first commit
This commit is contained in:
monjack
482
app_vue/node_modules/terser/lib/cli.js
generated
vendored
Normal file
482
app_vue/node_modules/terser/lib/cli.js
generated
vendored
Normal file
@ -0,0 +1,482 @@
|
||||
import { minify, _default_options } from "../main.js";
|
||||
import { parse } from "./parse.js";
|
||||
import {
|
||||
AST_Assign,
|
||||
AST_Array,
|
||||
AST_Constant,
|
||||
AST_Node,
|
||||
AST_PropAccess,
|
||||
AST_RegExp,
|
||||
AST_Sequence,
|
||||
AST_Symbol,
|
||||
AST_Token,
|
||||
walk
|
||||
} from "./ast.js";
|
||||
import { OutputStream } from "./output.js";
|
||||
|
||||
export async function run_cli({ program, packageJson, fs, path }) {
|
||||
const skip_keys = new Set([ "cname", "parent_scope", "scope", "uses_eval", "uses_with" ]);
|
||||
var files = {};
|
||||
var options = {
|
||||
compress: false,
|
||||
mangle: false
|
||||
};
|
||||
const default_options = await _default_options();
|
||||
program.version(packageJson.name + " " + packageJson.version);
|
||||
program.parseArgv = program.parse;
|
||||
program.parse = undefined;
|
||||
|
||||
if (process.argv.includes("ast")) program.helpInformation = describe_ast;
|
||||
else if (process.argv.includes("options")) program.helpInformation = function() {
|
||||
var text = [];
|
||||
for (var option in default_options) {
|
||||
text.push("--" + (option === "sourceMap" ? "source-map" : option) + " options:");
|
||||
text.push(format_object(default_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("-f, --format [options]", "Format options.", parse_js());
|
||||
program.option("-b, --beautify [options]", "Alias for --format.", 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("--ecma <version>", "Specify ECMAScript release: 5, 2015, 2016 or 2017...");
|
||||
program.option("-e, --enclose [arg[,...][:value[,...]]]", "Embed output in a big function with configurable arguments and values.");
|
||||
program.option("--ie8", "Support non-standard Internet Explorer 8.");
|
||||
program.option("--keep-classnames", "Do not mangle/drop class names.");
|
||||
program.option("--keep-fnames", "Do not mangle/drop function names. Useful for code relying on Function.prototype.name.");
|
||||
program.option("--module", "Input is an ES6 module");
|
||||
program.option("--name-cache <file>", "File to hold mangled name mappings.");
|
||||
program.option("--rename", "Force symbol expansion.");
|
||||
program.option("--no-rename", "Disable symbol expansion.");
|
||||
program.option("--safari10", "Support non-standard Safari 10.");
|
||||
program.option("--source-map [options]", "Enable source map/specify source map options.", parse_js());
|
||||
program.option("--timings", "Display operations run time on STDERR.");
|
||||
program.option("--toplevel", "Compress and/or mangle variables in toplevel scope.");
|
||||
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",
|
||||
"enclose",
|
||||
"ie8",
|
||||
"mangle",
|
||||
"module",
|
||||
"safari10",
|
||||
"sourceMap",
|
||||
"toplevel",
|
||||
"wrap"
|
||||
].forEach(function(name) {
|
||||
if (name in program) {
|
||||
options[name] = program[name];
|
||||
}
|
||||
});
|
||||
|
||||
if ("ecma" in program) {
|
||||
if (program.ecma != (program.ecma | 0)) fatal("ERROR: ecma must be an integer");
|
||||
const ecma = program.ecma | 0;
|
||||
if (ecma > 5 && ecma < 2015)
|
||||
options.ecma = ecma + 2009;
|
||||
else
|
||||
options.ecma = ecma;
|
||||
}
|
||||
if (program.format || program.beautify) {
|
||||
const chosenOption = program.format || program.beautify;
|
||||
options.format = typeof chosenOption === "object" ? chosenOption : {};
|
||||
}
|
||||
if (program.comments) {
|
||||
if (typeof options.format != "object") options.format = {};
|
||||
options.format.comments = typeof program.comments == "string" ? (program.comments == "false" ? false : program.comments) : "some";
|
||||
}
|
||||
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 (program.keepClassnames) {
|
||||
options.keep_classnames = true;
|
||||
}
|
||||
if (program.keepFnames) {
|
