r> what do you want to build?\n\n<d>Example:\n\n<r> <b><cyan>bun build ./src/index.ts<r>\n\n <b><cyan>bun build --minify --outdir=out ./index.jsx ./lib/worker.ts<r>\n", .{});
Global.exit(1);
},
else => {
// Always dump the logs
if (Output.enable_ansi_colors_stderr) {
log.printForLogLevelWithEnableAnsiColors(Output.errorWriter(), true) catch {};
} else {
log.printForLogLevelWithEnableAnsiColors(Output.errorWriter(), false) catch {};
}
Reporter.globalError(err, @errorReturnTrace());
},
}
};
}
pub var cmd: ?Command.Tag = null;
};
const LoaderMatcher = strings.ExactSizeMatcher(4);
const ColonListType = @import("./cli/colon_list_type.zig").ColonListType;
pub const LoaderColonList = ColonListType(Api.Loader, Arguments.loader_resolver);
pub const DefineColonList = ColonListType(string, Arguments.noop_resolver);
fn invalidTarget(diag: *clap.Diagnostic, _target: []const u8) noreturn {
@setCold(true);
diag.name.long = "--target";
diag.arg = _target;
diag.report(Output.errorWriter(), error.InvalidTarget) catch {};
std.process.exit(1);
}
pub const Arguments = struct {
pub fn loader_resolver(in: string) !Api.Loader {
const option_loader = options.Loader.fromString(in) orelse return error.InvalidLoader;
return option_loader.toAPI();
}
pub fn noop_resolver(in: string) !string {
return in;
}
pub fn fileReadError(err: anyerror, stderr: anytype, filename: string, kind: string) noreturn {
stderr.writer().print("Error reading file \"{s}\" for {s}: {s}", .{ filename, kind, @errorName(err) }) catch {};
std.process.exit(1);
}
pub fn readFile(
allocator: std.mem.Allocator,
cwd: string,
filename: string,
) ![]u8 {
var paths = [_]string{ cwd, filename };
const outpath = try std.fs.path.resolve(allocator, &paths);
defer allocator.free(outpath);
var file = try std.fs.openFileAbsolute(outpath, std.fs.File.OpenFlags{ .mode = .read_only });
defer file.close();
const stats = try file.stat();
return try file.readToEndAlloc(allocator, stats.size);
}
pub fn resolve_jsx_runtime(str: string) !Api.JsxRuntime {
if (strings.eqlComptime(str, "automatic")) {
return Api.JsxRuntime.automatic;
} else if (strings.eqlComptime(str, "fallback") or strings.eqlComptime(str, "classic")) {
return Api.JsxRuntime.classic;
} else if (strings.eqlComptime(str, "solid")) {
return Api.JsxRuntime.solid;
} else {
return error.InvalidJSXRuntime;
}
}
pub const ParamType = clap.Param(clap.Help);
const shared_public_params = [_]ParamType{
clap.parseParam("-h, --help Display this help and exit.") catch unreachable,
clap.parseParam("-b, --bun Force a script or package to use Bun.js instead of Node.js (via symlinking node)") catch unreachable,
clap.parseParam("--cwd <STR> Absolute path to resolve files & entry points from. This just changes the process' cwd.") catch unreachable,
clap.parseParam("-c, --config <PATH>? Config file to load bun from (e.g. -c bunfig.toml") catch unreachable,
clap.parseParam("--extension-order <STR>... Defaults to: .tsx,.ts,.jsx,.js,.json ") catch unreachable,
clap.parseParam("--jsx-factory <STR> Changes the function called when compiling JSX elements using the classic JSX runtime") catch unreachable,
clap.parseParam("--jsx-fragment <STR> Changes the function called when compiling JSX fragments") catch unreachable,
clap.parseParam("--jsx-import-source <STR> Declares the module specifier to be used for importing the jsx and jsxs factory functions. Default: \"react\"") catch unreachable,
clap.parseParam("--jsx-runtime <STR> \"automatic\" (default) or \"classic\"") catch unreachable,
clap.parseParam("-r, --preload <STR>... Import a module before other modules are loaded") catch unreachable,
clap.parseParam("--main-fields <STR>... Main fields to lookup in package.json. Defaults to --target dependent") catch unreachable,
clap.parseParam("--no-summary Don't print a summary (when generating .bun)") catch unreachable,
clap.parseParam("-v, --version Print version and exit") catch unreachable,
