docker testing rewrite: bake the image, drop the allowlist, kill the quoting (#750)

* docker testing rewrite: bake the image, drop the allowlist, kill the quoting

- new `pnpm gha <script>` wrapper. one entry point for running any node
  script in the GHA-like container; replaces the runtime apt-get +
  useradd + chown ceremony in `action/utils/docker.ts`.
- `action/Dockerfile` bakes ubuntu:24.04 + node 24 + gh + jq + sudo +
  testuser at uid 1000. `action/docker-entrypoint.sh` remaps to the host
  uid/gid and `exec`s the requested command — no `bash -c` nesting, no
  `escapeForDoubleQuotes`.
- env passthrough: full `process.env` (+ `.env` via dotenv) flows through
  `--env-file`, multi-line values via `-e` fallback. drops
  `EnvFilterMode` / `testEnvAllowList`.
- image rebuild is content-hash gated on Dockerfile + entrypoint; volume
  is versioned by hash so a stale `node_modules` cache from an old image
  can't poison a new one.
- `action/play.ts` slimmed to a CLI; `run()` extracted to
  `action/utils/runFixture.ts`. drops the `--local` / `PLAY_LOCAL` dual
  mode in favor of explicit `play:local` / `runtest:local` scripts.
- `action/test/run.ts` no longer self-relaunches into docker — that's
  `gha`'s job now.
- `action/test/coverage.ts` `ALWAYS_RUN_ALL` updated to track the new
  files.
- `wiki/docker.md` rewritten (243 → 105 lines). `wiki/action-tests.md`,
  `wiki/billing.md`, `wiki/adversarial.md`, `README.md`, `AGENTS.md` all
  updated to drop `--local` / `PLAY_LOCAL` references.

verified end-to-end: `pnpm play` runs the default fixture against
pullfrog/scratch, exit 0; `sudo unshare --pid` still works inside the
container; `pnpm runtest` boots through the wrapper.

* gha: address review feedback + 3 related issues found locally

review-flagged:
- bare `pnpm gha --build` now builds the image and exits 0 (was
  printing help and exiting 1 — docs claimed it was a valid standalone)
- `initVolumeOwnership` skipped when the named volume already exists;
  saves the ~240ms `docker run … chown` on every warm invocation
- `GIT_SSH_COMMAND` gate widened to any `id_*` private key (was hard-
  coded to `id_rsa`, leaving ed25519-only linux contributors with the
  default ssh config). dropped `-i` so ssh picks whichever key exists
- new `action/.dockerignore` — partial mitigation noted: BuildKit
  (default since docker 23) only sends files referenced by the
  Dockerfile (~42B in practice), so the perf concern is mostly
  hypothetical. file is still worth keeping for `DOCKER_BUILDKIT=0`
  fallback and as documented intent for future `COPY . .` additions

related issues found while validating locally:
- `parseArgs` now stops flag-parsing at the first positional (or
  literal `--`); `pnpm gha test/run.ts --build` previously
  intercepted `--build` as a gha flag instead of forwarding to
  `test/run.ts`
- new `pnpm gha --clean` command prunes orphan `pullfrog-gha:*`
  images and `pullfrog-gha-node-modules-*` volumes whose hash
  doesn't match the current Dockerfile (each Dockerfile/entrypoint
  edit creates a fresh hash and orphans the prior pair, ~600MB +
  ~200MB each — without a cleaner they accumulate silently)
- `--shell` without a TTY now fails fast with an actionable message
  before docker is invoked, instead of producing the confusing
  `the input device is not a TTY` from docker run

wiki updated: documents `--clean`, the parseArgs passthrough rule,
and a new "Reclaiming disk" section.

* gha: fidelity, flexibility, and signal-safety improvements

investigated local fidelity vs the real GHA ubuntu-24.04 runner and
addressed the gaps that have actually bitten contributors or could.

fidelity (image now matches GHA closer):
- bake build-essential, wget, xz-utils, file alongside the existing
  toolset. gh, jq, git, python3, sudo, ssh, build-essential, wget,
  xz, file, unzip, curl all present. native module builds (node-gyp,
  any package missing arm64 prebuilts) now work; common agent shell
  calls don't hit ENOENT
- `host.docker.internal:host-gateway` flag wires the host into the
  container's DNS on linux (macOS Docker Desktop bakes it in). lets
  scripts that hit a local dev server use `API_URL=http://host.docker.
  internal:3100` and work identically on both platforms
- `--init` makes tini PID 1, fixing signal forwarding during the
  pre-exec warmup window (Ctrl-C was previously taking up to 10s to
  tear down because bash-as-PID-1 swallowed the signal)
- pnpm version is correctly pinned via the workspace's
  `packageManager` field — corepack resolves it at install time;
  verified via the new `--doctor` command

