Lightcord/scripts/build.js

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const child_process = require("child_process")
const path = require("path")
const terser = require("terser")
const util = require("util")
const production = true
const includeSourcesMaps = true
let fs = require("fs")
exports.default = async function beforeBuild(context){
await main()
return true
}
const PROJECT_DIR = path.resolve(__dirname, "..");
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console.log = (...args) => {
process.stdout.write(Buffer.from(util.formatWithOptions({colors: true}, ...args)+"\n", "binary").toString("utf8"))
}
console.info = (...args) => {
console.log(`\x1b[34m[INFO]\x1b[0m`, ...args)
}
let commit = child_process.execSync("git rev-parse HEAD").toString().split("\n")[0].trim()
console.info(`Obtained commit ${commit} for the build`)
async function processNextDir(folder, folders, predicate, compile, ignoreModules){
if(typeof ignoreModules === "undefined")ignoreModules = false
let files = fs.readdirSync(folder, {withFileTypes: true})
for(let file of files){
if(file.isFile()){
let isMinified = file.name.endsWith(".min.js") || file.name.endsWith(".min.css")
let filepath = path.join(folder, file.name)
let type = file.name.split(".").pop().toLowerCase()
if(type === file.name)type = ""
if([
"ts",
"md",
"gitignore",
"map"
].includes(type)){
console.warn(`\x1b[33mIgnored file ${path.relative(folders.startDir, filepath)} because of type ${type}\x1b[0m`)
continue
}
if([
"tsconfig.json",
"webpack.config.js"
].includes(file.name)){
console.warn(`\x1b[33mIgnored file ${path.relative(folders.startDir, filepath)} because of name ${file.name}\x1b[0m`)
continue
}
if(folders.exclude && folders.exclude.test(filepath)){
console.warn(`\x1b[33mIgnored file ${path.relative(folders.startDir, filepath)} because regex\x1b[0m`)
continue
}
let hasMinifiedVersion = (type === "js" || type === "css") && !isMinified && files.find(f => {
return f.name === file.name.split(".").slice(0, -1).join(".")+".min."+type
})
if(hasMinifiedVersion){
console.warn(`\x1b[33mIgnored file ${path.relative(folders.startDir, filepath)} because it has a minified version.\x1b[0m`)
continue
}
if(!isMinified && predicate(filepath) && filepath.split(/[\\/]+/).reverse()[1] !== "js"){
await compile(filepath, path.join(filepath.replace(folders.startDir, folders.newDir)), "..")
}else{
if(["js", "css"].includes(type)){
if(!includeSourcesMaps){
console.log(`We don't include sourcemap for this build. Skipping ${file.name}.`)
return await fs.promises.copyFile(filepath, filepath.replace(folders.startDir, folders.newDir))
}
let fileContent = (await fs.promises.readFile(filepath, "utf8"))
let sourceMap = fileContent.split(/[\n\r]+/g).pop()
if(!sourceMap || !sourceMap.startsWith("//# sourceMappingURL=")){
console.log(`This file doesn't have sourcemap. ${file.name}.`)
await fs.promises.copyFile(filepath, filepath.replace(folders.startDir, folders.newDir))
continue
}
let sourceMapContent
if(sourceMap.slice(21).startsWith("data:")){
console.log(`Extracting sourcemap from data uri. From file ${file.name}.`)
sourceMapContent = Buffer.from(sourceMap.split("=").slice(1).join("="), "base64").toString("utf-8")
}else{
console.log(`Extracting sourcemap from file ${file.name}.map.`)
await fs.promises.copyFile(filepath, filepath.replace(folders.startDir, folders.newDir))
sourceMapContent = await fs.promises.readFile(path.join(folder, sourceMap.slice(21)), "utf8")
}
sourceMapContent = JSON.parse(sourceMapContent)
sourceMapContent.sourcesContent = []
let sourceMapPath = filepath + ".map"
fileContent = fileContent
// source map
.replace(sourceMap, "//# sourceMappingURL="+filepath.split(/[\\\/]+/g).pop()+".map")
await fs.promises.writeFile(filepath.replace(folders.startDir, folders.newDir), fileContent)
await fs.promises.writeFile(filepath.replace(folders.startDir, folders.newDir)+".map", JSON.stringify(sourceMapContent))
}else{
await fs.promises.copyFile(filepath, filepath.replace(folders.startDir, folders.newDir))
}
}
}else if(file.isDirectory()){
if(ignoreModules && file.name === "node_modules")continue
if(folders.exclude && folders.exclude.test(path.join(folder, file.name)))continue
await fs.promises.mkdir(path.join(folder, file.name).replace(folders.startDir, folders.newDir), {recursive: true})
await processNextDir(path.join(folder, file.name), ...Array.from(arguments).slice(1))
}
}
}
async function main(){
let startTimestamp = Date.now()
console.info("Starting build")
console.info("Reseting existent directory...")
