@modern-js/module-tools
Version:
Simple, powerful, high-performance modern npm package development solution.
124 lines (123 loc) • 4.26 kB
JavaScript
;
var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
for (var name in all)
__defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
if (from && typeof from === "object" || typeof from === "function") {
for (let key of __getOwnPropNames(from))
if (!__hasOwnProp.call(to, key) && key !== except)
__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
}
return to;
};
var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
// If the importer is in node compatibility mode or this is not an ESM
// file that has been converted to a CommonJS file using a Babel-
// compatible transform (i.e. "__esModule" has not been set), then set
// "default" to the CommonJS "module.exports" for node compatibility.
isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var utils_exports = {};
__export(utils_exports, {
loadProcessor: () => loadProcessor,
rebaseUrls: () => rebaseUrls,
rewriteCssUrls: () => rewriteCssUrls
});
module.exports = __toCommonJS(utils_exports);
var import_fs = __toESM(require("fs"));
var import_path = __toESM(require("path"));
var import_utils = require("../../../utils");
const cache = {};
function loadProcessor(lang, root, implementation) {
if (cache[lang]) {
return cache[lang];
}
try {
if (typeof implementation === "string") {
return cache[lang] = require(implementation);
}
if (typeof implementation === "object") {
return cache[lang] = implementation;
}
const loadPath = require.resolve(lang, {
paths: [
root
]
});
return cache[lang] = require(loadPath);
} catch (err) {
throw new Error(`${lang} require failed, please install it or use implemention`);
}
}
const dataUrlRE = /^\s*data:/i;
const cssUrlRE = RegExp(`(?<=^|[^\\w\\-\\u0080-\\uffff])url\\(\\s*('[^']+'|"[^"]+"|[^'")]+)\\s*\\)`);
const externalRE = /^(https?:)?\/\//;
const isDataUrl = (url) => dataUrlRE.test(url);
const isExternalUrl = (url) => externalRE.test(url);
async function rebaseUrls(filepath, rootDir, resolver) {
const file = import_path.default.resolve(filepath);
const fileDir = import_path.default.dirname(file);
if (fileDir === rootDir) {
return {
file
};
}
const content = import_fs.default.readFileSync(file, "utf-8");
if (!cssUrlRE.test(content)) {
return {
file
};
}
try {
const rebased = await rewriteCssUrls(content, import_path.default.extname(file).slice(1), (url) => {
if (url.startsWith("/")) {
return url;
}
return resolver(url, fileDir);
});
return {
file,
contents: rebased
};
} catch (e) {
return {
file
};
}
}
async function rewriteCssUrls(css, type, replacer) {
let match;
let remaining = css;
let rewritten = "";
while (match = cssUrlRE.exec(remaining)) {
rewritten += remaining.slice(0, match.index);
const matched = match[0];
let rawUrl = match[1];
let wrap = "";
const first = rawUrl[0];
if (first === `"` || first === `'`) {
wrap = first;
rawUrl = rawUrl.slice(1, -1);
}
const result = type === "less" && rawUrl.startsWith("@") || (type === "sass" || type === "scss") && rawUrl.startsWith("$") || isExternalUrl(rawUrl) || isDataUrl(rawUrl) || rawUrl.startsWith("#") ? matched : `url(${wrap}${(0, import_utils.normalizeSlashes)(await replacer(rawUrl))}${wrap})`;
rewritten += result;
remaining = remaining.slice(match.index + match[0].length);
}
rewritten += remaining;
return rewritten;
}
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
loadProcessor,
rebaseUrls,
rewriteCssUrls
});