blob: 544b161a9f30e879621a594cb0b67c9e8d380648 [file] [log] [blame]
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _terser = require("terser");
function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }
function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
const buildTerserOptions = ({
ecma,
warnings,
parse = {},
compress = {},
mangle,
module,
output,
toplevel,
nameCache,
ie8,
/* eslint-disable camelcase */
keep_classnames,
keep_fnames,
/* eslint-enable camelcase */
safari10
} = {}) => ({
ecma,
warnings,
parse: _objectSpread({}, parse),
compress: typeof compress === 'boolean' ? compress : _objectSpread({}, compress),
// eslint-disable-next-line no-nested-ternary
mangle: mangle == null ? true : typeof mangle === 'boolean' ? mangle : _objectSpread({}, mangle),
output: _objectSpread({
shebang: true,
comments: false,
beautify: false,
semicolons: true
}, output),
module,
// Ignoring sourceMap from options
sourceMap: null,
toplevel,
nameCache,
ie8,
keep_classnames,
keep_fnames,
safari10
});
const buildComments = (options, terserOptions, extractedComments) => {
const condition = {};
const commentsOpts = terserOptions.output.comments; // Use /^\**!|@preserve|@license|@cc_on/i RegExp
if (typeof options.extractComments === 'boolean') {
condition.preserve = commentsOpts;
condition.extract = /^\**!|@preserve|@license|@cc_on/i;
} else if (typeof options.extractComments === 'string' || options.extractComments instanceof RegExp) {
// extractComments specifies the extract condition and commentsOpts specifies the preserve condition
condition.preserve = commentsOpts;
condition.extract = options.extractComments;
} else if (typeof options.extractComments === 'function') {
condition.preserve = commentsOpts;
condition.extract = options.extractComments;
} else if (Object.prototype.hasOwnProperty.call(options.extractComments, 'condition')) {
// Extract condition is given in extractComments.condition
condition.preserve = commentsOpts;
condition.extract = options.extractComments.condition;
} else {
// No extract condition is given. Extract comments that match commentsOpts instead of preserving them
condition.preserve = false;
condition.extract = commentsOpts;
} // Ensure that both conditions are functions
['preserve', 'extract'].forEach(key => {
let regexStr;
let regex;
switch (typeof condition[key]) {
case 'boolean':
condition[key] = condition[key] ? () => true : () => false;
break;
case 'function':
break;
case 'string':
if (condition[key] === 'all') {
condition[key] = () => true;
break;
}
if (condition[key] === 'some') {
condition[key] = (astNode, comment) => {
return comment.type === 'comment2' && /^\**!|@preserve|@license|@cc_on/i.test(comment.value);
};
break;
}
regexStr = condition[key];
condition[key] = (astNode, comment) => {
return new RegExp(regexStr).test(comment.value);
};
break;
default:
regex = condition[key];
condition[key] = (astNode, comment) => regex.test(comment.value);
}
}); // Redefine the comments function to extract and preserve
// comments according to the two conditions
return (astNode, comment) => {
if (condition.extract(astNode, comment)) {
const commentText = comment.type === 'comment2' ? `/*${comment.value}*/` : `//${comment.value}`; // Don't include duplicate comments
if (!extractedComments.includes(commentText)) {
extractedComments.push(commentText);
}
}
return condition.preserve(astNode, comment);
};
};
const minify = options => {
const {
file,
input,
inputSourceMap,
extractComments,
minify: minifyFn
} = options;
if (minifyFn) {
return minifyFn({
[file]: input
}, inputSourceMap);
} // Copy terser options
const terserOptions = buildTerserOptions(options.terserOptions); // Add source map data
if (inputSourceMap) {
terserOptions.sourceMap = {
content: inputSourceMap
};
}
const extractedComments = [];
if (extractComments) {
terserOptions.output.comments = buildComments(options, terserOptions, extractedComments);
}
const {
error,
map,
code,
warnings
} = (0, _terser.minify)({
[file]: input
}, terserOptions);
return {
error,
map,
code,
warnings,
extractedComments
};
};
var _default = minify;
exports.default = _default;