buncid/rebuilds/next-js/index.ts

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2025-02-03 12:41:13 +00:00
#!/usr/bin/env bun
import path from "path";
import fs from "fs";
import {
execSync,
spawnSync,
SpawnSyncOptionsWithStringEncoding,
} from "child_process";
const DIST_DIR = path.resolve(process.cwd(), "./.dist");
let PREV_BUILD_NO = "0";
const MAX_BUILDS = process.env.BUNCID_MAX_BUILDS
? Number(process.env.BUNCID_MAX_BUILDS)
: 10;
if (
MAX_BUILDS < 1 ||
Number.isNaN(MAX_BUILDS) ||
typeof MAX_BUILDS !== "number"
) {
throw new Error("Invalid MAX_BUILDS");
}
if (!fs.existsSync(DIST_DIR)) fs.mkdirSync(DIST_DIR);
if (fs.existsSync(`${DIST_DIR}/BUILD`)) {
PREV_BUILD_NO = fs.readFileSync(`${DIST_DIR}/BUILD`, "utf-8");
} else {
fs.writeFileSync(`${DIST_DIR}/BUILD`, "0", "utf-8");
}
try {
const buildNumber = fs.readFileSync(`${DIST_DIR}/BUILD`, "utf-8");
const newBuildNumber = Number(buildNumber) + 1;
if (newBuildNumber < 0) {
throw new Error("Invalid Build Number");
}
fs.writeFileSync(`${DIST_DIR}/BUILD`, String(newBuildNumber));
if (newBuildNumber > MAX_BUILDS) {
const builds = fs.readdirSync(DIST_DIR);
const buildDirs = builds.filter((build) => build.match(/build-\d+/));
for (const buildDir of buildDirs) {
const buildDirPath = path.join(DIST_DIR, buildDir);
const buildDirStat = fs.statSync(buildDirPath);
if (buildDirStat.isDirectory()) {
const buildDirName = buildDir.split("-")[1];
const buildDirNumber = Number(buildDirName);
if (buildDirNumber <= newBuildNumber - MAX_BUILDS) {
fs.rmdirSync(buildDirPath, { recursive: true });
console.log("Deleted Build Directory =>", buildDirPath);
}
}
}
}
} catch (error: any) {
console.log("Build Number Parse Error =>", error.message);
process.exit(1);
}
const spawnSyncOptions: SpawnSyncOptionsWithStringEncoding = {
stdio: "inherit",
encoding: "utf-8",
shell: process.platform?.match(/win32/i) ? "bash.exe" : undefined,
env: {
...process.env,
BUILDING_APP: "true",
},
};
const build = spawnSync("bunx", ["next", "build"], spawnSyncOptions);
/**
* @returns {string}
*/
function grabNewDistDir(): string {
try {
const buildNumber = fs.readFileSync(`${DIST_DIR}/BUILD`, "utf-8");
return `.dist/build-${buildNumber}`;
} catch (/** @type {*} */ error: any) {
console.log("Build Number Parse Error =>", error.message);
process.exit();
}
}
const newDistDir = grabNewDistDir();
// if (!fs.existsSync(newDistDir)) {
// fs.mkdirSync(newDistDir, { recursive: true });
// }
// if (!fs.existsSync(`${newDistDir}/BUILD_ID`)) {
// fs.writeFileSync(`${newDistDir}/BUILD_ID`, "4");
// }
/**
* # Revert Directories
* @param {string} dir - New Build Directory Path
*/
function revert(dir: string) {
console.log("Build Failed!", build?.error?.message || build.stderr);
fs.writeFileSync(`${DIST_DIR}/BUILD`, PREV_BUILD_NO, "utf-8");
execSync(`rm -Rf ${dir}`, { cwd: process.cwd() });
const writeErr = build.error
? build.error.message
: build.stderr
? build.stderr.toString()
: "NO BUILD_ID found in New Build Folder";
fs.writeFileSync(
`${DIST_DIR}/LAST_BUILD_FAIL`,
Date() + "\n\n" + writeErr,
"utf-8"
);
process.exit(1);
}
if (
build.error ||
build.stderr ||
build.status != 0 ||
!fs.existsSync(`${newDistDir}/BUILD_ID`)
) {
revert(newDistDir);
throw new Error("Build Failed!");
}
process.on("exit", () => {
const onExitDir = grabNewDistDir();
if (!fs.existsSync(`${onExitDir}/BUILD_ID`)) {
revert(onExitDir);
}
});