||||
options.keep_fnames = true;
|
||||
}
|
||||
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 = [];
|
||||
}
|
||||
if (typeof options.mangle != "object") options.mangle = {};
|
||||
options.mangle.properties = program.mangleProps;
|
||||
}
|
||||
if (program.nameCache) {
|
||||
options.nameCache = JSON.parse(read_file(program.nameCache, "{}"));
|
||||
}
|
||||
if (program.output == "ast") {
|
||||
options.format = {
|
||||
ast: true,
|
||||
code: false
|
||||
};
|
||||
}
|
||||
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");
|
||||
}
|
||||
}
|
||||
if (~program.rawArgs.indexOf("--rename")) {
|
||||
options.rename = true;
|
||||
} else if (!program.rename) {
|
||||
options.rename = false;
|
||||
}
|
||||
|
||||
let convert_path = name => name;
|
||||
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);
|
||||
};
|
||||
}();
|
||||
}
|
||||
|
||||
let filesList;
|
||||
if (options.files && options.files.length) {
|
||||
filesList = options.files;
|
||||
|
||||
delete options.files;
|
||||
} else if (program.args.length) {
|
||||
filesList = program.args;
|
||||
}
|
||||
|
||||
if (filesList) {
|
||||
simple_glob(filesList).forEach(function(name) {
|
||||
files[convert_path(name)] = read_file(name);
|
||||
});
|
||||
} else {
|
||||
await new Promise((resolve) => {
|
||||
var chunks = [];
|
||||
process.stdin.setEncoding("utf8");
|
||||
process.stdin.on("data", function(chunk) {
|
||||
chunks.push(chunk);
|
||||
}).on("end", function() {
|
||||
files = [ chunks.join("") ];
|
||||
resolve();
|
||||
});
|
||||
process.stdin.resume();
|
||||
});
|
||||
}
|
||||
|
||||
await run_cli();
|
||||
|
||||
function convert_ast(fn) {
|
||||
return AST_Node.from_mozilla_ast(Object.keys(files).reduce(fn, null));
|
||||
}
|
||||
|
||||
async function run_cli() {
|
||||
var content = program.sourceMap && program.sourceMap.content;
|
||||
if (content && content !== "inline") {
|
||||
options.sourceMap.content = read_file(content, content);
|
||||
}
|
||||
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], {
|
||||
ecmaVersion: 2024,
|
||||
locations: true,
|
||||
program: toplevel,
|
||||
sourceFile: name,
|
||||
sourceType: options.module || program.parse.module ? "module" : "script"
|
||||
});
|
||||
});
|
||||
} 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;
|
||||
});
|
||||
}
|
||||
}
|
||||
} catch (ex) {
|
||||
fatal(ex);
|
||||
}
|
||||
|
||||
let result;
|
||||
try {
|
||||
result = await minify(files, options, fs);
|
||||
} catch (ex) {
|
||||
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, " ") + "^");
|
||||
}
|
||||
}
|
||||
if (ex.defs) {
|
||||
print_error("Supported options:");
|
||||
print_error(format_object(ex.defs));
|
||||
}
|
||||
fatal(ex);
|
||||
return;
|
||||
}
|
||||
|
||||
if (program.output == "ast") {
|
||||
if (!options.compress && !options.mangle) {
|
||||
result.ast.figure_out_scope({});
|
||||
}
|
||||
console.log(JSON.stringify(result.ast, function(key, value) {
|
||||
if (value) switch (key) {
|
||||
case "thedef":
|
||||
return symdef(value);
|
||||
case "enclosed":
|
||||
return value.length ? value.map(symdef) : undefined;
|
||||
case "variables":
|
||||
case "globals":
|
||||
return value.size ? collect_from_map(value, symdef) : undefined;
|
||||
}
|
||||
if (skip_keys.has(key)) return;
|
||||
if (value instanceof AST_Token) return;
|
||||
if (value instanceof Map) return;
|
||||
if (value instanceof AST_Node) {
|
||||
var result = {
|
||||
_class: "AST_" + value.TYPE
|
||||
};
|
||||
if (value.block_scope) {
|
||||
result.variables = value.block_scope.variables;
|
||||
result.enclosed = value.block_scope.enclosed;
|
||||
}
|
||||
value.CTOR.PROPS.forEach(function(prop) {
|
||||
if (prop !== "block_scope") {
|
||||
result[prop] = value[prop];
|
||||
}
|
||||
});
|
||||
return result;
|
||||
}
|
||||
return value;
|
||||
}, 2));
|
||||
} else if (program.output == "spidermonkey") {
|
||||
try {
|
||||
const minified = await minify(
|
||||
result.code,
|
||||
{
|
||||
compress: false,
|
||||
mangle: false,
|
||||