clap.parseParam("--tsconfig-override <STR> Load tsconfig from path instead of cwd/tsconfig.json") catch unreachable,
clap.parseParam("-d, --define <STR>... Substitute K:V while parsing, e.g. --define process.env.NODE_ENV:\"development\". Values are parsed as JSON.") catch unreachable,
clap.parseParam("-e, --external <STR>... Exclude module from transpilation (can use * wildcards). ex: -e react") catch unreachable,
clap.parseParam("-l, --loader <STR>... Parse files with .ext:loader, e.g. --loader .js:jsx. Valid loaders: js, jsx, ts, tsx, json, toml, text, file, wasm, napi") catch unreachable,
clap.parseParam("-u, --origin <STR> Rewrite import URLs to start with --origin. Default: \"\"") catch unreachable,
clap.parseParam("-p, --port <STR> Port to serve bun's dev server on. Default: \"3000\"") catch unreachable,
clap.parseParam("--minify Minify (experimental)") catch unreachable,
clap.parseParam("--minify-syntax Minify syntax and inline data (experimental)") catch unreachable,
clap.parseParam("--minify-whitespace Minify whitespace (experimental)") catch unreachable,
clap.parseParam("--minify-identifiers Minify identifiers") catch unreachable,
clap.parseParam("--target <STR> The intended execution environment for the bundle. \"browser\", \"bun\" or \"node\"") catch unreachable,
clap.parseParam("<POS>... ") catch unreachable,
};
// note: we are keeping --port and --origin as it can be reused for bun
// build and elsewhere
pub const not_bun_dev_flags = [_]ParamType{
clap.parseParam("--hot Enable auto reload in bun's JavaScript runtime") catch unreachable,
clap.parseParam("--watch Automatically restart bun's JavaScript runtime on file change") catch unreachable,
clap.parseParam("--no-install Disable auto install in bun's JavaScript runtime") catch unreachable,
clap.parseParam("-i Automatically install dependencies and use global cache in bun's runtime, equivalent to --install=fallback") catch unreachable,
clap.parseParam("--install <STR> Install dependencies automatically when no node_modules are present, default: \"auto\". \"force\" to ignore node_modules, fallback to install any missing") catch unreachable,
clap.parseParam("--prefer-offline Skip staleness checks for packages in bun's JavaScript runtime and resolve from disk") catch unreachable,
clap.parseParam("--prefer-latest Use the latest matching versions of packages in bun's JavaScript runtime, always checking npm") catch unreachable,
clap.parseParam("--silent Don't repeat the command for bun run") catch unreachable,
};
const public_params = shared_public_params ++ not_bun_dev_flags;
const debug_params = [_]ParamType{
clap.parseParam("--dump-environment-variables Dump environment variables from .env and process as JSON and quit. Useful for debugging") catch unreachable,
clap.parseParam("--dump-limits Dump system limits. Useful for debugging") catch unreachable,
};
pub const dev_params = [_]ParamType{
clap.parseParam("--disable-bun.js Disable bun.js from loading in the dev server") catch unreachable,
clap.parseParam("--disable-react-fast-refresh Disable React Fast Refresh") catch unreachable,
clap.parseParam("--bunfile <STR> Use a .bun file (default: node_modules.bun)") catch unreachable,
clap.parseParam("--server-bunfile <STR> Use a .server.bun file (default: node_modules.server.bun)") catch unreachable,
clap.parseParam("--public-dir <STR> Top-level directory for .html files, fonts or anything external. Defaults to \"<cwd>/public\", to match create-react-app and Next.js") catch unreachable,
clap.parseParam("--disable-hmr Disable Hot Module Reloading (disables fast refresh too) in bun dev") catch unreachable,
clap.parseParam("--use <STR> Choose a framework, e.g. \"--use next\". It checks first for a package named \"bun-framework-packagename\" and then \"packagename\".") catch unreachable,
} ++ shared_public_params ++ debug_params;
pub const params = public_params ++ debug_params;
const build_only_params = [_]ParamType{
clap.parseParam("--format <STR> Specifies the module format to build to. Only esm is supported.") catch unreachable,