flexibility (new affordances):
- `pnpm gha --doctor` runs an inside-the-container fidelity audit:
  os + arch + node/pnpm/python versions, version snapshots of every
  baked tool, env vars (CI, HOME, TMPDIR), uid/gid, and the
  host.docker.internal resolution. useful for "works in CI fails
  locally" or vice versa
- `pnpm gha --build --no-cache` busts the docker layer cache when
  an apt mirror, base image, or external download has changed
  upstream
- entrypoint's `pnpm install` warmup is now wrapped in a `flock` on
  a file in the shared node_modules volume — concurrent `pnpm gha`
  invocations (e.g. play in one terminal, runtest in another)
  serialize their install instead of racing

docs:
- new "Gaps (known)" section in wiki/docker.md explicitly calling
  out the things this system can't do yet, including the missing
  `uses: ./action` semantics gap that
  `.github/workflows/action-gha-e2e-adhoc.yml` currently fills via
  GHA only (designing a local `pnpm gha-action <fixture>` is on the
  roadmap), service containers, parallel-run sharing, and arch
  differences (arm64 vs amd64)

* docs: audit + corrections after testing fronts

self-audit pass for stale references and incomplete pointers:

- wiki/browser.md: `Docker (node:24)` → `pnpm gha container (ubuntu:24.04)`.
  the substance was right (chrome not preinstalled) but the base image
  reference was stale.
- wiki/docker.md: the "Permission errors" troubleshooting line claimed
  the node_modules volume is chowned on every run; now correctly says
  "owned by the host uid on first creation; warm runs skip the chown"
  to match the actual behavior after the initVolumeOwnership fix.
- wiki/action-tests.md: `API_URL` env-var doc now mentions BOTH paths
  (`localhost:` from play:local, `host.docker.internal:` from inside
  the container). Proxy/router recipe now shows both invocations
  side-by-side instead of saying "must use play:local".
- wiki/billing.md: same dual-recipe update for the loop-including-the-
  action proxy walkthrough.
- gha.ts header: expanded the usage block to include --clean / --doctor /
  --no-cache / --shell-TTY, added the host.docker.internal note, and
  pointed at wiki/docker.md for design rationale.

