diff options
Diffstat (limited to 'node_modules/uglify-js/bin/uglifyjs')
| -rwxr-xr-x | node_modules/uglify-js/bin/uglifyjs | 910 |
1 files changed, 338 insertions, 572 deletions
diff --git a/node_modules/uglify-js/bin/uglifyjs b/node_modules/uglify-js/bin/uglifyjs index 63b2f26f1..8cbb3cadd 100755 --- a/node_modules/uglify-js/bin/uglifyjs +++ b/node_modules/uglify-js/bin/uglifyjs @@ -3,633 +3,399 @@ "use strict"; -var UglifyJS = require("../tools/node"); -var sys = require("util"); -var yargs = require("yargs"); +// workaround for tty output truncation upon process.exit() +[process.stdout, process.stderr].forEach(function(stream){ + if (stream._handle && stream._handle.setBlocking) + stream._handle.setBlocking(true); +}); + var fs = require("fs"); +var info = require("../package.json"); var path = require("path"); -var acorn; -var screw_ie8 = true; -var ARGS = yargs - .usage("$0 input1.js [input2.js ...] [options]\n\ -Use a single dash to read input from the standard input.\ -\n\n\ -NOTE: by default there is no mangling/compression.\n\ -Without [options] it will simply parse input files and dump the AST\n\ -with whitespace and comments discarded. To achieve compression and\n\ -mangling you need to use `-c` and `-m`.\ -") - .describe("source-map", "Specify an output file where to generate source map.") - .describe("source-map-root", "The path to the original source to be included in the source map.") - .describe("source-map-url", "The path to the source map to be added in //# sourceMappingURL. Defaults to the value passed with --source-map.") - .describe("source-map-inline", "Write base64-encoded source map to the end of js output. Disabled by default") - .describe("source-map-include-sources", "Pass this flag if you want to include the content of source files in the source map as sourcesContent property.") - .describe("in-source-map", "Input source map, useful if you're compressing JS that was generated from some other original code.") - .describe("screw-ie8", "Do not support Internet Explorer 6/7/8. This flag is enabled by default.") - .describe("support-ie8", "Support non-standard Internet Explorer 6/7/8 javascript.") - .describe("expr", "Parse a single expression, rather than a program (for parsing JSON)") - .describe("p", "Skip prefix for original filenames that appear in source maps. \ -For example -p 3 will drop 3 directories from file names and ensure they are relative paths. \ -You can also specify -p relative, which will make UglifyJS figure out itself the relative paths between original sources, \ -the source map and the output file.") - .describe("o", "Output file (default STDOUT).") - .describe("b", "Beautify output/specify output options.") - .describe("m", "Mangle names/pass mangler options.") - .describe("r", "Reserved names to exclude from mangling.") - .describe("c", "Enable compressor/pass compressor options. \ -Pass options like -c hoist_vars=false,if_return=false. \ -Use -c with no argument to use the default compression options.") - .describe("d", "Global definitions") - .describe("e", "Embed everything in a big function, with a configurable parameter/argument list.") - - .describe("comments", "Preserve copyright comments in the output. \ -By default this works like Google Closure, keeping JSDoc-style comments that contain \"@license\" or \"@preserve\". \ -You can optionally pass one of the following arguments to this flag:\n\ -- \"all\" to keep all comments\n\ -- a valid JS RegExp like `/foo/`or `/^!/` to keep only matching comments.