Files
orca/config/scripts/git-binary-compatibility-workflow.test.mjs
T
OrcaWinandm4air 38bcdf76ac perf(ci): reduce queue pressure without paid runners (#23053)
* ci: measure complete unit file costs for shard balancing

* perf(ci): reduce repeated PR setup and capture complete shard timings

* perf(ci): seed reusable main-branch native and typecheck caches

* fix(ci): stop superseded unit workflows from resisting cancellation

* perf(ci): reuse bundle fixtures and share the baseline Git build

* ci: record hosted gains and refresh main hook parity

* ci: retain default workers after performance-budget regression

* docs: record hosted mobile timing flake

---------

Co-authored-by: m4air <m4air@m4airs-Air.localdomain>
2026-09-25 22:48:28 -07:00

83 lines
4.1 KiB
JavaScript

import { readFileSync } from 'node:fs'
import { parse } from 'yaml'
import { describe, expect, it } from 'vitest'
const BASELINE_DIR = '~/.cache/orca-git-compat/git-2.25.5'
const BASELINE_ACTION = './.github/actions/prepare-git-compatibility'
const baselineSteps = parse(readFileSync(`${BASELINE_ACTION}/action.yml`, 'utf8')).runs.steps
const gateSteps = () =>
parse(readFileSync('.github/workflows/pr.yml', 'utf8')).jobs.git_compatibility.steps
const stepNamed = (name) => gateSteps().find((step) => step.name === name)
describe('Git binary compatibility PR gate', () => {
it('runs the real-binary contract at each compatibility boundary', () => {
const run = stepNamed('Verify Git binary compatibility matrix')?.run
expect(run).toContain('ORCA_GIT_COMPAT_BINARY="$HOME/.cache/orca-git-compat/git-2.25.5/git"')
expect(run).toContain('alpine/git:edge-2.38.1|2.38.1')
expect(run).toContain('alpine/git:v2.49.1|2.49.1')
expect(run).toContain('ORCA_GIT_COMPAT_IMAGE="$image"')
expect(run).toContain('src/shared/git-binary-compatibility.test.ts')
expect(run).toContain('pids+=("$!")')
expect(run).toContain('wait "$pid" || status=1')
})
it('builds the pinned baseline tarball into the cached directory', () => {
const run = baselineSteps.find((step) => step.name === 'Build the baseline Git binary')?.run
expect(run).toContain('git-2.25.5.tar.gz')
// Why asserted: the sha256 check only runs on the build path, so a cached binary
// must come from a key that pins the same version the tarball line declares.
expect(run).toContain('if [ -x "$source/git" ]; then')
expect(run).toContain('41662c52fc16fec4963bfc41075e71f8ead6b5e386797eb6f9a1111ff95a8ddf')
expect(run).toContain('-j"$(nproc)"')
expect(run).toContain('NO_GETTEXT=YesPlease NO_TCLTK=YesPlease NO_PYTHON=YesPlease git')
expect(run).toContain('sha256sum --check')
expect(run).toContain('find "$source" -name \'*.o\' -delete')
// The cached path and the build path must be the same directory or the guard
// above would rebuild on every run while still reporting a cache hit.
expect(run).toContain('source="$HOME/.cache/orca-git-compat/git-2.25.5"')
})
it('finishes the baseline build before the timed lanes start', () => {
const steps = gateSteps()
const names = baselineSteps.map((step) => step.name)
const cacheIndex = names.indexOf('Cache baseline Git build')
const buildIndex = names.indexOf('Build the baseline Git binary')
const prepareIndex = steps.findIndex((step) => step.uses === BASELINE_ACTION)
const matrixIndex = steps.findIndex(
(step) => step.name === 'Verify Git binary compatibility matrix'
)
expect(cacheIndex).toBeGreaterThanOrEqual(0)
expect(cacheIndex).toBeLessThan(buildIndex)
expect(prepareIndex).toBeGreaterThanOrEqual(0)
expect(prepareIndex).toBeLessThan(matrixIndex)
// Why asserted: each lane is bounded by Vitest's per-test timeout while it waits on
// container starts, so a `make -j$(nproc)` sharing the runner shows up as a timeout
// in whichever boundary case is running rather than as a slow build.
expect(steps[matrixIndex].run).not.toContain('make -C')
expect(baselineSteps[cacheIndex].with.path).toBe(BASELINE_DIR)
expect(baselineSteps[cacheIndex].with.key).toBe(
'git-compat-baseline-${{ runner.os }}-${{ runner.arch }}-2.25.5'
)
})
it('warms the same baseline on main so newly opened PRs can restore it', () => {
const warmer = parse(readFileSync('.github/workflows/ci-cache-warmup.yml', 'utf8'))
expect(warmer.jobs.warm.steps.some((step) => step.uses === BASELINE_ACTION)).toBe(true)
expect(warmer.on.push.paths).toContain('.github/actions/prepare-git-compatibility/**')
expect(warmer.on.pull_request.paths).toContain('.github/actions/prepare-git-compatibility/**')
})
it('pulls every matrix image before any lane runs', () => {
const run = stepNamed('Verify Git binary compatibility matrix')?.run
// A lazy pull inside one lane stalls whatever test the sibling lane is timing.
const [beforeLanes] = run.split('pids=()')
expect(beforeLanes).toContain('docker pull --quiet "${spec%%|*}"')
})
})