await fs.promises.rmdir("./distApp", {"recursive": true})
await fs.promises.mkdir(PROJECT_DIR+"/distApp/dist", {"recursive": true})
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console.info("Executing command `npm run compile`")
child_process.execSync("npm run compile", {
encoding: "binary",
stdio: "inherit"
})
let startDir = path.join(PROJECT_DIR, "./dist")
let newDir = path.join(PROJECT_DIR, "./distApp/dist")
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console.info("No error detected. Copying files from "+startDir+".")
await fs.promises.mkdir(startDir, {recursive: true})
await processNextDir(startDir, {
startDir,
newDir
}, ((filepath) => filepath.endsWith(".js")), async (filepath, newpath) => {
console.info(`Minifying ${filepath} to ${newpath}`)
if(filepath.endsWith("git.js")){
await fs.promises.writeFile(newpath, terser.minify(fs.readFileSync(filepath, "utf8").replace(/"{commit}"/g, `"${commit}"`)).code, "utf8")
}else{
await fs.promises.writeFile(newpath, terser.minify(await fs.promises.readFile(filepath, "utf8")).code, "utf8")
}
}, true).then(() => {
console.info(`Copied files and minified them from ${startDir}.`)
})
await processNextDir(path.join(PROJECT_DIR, "modules"), {
startDir: path.join(PROJECT_DIR, "modules"),
newDir: path.join(PROJECT_DIR, "distApp", "modules"),
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exclude: /discord_spellcheck/g
}, ((filepath) => filepath.endsWith(".js")), async (filepath, newpath) => {
console.info(`Minifying ${filepath} to ${newpath}`)
await fs.promises.writeFile(newpath, terser.minify(await fs.promises.readFile(filepath, "utf8")).code, "utf8")
}, true).then(() => {
console.info(`Copied files and minified them from ${path.join(PROJECT_DIR, "modules")}.`)
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})
await Promise.all((await fs.promises.readdir(path.join(PROJECT_DIR, "distApp", "modules"))).map(async mdl => {
let dir = path.join(PROJECT_DIR, "distApp", "modules", mdl)
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if(!fs.existsSync(path.join(dir, "package.json"))){
if(mdl === "discord_desktop_core"){
dir = path.join(dir, "core")
}else{
return
}
}
console.info(`Installing modules for ${mdl}`)
child_process.execSync("npm install --only=prod", {
encoding: "binary",
cwd: dir,
stdio: "inherit"
})
}))
await fs.promises.mkdir(path.join(PROJECT_DIR, "distApp", "modules", "discord_spellcheck"), {recursive: true})
await processNextDir(path.join(PROJECT_DIR, "modules", "discord_spellcheck"), {
startDir: path.join(PROJECT_DIR, "modules", "discord_spellcheck"),
newDir: path.join(PROJECT_DIR, "distApp", "modules", "discord_spellcheck")
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}, ((filepath) => filepath.endsWith(".js")), async (filepath, newpath) => {
console.info(`Minifying ${filepath} to ${newpath}`)
await fs.promises.writeFile(newpath, terser.minify(await fs.promises.readFile(filepath, "utf8")).code, "utf8")
}, false).then(() => {
console.info(`Copied files and minified them from ${path.join(PROJECT_DIR, "modules")}.`)
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})
await processNextDir(path.join(PROJECT_DIR, "LightcordApi"), {
startDir: path.join(PROJECT_DIR, "LightcordApi"),
newDir: path.join(PROJECT_DIR, "distApp", "LightcordApi"),
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exclude: /(src|webpack\.config\.js|tsconfig\.json|dist|docs)/g
}, ((filepath) => filepath.endsWith(".js") && (!production ? !filepath.includes("node_modules") : true)), async (filepath, newpath) => {
await fs.promises.copyFile(filepath, newpath)
}, true).then(() => {
console.info(`Copied files and minified them from ${path.join(PROJECT_DIR, "LightcordApi")}.`)
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})
child_process.execSync("npm install --only=prod", {
encoding: "binary",
cwd: path.join(PROJECT_DIR, "distApp", "LightcordApi"),
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stdio: "inherit"
})
function processDJS(dir){
fs.mkdirSync(path.join(PROJECT_DIR, "distApp", "DiscordJS", dir), {recursive: true})
return processNextDir(path.join(PROJECT_DIR, "DiscordJS", dir), {