\n\ -\ -Note that currently not *all* comments can be kept when compression is on, \ -because of dead code removal or cascading statements into sequences.") - - .describe("preamble", "Preamble to prepend to the output. You can use this to insert a \ -comment, for example for licensing information. This will not be \ -parsed, but the source map will adjust for its presence.") - - .describe("stats", "Display operations run time on STDERR.") - .describe("acorn", "Use Acorn for parsing.") - .describe("spidermonkey", "Assume input files are SpiderMonkey AST format (as JSON).") - .describe("self", "Build itself (UglifyJS2) as a library (implies --wrap=UglifyJS --export-all)") - .describe("wrap", "Embed everything in a big function, making the “exports” and “global” variables available. \ -You need to pass an argument to this option to specify the name that your module will take when included in, say, a browser.") - .describe("export-all", "Only used when --wrap, this tells UglifyJS to add code to automatically export all globals.") - .describe("lint", "Display some scope warnings") - .describe("v", "Verbose") - .describe("V", "Print version number and exit.") - .describe("noerr", "Don't throw an error for unknown options in -c, -b or -m.") - .describe("bare-returns", "Allow return outside of functions. Useful when minifying CommonJS modules.") - .describe("keep-fnames", "Do not mangle/drop function names. Useful for code relying on Function.prototype.name.") - .describe("quotes", "Quote style (0 - auto, 1 - single, 2 - double, 3 - original)") - .describe("reserved-file", "File containing reserved names") - .describe("reserve-domprops", "Make (most?) DOM properties reserved for --mangle-props") - .describe("mangle-props", "Mangle property names (0 - disabled, 1 - mangle all properties, 2 - mangle unquoted properies)") - .describe("mangle-regex", "Only mangle property names matching the regex") - .describe("name-cache", "File to hold mangled names mappings") - .describe("pure-funcs", "List of functions that can be safely removed if their return value is not used") - .describe("dump-spidermonkey-ast", "Dump SpiderMonkey AST to stdout.") - .describe("wrap-iife", "Wrap IIFEs in parenthesis. Note: this disables the negate_iife compression option") - - .alias("p", "prefix") - .alias("o", "output") - .alias("v", "verbose") - .alias("b", "beautify") - .alias("m", "mangle") - .alias("c", "compress") - .alias("d", "define") - .alias("r", "reserved") - .alias("V", "version") - .alias("e", "enclose") - .alias("q", "quotes") - - .string("source-map") - .string("source-map-root") - .string("source-map-url") - .string("b") - .string("beautify") - .string("m") - .string("mangle") - .string("mangle-props-debug") - .string("c") - .string("compress") - .string("d") - .string("define") - .string("e") - .string("enclose") - .string("comments") - .string("wrap") - .string("p") - .string("prefix") - .string("name-cache") - - .array("reserved-file") - .array("pure-funcs") - - .boolean("expr") - .boolean("source-map-inline") - .boolean("source-map-include-sources") - .boolean("screw-ie8") - .boolean("support-ie8") - .boolean("export-all") - .boolean("self") - .boolean("v") - .boolean("verbose") - .boolean("stats") - .boolean("acorn") - .boolean("spidermonkey") - .boolean("dump-spidermonkey-ast") - .boolean("lint") - .boolean("V") - .boolean("version") - .boolean("noerr") - .boolean("bare-returns") - .boolean("keep-fnames") - .boolean("reserve-domprops") - .boolean("wrap-iife") - - .wrap(80) - - .argv -; - -normalize(ARGS); - -if (ARGS.noerr) { - UglifyJS.DefaultsError.croak = function(msg, defs) { - print_error("WARN: " + msg); - }; -} - -if (ARGS.version || ARGS.V) { - var json = require("../package.json"); - print(json.name + ' ' + json.version); - process.exit(0); -} - -if (ARGS.ast_help) { - var desc = UglifyJS.describe_ast(); - print(typeof desc == "string" ? desc : JSON.stringify(desc, null, 2)); - process.exit(0); -} - -if (ARGS.h || ARGS.help) { - print(yargs.help()); - process.exit(0); -} - -if (ARGS.acorn) { - acorn = require("acorn"); -} - -var COMPRESS = getOptions("c", true); -var MANGLE = getOptions("m", true); -var BEAUTIFY = getOptions("b", true); -var