self-document check: a future agent landing on this code can answer
"how do I run a fixture / debug in shell / add a tool / diagnose
fidelity / reach a local dev server" purely from gha.ts header +
wiki/docker.md without spelunking through the entrypoint or git
history.
This commit is contained in:
Colin McDonnell
2026-05-16 03:12:25 +00:00
committed by pullfrog[bot]
parent 8e1acfba99
commit 76879b27ec
10 changed files with 774 additions and 452 deletions
+31
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# the Dockerfile only `COPY`s docker-entrypoint.sh, so most of this is
# defense-in-depth — modern docker BuildKit (default since docker 23)
# already prunes unreferenced files from the build context. but:
# - documents intent for future maintainers who add `COPY . .`
# - resurfaces the bytes-saved win if someone disables BuildKit
# (DOCKER_BUILDKIT=0) or adopts a builder that doesn't prune
# - keeps `docker build` snappy even on cold builders that DO send
# everything
# pnpm-managed workspace deps — large and never needed at build time
node_modules/
# secrets — must never enter an image, even by accident
.env
.env.*
!.env.example
# build outputs
dist/
build/
*.log
# editor / VCS noise
.DS_Store
.idea/
.vscode/
# tests + fixtures we don't need at build time
coverage/
test/
.scripts/
+78
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# pullfrog GHA-like test container.
#
# baked once at image build time, used by `pnpm gha`. all runtime cost
# (apt-get, useradd, sudoers wiring) is paid here so each `gha` invocation
# is a single `docker run` with no in-container setup.
#
# rebuild is content-hash gated by gha.ts (Dockerfile + docker-entrypoint.sh).
# bump anything in this file or the entrypoint and the next `pnpm gha` rebuilds.
FROM ubuntu:24.04
ENV DEBIAN_FRONTEND=noninteractive
# core toolset matching what GHA `ubuntu-24.04` runners ship: gh, jq, git,
# python3, ssh client, plus the compression + build-essential surface that
# `pnpm install` / `node-gyp` / agent shell calls regularly need. keeps
# test-time invocations of these tools honest (no "works on the runner,
# breaks in the local container").
RUN apt-get update -qq \
&& apt-get install -qq -y --no-install-recommends \
build-essential \
ca-certificates \
curl \
file \
git \
gnupg \
jq \
openssh-client \
python3 \
sudo \
unzip \
wget \
xz-utils \
&& rm -rf /var/lib/apt/lists/*
# node 24 from nodesource + corepack (provides pnpm without a global install).
RUN curl -fsSL https://deb.nodesource.com/setup_24.x | bash - \
&& apt-get install -y nodejs \
&& rm -rf /var/lib/apt/lists/* \
&& corepack enable
# gh cli (matches GHA pre-installed tooling).
RUN mkdir -p /etc/apt/keyrings \
&& curl -fsSL https://cli.github.com/packages/githubcli-archive-keyring.gpg \
| gpg --dearmor -o /etc/apt/keyrings/githubcli-archive-keyring.gpg \
&& chmod go+r /etc/apt/keyrings/githubcli-archive-keyring.gpg \
&& echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" \
> /etc/apt/sources.list.d/github-cli.list \
&& apt-get update -qq \
&& apt-get install -qq -y gh \
&& rm -rf /var/lib/apt/lists/*
# ubuntu:24.04 ships a default `ubuntu` user at uid 1000 — remove it so we
# can place `testuser` at 1000 (the typical macOS dev uid). the entrypoint
# remaps to the host uid/gid at runtime if they differ.
RUN userdel -r ubuntu 2>/dev/null || true \
&& groupadd -g 1000 testuser \
&& useradd -u 1000 -g 1000 -m -s /bin/bash testuser \
&& echo "testuser ALL=(ALL) NOPASSWD: ALL" > /etc/sudoers.d/testuser \
&& chmod 0440 /etc/sudoers.d/testuser
# layout matching the bind mount + named volume targets in gha.ts.
RUN mkdir -p /app/action /app/action/node_modules /tmp/home/.config /tmp/home/.cache \
&& chown -R testuser:testuser /app /tmp/home
# CI=true is critical: `shell.ts` PID-namespace sandbox keys off it. baking
# it ensures security tests can't pass vacuously because someone forgot the
# flag.
ENV HOME=/tmp/home \
TMPDIR=/tmp \
CI=true \
COREPACK_ENABLE_DOWNLOAD_PROMPT=0
COPY docker-entrypoint.sh /entrypoint.sh
RUN chmod +x /entrypoint.sh
WORKDIR /app/action
ENTRYPOINT ["/entrypoint.sh"]
+63
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#!/bin/bash
# entrypoint for the pullfrog GHA-like container (see Dockerfile).
#
# - remaps `testuser` to the host uid/gid so bind-mounted files keep correct
# ownership after writes inside the container
# - on linux hosts, copies host ssh keys into testuser's $HOME (darwin hosts
# forward the ssh-agent socket instead, no copy needed)
# - installs action workspace deps (volume-cached, ~1.5s warm)
# - exec's the requested command as testuser; argv is preserved (no nested
# `bash -c`, no shell quoting hazards)
set -euo pipefail
HOST_UID="${HOST_UID:-1000}"
HOST_GID="${HOST_GID:-1000}"
if [ "$HOST_UID" != "1000" ] || [ "$HOST_GID" != "1000" ]; then
groupmod -g "$HOST_GID" testuser 2>/dev/null || true
usermod -u "$HOST_UID" -g "$HOST_GID" testuser 2>/dev/null || true
# chown top-level dirs only — recursive chown would fail on `:ro` bind
# mounts (e.g. macOS known_hosts mounted directly into /tmp/home/.ssh).
chown "$HOST_UID:$HOST_GID" /tmp/home /tmp/home/.config /tmp/home/.cache 2>/dev/null || true
