JoBoEVD/UglifyJS
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display default values in --help options (#2018)

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Alex Lam S.L
2017-05-28 22:57:20 +08:00
committed by GitHub
parent c6c9f4f5a8
commit e62b879b48
2 changed files with 11 additions and 5 deletions
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5
README.md
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@@ -45,6 +45,7 @@ a double dash to prevent input files being used as option arguments:
``` ```
-h, --help Print usage information. -h, --help Print usage information.
`--help options` for details on available options.
-V, --version Print version number. -V, --version Print version number.
-p, --parse <options> Specify parser options: -p, --parse <options> Specify parser options:
`acorn` Use Acorn for parsing. `acorn` Use Acorn for parsing.
@@ -713,14 +714,14 @@ UglifyJS.minify(code, { mangle: { toplevel: true } }).code;
### Mangle properties options ### Mangle properties options
- `reserved` (default: `[]`) -- Do not mangle property names listed in the - `reserved` (default: `[]`) -- Do not mangle property names listed in the
`reserved` array. `reserved` array.
- `regex` (default: `null`) -— Pass a RegExp literal to only mangle property - `regex` (default: `null`) -— Pass a RegExp literal to only mangle property
names matching the regular expression. names matching the regular expression.
- `keep_quoted` (default: `false`) -— Only mangle unquoted property names. - `keep_quoted` (default: `false`) -— Only mangle unquoted property names.
- `debug` (default: `false`) -— Mangle names with the original name still present. - `debug` (default: `false`) -— Mangle names with the original name still present.
Pass an empty string `""` to enable, or a non-empty string to set the debug suffix. Pass an empty string `""` to enable, or a non-empty string to set the debug suffix.
- `builtins` (default: `false`) -- Use `true` to allow the mangling of builtin - `builtins` (default: `false`) -- Use `true` to allow the mangling of builtin
DOM properties. Not recommended to override this setting. DOM properties. Not recommended to override this setting.
## Output options ## Output options

11
bin/uglifyjs
View File

@@ -21,7 +21,7 @@ var options = {
compress: false, compress: false,
mangle: false mangle: false
}; };
program.version(info.name + ' ' + info.version); program.version(info.name + " " + info.version);
program.parseArgv = program.parse; program.parseArgv = program.parse;
program.parse = undefined; program.parse = undefined;
if (process.argv.indexOf("ast") >= 0) program.helpInformation = UglifyJS.describe_ast; if (process.argv.indexOf("ast") >= 0) program.helpInformation = UglifyJS.describe_ast;
@@ -30,8 +30,13 @@ else if (process.argv.indexOf("options") >= 0) program.helpInformation = functio
var options = UglifyJS.default_options(); var options = UglifyJS.default_options();
for (var option in options) { for (var option in options) {
text.push("--" + (option == "output" ? "beautify" : option == "sourceMap" ? "source-map" : option) + " options:"); text.push("--" + (option == "output" ? "beautify" : option == "sourceMap" ? "source-map" : option) + " options:");
Object.keys(options[option]).forEach(function(name) { var defs = options[option];
text.push(" " + name); var padding = "";
Object.keys(defs).map(function(name) {
if (padding.length < name.length) padding = Array(name.length + 1).join(" ");
return [ name, JSON.stringify(defs[name]) ];
}).forEach(function(tokens) {
text.push(" " + tokens[0] + padding.slice(tokens[0].length - 2) + tokens[1]);
}); });
text.push(""); text.push("");
} }