RESERVED = null; +var program = require("commander"); +var UglifyJS = require("../tools/node"); -if (ARGS.reserved_file) ARGS.reserved_file.forEach(function(filename){ - RESERVED = UglifyJS.readReservedFile(filename, RESERVED); +var skip_keys = [ "cname", "enclosed", "parent_scope", "scope", "thedef", "uses_eval", "uses_with" ]; +var files = {}; +var options = { + compress: false, + mangle: false +}; +program.version(info.name + " " + info.version); +program.parseArgv = program.parse; +program.parse = undefined; +if (process.argv.indexOf("ast") >= 0) program.helpInformation = UglifyJS.describe_ast; +else if (process.argv.indexOf("options") >= 0) program.helpInformation = function() { + var text = []; + var options = UglifyJS.default_options(); + for (var option in options) { + text.push("--" + (option == "output" ? "beautify" : option == "sourceMap" ? "source-map" : option) + " options:"); + text.push(format_object(options[option])); + text.push(""); + } + return text.join("\n"); +}; +program.option("-p, --parse <options>", "Specify parser options.", parse_js()); +program.option("-c, --compress [options]", "Enable compressor/specify compressor options.", parse_js()); +program.option("-m, --mangle [options]", "Mangle names/specify mangler options.", parse_js()); +program.option("--mangle-props [options]", "Mangle properties/specify mangler options.", parse_js()); +program.option("-b, --beautify [options]", "Beautify output/specify output options.", parse_js()); +program.option("-o, --output <file>", "Output file (default STDOUT)."); +program.option("--comments [filter]", "Preserve copyright comments in the output."); +program.option("--config-file <file>", "Read minify() options from JSON file."); +program.option("-d, --define <expr>[=value]", "Global definitions.", parse_js("define")); +program.option("--ie8", "Support non-standard Internet Explorer 8."); +program.option("--keep-fnames", "Do not mangle/drop function names. Useful for code relying on Function.prototype.name."); +program.option("--name-cache <file>", "File to hold mangled name mappings."); +program.option("--self", "Build UglifyJS as a library (implies --wrap UglifyJS)"); +program.option("--source-map [options]", "Enable source map/specify source map options.", parse_source_map()); +program.option("--timings", "Display operations run time on STDERR.") +program.option("--toplevel", "Compress and/or mangle variables in toplevel scope."); +program.option("--verbose", "Print diagnostic messages."); +program.option("--warn", "Print warning messages."); +program.option("--wrap <name>", "Embed everything as a function with “exports” corresponding to “name” globally."); +program.arguments("[files...]").parseArgv(process.argv); +if (program.configFile) { + options = JSON.parse(read_file(program.configFile)); +} +if (!program.output && program.sourceMap && program.sourceMap.url != "inline") { + fatal("ERROR: cannot write source map to STDOUT"); +} +[ + "compress", + "ie8", + "mangle", + "sourceMap", + "toplevel", + "wrap" +].forEach(function(name) { + if (name in program) { + options[name] = program[name]; + } }); - -if (ARGS.reserve_domprops) { - RESERVED = UglifyJS.readDefaultReservedFile(RESERVED); -} - -if (ARGS.d) { - if (COMPRESS) COMPRESS.global_defs = getOptions("d"); +if (program.beautify) { + options.output = typeof program.beautify == "object" ? program.beautify : {}; + if (!