budibase/packages/server/utilities/targzAppPackage.js

97 lines
2.8 KiB
JavaScript

// Based on https://github.com/lafin/node-targz
// MIT license
const fs = require("fs");
const tar = require('tar-fs');
const zlib = require("zlib");
const { join, dirname, sep } = require("path");
const { exists, mkdir, unlink, stat } = require("../utilities/fsawait");
const { getRuntimePackageDirectory, getRuntimeAppsDirectory } = require("./runtimePackages");
module.exports.createTarGzPackage = async (config, appName) => {
const appPath = join(config.latestAppsPath, appName);
const distPath = join(appPath, "dist");
if(!await exists(distPath)) {
await mkdir(distPath);
}
const packagePath = `${distPath}/package.tar.gz`;
if(await exists(`${packagePath}`)) {
await unlink(packagePath);
}
await compress(appPath, packagePath);
const size = (await stat(packagePath)).size;
return {size, path:packagePath};
}
module.exports.unzipTarGzPackageToRuntime = async (src, appName, versionId) => {
const versionDir = getRuntimePackageDirectory(appName, versionId);
const appDir = getRuntimeAppsDirectory(appName);
if(await exists(appDir)) {
if(await exists(versionDir)) {
await rimraf(versionDir);
}
} else {
await mkdir(appDir);
}
await mkdir(versionDir);
await decompress(src, versionDir);
}
const compress = (src, dest) => new Promise((resolve, reject) => {
// ensure opts
opts = {src, dest};
opts.tar = {ignore: name => dirname(name).split(sep).pop() === "dist"};
opts.gz = opts.gz || {};
// default gzip config
opts.gz.level = opts.gz.level || 6;
opts.gz.memLevel = opts.gz.memLevel || 6;
// ensure src and dest
if(!opts.src) return reject("No source for compress!");
if(!opts.dest) return reject("No destination for compress!");
// go
process.nextTick(function () {
tar.pack(opts.src, opts.tar)
.on('error', reject)
.pipe(zlib.createGzip(opts.gz)
.on('error', reject))
.pipe(fs.createWriteStream(opts.dest)
.on('error', reject)
.on('finish', resolve));
});
});
const decompress = (src, dest) => new Promise((resolve, reject) => {
// ensure opts
opts = {src, dest};
opts.tar = opts.tar || {};
opts.gz = opts.gz || {};
// ensure src and dest
if(!opts.src) return reject("No source for decompress!");
if(!opts.dest) return reject("No destination for decompress!");
// go
process.nextTick(function () {
fs.createReadStream(opts.src)
.on('error', reject)
.pipe(zlib.createGunzip(opts.gz)
.on('error', reject))
.pipe(tar.extract(opts.dest, opts.tar)
.on('error', reject)
.on('finish', resolve));
});
});