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The pathspec exclude hid a tracked file of that name; the status lines are filtered instead. Tests against a real repo: explicit sha plus stray file, stray file beside the temp file in root and subfolder, tracked file of the temp name, new folder. Six mutants of the logic each fail a test. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
43 lines
2 KiB
JavaScript
43 lines
2 KiB
JavaScript
// The commit a bundle was built from, stamped into its index.html as <meta name="build-sha">, so a built
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// folder says what it is without a build log: `grep -o 'build-sha" content="[^"]*' dist/index.html`.
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// BUILD_SHA names the commit when it is a full sha (a build from a source archive has no git), otherwise git's
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// HEAD does; either way -dirty is appended when git can see uncommitted changes, so an explicit sha never
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// vouches for a tree that differs from it. No git and no BUILD_SHA: 'unknown'.
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import { execFileSync } from 'child_process';
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import { dirname, resolve } from 'path';
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import { fileURLToPath } from 'url';
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const REPO_DIR = resolve(dirname(fileURLToPath(import.meta.url)), '..');
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// Vite writes vite.config.js.timestamp-*.mjs next to the config while it loads it; that file is the
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// build's own, not source, so an UNTRACKED one must not mark the tree dirty. A tracked file of that name,
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// or any other change, still does. Filtering status lines (not a pathspec) is what keeps it untracked-only.
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const VITE_TEMP = /^\?\? (?:.*\/)?vite\.config\.[^/]*\.timestamp-[^/]*\.mjs$/;
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export const gitIn =
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(cwd) =>
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(...args) =>
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execFileSync('git', args, { cwd, encoding: 'utf8', stdio: ['ignore', 'pipe', 'ignore'] });
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export const readBuildSha = (env = process.env, run = gitIn(REPO_DIR)) => {
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const fromEnv = (env.BUILD_SHA ?? '').trim();
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const explicit = /^[0-9a-f]{40}$/.test(fromEnv) ? fromEnv : null;
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try {
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const head = run('rev-parse', 'HEAD').trim();
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const sha = explicit ?? head;
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if (!/^[0-9a-f]{40}$/.test(sha)) return 'unknown';
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const dirty = run('status', '--porcelain', '-uall', '--', '.')
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.split('\n')
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.some((l) => l.trim() !== '' && !VITE_TEMP.test(l));
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return dirty ? `${sha}-dirty` : sha;
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} catch {
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return explicit ?? 'unknown';
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}
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};
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export const buildShaPlugin = (sha = readBuildSha()) => ({
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name: 'ratatoskr-build-sha',
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transformIndexHtml: () => [
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{ tag: 'meta', attrs: { name: 'build-sha', content: sha }, injectTo: 'head-prepend' },
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],
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});
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