("beautify" in options.output)) { + options.output.beautify = true; + } } - -if (ARGS.pure_funcs) { - if (COMPRESS) COMPRESS.pure_funcs = ARGS.pure_funcs; +if (program.comments) { + if (typeof options.output != "object") options.output = {}; + options.output.comments = typeof program.comments == "string" ? program.comments : "some"; } - -if (ARGS.r) { - if (MANGLE) MANGLE.except = ARGS.r.replace(/^\s+|\s+$/g).split(/\s*,+\s*/); +if (program.define) { + if (typeof options.compress != "object") options.compress = {}; + if (typeof options.compress.global_defs != "object") options.compress.global_defs = {}; + for (var expr in program.define) { + options.compress.global_defs[expr] = program.define[expr]; + } } - -if (RESERVED && MANGLE) { - if (!MANGLE.except) MANGLE.except = RESERVED.vars; - else MANGLE.except = MANGLE.except.concat(RESERVED.vars); +if (program.keepFnames) { + options.keep_fnames = true; } - -function readNameCache(key) { - return UglifyJS.readNameCache(ARGS.name_cache, key); +if (program.mangleProps) { + if (program.mangleProps.domprops) { + delete program.mangleProps.domprops; + } else { + if (typeof program.mangleProps != "object") program.mangleProps = {}; + if (!Array.isArray(program.mangleProps.reserved)) program.mangleProps.reserved = []; + require("../tools/domprops").forEach(function(name) { + UglifyJS._push_uniq(program.mangleProps.reserved, name); + }); + } + if (typeof options.mangle != "object") options.mangle = {}; + options.mangle.properties = program.mangleProps; } - -function writeNameCache(key, cache) { - return UglifyJS.writeNameCache(ARGS.name_cache, key, cache); +if (program.nameCache) { + options.nameCache = JSON.parse(read_file(program.nameCache, "{}")); } - -function extractRegex(str) { - if (/^\/.*\/[a-zA-Z]*$/.test(str)) { - var regex_pos = str.lastIndexOf("/"); - return new RegExp(str.substr(1, regex_pos - 1), str.substr(regex_pos + 1)); - } else { - throw new Error("Invalid regular expression: " + str); - } -} - -if (ARGS.quotes === true) { - ARGS.quotes = 3; +if (program.output == "ast") { + options.output = { + ast: true, + code: false + }; } - -if (ARGS.mangle_props === true) { - ARGS.mangle_props = 1; -} else if (ARGS.mangle_props === "unquoted") { - ARGS.mangle_props = 2; +if (program.parse) { + if (!program.parse.acorn && !program.parse.spidermonkey) { + options.parse = program.parse; + } else if (program.sourceMap && program.sourceMap.content == "inline") { + fatal("ERROR: inline source map only works with built-in parser"); + } } - -var OUTPUT_OPTIONS = { - beautify : BEAUTIFY ? true : false, - max_line_len : 32000, - preamble : ARGS.preamble || null, - quote_style : ARGS.quotes != null ? ARGS.quotes : 0, +var convert_path = function(name) { + return name; }; - -if (ARGS.mangle_props == 2) { - OUTPUT_OPTIONS.keep_quoted_props = true; - if (COMPRESS && !("properties" in COMPRESS)) - COMPRESS.properties = false; -} - -if (ARGS.support_ie8 === true && ARGS.screw_ie8 !== true) { - screw_ie8 = false; -} - -if (COMPRESS) COMPRESS.screw_ie8 = screw_ie8; -if (MANGLE) MANGLE.screw_ie8 = screw_ie8; -OUTPUT_OPTIONS.screw_ie8 = screw_ie8; - -if (ARGS.keep_fnames) { - if (COMPRESS) COMPRESS.keep_fnames = true; - if (MANGLE) MANGLE.keep_fnames = true; -} - -if (ARGS.wrap_iife) { - if (COMPRESS) COMPRESS.negate_iife = false; - OUTPUT_OPTIONS.wrap_iife = true; -} - -if (BEAUTIFY) - UglifyJS.merge(OUTPUT_OPTIONS, BEAUTIFY); - -if (ARGS.comments === "") { - OUTPUT_OPTIONS.comments = "some"; -} else { - OUTPUT_OPTIONS.comments = ARGS.comments; -} - -var files = ARGS._.slice(); - -if (process.platform === "win32") - files = UglifyJS.simple_glob(files); - -if (ARGS.self) { - if (files.length > 0) { +if (typeof program.sourceMap == "object" && "base" in program.sourceMap) { + convert_path = function() { + var base = program.sourceMap.base; + delete options.sourceMap.base; + return function(name) { + return path.relative(base, name); + }; + }(); +} +if (program.verbose) { + options.warnings = "verbose"; +} else if (program.warn) { + options.warnings = true; +} +if (program.self) { + if (program.args.length) { print_error("WARN: Ignoring input files since --self was passed"); } - files = UglifyJS.FILES; - if (!ARGS.wrap) ARGS.wrap = "UglifyJS"; -} - -var ORIG_MAP = ARGS.in_source_map; - -if (ORIG_MAP && ORIG_MAP != "inline") { - ORIG_MAP = JSON.parse(fs.readFileSync(ORIG_MAP)); - if (files.length == 0) { - print_error("INFO: Using file from the input source map: " + ORIG_MAP.file); - files = [ ORIG_MAP.file ]; - } -} - -if (files.length == 0) { - files = [ "-" ]; -} - -if (ORIG_MAP == "inline") { - if (files.length > 1) { - print_error("ERROR: Inline source map only works with singular input"); - process.exit(1); - } - if (ARGS.acorn || ARGS.spidermonkey) { - print_error("ERROR: Inline source map only works with built-in parser"); - process.exit(1); - } -} - -if (files.indexOf("-") >= 0 && ARGS.source_map) { - print_error("ERROR: Source map doesn't work with input from STDIN"); - process.exit(1); + if (!options.wrap) options.wrap = "UglifyJS"; + simple_glob(UglifyJS.FILES).forEach(function(name) { + files[convert_path(name)] = read_file(name); + }); + run(); +} else if (program.args.length) { + simple_glob(program.args).forEach(function(name) { + files[convert_path(name)] = read_file(name); + }); + run(); +} else { + var chunks = []; + process.stdin.setEncoding("utf8"); + process.stdin.on("data", function(chunk) { + chunks.push(chunk); + }).on("end", function() { + files = [ chunks.join("") ]; + run(); + }); + process.stdin.resume(); } -if (files.filter(function(el){ return el == "-" }).length > 1) { - print_error("ERROR: Can read a single file from STDIN (two or more dashes specified)"); - process.exit(1); +function convert_ast(fn) { + return UglifyJS.AST_Node.from_mozilla_ast(Object.keys(files).reduce(fn, null)); } -var STATS = {}; -var TOPLEVEL = null; -var P_RELATIVE = ARGS.p && ARGS.p == "relative"; -var SOURCES_CONTENT = {}; -var index = 0; - -!function cb() { - if (index == files.length) return done(); - var file = files[index++]; - read_whole_file(file, function (err, code) { - if (err) { - print_error("ERROR: can't read file: " + file); - process.exit(1); - } - if (ORIG_MAP == "inline") { - ORIG_MAP = read_source_map(code); - } - if (ARGS.p != null) { - if (P_RELATIVE) { - file = path.relative(path.dirname(ARGS.source_map), file).replace(/\\/g, '/'); - } else { - var p = parseInt(ARGS.p, 10); - if (!isNaN(p)) { - file = file.replace(/^\/+/, "").split(/\/+/).slice(ARGS.p).join("/"); - } - } - } - SOURCES_CONTENT[file] = code; - time_it("parse", function(){ - if (ARGS.spidermonkey) { - var program = JSON.parse(code); - if (!TOPLEVEL) TOPLEVEL = program; - else TOPLEVEL.body = TOPLEVEL.body.concat(program.body); - } - else if (ARGS.acorn) { - TOPLEVEL = acorn.parse(code, { - locations : true, - sourceFile : file, - program : TOPLEVEL +function run() { + UglifyJS.AST_Node.warn_function = function(msg) { + print_error("WARN: " + msg); + }; + if (program.timings) options.timings = true; + try { + if (program.parse) { + if (program.parse.acorn) { + files = convert_ast(function(toplevel, name) { + return require("acorn").parse(files[name], { + locations: true, + program: toplevel, + sourceFile: name + }); + }); + } else if (program.parse.spidermonkey) { + files = convert_ast(function(toplevel, name) { + var obj = JSON.parse(files[name]); + if (!toplevel) return obj; + toplevel.body = toplevel.body.concat(obj.body); + return toplevel; }); } - else { - try { - TOPLEVEL = UglifyJS.parse(code, { - filename : file, - toplevel : TOPLEVEL, - expression : ARGS.expr, - bare_returns : ARGS.bare_returns, - }); - } catch(ex) { - if (ex instanceof UglifyJS.JS_Parse_Error) { - print_error("Parse error at " + file + ":" + ex.line + "," + ex.col); - var col = ex.col; - var lines = code.split(/\r?