clap.parseParam("--outdir <STR> Default to \"dist\" if multiple files") catch unreachable,
clap.parseParam("--outfile <STR> Write to a file") catch unreachable,
clap.parseParam("--root <STR> Root directory used for multiple entry points") catch unreachable,
clap.parseParam("--splitting Enable code splitting") catch unreachable,
clap.parseParam("--public-path <STR> A prefix to be appended to any import paths in bundled code") catch unreachable,
clap.parseParam("--sourcemap <STR>? Build with sourcemaps - 'inline', 'external', or 'none'") catch unreachable,
clap.parseParam("--entry-naming <STR> Customize entry point filenames. Defaults to \"[dir]/[name].[ext]\"") catch unreachable,
clap.parseParam("--chunk-naming <STR> Customize chunk filenames. Defaults to \"[name]-[hash].[ext]\"") catch unreachable,
clap.parseParam("--asset-naming <STR> Customize asset filenames. Defaults to \"[name]-[hash].[ext]\"") catch unreachable,
clap.parseParam("--server-components Enable React Server Components (experimental)") catch unreachable,
clap.parseParam("--no-bundle Transpile file only, do not bundle") catch unreachable,
clap.parseParam("--compile Generate a standalone Bun executable containing your bundled code") catch unreachable,
};
// TODO: update test completions
const test_only_params = [_]ParamType{
clap.parseParam("--update-snapshots Update snapshot files") catch unreachable,
clap.parseParam("--rerun-each <NUMBER> Re-run each test file <NUMBER> times, helps catch certain bugs") catch unreachable,
};
const build_params_public = public_params ++ build_only_params;
pub const build_params = build_params_public ++ debug_params;
pub const test_params = params ++ test_only_params;
fn printVersionAndExit() noreturn {
@setCold(true);
Output.writer().writeAll(Global.package_json_version ++ "\n") catch {};
Global.exit(0);
}
pub fn loadConfigPath(allocator: std.mem.Allocator, auto_loaded: bool, config_path: [:0]const u8, ctx: *Command.Context, comptime cmd: Command.Tag) !void {
var config_file = std.fs.File{
.handle = std.os.openZ(config_path, std.os.O.RDONLY, 0) catch |err| {
if (auto_loaded) return;
Output.prettyErrorln("<r><red>error<r>: {s} opening config \"{s}\"", .{
@errorName(err),
config_path,
});
Global.exit(1);
},
};
defer config_file.close();
var contents = config_file.readToEndAlloc(allocator, std.math.maxInt(usize)) catch |err| {
if (auto_loaded) return;
Output.prettyErrorln("<r><red>error<r>: {s} reading config \"{s}\"", .{
@errorName(err),
config_path,
});
Global.exit(1);
};
js_ast.Stmt.Data.Store.create(allocator);
js_ast.Expr.Data.Store.create(allocator);
defer {
js_ast.Stmt.Data.Store.reset();
js_ast.Expr.Data.Store.reset();
}
var original_level = ctx.log.level;
defer {
ctx.log.level = original_level;
}
ctx.log.level = logger.Log.Level.warn;
try Bunfig.parse(allocator, logger.Source.initPathString(bun.asByteSlice(config_path), contents), ctx, cmd);
}
fn getHomeConfigPath(buf: *[bun.MAX_PATH_BYTES]u8) ?[:0]const u8 {
if (bun.getenvZ("XDG_CONFIG_HOME") orelse bun.getenvZ("HOME")) |data_dir| {
var paths = [_]string{".bunfig.toml"};
return resolve_path.joinAbsStringBufZ(data_dir, buf, &paths, .auto);
}
return null;
}
pub fn loadConfig(allocator: std.mem.Allocator, user_config_path_: ?string, ctx: *Command.Context, comptime cmd: Command.Tag) !void {
var config_buf: [bun.MAX_PATH_BYTES]u8 = undefined;
if (comptime cmd.readGlobalConfig()) {
if (!ctx.has_loaded_global_config) {
ctx.has_loaded_global_config = true;
if (getHomeConfigPath(&config_buf)) |path| {
try loadConfigPath(allocator, true, path, ctx, comptime cmd);
}
}
}
var config_path_: []const u8 = user_config_path_ orelse "";
var auto_loaded: bool = false;
if (config_path_.len == 0 and (user_config_path_ != null or
Command.Tag.always_loads_config.get(cmd) or
(cmd == .AutoCommand and
// "bun"
(ctx.positionals.len == 0 or
// "bun file.js"
ctx.positionals.len > 0 and options.defaultLoaders.has(std.fs.path.extension(ctx.positionals[0]))))))
