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generate_injected.js
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generate_injected.js
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#!/usr/bin/env node
/**
* Copyright (c) Microsoft Corporation. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// @ts-check
const fs = require('fs');
const path = require('path');
const ROOT = path.join(__dirname, '..');
const esbuild = require('esbuild');
/**
* @type {[string, string, string, boolean][]}
*/
const injectedScripts = [
[
path.join(ROOT, 'packages', 'playwright-core', 'src', 'server', 'injected', 'utilityScript.ts'),
path.join(ROOT, 'packages', 'playwright-core', 'lib', 'server', 'injected', 'packed'),
path.join(ROOT, 'packages', 'playwright-core', 'src', 'generated'),
true,
],
[
path.join(ROOT, 'packages', 'playwright-core', 'src', 'server', 'injected', 'injectedScript.ts'),
path.join(ROOT, 'packages', 'playwright-core', 'lib', 'server', 'injected', 'packed'),
path.join(ROOT, 'packages', 'playwright-core', 'src', 'generated'),
true,
],
[
path.join(ROOT, 'packages', 'playwright-core', 'src', 'server', 'injected', 'consoleApi.ts'),
path.join(ROOT, 'packages', 'playwright-core', 'lib', 'server', 'injected', 'packed'),
path.join(ROOT, 'packages', 'playwright-core', 'src', 'generated'),
true,
],
[
path.join(ROOT, 'packages', 'playwright-core', 'src', 'server', 'injected', 'recorder', 'recorder.ts'),
path.join(ROOT, 'packages', 'playwright-core', 'lib', 'server', 'injected', 'packed'),
path.join(ROOT, 'packages', 'playwright-core', 'src', 'generated'),
true,
],
[
path.join(ROOT, 'packages', 'playwright-ct-core', 'src', 'injected', 'index.ts'),
path.join(ROOT, 'packages', 'playwright-ct-core', 'lib', 'injected', 'packed'),
path.join(ROOT, 'packages', 'playwright-ct-core', 'src', 'generated'),
false,
]
];
const modulePrefix = `
var __commonJS = obj => {
let required = false;
let result;
return function __require() {
if (!required) {
required = true;
let fn;
for (const name in obj) { fn = obj[name]; break; }
const module = { exports: {} };
fn(module.exports, module);
result = module.exports;
}
return result;
}
};
var __export = (target, all) => {for (var name in all) target[name] = all[name];};
var __toESM = mod => ({ ...mod, 'default': mod });
var __toCommonJS = mod => ({ ...mod, __esModule: true });
`;
async function replaceEsbuildHeader(content, outFileJs) {
let sourcesStart = content.indexOf('__toCommonJS');
if (sourcesStart !== -1)
sourcesStart = content.indexOf('\n', sourcesStart);
if (sourcesStart === -1)
throw new Error(`Did not find start of bundled code in ${outFileJs}`);
const preamble = content.substring(0, sourcesStart);
// Replace standard esbuild definition with our own which do not depend on builtins.
// See https://github.com/microsoft/playwright/issues/17029
if (preamble.indexOf('__toCommonJS') !== -1) {
content = modulePrefix + content.substring(sourcesStart);
await fs.promises.writeFile(outFileJs, content);
}
return content;
}
const inlineCSSPlugin = {
name: 'inlineCSSPlugin',
setup(build) {
build.onLoad({ filter: /\.css$/ }, async (args) => {
const f = await fs.promises.readFile(args.path)
const css = await esbuild.transform(f, { loader: 'css', minify: true });
return { loader: 'text', contents: css.code };
});
},
};
(async () => {
for (const [injected, outdir, generatedFolder, hasExports] of injectedScripts) {
await fs.promises.mkdir(generatedFolder, { recursive: true });
const buildOutput = await esbuild.build({
entryPoints: [injected],
bundle: true,
outdir,
format: 'cjs',
platform: 'browser',
target: 'ES2019',
plugins: [inlineCSSPlugin],
});
for (const message of [...buildOutput.errors, ...buildOutput.warnings])
console.log(message.text);
const baseName = path.basename(injected);
const outFileJs = path.join(outdir, baseName.replace('.ts', '.js'));
let content = await fs.promises.readFile(outFileJs, 'utf-8');
if (hasExports)
content = await replaceEsbuildHeader(content, outFileJs);
const newContent = `export const source = ${JSON.stringify(content)};`;
await fs.promises.writeFile(path.join(generatedFolder, baseName.replace('.ts', 'Source.ts')), newContent);
}
})();