\n/); - var line = lines[ex.line - 1]; - if (!line && !col) { - line = lines[ex.line - 2]; - col = line.length; - } - if (line) { - if (col > 40) { - line = line.slice(col - 40); - col = 40; - } - print_error(line.slice(0, 80)); - print_error(line.slice(0, col).replace(/\S/g, " ") + "^"); - } - print_error(ex.stack); - process.exit(1); - } - throw ex; - } - }; - }); - cb(); - }); -}(); - -function done() { - var OUTPUT_FILE = ARGS.o; - - var SOURCE_MAP = (ARGS.source_map || ARGS.source_map_inline) ? UglifyJS.SourceMap({ - file: P_RELATIVE ? path.relative(path.dirname(ARGS.source_map), OUTPUT_FILE) : OUTPUT_FILE, - root: ARGS.source_map_root || ORIG_MAP && ORIG_MAP.sourceRoot, - orig: ORIG_MAP, - }) : null; - - OUTPUT_OPTIONS.source_map = SOURCE_MAP; - - try { - var output = UglifyJS.OutputStream(OUTPUT_OPTIONS); - var compressor = COMPRESS && UglifyJS.Compressor(COMPRESS); - } catch(ex) { - if (ex instanceof UglifyJS.DefaultsError) { - print_error(ex.message); - print_error("Supported options:"); - print_error(sys.inspect(ex.defs)); - process.exit(1); } + } catch (ex) { + fatal(ex); } - - if (ARGS.acorn || ARGS.spidermonkey) time_it("convert_ast", function(){ - TOPLEVEL = UglifyJS.AST_Node.from_mozilla_ast(TOPLEVEL); - }); - - if (ARGS.wrap != null) { - TOPLEVEL = TOPLEVEL.wrap_commonjs(ARGS.wrap, ARGS.export_all); - } - - if (ARGS.enclose != null) { - var arg_parameter_list = ARGS.enclose; - if (arg_parameter_list === true) { - arg_parameter_list = []; - } - else if (!(arg_parameter_list instanceof Array)) { - arg_parameter_list = [arg_parameter_list]; + var result = UglifyJS.minify(files, options); + if (result.error) { + var ex = result.error; + if (ex.name == "SyntaxError") { + print_error("Parse error at " + ex.filename + ":" + ex.line + "," + ex.col); + var col = ex.col; + var lines = files[ex.filename].split(/\r?\n/); + var line = lines[ex.line - 1]; + if (!line && !col) { + line = lines[ex.line - 2]; + col = line.length; + } + if (line) { + var limit = 70; + if (col > limit) { + line = line.slice(col - limit); + col = limit; + } + print_error(line.slice(0, 80)); + print_error(line.slice(0, col).replace(/\S/g, " ") + "^"); + } } - TOPLEVEL = TOPLEVEL.wrap_enclose(arg_parameter_list); - } - - if (ARGS.mangle_props || ARGS.name_cache) (function(){ - var reserved = RESERVED ? RESERVED.props : null; - var cache = readNameCache("props"); - var regex; - - try { - regex = ARGS.mangle_regex ? extractRegex(ARGS.mangle_regex) : null; - } catch (e) { - print_error("ERROR: Invalid --mangle-regex: " + e.message); - process.exit(1); + if (ex.defs) { + print_error("Supported options:"); + print_error(format_object(ex.defs)); } - - TOPLEVEL = UglifyJS.mangle_properties(TOPLEVEL, { - reserved : reserved, - cache : cache, - only_cache : !ARGS.mangle_props, - regex : regex, - ignore_quoted : ARGS.mangle_props == 2, - debug : typeof ARGS.mangle_props_debug === "undefined" ? false : ARGS.mangle_props_debug - }); - writeNameCache("props", cache); - })(); - - var SCOPE_IS_NEEDED = COMPRESS || MANGLE || ARGS.lint - var TL_CACHE = readNameCache("vars"); - if (MANGLE) MANGLE.cache = TL_CACHE; - - if (SCOPE_IS_NEEDED) { - time_it("scope", function(){ - TOPLEVEL.figure_out_scope(MANGLE || { screw_ie8: screw_ie8, cache: TL_CACHE }); - if (ARGS.lint) { - TOPLEVEL.scope_warnings(); - } - }); - } - - if (COMPRESS) { - time_it("squeeze", function(){ - TOPLEVEL = compressor.compress(TOPLEVEL); - }); - } - - if (SCOPE_IS_NEEDED) { - time_it("scope", function(){ - TOPLEVEL.figure_out_scope(MANGLE || { screw_ie8: screw_ie8, cache: TL_CACHE }); - if (MANGLE && !TL_CACHE) { - TOPLEVEL.compute_char_frequency(MANGLE); + fatal(ex); + } else if (program.output == "ast") { + print(JSON.stringify(result.ast, function(key, value) { + if (skip_key(key)) return; + if (value instanceof UglifyJS.AST_Token) return; + if (value instanceof UglifyJS.Dictionary) return; + if (value instanceof UglifyJS.AST_Node) { + var result = { + _class: "AST_" + value.TYPE + }; + value.CTOR.PROPS.forEach(function(prop) { + result[prop] = value[prop]; + }); + return result; } - }); - } - - if (MANGLE) time_it("mangle", function(){ - TOPLEVEL.mangle_names(MANGLE); - }); - - writeNameCache("vars", TL_CACHE); - - if (ARGS.source_map_include_sources) { - for (var file in SOURCES_CONTENT) { - if (SOURCES_CONTENT.hasOwnProperty(file)) { - SOURCE_MAP.get().setSourceContent(file, SOURCES_CONTENT[file]); + return value; + }, 2)); + } else if (program.output == "spidermonkey") { + print(JSON.stringify(UglifyJS.minify(result.code, { + compress: false, + mangle: false, + output: { + ast: true, + code: false } + }).ast.to_mozilla_ast(), null, 2)); + } else if (program.output) { + fs.writeFileSync(program.output, result.code); + if (result.map) { + fs.writeFileSync(program.output + ".map", result.map); } - } - - if (ARGS.dump_spidermonkey_ast) { - print(JSON.stringify(TOPLEVEL.to_mozilla_ast(), null, 2)); } else { - time_it("generate", function(){ - TOPLEVEL.print(output); - }); - - output = output.get(); + print(result.code); + } + if (program.nameCache) { + fs.writeFileSync(program.nameCache, JSON.stringify(options.nameCache)); + } + if (result.timings) for (var phase in result.timings) { + print_error("- " + phase + ": " + result.timings[phase].toFixed(3) + "s"); + } +} - if (SOURCE_MAP) { - if (ARGS.source_map_inline) { - var base64_string = new Buffer(SOURCE_MAP.toString()).toString('base64'); - output += "\n//# sourceMappingURL=data:application/json;charset=utf-8;base64," + base64_string; - } else { - fs.writeFileSync(ARGS.source_map, SOURCE_MAP, "utf8"); - var source_map_url = ARGS.source_map_url || ( - P_RELATIVE - ? path.relative(path.dirname(OUTPUT_FILE), ARGS.source_map) - : ARGS.source_map - ); - output += "\n//# sourceMappingURL=" + source_map_url; - } - } +function fatal(message) { + if (message instanceof Error) message = message.stack.replace(/^\S*?Error:/, "ERROR:") + print_error(message); + process.exit(1); +} - if (OUTPUT_FILE) { - fs.writeFileSync(OUTPUT_FILE, output, "utf8"); - } else { - print(output); - } +// A file glob function that only supports "*" and "?" wildcards in the basename. +// Example: "foo/bar/*baz??.*.js" +// Argument `glob` may be a string or an array of strings. +// Returns an array of strings. Garbage in, garbage out. +function simple_glob(glob) { + if (Array.isArray(glob)) { + return [].concat.apply([], glob.map(simple_glob)); } - - if (ARGS.stats) { - print_error(UglifyJS.string_template("Timing information (compressed {count} files):", { - count: files.length - })); - for (var i in STATS) if (STATS.hasOwnProperty(i)) { - print_error(UglifyJS.string_template("- {name}: {time}s", { - name: i, - time: (STATS[i] / 1000).toFixed(3) - })); + if (glob.match(/\*|\?/)) { + var dir = path.dirname(glob); + try { + var entries = fs.readdirSync(dir); + } catch (ex) {} + if (entries) { + var pattern = "^" + path.basename(glob) + .replace(/[.+^$[\]\\(){}]/g, "\\$&") + .replace(/\*/g, "[^/\\\\]*") + .replace(/\?/g, "[^/\\\\]") + "$"; + var mod = process.platform === "win32" ? "i" : ""; + var rx = new RegExp(pattern, mod); + var results = entries.filter(function(name) { + return rx.test(name); + }).map(function(name) { + return path.join(dir, name); + }); + if (results.length) return results; } } + return [ glob ]; } -/* -----[ functions ]----- */ - -function normalize(o) { - for (var i in o) if (o.hasOwnProperty(i) && /-/.test(i)) { - o[i.replace(/-/g, "_")] = o[i]; - delete o[i]; +function read_file(path, default_value) { + try { + return fs.readFileSync(path, "utf8"); + } catch (ex) { + if (ex.code == "ENOENT" && default_value != null) return default_value; + fatal(ex); } } -function getOptions(flag, constants) { - var x = ARGS[flag]; - if (x == null || x === false) return null; - var ret = {}; - if (x !