{"id":10005977,"date":"2022-07-22T11:56:56","date_gmt":"2022-07-22T03:56:56","guid":{"rendered":"https:\/\/ityet.com\/?p=10005977"},"modified":"2022-07-22T11:56:56","modified_gmt":"2022-07-22T03:56:56","slug":"esbuild-%e6%9e%84%e5%bb%ba%e6%b2%b9%e7%8c%b4%e8%84%9a%e6%9c%ac","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10005977","title":{"rendered":"esbuild \u6784\u5efa\u6cb9\u7334\u811a\u672c"},"content":{"rendered":"

\u524d\u6bb5\u65f6\u95f4\u601d\u5426\u5341\u5468\u5e74\uff0c\u641e\u4e86\u4e2a\u95ee\u7b54\u6253\u5361\u6d3b\u52a8\u3002\u53c2\u4e0e\u6253\u5361\u6d3b\u52a8\u7684\u4eba\u9700\u8981\u5728\u56de\u7b54\u95ee\u9898\u7684\u7ed3\u5c3e\u52a0\u4e00\u4e2a\u201c\u5c0f\u5c3e\u5df4\u201d\u3002\u52a0\u5c0f\u5c3e\u5df4\u672c\u8eab\u5e76\u4e0d\u96be\uff0c\u4f46\u662f\u7531\u4e8e\u5b98\u65b9\u6ca1\u6709\u63d0\u4f9b\u5feb\u6377\u65b9\u5f0f\uff0c\u6bcf\u6b21\u90fd\u9700\u8981\u81ea\u5df1\u4ece\u67d0\u4e2a\u5730\u65b9\u62f7\u8d1d\u8fc7\u53bb\uff0c\u7a0d\u5acc\u7e41\u7410\u3002\u6b63\u597d\u524d\u4e0d\u4e45\u521a\u88c5\u4e86\u6cb9\u7334\u63d2\u4ef6\uff0c\u5c31\u60f3\uff1a\u81ea\u5df1\u7ed9\u7f16\u8f91\u5668\u6ce8\u5165\u4e00\u4e2a\u6309\u94ae\u7528\u6765\u6dfb\u52a0\u5c0f\u5c3e\u5df4\u5982\u4f55\uff1f<\/p>\n

\u5728\u4f7f\u7528\u6cb9\u7334\u4e4b\u524d\uff0c\u4f7f\u7528\u8fc7\u4e00\u4e2a\u53eb\u201cUser JavaScript and CSS\u201d\u7684\u63d2\u4ef6\uff0c\u53ef\u4ee5\u5bf9\u7279\u5b9a\u7684\u7f51\u9875\u6ce8\u5165\u811a\u672c\u548c\u6837\u5f0f\u3002\u4e0d\u8fc7\u8fd9\u4e2a\u63d2\u4ef6\u5728 Edge \u5e02\u573a\u4e2d\u6ca1\u6709\uff0c\u53ea\u80fd\u4ece Chrome \u5e02\u573a\u5b89\u88c5\uff0c\u5b89\u88c5\u6709\u70b9\u56f0\u96be\u3002\u540e\u6765\u53c8\u53bb Edge \u5e02\u573a\u4e2d\u627e\u5230\u4e00\u4e2a\u201cPage Manipulator\u201d\u4e5f\u80fd\u5b9e\u73b0\u7c7b\u4f3c\u7684\u529f\u80fd\u3002\u4e4b\u6240\u4ee5\u4e00\u76f4\u6ca1\u7528\u6cb9\u7334\uff0c\u4e3b\u8981\u662f\u6cb9\u7334\u8981\u6ce8\u5165\u6837\u5f0f\u8868\u5f97\u81ea\u5df1\u5199\u4ee3\u7801\uff0c\u61d2\u5f97\u5199\u3002<\/p><\/blockquote>\n

\u6ce8\u5165\u5c0f\u5c3e\u5df4\u7684\u811a\u672c\u4e0d\u96be\uff0c\u4e5f\u4e0d\u662f\u672c\u6587\u7684\u91cd\u70b9\u3002\u91cd\u70b9\u662f\u811a\u672c\u5206\u4eab\u51fa\u53bb\u4e4b\u540e\uff0c\u6536\u5230\u4e00\u4e9b\u201c\u811a\u672c\u4e0d\u53ef\u7528\u201d\u7684\u53cd\u9988\u3002\u867d\u7136\u8bf4\u6d4f\u89c8\u51e0\u4e4e\u90fd\u662f\u7528\u7684 Chrome\/Edge \u6216\u8005 Chrome \u6838\u5fc3\u7684\u6d4f\u89c8\u5668\uff0c\u4f46\u6bd5\u7adf\u7248\u672c\u5b58\u5728\u5dee\u5f02\uff0c\u6709\u4e9b\u7248\u672c\u8fd8\u4e0d\u652f\u6301 ??<\/code> \u3001 ?.<\/code> \u548c ??=<\/code> \u7b49\u3002<\/p>\n

