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perf: build browser bundles at build-time
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,46 +1,25 @@ | ||
| "use strict"; | ||
|
|
||
| const path = require("path"); | ||
| const Promise = require("bluebird"); | ||
| const browserify = require("browserify"); | ||
| const fs = require("fs"); | ||
| const ClientBridge = require("./client-bridge"); | ||
|
|
||
| const bundlesCache = {}; | ||
|
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| exports.ClientBridge = ClientBridge; | ||
|
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| exports.build = (browser, opts = {}) => { | ||
| const script = browserify({ | ||
| entries: "./index", | ||
| basedir: path.join(__dirname, "..", "client-scripts"), | ||
| }); | ||
|
|
||
| script.transform( | ||
| { | ||
| sourcemap: false, | ||
| global: true, | ||
| compress: { screw_ie8: false }, // eslint-disable-line camelcase | ||
| mangle: { screw_ie8: false }, // eslint-disable-line camelcase | ||
| output: { screw_ie8: false }, // eslint-disable-line camelcase | ||
| }, | ||
| "uglifyify", | ||
| ); | ||
|
|
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| const lib = opts.calibration && opts.calibration.needsCompatLib ? "./lib.compat.js" : "./lib.native.js"; | ||
| const ignoreAreas = opts.supportDeprecated ? "./ignore-areas.deprecated.js" : "./ignore-areas.js"; | ||
|
|
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| script.transform( | ||
| { | ||
| aliases: { | ||
| "./lib": { relative: lib }, | ||
| "./ignore-areas": { relative: ignoreAreas }, | ||
| }, | ||
| verbose: false, | ||
| }, | ||
| "aliasify", | ||
| ); | ||
|
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| return Promise.fromCallback(cb => script.bundle(cb)).then(buf => { | ||
| const scripts = buf.toString(); | ||
|
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| return ClientBridge.create(browser, scripts); | ||
| }); | ||
| exports.build = async (browser, opts = {}) => { | ||
| const needsCompatLib = opts.calibration && opts.calibration.needsCompatLib; | ||
|
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| const scriptFileName = needsCompatLib ? "bundle.compat.js" : "bundle.js"; | ||
|
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| if (bundlesCache[scriptFileName]) { | ||
| return ClientBridge.create(browser, bundlesCache[scriptFileName]); | ||
| } | ||
|
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| const scriptFilePath = path.join(__dirname, "..", "client-scripts", scriptFileName); | ||
| const bundle = await fs.promises.readFile(scriptFilePath, { encoding: "utf8" }); | ||
| bundlesCache[scriptFileName] = bundle; | ||
|
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| return ClientBridge.create(browser, bundle); | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| const path = require("path"); | ||
| const browserify = require("browserify"); | ||
| const uglifyify = require("uglifyify"); | ||
| const aliasify = require("aliasify"); | ||
| const fs = require("fs-extra"); | ||
|
|
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| /** | ||
| * @param {object} opts | ||
| * @param {boolean} opts.needsCompatLib | ||
| * @returns {Promise<Buffer>} | ||
| */ | ||
| const bundleScript = async opts => { | ||
| const lib = opts.needsCompatLib ? "./lib.compat.js" : "./lib.native.js"; | ||
| const script = browserify({ | ||
| entries: "./scripts/index.js", | ||
| basedir: __dirname | ||
| }); | ||
|
|
||
| script.transform( | ||
| { | ||
| sourcemap: false, | ||
| global: true, | ||
| compress: { screw_ie8: false }, // eslint-disable-line camelcase | ||
| mangle: { screw_ie8: false }, // eslint-disable-line camelcase | ||
| output: { screw_ie8: false } // eslint-disable-line camelcase | ||
| }, | ||
| uglifyify | ||
| ); | ||
|
|
||
| script.transform( | ||
| { | ||
| aliases: { | ||
| "./lib": { relative: lib } | ||
| }, | ||
| verbose: false | ||
| }, | ||
| aliasify | ||
| ); | ||
|
|
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| return new Promise((resolve, reject) => { | ||
| script.bundle((err, buffer) => { | ||
| if (err) { | ||
| reject(err); | ||
| } | ||
|
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| resolve(buffer); | ||
| }); | ||
| }); | ||
| }; | ||
|
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| async function main() { | ||
| const targetDir = path.join("build", path.relative(process.cwd(), __dirname)); | ||
|
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| await fs.ensureDir(targetDir); | ||
|
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| await Promise.all( | ||
| [ | ||
| { needsCompatLib: true, fileName: "bundle.compat.js" }, | ||
| { needsCompatLib: false, fileName: "bundle.js" } | ||
| ].map(async ({ needsCompatLib, fileName }) => { | ||
| const buffer = await bundleScript({ needsCompatLib }); | ||
| const filePath = path.join(targetDir, fileName); | ||
|
|
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| await fs.writeFile(filePath, buffer); | ||
| }) | ||
| ); | ||
| } | ||
|
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| module.exports = main(); |
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