== "") { - if (Array.isArray(x)) x = x.map(function (v) { return "(" + v + ")"; }).join(", "); - - var ast; +function parse_js(flag) { + return function(value, options) { + options = options || {}; try { - ast = UglifyJS.parse(x, { cli: true, expression: true }); + UglifyJS.minify(value, { + parse: { + expression: true + }, + compress: false, + mangle: false, + output: { + ast: true, + code: false + } + }).ast.walk(new UglifyJS.TreeWalker(function(node) { + if (node instanceof UglifyJS.AST_Assign) { + var name = node.left.print_to_string(); + var value = node.right; + if (flag) { + options[name] = value; + } else if (value instanceof UglifyJS.AST_Array) { + options[name] = value.elements.map(to_string); + } else { + options[name] = to_string(value); + } + return true; + } + if (node instanceof UglifyJS.AST_Symbol || node instanceof UglifyJS.AST_PropAccess) { + var name = node.print_to_string(); + options[name] = true; + return true; + } + if (!(node instanceof UglifyJS.AST_Sequence)) throw node; + + function to_string(value) { + return value instanceof UglifyJS.AST_Constant ? value.getValue() : value.print_to_string({ + quote_keys: true + }); + } + })); } catch(ex) { - if (ex instanceof UglifyJS.JS_Parse_Error) { - print_error("Error parsing arguments for flag `" + flag + "': " + x); - process.exit(1); + if (flag) { + fatal("Error parsing arguments for '" + flag + "': " + value); + } else { + options[value] = null; } } - ast.walk(new UglifyJS.TreeWalker(function(node){ - if (node instanceof UglifyJS.AST_Seq) return; // descend - if (node instanceof UglifyJS.AST_Assign) { - var name = node.left.print_to_string().replace(/-/g, "_"); - var value = node.right; - if (constants) - value = new Function("return (" + value.print_to_string() + ")")(); - ret[name] = value; - return true; // no descend - } - if (node instanceof UglifyJS.AST_Symbol || node instanceof UglifyJS.AST_Binary) { - var name = node.print_to_string().replace(/-/g, "_"); - ret[name] = true; - return true; // no descend - } - print_error(node.TYPE) - print_error("Error parsing arguments for flag `" + flag + "': " + x); - process.exit(1); - })); + return options; } - return ret; } -function read_whole_file(filename, cb) { - if (filename == "-") { - var chunks = []; - process.stdin.setEncoding('utf-8'); - process.stdin.on('data', function (chunk) { - chunks.push(chunk); - }).on('end', function () { - cb(null, chunks.join("")); - }); - process.openStdin(); - } else { - fs.readFile(filename, "utf-8", cb); +function parse_source_map() { + var parse = parse_js(); + return function(value, options) { + var hasContent = options && "content" in options; + var settings = parse(value, options); + if (!hasContent && settings.content && settings.content != "inline") { + print_error("INFO: Using input source map: " + settings.content); + settings.content = read_file(settings.content, settings.content); + } + return settings; } } -function read_source_map(code) { - var match = /\n\/\/# sourceMappingURL=data:application\/json(;.*?)?;base64,(.*)/.exec(code); - if (!match) { - print_error("WARN: inline source map not found"); - return null; - } - return JSON.parse(new Buffer(match[2], "base64")); +function skip_key(key) { + return skip_keys.indexOf(key) >= 0; } -function time_it(name, cont) { - var t1 = new Date().getTime(); - var ret = cont(); - if (ARGS.stats) { - var spent = new Date().getTime() - t1; - if (STATS[name]) STATS[name] += spent; - else STATS[name] = spent; - } - return ret; +function format_object(obj) { + var lines = []; + var padding = ""; + Object.keys(obj).map(function(name) { + if (padding.length < name.length) padding = Array(name.length + 1).join(" "); + return [ name, JSON.stringify(obj[name]) ]; + }).forEach(function(tokens) { + lines.push(" " + tokens[0] + padding.slice(tokens[0].length - 2) + tokens[1]); + }); + return lines.join("\n"); } function print_error(msg) { - console.error("%s", msg); + process.stderr.write(msg); + process.stderr.write("\n"); } function print(txt) { - console.log("%s", txt); + process.stdout.write(txt); + process.stdout.write("\n"); } |