\u8bf4\u8d77\u6765\uff0c\u6539\u4e00\u4e0b\u8fd0\u7b97\u7b26\u5e76\u4e0d\u96be\uff0c\u6bd5\u7adf\u6ca1\u6709\u8fd9\u4e9b\u65b0\u8fd0\u7b97\u7b26\u7684\u65f6\u5019\uff0cJavaScript \u7a0b\u5e8f\u8fd8\u4e0d\u662f\u4e00\u6837\u7684\u5199\u3002\u4e0d\u8fc7\u6709\u65b0\u8bed\u6cd5\u4e0d\u80fd\u7528\u662f\u771f\u7684\u96be\u53d7\u3002\u5982\u679c\u4ecd\u7136\u60f3\u7528\u65b0\u8bed\u6cd5\uff0c\u53c8\u60f3\u517c\u5bb9\u66f4\u591a\u6d4f\u89c8\u5668\uff0c\u90a3\u5c31\u53ea\u6709\u201c\u7f16\u8bd1\u201d\u8fd9\u4e2a\u529e\u6cd5\u4e86\u3002<\/p>\n

Webpack \u6709\u70b9\u91cd\uff0c\u4e3a\u8fd9\u51e0\u884c\u811a\u672c\u5efa\u4e2a\u5de5\u7a0b\uff0c\u5f15\u5165 Webpack \u4e0d\u592a\u503c\u5f97\u3002\u60f3\u8d77\u4e4b\u524d\u542c\u8bf4\u8fc7\u7684\u8f7b\u91cf\u5feb\u901f\u7684 esbuild\uff0c\u51b3\u5b9a\u8bd5\u8bd5\u3002<\/p>\n

