56 lines
1.5 KiB
JavaScript
56 lines
1.5 KiB
JavaScript
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#!/usr/bin/env node
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/**
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* Pre-commit type check for staged TS files.
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*
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* Writes a temp tsconfig that extends the project root and pins
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* `files` to whatever lint-staged passed in. `tsc -p` then compiles
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* the whole dep graph from those entrypoints — catches errors in
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* the staged code AND in anything it imports — while still skipping
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* the 22s full-project pass.
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*
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* Replaces `tsc-files` (npm), which silently fails under pnpm because
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* its tsc-resolution path (typescript/../.bin/tsc) doesn't exist in
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* pnpm's virtual store layout.
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*/
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import { spawnSync } from 'node:child_process';
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import { mkdtempSync, rmSync, writeFileSync } from 'node:fs';
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import { tmpdir } from 'node:os';
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import { join, relative, resolve } from 'node:path';
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const cwd = process.cwd();
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const args = process.argv.slice(2);
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const files = args.filter((a) => /\.(ts|tsx)$/.test(a));
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if (files.length === 0) {
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process.exit(0);
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}
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const tmpDir = mkdtempSync(join(tmpdir(), 'tsc-staged-'));
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const tmpConfig = join(tmpDir, 'tsconfig.json');
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const relFiles = files.map((f) => relative(tmpDir, resolve(cwd, f)));
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writeFileSync(
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tmpConfig,
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JSON.stringify(
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{
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extends: relative(tmpDir, join(cwd, 'tsconfig.json')),
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compilerOptions: { noEmit: true, skipLibCheck: true },
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files: relFiles,
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include: [],
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},
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null,
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2,
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),
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);
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const tsc = spawnSync('pnpm', ['exec', 'tsc', '-p', tmpConfig, '--pretty'], {
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cwd,
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stdio: 'inherit',
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});
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rmSync(tmpDir, { recursive: true, force: true });
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process.exit(tsc.status ?? 1);
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