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Merge pull request #108 from css-modules/move-deps-into-the-lib
Copy css-modules-loader-core sources into the repo
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@@ -2,6 +2,5 @@ sudo: false | |
| language: node_js | ||
| node_js: | ||
| - node | ||
| - 11 | ||
| - 12 | ||
| - 10 | ||
| - 8 | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,36 @@ | ||
| // Copied from https://github.com/css-modules/css-modules-loader-core | ||
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| import postcss from "postcss"; | ||
| import localByDefault from "postcss-modules-local-by-default"; | ||
| import extractImports from "postcss-modules-extract-imports"; | ||
| import scope from "postcss-modules-scope"; | ||
| import values from "postcss-modules-values"; | ||
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| import Parser from "./parser"; | ||
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| export default class Core { | ||
| constructor(plugins) { | ||
| this.plugins = plugins || Core.defaultPlugins; | ||
| } | ||
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| load(sourceString, sourcePath, trace, pathFetcher) { | ||
| let parser = new Parser(pathFetcher, trace); | ||
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| return postcss(this.plugins.concat([parser.plugin])) | ||
| .process(sourceString, { from: "/" + sourcePath }) | ||
| .then((result) => { | ||
| return { | ||
| injectableSource: result.css, | ||
| exportTokens: parser.exportTokens, | ||
| }; | ||
| }); | ||
| } | ||
| } | ||
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| // These four plugins are aliased under this package for simplicity. | ||
| Core.values = values; | ||
| Core.localByDefault = localByDefault; | ||
| Core.extractImports = extractImports; | ||
| Core.scope = scope; | ||
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| Core.defaultPlugins = [values, localByDefault, extractImports, scope]; |
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| // Copied from https://github.com/css-modules/css-modules-loader-core | ||
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| import Core from "./index.js"; | ||
| import fs from "fs"; | ||
| import path from "path"; | ||
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| // Sorts dependencies in the following way: | ||
| // AAA comes before AA and A | ||
| // AB comes after AA and before A | ||
| // All Bs come after all As | ||
| // This ensures that the files are always returned in the following order: | ||
| // - In the order they were required, except | ||
| // - After all their dependencies | ||
| const traceKeySorter = (a, b) => { | ||
| if (a.length < b.length) { | ||
| return a < b.substring(0, a.length) ? -1 : 1; | ||
| } else if (a.length > b.length) { | ||
| return a.substring(0, b.length) <= b ? -1 : 1; | ||
| } else { | ||
| return a < b ? -1 : 1; | ||
| } | ||
| }; | ||
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| export default class FileSystemLoader { | ||
| constructor(root, plugins) { | ||
| this.root = root; | ||
| this.sources = {}; | ||
| this.traces = {}; | ||
| this.importNr = 0; | ||
| this.core = new Core(plugins); | ||
| this.tokensByFile = {}; | ||
| } | ||
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| fetch(_newPath, relativeTo, _trace) { | ||
| let newPath = _newPath.replace(/^["']|["']$/g, ""), | ||
| trace = _trace || String.fromCharCode(this.importNr++); | ||
| return new Promise((resolve, reject) => { | ||
| let relativeDir = path.dirname(relativeTo), | ||
| rootRelativePath = path.resolve(relativeDir, newPath), | ||
| fileRelativePath = path.resolve( | ||
| path.join(this.root, relativeDir), | ||
| newPath | ||
| ); | ||
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| // if the path is not relative or absolute, try to resolve it in node_modules | ||
| if (newPath[0] !== "." && newPath[0] !== "/") { | ||
| try { | ||
| fileRelativePath = require.resolve(newPath); | ||
| } catch (e) { | ||
| // noop | ||
| } | ||
| } | ||
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| const tokens = this.tokensByFile[fileRelativePath]; | ||
| if (tokens) { | ||
| return resolve(tokens); | ||
| } | ||
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| fs.readFile(fileRelativePath, "utf-8", (err, source) => { | ||
| if (err) reject(err); | ||
| this.core | ||
| .load(source, rootRelativePath, trace, this.fetch.bind(this)) | ||
| .then(({ injectableSource, exportTokens }) => { | ||
| this.sources[fileRelativePath] = injectableSource; | ||
| this.traces[trace] = fileRelativePath; | ||
| this.tokensByFile[fileRelativePath] = exportTokens; | ||
| resolve(exportTokens); | ||
| }, reject); | ||
| }); | ||
| }); | ||
| } | ||
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| get finalSource() { | ||
| const traces = this.traces; | ||
| const sources = this.sources; | ||
| let written = new Set(); | ||
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| return Object.keys(traces) | ||
| .sort(traceKeySorter) | ||
| .map((key) => { | ||
| const filename = traces[key]; | ||
| if (written.has(filename)) { | ||
| return null; | ||
| } | ||
| written.add(filename); | ||
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| return sources[filename]; | ||
| }) | ||
| .join(""); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| // Copied from https://github.com/css-modules/css-modules-loader-core | ||
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| const importRegexp = /^:import\((.+)\)$/; | ||
| import replaceSymbols from "icss-replace-symbols"; | ||
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| export default class Parser { | ||
| constructor(pathFetcher, trace) { | ||
| this.pathFetcher = pathFetcher; | ||
| this.plugin = this.plugin.bind(this); | ||
| this.exportTokens = {}; | ||
| this.translations = {}; | ||
| this.trace = trace; | ||
| } | ||
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| plugin(css) { | ||
| return Promise.all(this.fetchAllImports(css)) | ||
| .then(() => this.linkImportedSymbols(css)) | ||
| .then(() => this.extractExports(css)); | ||
| } | ||
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| fetchAllImports(css) { | ||
| let imports = []; | ||
| css.each((node) => { | ||
| if (node.type == "rule" && node.selector.match(importRegexp)) { | ||
| imports.push( | ||
| this.fetchImport(node, css.source.input.from, imports.length) | ||
| ); | ||
| } | ||
| }); | ||
| return imports; | ||
| } | ||
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| linkImportedSymbols(css) { | ||
| replaceSymbols(css, this.translations); | ||
| } | ||
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| extractExports(css) { | ||
| css.each((node) => { | ||
| if (node.type == "rule" && node.selector == ":export") | ||
| this.handleExport(node); | ||
| }); | ||
| } | ||
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| handleExport(exportNode) { | ||
| exportNode.each((decl) => { | ||
| if (decl.type == "decl") { | ||
| Object.keys(this.translations).forEach((translation) => { | ||
| decl.value = decl.value.replace( | ||
| translation, | ||
| this.translations[translation] | ||
| ); | ||
| }); | ||
| this.exportTokens[decl.prop] = decl.value; | ||
| } | ||
| }); | ||
| exportNode.remove(); | ||
| } | ||
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| fetchImport(importNode, relativeTo, depNr) { | ||
| let file = importNode.selector.match(importRegexp)[1], | ||
| depTrace = this.trace + String.fromCharCode(depNr); | ||
| return this.pathFetcher(file, relativeTo, depTrace).then( | ||
| (exports) => { | ||
| importNode.each((decl) => { | ||
| if (decl.type == "decl") { | ||
| this.translations[decl.prop] = exports[decl.value]; | ||
| } | ||
| }); | ||
| importNode.remove(); | ||
| }, | ||
| (err) => console.log(err) | ||
| ); | ||
| } | ||
| } |
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