\u679c\u7136\uff0c\u4e00\u884c\u547d\u4ee4\u641e\u5b9a\uff1a<\/p>\n

npx esbuild src\/add-tail.js --outfile=dist\/add-tail.js --target=chrome77<\/code><\/pre>\n
?.<\/code> \u548c ??<\/code> \u90fd\u88ab\u7ffb\u8bd1\u6210\u4e86\u8ddf null<\/code> \u8fdb\u884c\u6bd4\u8f83\uff0c\u867d\u7136\u662f\u7528\u7684 ==<\/code> \u800c\u4e0d\u662f ===<\/code>\uff0c\u4f46\u662f\u8fd9\u4e2a\u7ed3\u679c\u8fd8\u7b97\u6ee1\u610f\u3002\u6bd5\u7adf\u5982\u679c\u7528 ===<\/code> \u8fd8\u9700\u8981\u8ddf undefined<\/code> \u8fdb\u884c\u5bf9\u6bd4\u3002<\/p>\n
\u751a\u81f3\uff0c\u5982\u679c\u52a0\u4e0a\u4e86 --bundle<\/code> \u53c2\u6570\uff0c\u8fd8\u53ef\u4ee5\u5bf9\u6e90\u6587\u4ef6\u8fdb\u884c\u62c6\u5206\uff0c\u4f7f\u7528 ESM \u6765\u5206\u5757\u7f16\u5199\u4ee3\u7801\uff0c\u89e3\u8026\u548c\u590d\u7528\u4e5f\u4e0d\u803d\u8bef\u4e86\u3002<\/p>\n
\u6b63\u51c6\u5907\u5b8c\u7f8e\u6536\u5de5\uff0c\u7a81\u7136\u5c31\u53d1\u73b0\u4e86\u95ee\u9898 \u2014\u2014 \u7528\u6ce8\u91ca\u5199\u7684\u811a\u672c\u5934\u4fe1\u606f\u4e0d\u89c1\u4e86\uff01\u867d\u7136\u53ef\u4ee5\u627e\u4e2a\u5730\u65b9\u4fdd\u5b58\u5934\u4fe1\u606f\uff0c\u518d\u624b\u5de5\u8865\u5230\u8f6c\u8bd1\u7ed3\u679c\u4e4b\u524d\uff0c\u4f46\u662f\u8fd9\u6837\u505a\u7d2f\u554a\uff01\u5728\u7f51\u4e0a\u8f6c\u60a0\u4e86\u534a\u5929\uff0c\u786e\u5b9e\u6ca1\u627e\u5230\u4ec0\u4e48\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n
esbuild \u867d\u7136\u63d0\u4f9b\u4e86 --banner<\/code> \u53c2\u6570\uff0c\u4f46\u6709\u4e24\u4e2a\u95ee\u9898\uff1a<\/p>\n
    \n
  1. \u811a\u672c\u5934\u592a\u957f\uff0c\u8fd8\u662f\u591a\u884c\uff0c\u7528 --banner<\/code> \u53c2\u6570\u4e5f\u4e0d\u597d\u52a0\uff1b<\/li>\n
  2. \u5982\u679c\u9700\u8981\u540c\u65f6\u8f6c\u8bd1\u591a\u4e2a\u811a\u672c\uff0c\u6ca1\u529e\u6cd5\u52a8\u6001\u5730\u4e3a\u6bcf\u4e2a\u811a\u672c\u4fee\u6539 banner\u3002<\/li>\n<\/ol>\n
    \u601d\u6765\u60f3\u53bb\uff0c\u53ea\u6709\u5229\u7528 esbuild \u7684 API \u63a5\u53e3\uff0c\u5199\u6bb5\u7a0b\u5e8f\u6765\u8f6c\u8bd1\uff0c\u5e76\u5728\u8f6c\u8bd1\u4e4b\u540e\u7528\u7a0b\u5e8f\u628a\u811a\u672c\u5934\u8865\u8fdb\u53bb\u3002\u7a0b\u5e8f\u5199\u5728 build.js<\/code> \u4e2d\uff0c\u57fa\u672c\u7684\u8f6c\u8bd1\u8fc7\u7a0b\u65e0\u975e\u5c31\u662f\u628a\u547d\u4ee4\u884c\u53c2\u6570\u6539\u4e3a\u51fd\u6570\u8c03\u7528\uff0c\u5012\u4e5f\u7b80\u5355<\/p>\n
    const result = await build({\n    logLevel: "info",\n    outdir: distDir,\n    entryPoints,\n    bundle: true,\n    target: ["chrome77"],\n    metafile: true,\n}).catch(() => process.exit(1));\n\nconst analyzeResult = await analyzeMetafile(result.metafile);\nconsole.log(analyzeResult);<\/code><\/pre>\n
    \u5176\u4e2d\uff0c distDir<\/code> \u914d\u7f6e\u4e3a "dist"<\/code> \u76ee\u5f55\u3002\u800c entryPoints<\/code> \u5219\u662f\u7528 Node \u7684 fs \u63a5\u53e3\u5728 "src"<\/code> \u76ee\u5f55\u4e0b\u627e\u51fa\u6765\u7684\u7b2c\u4e00\u5c42\u811a\u672c\u6587\u4ef6\uff0c\u6709\u591a\u5c11\u7b97\u591a\u5c11\uff0c\u4e0d\u627e\u5b50\u76ee\u5f55\uff08\u8fd9\u6837\u5c31\u53ef\u4ee5\u628a\u62c6\u5206\u7684\u5b50\u6a21\u5757\u653e\u5728\u5b50\u76ee\u5f55\u4e2d\u53bb\uff09\uff1a<\/p>\n
    const srcDir = path.resolve(".\/src");\nconst distDir = path.resolve(".\/dist");\n\nconst entryNames = (await fs.readdir(srcDir, { withFileTypes: true }))\n    .filter(entry => entry.isFile() && \/\/.js$\/.test(entry.name))\n    .map(({ name }) => name);\n\nconst entryPoints = entryNames.map(filename => path.resolve(srcDir, filename));<\/code><\/pre>\n
    \u53ea\u6709\u8f93\u51fa\u5206\u6790\u7ed3\u679c\u8fd9\u91cc\u8d39\u4e86\u70b9\u8111\u7b4b\uff0c\u547d\u4ee4\u884c\u4e0b\u662f\u4e00\u4e2a\u53c2\u6570\uff0c\u8fd9\u91cc\u9700\u8981\u8c03\u7528\u53e6\u4e00\u4e2a\u63a5\u53e3\u3002<\/p>\n
