173 lines
17 KiB
JavaScript
173 lines
17 KiB
JavaScript
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"use strict";
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exports.__esModule = true;
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exports.default = void 0;
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var _sourceMap = _interopRequireDefault(require("source-map"));
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var _path = _interopRequireDefault(require("path"));
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var _fs = _interopRequireDefault(require("fs"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function fromBase64(str) {
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if (Buffer) {
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return Buffer.from(str, 'base64').toString();
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} else {
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return window.atob(str);
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}
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}
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/**
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* Source map information from input CSS.
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* For example, source map after Sass compiler.
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*
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* This class will automatically find source map in input CSS or in file system
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* near input file (according `from` option).
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*
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* @example
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* const root = postcss.parse(css, { from: 'a.sass.css' })
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* root.input.map //=> PreviousMap
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*/
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var PreviousMap = /*#__PURE__*/function () {
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/**
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* @param {string} css Input CSS source.
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* @param {processOptions} [opts] {@link Processor#process} options.
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*/
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function PreviousMap(css, opts) {
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this.loadAnnotation(css);
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/**
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* Was source map inlined by data-uri to input CSS.
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*
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* @type {boolean}
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*/
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this.inline = this.startWith(this.annotation, 'data:');
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var prev = opts.map ? opts.map.prev : undefined;
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var text = this.loadMap(opts.from, prev);
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if (text) this.text = text;
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}
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/**
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* Create a instance of `SourceMapGenerator` class
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* from the `source-map` library to work with source map information.
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*
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* It is lazy method, so it will create object only on first call
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* and then it will use cache.
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*
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* @return {SourceMapGenerator} Object with source map information.
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*/
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var _proto = PreviousMap.prototype;
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_proto.consumer = function consumer() {
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if (!this.consumerCache) {
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this.consumerCache = new _sourceMap.default.SourceMapConsumer(this.text);
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}
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return this.consumerCache;
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}
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/**
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* Does source map contains `sourcesContent` with input source text.
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*
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* @return {boolean} Is `sourcesContent` present.
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*/
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;
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_proto.withContent = function withContent() {
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return !!(this.consumer().sourcesContent && this.consumer().sourcesContent.length > 0);
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};
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_proto.startWith = function startWith(string, start) {
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if (!string) return false;
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return string.substr(0, start.length) === start;
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};
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_proto.getAnnotationURL = function getAnnotationURL(sourceMapString) {
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return sourceMapString.match(/\/\*\s*# sourceMappingURL=(.*)\s*\*\//)[1].trim();
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};
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_proto.loadAnnotation = function loadAnnotation(css) {
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var annotations = css.match(/\/\*\s*# sourceMappingURL=(.*)\s*\*\//mg);
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if (annotations && annotations.length > 0) {
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// Locate the last sourceMappingURL to avoid picking up
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// sourceMappingURLs from comments, strings, etc.
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var lastAnnotation = annotations[annotations.length - 1];
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if (lastAnnotation) {
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this.annotation = this.getAnnotationURL(lastAnnotation);
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}
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}
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};
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_proto.decodeInline = function decodeInline(text) {
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var baseCharsetUri = /^data:application\/json;charset=utf-?8;base64,/;
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var baseUri = /^data:application\/json;base64,/;
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var uri = 'data:application/json,';
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if (this.startWith(text, uri)) {
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return decodeURIComponent(text.substr(uri.length));
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}
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if (baseCharsetUri.test(text) || baseUri.test(text)) {
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return fromBase64(text.substr(RegExp.lastMatch.length));
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}
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var encoding = text.match(/data:application\/json;([^,]+),/)[1];
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throw new Error('Unsupported source map encoding ' + encoding);
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};
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_proto.loadMap = function loadMap(file, prev) {
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if (prev === false) return false;
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if (prev) {
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if (typeof prev === 'string') {
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return prev;
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} else if (typeof prev === 'function') {
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var prevPath = prev(file);
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if (prevPath && _fs.default.existsSync && _fs.default.existsSync(prevPath)) {
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return _fs.default.readFileSync(prevPath, 'utf-8').toString().trim();
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} else {
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throw new Error('Unable to load previous source map: ' + prevPath.toString());
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}
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} else if (prev instanceof _sourceMap.default.SourceMapConsumer) {
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return _sourceMap.default.SourceMapGenerator.fromSourceMap(prev).toString();
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} else if (prev instanceof _sourceMap.default.SourceMapGenerator) {
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return prev.toString();
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} else if (this.isMap(prev)) {
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return JSON.stringify(prev);
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} else {
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throw new Error('Unsupported previous source map format: ' + prev.toString());
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}
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} else if (this.inline) {
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return this.decodeInline(this.annotation);
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} else if (this.annotation) {
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var map = this.annotation;
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if (file) map = _path.default.join(_path.default.dirname(file), map);
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this.root = _path.default.dirname(map);
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if (_fs.default.existsSync && _fs.default.existsSync(map)) {
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return _fs.default.readFileSync(map, 'utf-8').toString().trim();
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} else {
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return false;
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}
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}
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};
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_proto.isMap = function isMap(map) {
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if (typeof map !== 'object') return false;
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return typeof map.mappings === 'string' || typeof map._mappings === 'string';
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};
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return PreviousMap;
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}();
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var _default = PreviousMap;
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exports.default = _default;
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module.exports = exports.default;
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//# sourceMappingURL=data:application/json;charset=utf8;base64,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