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quak/test/packaging/build-context.test.ts
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Make lint and test phases of the Dockerfile (closes #96)
Follows the template: Dockerfile.lint is gone; the Dockerfile has a lint
phase (eslint, prettier --check .) and a test phase (vitest, run as the
node user, which the not-writable-directory tests need), and its
last stage compiles and depends on both. script/lint and script/test
build one phase each with --no-cache; script/docker and script/cibuild
pass --no-cache, so CHECK_EPOCH and LINT_EPOCH are removed.
script/cibuild is the single image build, so CI runs lint and the tests
once each. The tests that checked the old layout are deleted,
REPO_POLICIES.md is re-copied and the README describes the new layout.

Model: opus-5-5
2026-09-23 04:50:28 +00:00

60 lines
2.2 KiB
TypeScript

// The Docker build context is load-bearing in two directions, and both
// failures are silent.
//
// Excluding too little: a worktree left under `.claude/` is copied into the
// image, vitest globs its `test/` tree as well as the real one, and the test
// phase runs the whole suite twice over while reporting success. A compiled
// `bin/quak` is ~100 MB of context nobody needs.
//
// Excluding too much: Prettier 3 reads `.gitignore` as a default ignore file,
// so dropping it from the context silently changes which files the lint
// phase's prettier check looks at compared to `make fmt-check` on the host.
//
// Neither shows up as a build failure, so they are asserted here.
import { describe, expect, it } from "vitest";
import { existsSync, readFileSync } from "node:fs";
import { fileURLToPath } from "node:url";
import { join } from "node:path";
const repoRoot = fileURLToPath(new URL("../../", import.meta.url));
const patterns = (name: string): string[] =>
readFileSync(join(repoRoot, name), "utf-8")
.split("\n")
.map((line) => line.trim())
.filter((line) => line !== "" && !line.startsWith("#"));
const dockerignore = patterns(".dockerignore");
describe(".dockerignore", () => {
// Everything here is either generated, enormous, or secret. `.claude/` is
// the correctness one: see the header comment and issue #25.
it.each([
".claude/",
".quak/",
"bin/quak",
"node_modules",
"coverage",
"dist",
".vitest-cache/",
".nyc_output/",
"*.tsbuildinfo",
])("keeps %s out of the build context", (pattern) => {
expect(dockerignore).toContain(pattern);
});
it("leaves .gitignore in the build context for prettier", () => {
expect(dockerignore).not.toContain(".gitignore");
});
// BuildKit lets a `Dockerfile.dockerignore` shadow the root one; such a
// file would silently give the build a different, unreviewed context —
// and eslint's flat config does not ignore dot-directories, so a stray
// `.claude/` worktree would be linted.
it("is not shadowed by a Dockerfile.dockerignore", () => {
expect(existsSync(join(repoRoot, "Dockerfile.dockerignore"))).toBe(
false,
);
});
});