    \u5904\u7406\u811a\u672c\u5934\u7684\u601d\u8def\u5f88\u6e05\u6670\uff1a\u5728 build()<\/code> \u4e4b\u524d\uff0c\u53ef\u4ee5\u5148\u8bfb\u53d6\u6e90\u6587\u4ef6\uff0c\u628a\u811a\u672c\u5934\u63d0\u53d6\u51fa\u6765\u3002\u5728 build()<\/code> \u4e4b\u540e\uff0c\u8bfb\u53d6\u8f93\u51fa\u6587\u4ef6\uff0c\u628a\u811a\u672c\u5934\u52a0\u8fdb\u53bb\u91cd\u65b0\u4fdd\u5b58\u4e00\u6b21\u3002<\/p>\n
    \u67e5\u4e86\u4e00\u4e0b esbuild \u7684\u6587\u6863\uff0c\u53d1\u73b0\u53ef\u4ee5\u7528\u5b83\u7684\u63d2\u4ef6\u673a\u5236\u6765\u5b9e\u73b0\u3002\u5728\u63d2\u4ef6 onLoad<\/code> \u4e8b\u4ef6\u4e2d\u9700\u8981\u8bfb\u4e00\u6b21\u6587\u4ef6\uff0c\u5728\u8fd9\u91cc\u8bfb\u4e86\u5c31\u4e0d\u9700\u8981\u6784\u5efa\u4e4b\u524d\u591a\u8bfb\u4e00\u6b21\u4e86\u3002\u800c onEnd<\/code>\u4e8b\u4ef6\u4e2d\u53ef\u4ee5\u5148\u5224\u65ad\u6784\u5efa\u8fc7\u7a0b\u662f\u5426\u51fa\u9519\uff0c\u5728\u6ca1\u51fa\u9519\u7684\u60c5\u51b5\u4e0b\u6ce8\u5165\u811a\u672c\u5934\u5c31\u597d\u3002<\/p>\n
    const plugin = {\n    name: "sf-script-plugin",\n    setup(build) {\n        build.headers = {};\n        build.onLoad({ filter: \/src[\/\/\/][^\/\/\/]+\/.js$\/ }, async (args) => {\n            const contents = await fs.readFile(args.path, "utf8");\n            build.headers[path.relative(srcDir, args.path)] = extractHeaders(contents);\n            return { contents };\n        });\n        build.onEnd(result => {\n            if (result.errors.length) { return; }\n            Object.entries(build.headers)\n                .forEach(([filename, header]) => insertHeader(filename, header));\n        });\n    }\n};\n\nfunction extractHeaders(contents) {\n    return contents.match(\/^.*?\/\/\/\/ ==\/\/UserScript==\/s)?.[0];\n}\n\nasync function insertHeader(filename, header) {\n    const filePath = path.resolve(distDir, filename);\n    const content = await fs.readFile(filePath, "utf8");\n    fs.writeFile(filePath, [header, content].join("\/n\/n"));\n}<\/code><\/pre>\n
    \u5f53\u7136\uff0cbuild \u8fc7\u7a0b\u4e0d\u8981\u5fd8\u4e86\u52a0 plugins<\/code> \u53c2\u6570<\/p>\n
    await build({\n    ...\n    plugins: [plugin],\n}<\/code><\/pre>\n
    \u5728\u5199 onLoad<\/code> \u7684\u65f6\u5019\u8e29\u4e86\u70b9\u5751\uff0c\u4e3b\u8981\u5c31\u662f filter<\/code> \u8981\u628a src<\/code> \u76ee\u5f55\u4e0b\u7684\u6240\u6709 .js<\/code> \u5305\u542b\u5728\u5185\uff0c\u4f46\u8981\u6392\u9664\u6389\u6240\u6709\u5b50\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\u3002<\/p>\n
    \u4ee3\u7801\u5b8c\u6210\uff0c\u5c1d\u8bd5\u4e86\u4e00\u4e0b\uff0c\u5b8c\u7f8e\uff01<\/p>\n
    node .\/build.js<\/code><\/pre>\n
    https:\/\/segmentfault.com\/a\/1190000042036660<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
    \u524d\u6bb5\u65f6\u95f4\u601d\u5426\u5341\u5468\u5e74\uff0c\u641e\u4e86\u4e2a\u95ee\u7b54\u6253\u5361\u6d3b\u52a8\u3002\u53c2\u4e0e\u6253\u5361\u6d3b\u52a8\u7684\u4eba\u9700\u8981\u5728\u56de\u7b54\u95ee\u9898\u7684\u7ed3\u5c3e\u52a0\u4e00\u4e2a\u201c\u5c0f\u5c3e\u5df4\u201d\u3002\u52a0\u5c0f\u5c3e\u5df4\u672c\u8eab\u5e76\u4e0d […]<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[],"tags":[],"class_list":["post-10005977","post","type-post","status-publish","format-standard","hentry"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10005977","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10005977"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10005977\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10005977"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10005977"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10005977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}