mirror of
https://github.com/danog/code-server.git
synced 2024-12-16 03:07:04 +01:00
373 lines
12 KiB
TypeScript
373 lines
12 KiB
TypeScript
import * as cp from "child_process"
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import * as fs from "fs-extra"
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import Bundler from "parcel-bundler"
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import * as path from "path"
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import * as util from "util"
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enum Task {
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Build = "build",
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Watch = "watch",
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}
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class Builder {
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private readonly rootPath = path.resolve(__dirname, "..")
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private readonly vscodeSourcePath = path.join(this.rootPath, "lib/vscode")
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private readonly buildPath = path.join(this.rootPath, "build")
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private readonly codeServerVersion: string
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private currentTask?: Task
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public constructor() {
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this.ensureArgument("rootPath", this.rootPath)
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this.codeServerVersion = this.ensureArgument(
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"codeServerVersion",
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process.env.VERSION || require(path.join(this.rootPath, "package.json")).version,
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)
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}
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public run(task: Task | undefined): void {
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this.currentTask = task
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this.doRun(task).catch((error) => {
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console.error(error.message)
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process.exit(1)
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})
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}
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private async task<T>(message: string, fn: () => Promise<T>): Promise<T> {
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const time = Date.now()
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this.log(`${message}...`, !process.env.CI)
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try {
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const t = await fn()
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process.stdout.write(`took ${Date.now() - time}ms\n`)
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return t
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} catch (error) {
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process.stdout.write("failed\n")
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throw error
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}
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}
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/**
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* Writes to stdout with an optional newline.
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*/
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private log(message: string, skipNewline = false): void {
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process.stdout.write(`[${this.currentTask || "default"}] ${message}`)
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if (!skipNewline) {
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process.stdout.write("\n")
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}
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}
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private async doRun(task: Task | undefined): Promise<void> {
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if (!task) {
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throw new Error("No task provided")
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}
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switch (task) {
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case Task.Watch:
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return this.watch()
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case Task.Build:
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return this.build()
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default:
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throw new Error(`No task matching "${task}"`)
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}
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}
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/**
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* Make sure the argument is set. Display the value if it is.
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*/
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private ensureArgument(name: string, arg?: string): string {
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if (!arg) {
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throw new Error(`${name} is missing`)
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}
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this.log(`${name} is "${arg}"`)
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return arg
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}
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/**
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* Build VS Code and code-server.
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*/
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private async build(): Promise<void> {
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process.env.NODE_OPTIONS = "--max-old-space-size=32384 " + (process.env.NODE_OPTIONS || "")
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process.env.NODE_ENV = "production"
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await this.task("cleaning up old build", async () => {
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if (!process.env.SKIP_VSCODE) {
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return fs.remove(this.buildPath)
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}
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// If skipping VS Code, keep the existing build if any.
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try {
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const files = await fs.readdir(this.buildPath)
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return Promise.all(files.filter((f) => f !== "lib").map((f) => fs.remove(path.join(this.buildPath, f))))
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} catch (error) {
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if (error.code !== "ENOENT") {
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throw error
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}
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}
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})
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const commit = require(path.join(this.vscodeSourcePath, "build/lib/util")).getVersion(this.rootPath) as string
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if (!process.env.SKIP_VSCODE) {
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await this.buildVscode(commit)
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} else {
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this.log("skipping vs code build")
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}
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await this.buildCodeServer(commit)
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this.log(`final build: ${this.buildPath}`)
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}
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private async buildCodeServer(commit: string): Promise<void> {
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await this.task("building code-server", async () => {
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return util.promisify(cp.exec)("tsc --outDir ./out-build --tsBuildInfoFile ./.prod.tsbuildinfo", {
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cwd: this.rootPath,
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})
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})
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await this.task("bundling code-server", async () => {
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return this.createBundler("dist-build", commit).bundle()
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})
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await this.task("copying code-server into build directory", async () => {
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await fs.mkdirp(this.buildPath)
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await Promise.all([
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fs.copy(path.join(this.rootPath, "out-build"), path.join(this.buildPath, "out")),
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fs.copy(path.join(this.rootPath, "dist-build"), path.join(this.buildPath, "dist")),
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// For source maps and images.