{
config_path_ = "bunfig.toml";
auto_loaded = true;
}
if (config_path_.len == 0) {
return;
}
defer ctx.debug.loaded_bunfig = true;
var config_path: [:0]u8 = undefined;
if (config_path_[0] == '/') {
@memcpy(&config_buf, config_path_.ptr, config_path_.len);
config_buf[config_path_.len] = 0;
config_path = config_buf[0..config_path_.len :0];
} else {
if (ctx.args.absolute_working_dir == null) {
var secondbuf: [bun.MAX_PATH_BYTES]u8 = undefined;
var cwd = std.os.getcwd(&secondbuf) catch return;
ctx.args.absolute_working_dir = try allocator.dupe(u8, cwd);
}
var parts = [_]string{ ctx.args.absolute_working_dir.?, config_path_ };
config_path_ = resolve_path.joinAbsStringBuf(
ctx.args.absolute_working_dir.?,
&config_buf,
&parts,
.auto,
);
config_buf[config_path_.len] = 0;
config_path = config_buf[0..config_path_.len :0];
}
try loadConfigPath(allocator, auto_loaded, config_path, ctx, comptime cmd);
}
pub fn loadConfigWithCmdArgs(
comptime cmd: Command.Tag,
allocator: std.mem.Allocator,
args: clap.Args(clap.Help, cmd.params()),
ctx: *Command.Context,
) !void {
return try loadConfig(allocator, args.option("--config"), ctx, comptime cmd);
}
pub fn parse(allocator: std.mem.Allocator, ctx: *Command.Context, comptime cmd: Command.Tag) !Api.TransformOptions {
var diag = clap.Diagnostic{};
const params_to_use = comptime cmd.params();
var args = clap.parse(clap.Help, params_to_use, .{
.diagnostic = &diag,
.allocator = allocator,
.stop_after_positional_at = if (cmd == .RunCommand) 2 else if (cmd == .AutoCommand)
1
else
0,
}) catch |err| {
// Report useful error and exit
clap.help(Output.errorWriter(), params_to_use) catch {};
Output.errorWriter().writeAll("\n") catch {};
diag.report(Output.errorWriter(), err) catch {};
Global.exit(1);
};
if (args.flag("--version")) {
printVersionAndExit();
}
var cwd: []u8 = undefined;
if (args.option("--cwd")) |cwd_| {
cwd = brk: {
var outbuf: [bun.MAX_PATH_BYTES]u8 = undefined;
const out = std.os.realpath(cwd_, &outbuf) catch |err| {
Output.prettyErrorln("error resolving --cwd: {s}", .{@errorName(err)});
Global.exit(1);
};
break :brk try allocator.dupe(u8, out);
};
} else {
cwd = try std.process.getCwdAlloc(allocator);
}
if (cmd == .TestCommand) {
ctx.test_options.update_snapshots = args.flag("--update-snapshots");
if (args.option("--rerun-each")) |repeat_count| {
if (repeat_count.len > 0) {
ctx.test_options.repeat_count = std.fmt.parseInt(u32, repeat_count, 10) catch |e| {
Output.prettyErrorln("--rerun-each expects a number: {s}", .{@errorName(e)});
Global.exit(1);
};
}
}
}
ctx.args.absolute_working_dir = cwd;
ctx.positionals = args.positionals();
if (comptime Command.Tag.loads_config.get(cmd)) {
try loadConfigWithCmdArgs(cmd, allocator, args, ctx);
}
var opts: Api.TransformOptions = ctx.args;
var defines_tuple = try DefineColonList.resolve(allocator, args.options("--define"));
if (defines_tuple.keys.len > 0) {
opts.define = .{
.keys = defines_tuple.keys,
.values = defines_tuple.values,
};
}
var loader_tuple = try LoaderColonList.resolve(allocator, args.options("--loader"));
if (loader_tuple.keys.len > 0) {
opts.loaders = .{
.extensions = loader_tuple.keys,
.loaders = loader_tuple.values,
};
}
if (args.options("--external").len > 0) {
var externals = try allocator.alloc([]u8, args.options("--external").len);
for (args.options("--external"), 0..) |external, i| {
externals[i] = constStrToU8(external);
}
opts.external = externals;
}
opts.tsconfig_override = if (args.option("--tsconfig-override")) |ts|
(Arguments.readFile(allocator, cwd, ts) catch |err| fileReadError(err, Output.errorStream(), ts, "tsconfig.json"))
else
null;
if (args.option("--origin")) |origin| {
opts.origin = origin;
}
if (args.option("--port")) |port_str| {
opts.port = std.fmt.parseInt(u16, port_str, 10) catch return error.InvalidPort;
}
opts.serve = cmd == .DevCommand;
opts.main_fields = args.options("--main-fields");
// we never actually supported inject.