format: {
|
||||
ast: true,
|
||||
code: false
|
||||
}
|
||||
},
|
||||
fs
|
||||
);
|
||||
console.log(JSON.stringify(minified.ast.to_mozilla_ast(), null, 2));
|
||||
} catch (ex) {
|
||||
fatal(ex);
|
||||
return;
|
||||
}
|
||||
} else if (program.output) {
|
||||
fs.mkdirSync(path.dirname(program.output), { recursive: true });
|
||||
fs.writeFileSync(program.output, result.code);
|
||||
if (options.sourceMap && options.sourceMap.url !== "inline" && result.map) {
|
||||
fs.writeFileSync(program.output + ".map", result.map);
|
||||
}
|
||||
} else {
|
||||
console.log(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");
|
||||
}
|
||||
}
|
||||
|
||||
function fatal(message) {
|
||||
if (message instanceof Error) message = message.stack.replace(/^\S*?Error:/, "ERROR:");
|
||||
print_error(message);
|
||||
process.exit(1);
|
||||
}
|
||||
|
||||
// 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 (glob && 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 ];
|
||||
}
|
||||
|
||||
function read_file(path, default_value) {
|
||||
try {
|
||||
return fs.readFileSync(path, "utf8");
|
||||
} catch (ex) {
|
||||
if ((ex.code == "ENOENT" || ex.code == "ENAMETOOLONG") && default_value != null) return default_value;
|
||||
fatal(ex);
|
||||
}
|
||||
}
|
||||
|
||||
function parse_js(flag) {
|
||||
return function(value, options) {
|
||||
options = options || {};
|
||||
try {
|
||||
walk(parse(value, { expression: true }), node => {
|
||||
if (node instanceof AST_Assign) {
|
||||
var name = node.left.print_to_string();
|
||||
var value = node.right;
|
||||
if (flag) {
|
||||
options[name] = value;
|
||||
} else if (value instanceof AST_Array) {
|
||||
options[name] = value.elements.map(to_string);
|
||||
} else if (value instanceof AST_RegExp) {
|
||||
value = value.value;
|
||||
options[name] = new RegExp(value.source, value.flags);
|
||||
} else {
|
||||
options[name] = to_string(value);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
if (node instanceof AST_Symbol || node instanceof AST_PropAccess) {
|
||||
var name = node.print_to_string();
|
||||
options[name] = true;
|
||||
return true;
|
||||
}
|
||||
if (!(node instanceof AST_Sequence)) throw node;
|
||||
|
||||
function to_string(value) {
|
||||
return value instanceof AST_Constant ? value.getValue() : value.print_to_string({
|
||||
quote_keys: true
|
||||
});
|
||||
}
|
||||
});
|
||||
} catch(ex) {
|
||||
if (flag) {
|
||||
fatal("Error parsing arguments for '" + flag + "': " + value);
|
||||
} else {
|
||||
options[value] = null;
|
||||
}
|
||||
}
|
||||
return options;
|
||||
};
|
||||
}
|
||||
|
||||
function symdef(def) {
|
||||
var ret = (1e6 + def.id) + " " + def.name;
|
||||
if (def.mangled_name) ret += " " + def.mangled_name;
|
||||
return ret;
|
||||
}
|
||||
|
||||
function collect_from_map(map, callback) {
|
||||
var result = [];
|
||||
map.forEach(function (def) {
|
||||
result.push(callback(def));
|
||||
});
|
||||
return result;
|
||||
}
|
||||
|
||||
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) {
|
||||
process.stderr.write(msg);
|
||||
process.stderr.write("\n");
|
||||
}
|
||||
|
||||
function describe_ast() {
|
||||
var out = OutputStream({ beautify: true });
|
||||
function doitem(ctor) {
|
||||
out.print("AST_" + ctor.TYPE);
|
||||
const props = ctor.SELF_PROPS.filter(prop => !/^\$/.test(prop));
|
||||
|
||||
if (props.length > 0) {
|
||||
out.space();
|
||||
out.with_parens(function() {
|
||||
props.forEach(function(prop, i) {
|
||||
if (i) out.space();
|
||||
out.print(prop);
|
||||
});
|
||||
});
|
||||
}
|
||||
|
||||
if (ctor.documentation) {
|
||||
out.space();
|
||||
out.print_string(ctor.documentation);
|
||||
}
|
||||
|
||||
if (ctor.SUBCLASSES.length > 0) {
|
||||
out.space();
|
||||
out.with_block(function() {
|
||||
ctor.SUBCLASSES.forEach(function(ctor) {
|
||||
out.indent();
|
||||
doitem(ctor);
|
||||
out.newline();
|
||||
});
|
||||
});
|
||||
}
|
||||
}
|
||||
doitem(AST_Node);
|
||||
return out + "\n";
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user