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fs.copy(path.join(this.rootPath, "src"), path.join(this.buildPath, "src")),
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])
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})
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await this.copyDependencies("code-server", this.rootPath, this.buildPath, false, {
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commit,
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version: this.codeServerVersion,
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})
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}
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private async buildVscode(commit: string): Promise<void> {
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await this.task("building vs code", () => {
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return util.promisify(cp.exec)("yarn gulp compile-build", { cwd: this.vscodeSourcePath })
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})
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await this.task("building builtin extensions", async () => {
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const exists = await fs.pathExists(path.join(this.vscodeSourcePath, ".build/extensions"))
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if (exists && !process.env.CI) {
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process.stdout.write("already built, skipping...")
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} else {
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await util.promisify(cp.exec)("yarn gulp compile-extensions-build", { cwd: this.vscodeSourcePath })
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}
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})
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await this.task("optimizing vs code", async () => {
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return util.promisify(cp.exec)("yarn gulp optimize --gulpfile ./coder.js", { cwd: this.vscodeSourcePath })
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})
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if (process.env.MINIFY) {
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await this.task("minifying vs code", () => {
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return util.promisify(cp.exec)("yarn gulp minify --gulpfile ./coder.js", { cwd: this.vscodeSourcePath })
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})
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}
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const vscodeBuildPath = path.join(this.buildPath, "lib/vscode")
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await this.task("copying vs code into build directory", async () => {
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await fs.mkdirp(path.join(vscodeBuildPath, "resources/linux"))
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await Promise.all([
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fs.move(
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path.join(this.vscodeSourcePath, `out-vscode${process.env.MINIFY ? "-min" : ""}`),
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path.join(vscodeBuildPath, "out"),
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),
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fs.copy(path.join(this.vscodeSourcePath, ".build/extensions"), path.join(vscodeBuildPath, "extensions")),
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fs.copy(
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path.join(this.vscodeSourcePath, "resources/linux/code.png"),
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path.join(vscodeBuildPath, "resources/linux/code.png"),
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),
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])
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})
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await this.copyDependencies("vs code", this.vscodeSourcePath, vscodeBuildPath, true, {
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commit,
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date: new Date().toISOString(),
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})
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}
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private async copyDependencies(
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name: string,
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sourcePath: string,
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buildPath: string,
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ignoreScripts: boolean,
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merge: object,
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): Promise<void> {
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await this.task(`copying ${name} dependencies`, async () => {
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return Promise.all(
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["node_modules", "package.json", "yarn.lock"].map((fileName) => {
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return fs.copy(path.join(sourcePath, fileName), path.join(buildPath, fileName))
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}),
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)
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})
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const fileName = name === "code-server" ? "package" : "product"
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await this.task(`writing final ${name} ${fileName}.json`, async () => {
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const json = JSON.parse(await fs.readFile(path.join(sourcePath, `${fileName}.json`), "utf8"))
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return fs.writeFile(
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path.join(buildPath, `${fileName}.json`),
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JSON.stringify(
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{
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...json,
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...merge,
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},
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null,
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2,
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),
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)
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})
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if (process.env.MINIFY) {
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await this.task(`restricting ${name} to production dependencies`, async () => {
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await util.promisify(cp.exec)(`yarn --production ${ignoreScripts ? "--ignore-scripts" : ""}`, {
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cwd: buildPath,
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})
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})
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}
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}
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private async watch(): Promise<void> {
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let server: cp.ChildProcess | undefined
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const restartServer = (): void => {
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if (server) {
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server.kill()
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}
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const s = cp.fork(path.join(this.rootPath, "out/node/entry.js"), process.argv.slice(3))
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console.log(`[server] spawned process ${s.pid}`)
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s.on("exit", () => console.log(`[server] process ${s.pid} exited`))
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server = s
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}
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const vscode = cp.spawn("yarn", ["watch"], { cwd: this.vscodeSourcePath })
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const tsc = cp.spawn("tsc", ["--watch", "--pretty", "--preserveWatchOutput"], { cwd: this.rootPath })
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const bundler = this.createBundler()
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const cleanup = (code?: number | null): void => {
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this.log("killing vs code watcher")
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vscode.removeAllListeners()
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vscode.kill()