// opts.inject = args.options("--inject");
opts.extension_order = args.options("--extension-order");
ctx.passthrough = args.remaining();
opts.no_summary = args.flag("--no-summary");
if (cmd != .DevCommand) {
const preloads = args.options("--preload");
if (ctx.preloads.len > 0 and preloads.len > 0) {
var all = std.ArrayList(string).initCapacity(ctx.allocator, ctx.preloads.len + preloads.len) catch unreachable;
all.appendSliceAssumeCapacity(ctx.preloads);
all.appendSliceAssumeCapacity(preloads);
ctx.preloads = all.items;
} else if (preloads.len > 0) {
ctx.preloads = preloads;
}
}
if (opts.port != null and opts.origin == null) {
opts.origin = try std.fmt.allocPrint(allocator, "http://localhost:{d}/", .{opts.port.?});
}
const print_help = args.flag("--help");
if (print_help) {
const params_len = if (cmd == .BuildCommand) build_params_public.len else public_params.len;
clap.help(Output.writer(), params_to_use[0..params_len]) catch {};
Output.prettyln("\n-------\n\n", .{});
Output.flush();
HelpCommand.printWithReason(.explicit);
Global.exit(0);
}
ctx.debug.dump_environment_variables = args.flag("--dump-environment-variables");
ctx.debug.dump_limits = args.flag("--dump-limits");
// var output_dir = args.option("--outdir");
var output_dir: ?string = null;
const production = false;
var output_file: ?string = null;
const minify_flag = args.flag("--minify");
ctx.bundler_options.minify_syntax = minify_flag or args.flag("--minify-syntax");
ctx.bundler_options.minify_whitespace = minify_flag or args.flag("--minify-whitespace");
ctx.bundler_options.minify_identifiers = minify_flag or args.flag("--minify-identifiers");
if (cmd == .BuildCommand) {
ctx.bundler_options.transform_only = args.flag("--no-bundle");
if (args.flag("--compile")) {
ctx.bundler_options.compile = true;
}
if (args.option("--outdir")) |outdir| {
if (outdir.len > 0) {
ctx.bundler_options.outdir = outdir;
}
} else if (args.option("--outfile")) |outfile| {
if (outfile.len > 0) {
ctx.bundler_options.outfile = outfile;
}
}
if (args.option("--root")) |root_dir| {
if (root_dir.len > 0) {
ctx.bundler_options.root_dir = root_dir;
}
}
if (args.option("--format")) |format_str| {
const format = options.Format.fromString(format_str) orelse {
Output.prettyErrorln("<r><red>error<r>: Invalid format - must be esm, cjs, or iife", .{});
Global.crash();
};
switch (format) {
.esm => {},
else => {
Output.prettyErrorln("<r><red>error<r>: Formats besides 'esm' are not implemented", .{});
Global.crash();
},
}
}
if (args.flag("--splitting")) {
ctx.bundler_options.code_splitting = true;
}
if (args.option("--entry-naming")) |entry_naming| {
ctx.bundler_options.entry_naming = try strings.concat(allocator, &.{ "./", entry_naming });
}
if (args.option("--chunk-naming")) |chunk_naming| {
ctx.bundler_options.chunk_naming = try strings.concat(allocator, &.{ "./", chunk_naming });
}
if (args.option("--asset-naming")) |asset_naming| {
ctx.bundler_options.asset_naming = try strings.concat(allocator, &.{ "./", asset_naming });
}
if (comptime FeatureFlags.react_server_components) {
if (args.flag("--server-components")) {
ctx.bundler_options.react_server_components = true;
}
}
if (args.option("--sourcemap")) |setting| {
if (setting.len == 0 or strings.eqlComptime(setting, "inline")) {
opts.source_map = Api.SourceMapMode.inline_into_file;
} else if (strings.eqlComptime(setting, "none")) {
opts.source_map = Api.SourceMapMode._none;
} else if (strings.eqlComptime(setting, "external")) {
opts.source_map = Api.SourceMapMode.external;
} else {
Output.prettyErrorln("<r><red>error<r>: Invalid sourcemap setting: \"{s}\"", .{setting});
Global.crash();
}
}
}
if (opts.entry_points.len == 0) {
var entry_points = ctx.positionals;
switch (comptime cmd) {
.BuildCommand => {
if (entry_points.len > 0 and (strings.eqlComptime(
entry_points[0],
"build",
) or strings.eqlComptime(entry_points[0], "bun"))) {
var out_entry = entry_points[1..];
for (entry_points, 0..) |entry, i| {
if (entry.len > 0) {
out_entry = out_entry[i..];
break;
}
}
