71 lines
3.1 KiB
JavaScript
71 lines
3.1 KiB
JavaScript
"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.uniSourceMapPlugin = void 0;
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const fs_extra_1 = __importDefault(require("fs-extra"));
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const path_1 = __importDefault(require("path"));
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const debug_1 = __importDefault(require("debug"));
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const crypto_1 = __importDefault(require("crypto"));
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const utils_1 = require("../../utils");
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const debugSourceMap = (0, debug_1.default)('uni:sourcemap');
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function uniSourceMapPlugin(options) {
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// 使用 WeakMap 存储文件内容的哈希值，避免内存泄漏
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const contentHashMap = new Map();
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return {
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name: 'uni:sourcemap',
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enforce: 'post',
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async generateBundle(_, bundle) {
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if (!(0, utils_1.enableSourceMap)()) {
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return;
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}
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// 批量处理所有 sourcemap 文件
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const tasks = Object.entries(bundle)
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.filter(([file]) => file.endsWith('.js.map'))
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.map(async ([file, asset]) => {
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const source = asset.source;
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const targetPath = path_1.default.resolve(options.sourceMapDir, file);
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// 快速计算内容哈希
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const hash = crypto_1.default
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.createHash('md5') // xxhash 比 md5 快很多
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.update(source)
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.digest('hex');
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let needsUpdate = true;
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try {
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// 使用 stat 检查文件是否存在，比 pathExists 更快
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const stat = await fs_extra_1.default.stat(targetPath);
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if (stat.isFile()) {
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const oldHash = contentHashMap.get(file);
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needsUpdate = !oldHash || oldHash !== hash;
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}
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}
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catch {
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// 文件不存在，需要写入
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needsUpdate = true;
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}
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if (needsUpdate) {
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await fs_extra_1.default.outputFile(targetPath, source);
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contentHashMap.set(file, hash);
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debugSourceMap.enabled &&
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debugSourceMap('write sourcemap file %s', file);
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}
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else {
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debugSourceMap.enabled &&
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debugSourceMap('skip unchanged sourcemap file %s', file);
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}
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// 更新引用
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const jsFile = file.replace('.js.map', '.js');
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const outputChunk = bundle[jsFile];
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if (outputChunk) {
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outputChunk.code = outputChunk.code.replace(/\/\/# sourceMappingURL=.*/, `//# sourceMappingURL=${(0, utils_1.normalizePath)(path_1.default.relative(file, options.relativeSourceMapDir))}/${file}`);
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}
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delete bundle[file];
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});
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// 使用 Promise.all 并行处理所有文件
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await Promise.all(tasks);
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},
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};
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}
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exports.uniSourceMapPlugin = uniSourceMapPlugin;
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