86 lines
3.9 KiB
Plaintext
86 lines
3.9 KiB
Plaintext
/*
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The MIT License (MIT)
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Copyright (c) 2016 Ben Holloway
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/ "use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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Object.defineProperty(exports, "default", {
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enumerable: true,
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get: function() {
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return process;
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}
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});
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const _path = /*#__PURE__*/ _interop_require_default(require("path"));
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const _fileprotocol = require("./file-protocol");
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function _interop_require_default(obj) {
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return obj && obj.__esModule ? obj : {
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default: obj
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};
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}
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const ORPHAN_CR_REGEX = /\r(?!\n)(.|\n)?/g;
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function process(postcss, sourceFile, sourceContent, params) {
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// #107 libsass emits orphan CR not considered newline, postcss does consider newline (content vs source-map mismatch)
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// prepend file protocol to all sources to avoid problems with source map
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// eslint-disable-next-line @typescript-eslint/no-use-before-define
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return postcss([
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postcss.plugin("postcss-resolve-url", postcssPlugin)
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]).process(sourceContent, {
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from: (0, _fileprotocol.prepend)(sourceFile),
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map: params.outputSourceMap && {
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prev: !!params.inputSourceMap && (0, _fileprotocol.prepend)(params.inputSourceMap),
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inline: false,
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annotation: false,
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sourcesContent: true
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}
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}).then((result)=>({
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content: result.css,
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map: params.outputSourceMap ? (0, _fileprotocol.remove)(result.map.toJSON()) : null
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}));
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/**
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* Plugin for postcss that follows SASS transpilation.
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*/ function postcssPlugin() {
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return function(styles) {
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// eslint-disable-next-line @typescript-eslint/no-use-before-define
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styles.walkDecls(eachDeclaration);
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};
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/**
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* Process a declaration from the syntax tree.
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* @param declaration
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*/ function eachDeclaration(declaration) {
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const isValid = declaration.value && declaration.value.indexOf("url") >= 0;
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if (isValid) {
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// reverse the original source-map to find the original source file before transpilation
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const startPosApparent = declaration.source.start, startPosOriginal = params.sourceMapConsumer && params.sourceMapConsumer.originalPositionFor(startPosApparent);
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// we require a valid directory for the specified file
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const directory = startPosOriginal && startPosOriginal.source && (0, _fileprotocol.remove)(_path.default.dirname(startPosOriginal.source));
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if (directory) {
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declaration.value = params.transformDeclaration(declaration.value, directory);
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} else if (params.sourceMapConsumer) {
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throw new Error("source-map information is not available at url() declaration " + (ORPHAN_CR_REGEX.test(sourceContent) ? "(found orphan CR, try removeCR option)" : "(no orphan CR found)"));
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}
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}
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}
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}
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}
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//# sourceMappingURL=postcss.js.map |