startDir: path.join(PROJECT_DIR, "DiscordJS", dir),
newDir: path.join(PROJECT_DIR, "distApp", "DiscordJS", dir),
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exclude: /node_modules/g
}, ((filepath) => filepath.endsWith(".js")), async (filepath, newpath) => {
console.info(`Minifying ${filepath} to ${newpath}`)
await fs.promises.writeFile(newpath, terser.minify(await fs.promises.readFile(filepath, "utf8")).code, "utf8")
}).then(() => {
console.info(`Copied files and minified them from ${path.join(PROJECT_DIR, "DiscordJS", dir)}.`)
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})
}
async function copyFileDJS(file){
await fs.promises.writeFile(path.join(PROJECT_DIR, "distApp", "DiscordJS", file), await fs.promises.readFile(path.join(PROJECT_DIR, "DiscordJS", file)))
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}
await processDJS("dist")
await copyFileDJS("package.json")
child_process.execSync("npm install --only=prod", {
encoding: "binary",
cwd: path.join(PROJECT_DIR, "distApp", "DiscordJS"),
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stdio: "inherit"
})
fs.mkdirSync(path.join(PROJECT_DIR, "distApp", "BetterDiscordApp", "dist"), {recursive: true})
const BDPackageJSON = require("../BetterDiscordApp/package.json")
fs.writeFileSync(path.join(PROJECT_DIR, "distApp", "BetterDiscordApp", "package.json"), JSON.stringify(BDPackageJSON), "utf8")
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const files = [
"index.min.js",
"style.min.css"
]
files.forEach(e => {
files.push(e + ".map")
})
files.forEach(e => {
const pth = path.join(PROJECT_DIR, "BetterDiscordApp", "dist", e)
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if(!fs.existsSync(pth))return console.error(`\x1b[31mFile ${pth} from betterdiscord does not exist.\x1b[0m`)
if(e.endsWith(".map")){
const data = JSON.parse(fs.readFileSync(pth, "utf8"))
data.sourcesContent = []
fs.writeFileSync(path.join(PROJECT_DIR, "distApp", "BetterDiscordApp", "dist", e), JSON.stringify(data))
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}else{
fs.copyFileSync(pth, path.join(PROJECT_DIR, "distApp", "BetterDiscordApp", "dist", e))
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}
})
await fs.promises.mkdir(path.join(PROJECT_DIR, "distApp", "splash", "videos"), {recursive: true})
await processNextDir(path.join(PROJECT_DIR, "splash"), {
startDir: path.join(PROJECT_DIR, "splash"),
newDir: path.join(PROJECT_DIR, "distApp", "splash"),
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exclude: /node_modules/g
}, (filepath) => {
if(filepath.endsWith(".js"))return true
return false
}, async (filepath, newpath) => {
console.info(`Minifying ${filepath} to ${newpath}`)
await fs.promises.writeFile(newpath, terser.minify(await fs.promises.readFile(filepath, "utf8")).code, "utf8")
}).then(() => {
console.info(`Copied files and minified them from ${path.join(PROJECT_DIR, "splash")}.`)
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})
fs.writeFileSync(path.join(PROJECT_DIR, "distApp", "LICENSE"), fs.readFileSync(path.join(PROJECT_DIR, "LICENSE")))
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let packageJSON = require("../package.json")
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packageJSON.scripts["build:electron_linux"] = packageJSON.scripts["build:electron_linux"].replace("./distApp", ".")
packageJSON.scripts["build:electron_win"] = packageJSON.scripts["build:electron_win"].replace("./distApp", ".")
packageJSON.scripts["build:electron_mac"] = packageJSON.scripts["build:electron_mac"].replace("./distApp", ".")
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fs.writeFileSync(path.join(PROJECT_DIR, "distApp", "package.json"), JSON.stringify(packageJSON), "utf8")
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console.info(`Installing ${Object.keys(packageJSON.dependencies).length} packages...`)
child_process.execSync("npm install --only=prod", {
encoding: "binary",
cwd: path.join(PROJECT_DIR, "distApp"),
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stdio: "inherit"
})
console.info("Build took "+(Date.now() - startTimestamp) +"ms.")
}
main()
.catch(err => {
console.error(err)
process.exit(1)
})