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4a2a4412c2
The formatter had never been run over these files, so `oxfmt` on a couple of touched files rewrote two dozen others and buried the real change. Running it everywhere once makes the next diff mean something. No behaviour changes: import ordering, line joining, and reindented JSON in the generated migration snapshots. Both test suites and both typechecks give the same answers as before, including the two type errors this does not fix.
57 lines
2.3 KiB
TypeScript
57 lines
2.3 KiB
TypeScript
/**
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* Bake `migrations/` into a TypeScript module so the migrator can be a single
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* self-contained binary.
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*
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* `drizzle-kit migrate` reads the folder at runtime, which is the right shape
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* on a laptop and the wrong one on a server: the deploy agent ships flat,
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* checksummed files into `bin/`, and a migrator that needs a directory beside
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* it is a migrator that can be run against the wrong directory. Embedding
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* removes the question — the binary *is* the migration set, and its checksum
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* covers every statement it will run.
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*
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* Run before `bun build --compile`. It runs on every build rather than being
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* committed, so the embedded set cannot drift from the folder.
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*
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* bun run packages/core/scripts/embed-migrations.ts
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*/
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import crypto from 'node:crypto';
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import fs from 'node:fs';
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import path from 'node:path';
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const here = path.dirname(new URL(import.meta.url).pathname);
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const folder = path.join(here, '..', 'migrations');
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const out = path.join(here, '..', 'src', 'migrations.generated.ts');
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type JournalEntry = { idx: number; when: number; tag: string; breakpoints: boolean };
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const journal = JSON.parse(fs.readFileSync(path.join(folder, 'meta', '_journal.json'), 'utf8')) as {
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entries: JournalEntry[];
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};
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// Deliberately identical to drizzle-orm's own `readMigrationFiles`: the same
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// `--> statement-breakpoint` split, the same sha256 over the whole file, the
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// same `when` as the ordering key. The live database was migrated by
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// drizzle-kit, so anything else here would re-apply migrations that have
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// already run.
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const migrations = journal.entries.map((e) => {
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const sql = fs.readFileSync(path.join(folder, `${e.tag}.sql`), 'utf8');
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return {
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tag: e.tag,
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sql: sql.split('--> statement-breakpoint'),
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bps: e.breakpoints,
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folderMillis: e.when,
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hash: crypto.createHash('sha256').update(sql).digest('hex')
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};
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});
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fs.writeFileSync(
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out,
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`// Generated by scripts/embed-migrations.ts. Do not edit.\n` +
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`// ${migrations.length} migrations, ${migrations.at(-1)?.tag ?? 'none'} last.\n` +
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`export type Embedded = {\n` +
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`\ttag: string;\n\tsql: string[];\n\tbps: boolean;\n\tfolderMillis: number;\n\thash: string;\n};\n\n` +
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`export const MIGRATIONS: Embedded[] = ${JSON.stringify(migrations, null, '\t')};\n`
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);
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console.log(`embedded ${migrations.length} migrations -> ${path.relative(process.cwd(), out)}`);
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