unify CLI & API under minify() (#1811)
- rename `screw_ie8` to `ie8` - rename `mangle.except` to `mangle.reserved` - rename `mangle.properties.ignore_quoted` to `mangle.properties.keep_quoted` - compact `sourceMap` options - more stringent verification on input `options` - toplevel shorthands - `ie8` - `keep_fnames` - `toplevel` - `warnings` - support arrays and unquoted string values on CLI - drop `fromString` from `minify()` - `minify()` no longer handles any `fs` operations - unify order of operations for `mangle_properties()` on CLI & API - `bin/uglifyjs` used to `mangle_properties()` before even `Compressor` - `minify()` used to `mangle_properties()` after `Compressor` but before `mangle_names()` - both will now do `Compressor`, `mangle_names()` then `mangle_properties()` - `options.parse` / `--parse` for parser options beyond `bare_returns` - add `mangle.properties.builtins` to disable built-in reserved list - disable with `--mangle-props builtins` on CLI - `warnings` now off by default - add `--warn` and `--verbose` on CLI - drop `--enclose` - drop `--export-all` - drop `--reserved-file` - use `--mangle reserved` instead - drop `--reserve-domprops` - enabled by default, disable with `--mangle-props domprops` - drop `--prefix` - use `--source-map base` instead - drop `--lint` - remove `bin/extract-props.js` - limit exposure of internal APIs - update documentations closes #96 closes #102 closes #136 closes #166 closes #243 closes #254 closes #261 closes #311 closes #700 closes #748 closes #912 closes #1072 closes #1366 fixes #101 fixes #123 fixes #124 fixes #263 fixes #379 fixes #419 fixes #423 fixes #461 fixes #465 fixes #576 fixes #737 fixes #772 fixes #958 fixes #1036 fixes #1142 fixes #1175 fixes #1220 fixes #1223 fixes #1280 fixes #1359 fixes #1368
This commit is contained in:
Alex Lam S.L
146
lib/minify.js
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146
lib/minify.js
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"use strict";
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var to_ascii = typeof atob == "undefined" ? function(b64) {
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return new Buffer(b64, "base64").toString();
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} : atob;
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var to_base64 = typeof btoa == "undefined" ? function(str) {
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return new Buffer(str).toString("base64");
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} : btoa;
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function read_source_map(code) {
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var match = /\n\/\/# sourceMappingURL=data:application\/json(;.*?)?;base64,(.*)/.exec(code);
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if (!match) {
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AST_Node.warn("inline source map not found");
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return null;
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}
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return to_ascii(match[2]);
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}
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function set_shorthand(name, options, keys) {
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if (options[name]) {
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keys.forEach(function(key) {
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if (options[key]) {
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if (typeof options[key] != "object") options[key] = {};
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if (!(name in options[key])) options[key][name] = options[name];
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}
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});
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}
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}
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function minify(files, options) {
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var warn_function = AST_Node.warn_function;
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try {
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if (typeof files == "string") {
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files = [ files ];
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}
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options = defaults(options, {
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compress: {},
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ie8: false,
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keep_fnames: false,
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mangle: {},
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output: {},
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parse: {},
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sourceMap: false,
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toplevel: false,
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warnings: false,
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wrap: false,
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}, true);
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set_shorthand("ie8", options, [ "compress", "mangle", "output" ]);
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set_shorthand("keep_fnames", options, [ "compress", "mangle" ]);
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set_shorthand("toplevel", options, [ "compress", "mangle" ]);
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set_shorthand("warnings", options, [ "compress" ]);
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if (options.mangle) {
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options.mangle = defaults(options.mangle, {
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cache: null,
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eval: false,
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ie8: false,
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keep_fnames: false,
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properties: false,
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reserved: [],
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toplevel: false,
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}, true);
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}
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if (options.sourceMap) {
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options.sourceMap = defaults(options.sourceMap, {
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content: null,
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filename: null,
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includeSources: false,
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root: null,
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url: null,
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}, true);
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}
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var warnings = [];
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if (options.warnings && !AST_Node.warn_function) {
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AST_Node.warn_function = function(warning) {
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warnings.push(warning);
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};
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}
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var toplevel;
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if (files instanceof AST_Toplevel) {
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toplevel = files;
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} else {
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options.parse = options.parse || {};
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options.parse.toplevel = null;
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for (var name in files) {
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options.parse.filename = name;
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options.parse.toplevel = parse(files[name], options.parse);
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if (options.sourceMap && options.sourceMap.content == "inline") {
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if (Object.keys(files).length > 1)
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throw new Error("inline source map only works with singular input");
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options.sourceMap.content = read_source_map(files[name]);
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}
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}
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toplevel = options.parse.toplevel;
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}
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if (options.wrap) {
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toplevel = toplevel.wrap_commonjs(options.wrap);
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}
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if (options.compress) {
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toplevel.figure_out_scope(options.mangle);
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toplevel = new Compressor(options.compress).compress(toplevel);
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}
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if (options.mangle) {
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toplevel.figure_out_scope(options.mangle);
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base54.reset();
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toplevel.compute_char_frequency(options.mangle);
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toplevel.mangle_names(options.mangle);
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if (options.mangle.properties) {
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toplevel = mangle_properties(toplevel, options.mangle.properties);
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}
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}
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if (options.sourceMap) {
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if (typeof options.sourceMap.content == "string") {
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options.sourceMap.content = JSON.parse(options.sourceMap.content);
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}
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options.output.source_map = SourceMap({
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file: options.sourceMap.filename,
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orig: options.sourceMap.content,
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root: options.sourceMap.root
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});
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if (options.sourceMap.includeSources) {
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for (var name in files) {
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options.output.source_map.get().setSourceContent(name, files[name]);
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}
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}
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}
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var stream = OutputStream(options.output);
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toplevel.print(stream);
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var result = {
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code: stream.get()
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};
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if (options.sourceMap) {
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result.map = options.output.source_map.toString();
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if (options.sourceMap.url == "inline") {
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result.code += "\n//# sourceMappingURL=data:application/json;charset=utf-8;base64," + to_base64(result.map);
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} else if (options.sourceMap.url) {
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result.code += "\n//# sourceMappingURL=" + options.sourceMap.url;
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}
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}
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if (warnings.length) {
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result.warnings = warnings;
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}
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return result;
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} finally {
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AST_Node.warn_function = warn_function;
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}
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}
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