88 lines
3.3 KiB
JavaScript
88 lines
3.3 KiB
JavaScript
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// App version + «what changed» notes, baked into each front-end at build time.
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//
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// Version: the build number is the commit count of HEAD, so it only ever goes
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// up and needs no file to bump. It is compiled into the bundle (__APP_BUILD__)
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// and written to dist/version.json; the running app polls that file and, when
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// the server's build is newer than its own, shows the update modal.
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//
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// Notes come from commit messages. Technical text is never shown: only lines
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// that start with a Persian tag, written for the person using that part:
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//
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// اپ: … the customer app
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// اپ۱: … user-app (alias of اپ)
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// پنل: … the admin panel
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//
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// A commit may carry several such lines. Each app shows only its own.
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import { execFileSync } from 'node:child_process';
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const TAGS = {
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'user-app': ['اپ', 'اپ۱', 'اپ1'],
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'admin-panel': ['پنل'],
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};
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/** How many released builds with notes the file keeps. */
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const HISTORY = 30;
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function git(args, cwd) {
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return execFileSync('git', args, { cwd, encoding: 'utf8', stdio: ['ignore', 'pipe', 'ignore'] });
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}
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/** Pure, for testing: the note lines in one commit message that belong to `app`. */
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export function notesFor(app, message) {
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const tags = TAGS[app] ?? [];
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const out = [];
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for (const raw of message.split(/\r?\n/)) {
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const m = /^\s*([^\s:：]+)\s*[:：]\s*(.+?)\s*$/.exec(raw);
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// The note must be Persian: a wrapped English line that happens to begin
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// with a tag (e.g. in a commit body explaining the tags) is not a note.
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if (m && tags.includes(m[1]) && /[-ۿ]/.test(m[2])) out.push(m[2]);
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}
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return out;
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}
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export function computeAppVersion(app, cwd = process.cwd()) {
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const builtAt = new Date().toISOString();
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try {
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const build = Number(git(['rev-list', '--count', 'HEAD'], cwd).trim());
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const commit = git(['rev-parse', '--short', 'HEAD'], cwd).trim();
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// Newest first; a record separator between commits, unit separator between fields.
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const log = git(['log', '-n', '400', '--format=%ct%x1f%B%x1e'], cwd);
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const history = [];
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log.split('\x1e').forEach((rec, i) => {
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const [ts, body] = rec.replace(/^\s+/, '').split('\x1f');
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if (!body) return;
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const notes = notesFor(app, body);
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if (!notes.length) return;
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history.push({ build: build - i, date: new Date(Number(ts) * 1000).toISOString(), notes });
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});
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return { app, build, version: `1.${build}`, commit, builtAt, history: history.slice(0, HISTORY) };
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} catch {
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// Not a git checkout (e.g. a copied tree): still a valid, if note-less, build.
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const build = Math.floor(Date.now() / 1000);
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return { app, build, version: `1.${build}`, commit: null, builtAt, history: [] };
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}
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}
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/**
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* Vite plugin: defines __APP_BUILD__ / __APP_VERSION__ and emits version.json.
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* The dev server has no version.json, so the update check stays quiet there.
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*/
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export function appVersion(app) {
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const info = computeAppVersion(app);
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return {
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name: 'app-version',
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config() {
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return {
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define: {
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__APP_BUILD__: JSON.stringify(info.build),
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__APP_VERSION__: JSON.stringify(info.version),
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},
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};
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},
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generateBundle() {
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this.emitFile({ type: 'asset', fileName: 'version.json', source: JSON.stringify(info, null, 2) });
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},
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};
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}
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