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Extract typescript installer to utils
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,152 @@ | ||
| import assert = require("assert"); | ||
| import { exec } from "child_process"; | ||
| import * as fs from "fs-extra"; | ||
| import * as os from "os"; | ||
| import * as path from "path"; | ||
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| const installsDir = path.join(os.homedir(), ".dts", "typescript-installs"); | ||
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| /** Parseable but unsupported TypeScript versions. */ | ||
| export type UnsupportedTypeScriptVersion = | ||
| | "2.0" | "2.1" | "2.2" | "2.3" | "2.4" | "2.5" | "2.6" | "2.7"; | ||
| /** | ||
| * Parseable and supported TypeScript versions. | ||
| * Only add to this list if we will support this version on DefinitelyTyped. | ||
| */ | ||
| export type TypeScriptVersion = | ||
| | "2.8" | "2.9" | ||
| | "3.0" | "3.1" | "3.2" | "3.3" | "3.4" | "3.5" | "3.6" | "3.7" | "3.8" | "3.9"; | ||
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| export type AllTypeScriptVersion = UnsupportedTypeScriptVersion | TypeScriptVersion; | ||
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| export type TsVersion = TypeScriptVersion | "next" | "local"; | ||
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| export namespace TypeScriptVersion { | ||
| export const supported: readonly TypeScriptVersion[] = | ||
| ["2.8", "2.9", | ||
| "3.0", "3.1", "3.2", "3.3", "3.4", "3.5", "3.6", "3.7", "3.8", "3.9"]; | ||
| export const unsupported: readonly UnsupportedTypeScriptVersion[] = | ||
| ["2.0", "2.1", "2.2", "2.3", "2.4", "2.5", "2.6", "2.7"]; | ||
| export const all: readonly AllTypeScriptVersion[] = [...unsupported, ...supported]; | ||
| export const lowest = supported[0]; | ||
| /** Latest version that may be specified in a `// TypeScript Version:` header. */ | ||
| export const latest = supported[supported.length - 1]; | ||
|
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| /** @deprecated */ | ||
| export function isPrerelease(_version: TypeScriptVersion): boolean { | ||
| return false; | ||
| } | ||
|
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| export function isSupported(v: AllTypeScriptVersion): v is TypeScriptVersion { | ||
| return supported.indexOf(v as TypeScriptVersion) > -1; | ||
| } | ||
|
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| export function range(min: TypeScriptVersion): ReadonlyArray<TypeScriptVersion> { | ||
| return supported.filter(v => v >= min); | ||
| } | ||
|
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| const supportedTags: readonly string[] = [ | ||
| "ts2.8", | ||
| "ts2.9", | ||
| "ts3.0", | ||
| "ts3.1", | ||
| "ts3.2", | ||
| "ts3.3", | ||
| "ts3.4", | ||
| "ts3.5", | ||
| "ts3.6", | ||
| "ts3.7", | ||
| "ts3.8", | ||
| "ts3.9", | ||
| "latest", | ||
| ]; | ||
|
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| /** List of NPM tags that should be changed to point to the latest version. */ | ||
| export function tagsToUpdate(v: TypeScriptVersion): ReadonlyArray<string> { | ||
| const idx = supportedTags.indexOf(`ts${v}`); | ||
| assert(idx !== -1); | ||
| return supportedTags.slice(idx); | ||
| } | ||
|
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| export function previous(v: TypeScriptVersion): TypeScriptVersion | undefined { | ||
| const index = supported.indexOf(v); | ||
| assert(index !== -1); | ||
| return index === 0 ? undefined : supported[index - 1]; | ||
| } | ||
|
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| export function isRedirectable(v: TypeScriptVersion): boolean { | ||
| return all.indexOf(v) >= all.indexOf("3.1"); | ||
| } | ||
| } | ||
|
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| export async function installAllTypeScriptVersions() { | ||
| for (const v of TypeScriptVersion.supported) { | ||
| // manually install typescript@next outside the loop | ||
| if (v === TypeScriptVersion.supported[TypeScriptVersion.supported.length - 1]) { continue; } | ||
| await install(v); | ||
| } | ||
| await installTypeScriptNext(); | ||
| } | ||
|
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| export async function installTypeScriptNext() { | ||
| await install("next"); | ||
| } | ||
|
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| async function install(version: TsVersion): Promise<void> { | ||
| if (version === "local") { | ||
| return; | ||
| } | ||
| const dir = installDir(version); | ||
| if (!await fs.pathExists(dir)) { | ||
| console.log(`Installing to ${dir}...`); | ||
| await fs.mkdirp(dir); | ||
| await fs.writeJson(path.join(dir, "package.json"), packageJson(version)); | ||
| await execAndThrowErrors("npm install --ignore-scripts --no-shrinkwrap --no-package-lock --no-bin-links", dir); | ||
| console.log("Installed!"); | ||
| console.log(""); | ||
| } | ||
| } | ||
|
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| export function cleanTypeScriptInstalls(): Promise<void> { | ||
| return fs.remove(installsDir); | ||
| } | ||
|
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| export function typeScriptPath(version: TsVersion, tsLocal: string | undefined): string { | ||
| if (version === "local") { | ||
| return tsLocal! + "/typescript.js"; | ||
| } | ||
| return path.join(installDir(version), "node_modules", "typescript"); | ||
| } | ||
|
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| function installDir(version: TsVersion): string { | ||
| assert(version !== "local"); | ||
| return path.join(installsDir, version); | ||
| } | ||
|
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| /** Run a command and return the stdout, or if there was an error, throw. */ | ||
| async function execAndThrowErrors(cmd: string, cwd?: string): Promise<void> { | ||
| return new Promise<void>((resolve, reject) => { | ||
| exec(cmd, { encoding: "utf8", cwd }, (err, _stdout, stderr) => { | ||
| if (stderr) { | ||
| console.error(stderr); | ||
| } | ||
|
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| if (err) { | ||
| reject(err); | ||
| } else { | ||
| resolve(); | ||
| } | ||
| }); | ||
| }); | ||
| } | ||
|
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| function packageJson(version: TsVersion): {} { | ||
| return { | ||
| description: `Installs typescript@${version}`, | ||
| repository: "N/A", | ||
| license: "MIT", | ||
| dependencies: { | ||
| typescript: version, | ||
| }, | ||
| }; | ||
| } |