entry_points = out_entry;
}
},
.DevCommand => {
if (entry_points.len > 0 and (strings.eqlComptime(
entry_points[0],
"dev",
) or strings.eqlComptime(
entry_points[0],
"d",
))) {
entry_points = entry_points[1..];
}
},
.RunCommand => {
if (entry_points.len > 0 and (strings.eqlComptime(
entry_points[0],
"run",
) or strings.eqlComptime(
entry_points[0],
"r",
))) {
entry_points = entry_points[1..];
}
},
else => {},
}
opts.entry_points = entry_points;
}
var jsx_factory = args.option("--jsx-factory");
var jsx_fragment = args.option("--jsx-fragment");
var jsx_import_source = args.option("--jsx-import-source");
var jsx_runtime = args.option("--jsx-runtime");
const react_fast_refresh = switch (comptime cmd) {
.DevCommand => !args.flag("--disable-react-fast-refresh"),
else => true,
};
if (comptime cmd == .DevCommand) {
ctx.debug.fallback_only = ctx.debug.fallback_only or args.flag("--disable-bun.js");
opts.disable_hmr = args.flag("--disable-hmr");
if (args.option("--public-dir")) |public_dir| {
if (public_dir.len > 0) {
opts.router = Api.RouteConfig{ .extensions = &.{}, .dir = &.{}, .static_dir = public_dir };
}
}
opts.node_modules_bundle_path = args.option("--bunfile") orelse opts.node_modules_bundle_path orelse brk: {
const node_modules_bundle_path_absolute = resolve_path.joinAbs(cwd, .auto, "node_modules.bun");
break :brk std.fs.realpathAlloc(allocator, node_modules_bundle_path_absolute) catch null;
};
opts.node_modules_bundle_path_server = args.option("--server-bunfile") orelse opts.node_modules_bundle_path_server orelse brk: {
const node_modules_bundle_path_absolute = resolve_path.joinAbs(cwd, .auto, "node_modules.server.bun");
break :brk std.fs.realpathAlloc(allocator, node_modules_bundle_path_absolute) catch null;
};
if (args.option("--use")) |entry| {
opts.framework = Api.FrameworkConfig{
.package = entry,
.development = !production,
};
}
} else {
if (args.flag("--hot")) {
ctx.debug.hot_reload = .hot;
} else if (args.flag("--watch")) {
ctx.debug.hot_reload = .watch;
bun.auto_reload_on_crash = true;
}
ctx.debug.offline_mode_setting = if (args.flag("--prefer-offline"))
Bunfig.OfflineMode.offline
else if (args.flag("--prefer-latest"))
Bunfig.OfflineMode.latest
else
Bunfig.OfflineMode.online;
if (args.flag("--no-install")) {
ctx.debug.global_cache = .disable;
} else if (args.flag("-i")) {
ctx.debug.global_cache = .fallback;
} else if (args.option("--install")) |enum_value| {
// -i=auto --install=force, --install=disable
if (options.GlobalCache.Map.get(enum_value)) |result| {
ctx.debug.global_cache = result;
// -i, --install
} else if (enum_value.len == 0) {
ctx.debug.global_cache = options.GlobalCache.force;
} else {
Output.prettyErrorln("Invalid value for --install: \"{s}\". Must be either \"auto\", \"fallback\", \"force\", or \"disable\"\n", .{enum_value});
Global.exit(1);
}
}
ctx.debug.silent = args.flag("--silent");
}
// const ResolveMatcher = strings.ExactSizeMatcher(8);
opts.resolve = Api.ResolveMode.lazy;
const TargetMatcher = strings.ExactSizeMatcher(8);
if (args.option("--target")) |_target| {
opts.target = opts.target orelse switch (TargetMatcher.match(_target)) {
TargetMatcher.case("browser") => Api.Target.browser,
TargetMatcher.case("node") => Api.Target.node,
TargetMatcher.case("macro") => if (cmd == .BuildCommand) Api.Target.bun_macro else Api.Target.bun,
TargetMatcher.case("bun") => Api.Target.bun,
else => invalidTarget(&diag, _target),
};
ctx.debug.run_in_bun = opts.target.? == .bun;
}
ctx.debug.run_in_bun = args.flag("--bun") or ctx.debug.run_in_bun;
if (jsx_factory != null or
jsx_fragment != null or
jsx_import_source != null or
jsx_runtime != null or
!react_fast_refresh)
{
var default_factory = "".*;
var default_fragment = "".*;
var default_import_source = "".*;
if (opts.jsx == null) {
opts.jsx = Api.Jsx{
.factory = constStrToU8(jsx_factory orelse &default_factory),
.fragment = constStrToU8(jsx_fragment orelse &default_fragment),
.import_source = constStrToU8(jsx_import_source orelse &default_import_source),
