50 lines
2.4 KiB
JavaScript
50 lines
2.4 KiB
JavaScript
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const fs = require('node:fs')
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const path = require('node:path')
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const { execFileSync } = require('node:child_process')
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// Snapshot only this build, before adding older hashed chunks for open tabs.
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function preserveFrontendAssets(root, revision) {
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if (!/^[a-zA-Z0-9-]+$/.test(revision)) throw new Error('Invalid asset revision')
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const assets = path.join(root, 'src/frontend/dist/assets')
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const archive = path.join(root, 'frontend-asset-archives')
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fs.mkdirSync(archive, { recursive: true })
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const previous = fs.readdirSync(archive).filter(name => fs.statSync(path.join(archive, name)).isDirectory())
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.sort((a, b) => fs.statSync(path.join(archive, b)).mtimeMs - fs.statSync(path.join(archive, a)).mtimeMs).slice(0, 3)
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const snapshot = path.join(archive, revision)
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if (fs.existsSync(snapshot)) throw new Error('Asset snapshot already exists')
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fs.cpSync(assets, snapshot, { recursive: true, errorOnExist: true, force: false })
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if (!previous.length) {
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const docker = (...args) => execFileSync('docker', ['--context', 'colima-yawan', ...args], { encoding: 'utf8' }).trim()
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const containers = docker('ps', '-a', '--filter', 'name=yawan-public-frontend', '--format', '{{.Names}}').split('\n').filter(Boolean)
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for (const container of containers) {
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if (!/^yawan-public-frontend(?:-before-[a-zA-Z0-9-]+)?$/.test(container)) continue
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const name = `bootstrap-${container}`
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const destination = path.join(archive, name)
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if (!fs.existsSync(destination)) docker('cp', `${container}:/usr/share/nginx/html/assets`, destination)
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previous.push(name)
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}
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}
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let retained = 0
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for (const name of previous) retained += mergeAssets(path.join(archive, name), assets)
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const now = new Date()
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fs.utimesSync(snapshot, now, now)
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return { retained, previous_builds: previous.length }
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}
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function mergeAssets(source, destination) {
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let copied = 0
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for (const entry of fs.readdirSync(source, { withFileTypes: true })) {
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const from = path.join(source, entry.name), to = path.join(destination, entry.name)
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if (entry.isSymbolicLink()) throw new Error('Asset symlinks are not supported')
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if (entry.isDirectory()) {
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fs.mkdirSync(to, { recursive: true })
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copied += mergeAssets(from, to)
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} else if (entry.isFile() && !fs.existsSync(to)) {
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fs.copyFileSync(from, to, fs.constants.COPYFILE_EXCL)
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copied++
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}
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}
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return copied
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}
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module.exports = { preserveFrontendAssets, mergeAssets }
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