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this.log("killing tsc")
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tsc.removeAllListeners()
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tsc.kill()
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if (server) {
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this.log("killing server")
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server.removeAllListeners()
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server.kill()
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}
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this.log("killing bundler")
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process.exit(code || 0)
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}
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process.on("SIGINT", () => cleanup())
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process.on("SIGTERM", () => cleanup())
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vscode.on("exit", (code) => {
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this.log("vs code watcher terminated unexpectedly")
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cleanup(code)
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})
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tsc.on("exit", (code) => {
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this.log("tsc terminated unexpectedly")
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cleanup(code)
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})
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const bundle = bundler.bundle().catch(() => {
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this.log("parcel watcher terminated unexpectedly")
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cleanup(1)
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})
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bundler.on("buildEnd", () => {
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console.log("[parcel] bundled")
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})
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bundler.on("buildError", (error) => {
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console.error("[parcel]", error)
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})
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vscode.stderr.on("data", (d) => process.stderr.write(d))
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tsc.stderr.on("data", (d) => process.stderr.write(d))
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// From https://github.com/chalk/ansi-regex
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const pattern = [
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"[\\u001B\\u009B][[\\]()#;?]*(?:(?:(?:[a-zA-Z\\d]*(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]*)*)?\\u0007)",
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"(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PR-TZcf-ntqry=><~]))",
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].join("|")
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const re = new RegExp(pattern, "g")
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/**
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* Split stdout on newlines and strip ANSI codes.
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*/
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const onLine = (proc: cp.ChildProcess, callback: (strippedLine: string, originalLine: string) => void): void => {
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let buffer = ""
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if (!proc.stdout) {
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throw new Error("no stdout")
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}
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proc.stdout.setEncoding("utf8")
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proc.stdout.on("data", (d) => {
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const data = buffer + d
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const split = data.split("\n")
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const last = split.length - 1
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for (let i = 0; i < last; ++i) {
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callback(split[i].replace(re, ""), split[i])
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}
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// The last item will either be an empty string (the data ended with a
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// newline) or a partial line (did not end with a newline) and we must
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// wait to parse it until we get a full line.
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buffer = split[last]
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})
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}
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let startingVscode = false
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let startedVscode = false
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onLine(vscode, (line, original) => {
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console.log("[vscode]", original)
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// Wait for watch-client since "Finished compilation" will appear multiple
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// times before the client starts building.
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if (!startingVscode && line.includes("Starting watch-client")) {
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startingVscode = true
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} else if (startingVscode && line.includes("Finished compilation")) {
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if (startedVscode) {
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bundle.then(restartServer)
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}
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startedVscode = true
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}
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})
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onLine(tsc, (line, original) => {
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// tsc outputs blank lines; skip them.
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if (line !== "") {
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console.log("[tsc]", original)
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}
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if (line.includes("Watching for file changes")) {
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bundle.then(restartServer)
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}
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})
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}
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private createBundler(out = "dist", commit?: string): Bundler {
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return new Bundler(
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[
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path.join(this.rootPath, "src/browser/pages/app.ts"),
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path.join(this.rootPath, "src/browser/register.ts"),
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path.join(this.rootPath, "src/browser/serviceWorker.ts"),
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],
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{
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cache: true,
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cacheDir: path.join(this.rootPath, ".cache"),
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detailedReport: true,
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minify: !!process.env.MINIFY,
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hmr: false,
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logLevel: 1,
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outDir: path.join(this.rootPath, out),
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publicUrl: `/static/${commit || "development"}/dist`,
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target: "browser",
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},
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)
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}
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}
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const builder = new Builder()
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builder.run(process.argv[2] as Task)
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