.runtime = if (jsx_runtime != null) try resolve_jsx_runtime(jsx_runtime.?) else Api.JsxRuntime.automatic,
.development = false,
.react_fast_refresh = react_fast_refresh,
};
} else {
opts.jsx = Api.Jsx{
.factory = constStrToU8(jsx_factory orelse opts.jsx.?.factory),
.fragment = constStrToU8(jsx_fragment orelse opts.jsx.?.fragment),
.import_source = constStrToU8(jsx_import_source orelse opts.jsx.?.import_source),
.runtime = if (jsx_runtime != null) try resolve_jsx_runtime(jsx_runtime.?) else opts.jsx.?.runtime,
.development = false,
.react_fast_refresh = react_fast_refresh,
};
}
}
if (cmd == .BuildCommand) {
if (opts.entry_points.len == 0 and opts.framework == null and opts.node_modules_bundle_path == null) {
return error.MissingEntryPoint;
}
}
if (opts.log_level) |log_level| {
logger.Log.default_log_level = switch (log_level) {
.debug => logger.Log.Level.debug,
.err => logger.Log.Level.err,
.warn => logger.Log.Level.warn,
else => logger.Log.Level.err,
};
ctx.log.level = logger.Log.default_log_level;
}
opts.output_dir = output_dir;
if (output_file != null)
ctx.debug.output_file = output_file.?;
return opts;
}
};
const AutoCommand = struct {
pub fn exec(allocator: std.mem.Allocator) !void {
try HelpCommand.execWithReason(allocator, .invalid_command);
}
};
const InitCommand = @import("./cli/init_command.zig").InitCommand;
pub const HelpCommand = struct {
pub fn exec(allocator: std.mem.Allocator) !void {
@setCold(true);
execWithReason(allocator, .explicit);
}
pub const Reason = enum {
explicit,
invalid_command,
};
// someone will get mad at me for this
pub const packages_to_remove_filler = [_]string{
"moment",
"underscore",
"jquery",
"backbone",
"redux",
"browserify",
"webpack",
"left-pad",
"is-array",
"babel-core",
"@parcel/core",
};
pub const packages_to_add_filler = [_]string{
"elysia",
"@shumai/shumai",
"hono",
"react",
"lyra",
"@remix-run/dev",
"@evan/duckdb",
"@zarfjs/zarf",
};
pub fn printWithReason(comptime reason: Reason) void {
// the spacing between commands here is intentional
const fmt =
\\> <r><b><magenta>run<r> <d>./my-script.ts<r> Run JavaScript with bun, a package.json script, or a bin
\\> <b><magenta>build<r> <d>./a.ts ./b.jsx<r> Bundle TypeScript & JavaScript into a single file
\\> <b><green>x<r> <d>bun-repl<r> Install and execute a package bin <d>(bunx)<r>
\\
\\> <b><cyan>init<r> Start an empty Bun project from a blank template
\\> <b><cyan>create<r> <d>next ./app<r> Create a new project from a template <d>(bun c)<r>
\\> <b><green>install<r> Install dependencies for a package.json <d>(bun i)<r>
\\> <b><blue>add<r> <d>{s:<16}<r> Add a dependency to package.json <d>(bun a)<r>
\\> <b><blue>link<r> Link an npm package globally
\\> remove<r> <d>{s:<16}<r> Remove a dependency from package.json <d>(bun rm)<r>
\\> unlink<r> Globally unlink an npm package
\\> pm<r> More commands for managing packages
\\
\\> <b><green>dev<r> <d>./a.ts ./b.jsx<r> Start a bun (frontend) Dev Server
\\
\\> <b><blue>upgrade<r> Get the latest version of bun
\\> <b><d>completions<r> Install shell completions for tab-completion
\\> <b><d>discord<r> Open bun's Discord server
\\> <b><d>help<r> Print this help menu
\\
;
var rand_state = std.rand.DefaultPrng.init(@intCast(u64, @max(std.time.milliTimestamp(), 0)));
const rand = rand_state.random();
const package_add_i = rand.uintAtMost(usize, packages_to_add_filler.len - 1);
const package_remove_i = rand.uintAtMost(usize, packages_to_remove_filler.len - 1);
const args = .{
packages_to_add_filler[package_add_i],
packages_to_remove_filler[package_remove_i],
};
switch (reason) {
.explicit => Output.pretty(
"<r><b><magenta>bun<r>: a fast bundler, transpiler, JavaScript Runtime and package manager for web software.\n\n" ++ fmt,
args,
),
.invalid_command => Output.prettyError(
"<r><red>Uh-oh<r> not sure what to do with that command.\n\n" ++ fmt,
args,
),
}
Output.flush();
}
pub fn execWithReason(_: std.mem.Allocator, comptime reason: Reason) void {
@setCold(true);
printWithReason(reason);
if (reason == .invalid_command) {
std.process.exit(1);
}
}
};
const AddCompletions = @import("./cli/add_completions.zig");
pub const PrintBundleCommand = struct {
pub fn exec(ctx: Command.Context) !void {
@setCold(true);
const entry_point = ctx.args.entry_points[0];
var out_buffer: [bun.MAX_PATH_BYTES]u8 = undefined;
var stdout = std.io.getStdOut();
var input = try std.fs.openFileAbsolute(try std.os.realpath(entry_point, &out_buffer), .{ .mode = .read_only });
const params = comptime [_]Arguments.ParamType{
clap.parseParam("--summary Peek inside the .bun") catch unreachable,
};
var jsBundleArgs = clap.parse(clap.Help, ¶ms, .{ .allocator = ctx.allocator }) catch {
try NodeModuleBundle.printBundle(std.fs.File, input, @TypeOf(stdout), stdout);
return;
};
if (jsBundleArgs.flag("--summary")) {
NodeModuleBundle.printSummaryFromDisk(std.fs.File, input, @TypeOf(stdout), stdout, ctx.allocator) catch {};
return;
}
try NodeModuleBundle.printBundle(std.fs.File, input, @TypeOf(stdout), stdout);
}
};
pub const Command = struct {
var script_name_buf: [bun.MAX_PATH_BYTES]u8 = undefined;
pub const DebugOptions = struct {
dump_environment_variables: bool = false,
dump_limits: bool = false,
fallback_only: bool = false,
silent: bool = false,
hot_reload: HotReload = HotReload.none,
global_cache: options.GlobalCache = .auto,
offline_mode_setting: ?Bunfig.OfflineMode = null,
run_in_bun: bool = false,
loaded_bunfig: bool = false,
// technical debt
macros: ?MacroMap = null,
editor: string = "",
package_bundle_map: bun.StringArrayHashMapUnmanaged(options.BundlePackage) = bun.StringArrayHashMapUnmanaged(options.BundlePackage){},
test_directory: []const u8 = "",
output_file: []const u8 = "",
};
pub const HotReload = enum {
none,
hot,
watch,
};
pub const TestOptions = struct {
update_snapshots: bool = false,
repeat_count: u32 = 0,
};
pub const Context = struct {
start_time: i128,
args: Api.TransformOptions,
log: *logger.Log,
allocator: std.mem.Allocator,
positionals: []const string = &[_]string{},
passthrough: []const string = &[_]string{},
install: ?*Api.BunInstall = null,
debug: DebugOptions = DebugOptions{},
test_options: TestOptions = TestOptions{},
bundler_options: BundlerOptions = BundlerOptions{},
preloads: []const string = &[_]string{},
has_loaded_global_config: bool = false,
pub const BundlerOptions = struct {
compile: bool = false,
outdir: []const u8 = "",
outfile: []const u8 = "",
root_dir: []const u8 = "",
entry_naming: []const u8 = "[dir]/[name].[ext]",
chunk_naming: []const u8 = "./[name]-[hash].[ext]",
asset_naming: []const u8 = "./[name]-[hash].[ext]",
react_server_components: bool = false,
code_splitting: bool = false,
transform_only: bool = false,
minify_syntax: bool = false,
minify_whitespace: bool = false,
minify_identifiers: bool = false,
};
const _ctx = Command.Context{
.args = std.mem.zeroes(Api.TransformOptions),
.log = undefined,
.start_time = 0,
.allocator = undefined,
};
pub fn create(allocator: std.mem.Allocator, log: *logger.Log, comptime command: Command.Tag) anyerror!Context {
Cli.cmd = command;
var ctx = _ctx;
ctx.log = log;
ctx.start_time = start_time;
ctx.allocator = allocator;
if (comptime Command.Tag.uses_global_options.get(command)) {
ctx.args = try Arguments.parse(allocator, &ctx, command);
}
return ctx;
}
};
// std.process.args allocates!
const ArgsIterator = struct {
buf: [][*:0]u8 = undefined,
i: u32 = 0,
pub fn next(this: *ArgsIterator) ?[]const u8 {
if (this.buf.len <= this.i) {
return null;
}
const i = this.i;
this.i += 1;
return std.mem.span(this.buf[i]);
}
pub fn skip(this: *ArgsIterator) bool {
return this.next() != null;
}
};
pub fn which() Tag {
var args_iter = ArgsIterator{ .buf = std.os.argv };
// first one is the executable name
const argv0 = args_iter.next() orelse return .HelpCommand;
// symlink is argv[0]
if (strings.endsWithComptime(argv0, "bunx"))
return .BunxCommand;
if (comptime Environment.isDebug) {
if (strings.endsWithComptime(argv0, "bunx-debug"))
return .BunxCommand;
}
var next_arg = ((args_iter.next()) orelse return .AutoCommand);