chown "$HOST_UID:$HOST_GID" /app /app/action /app/action/node_modules 2>/dev/null || true
fi
# linux hosts: copy host ssh keys into testuser's $HOME (we own this dir,
# safe to chown). darwin hosts forward the ssh-agent socket instead and
# bind-mount known_hosts read-only — nothing to do here.
if [ -d /tmp/.ssh-host ]; then
mkdir -p /tmp/home/.ssh
cp /tmp/.ssh-host/id_* /tmp/home/.ssh/ 2>/dev/null || true
chmod 600 /tmp/home/.ssh/id_* 2>/dev/null || true
ssh-keyscan -t ed25519,rsa github.com >> /tmp/home/.ssh/known_hosts 2>/dev/null || true
chmod 644 /tmp/home/.ssh/known_hosts 2>/dev/null || true
chown -R "$HOST_UID:$HOST_GID" /tmp/home/.ssh 2>/dev/null || true
# set GIT_SSH_COMMAND if any private key got copied. don't pin a
# specific key with -i — let ssh pick whatever's in /tmp/home/.ssh
# (covers id_rsa, id_ed25519, id_ecdsa, etc.).
if ls /tmp/home/.ssh/id_* 2>/dev/null | grep -qv '\.pub$'; then
export GIT_SSH_COMMAND="ssh -o UserKnownHostsFile=/tmp/home/.ssh/known_hosts -o StrictHostKeyChecking=no"
fi
fi
# warm the volume-cached node_modules. frozen-lockfile + ignore-scripts keeps
# this idempotent and fast (~1.5s when nothing changed).
#
# the lockfile lives IN the shared node_modules volume so concurrent
# `pnpm gha` invocations (e.g. `pnpm play` in one terminal and
# `pnpm runtest` in another) serialize their install instead of racing.
# `flock -w 120` waits up to 2min before giving up — well under any
# real-world install time but short enough to surface true deadlocks.
mkdir -p /app/action/node_modules
flock -w 120 /app/action/node_modules/.gha-install.lock \
sudo -u testuser -E env HOME=/tmp/home \
corepack pnpm install --frozen-lockfile --ignore-scripts >/dev/null
# `--shell` drops into an interactive bash for debugging the container.
if [ "${1:-}" = "--shell" ]; then
exec sudo -u testuser -E env HOME=/tmp/home bash
fi
# exec the command as testuser, preserving env. argv passes through unchanged
# — no `bash -c` nesting, no quoting required by callers.
exec sudo -u testuser -E env HOME=/tmp/home "$@"
+494
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// run any node script inside the pullfrog GHA-like container.
//
// usage:
// pnpm gha <script> [args…] # run script in container
// pnpm gha --shell # interactive bash (requires TTY)
// pnpm gha --build [--no-cache] # force-rebuild image
// pnpm gha --clean # prune orphan images/volumes
// pnpm gha --doctor # versions of every baked tool
//
// the container is a baked ubuntu:24.04 image (see Dockerfile) with the
// same toolset as GHA `ubuntu-24.04` runners. host env passes through
// verbatim — no allowlist. multi-line values (RSA keys) handled via -e
// fallback; everything else flows through `--env-file` for cleanliness.
//
// host services are reachable at `host.docker.internal:<port>` (works on
// both linux and macOS — see --add-host below).
//
// rebuild is content-hash gated on Dockerfile + docker-entrypoint.sh.
//
// design rationale + gaps: wiki/docker.md.
import { spawnSync } from "node:child_process";
import { createHash } from "node:crypto";
import { existsSync, mkdirSync, readFileSync, unlinkSync, writeFileSync } from "node:fs";
import { platform, tmpdir } from "node:os";
import { dirname, join, resolve } from "node:path";
import { fileURLToPath, pathToFileURL } from "node:url";
import { config } from "dotenv";
const __dirname = dirname(fileURLToPath(import.meta.url));
const actionDir = __dirname;
const repoRoot = join(actionDir, "..");
config({ path: join(actionDir, ".env") });
config({ path: join(repoRoot, ".env") });
// host env vars that would actively conflict with the container's own
// configuration (paths, identity, shell). everything else passes through.
const HOST_ONLY_VARS = new Set([
"PATH",
"HOME",
"USER",
"LOGNAME",
"SHELL",
"PWD",
"OLDPWD",
"TMPDIR",
"TMP",
"TEMP",
"DOCKER_HOST",
"DOCKER_CONFIG",
"_",
"SHLVL",
"PS1",
"PS2",
"TERM_PROGRAM",
"TERM_PROGRAM_VERSION",
"TERM_SESSION_ID",
"__CF_USER_TEXT_ENCODING",
"XPC_SERVICE_NAME",
"XPC_FLAGS",
"Apple_PubSub_Socket_Render",
"COMMAND_MODE",
"COLORTERM",
"ITERM_PROFILE",
"ITERM_SESSION_ID",
]);
type Args = {
forceBuild: boolean;
noCache: boolean;
shell: boolean;
clean: boolean;
doctor: boolean;
passthrough: string[];
};
/**
* parses gha-level flags up to (but not including) the first positional
* argument. anything after the first positional, or after a literal `--`,
* passes through verbatim to the inner script. this prevents
* `pnpm gha test/run.ts --build` from intercepting `--build` as a
* gha flag.
*/
function parseArgs(argv: string[]): Args {
const out: Args = {
forceBuild: false,
noCache: false,
shell: false,
clean: false,
doctor: false,
passthrough: [],
};
let i = 0;
while (i < argv.length) {
const a = argv[i];
if (a === "--") {
out.passthrough.push(...argv.slice(i + 1));
return out;
}
if (a === "--build") out.forceBuild = true;
else if (a === "--no-cache") {
out.forceBuild = true;
out.noCache = true;
} else if (a === "--shell") out.shell = true;
else if (a === "--clean") out.clean = true;
else if (a === "--doctor") out.doctor = true;
else if (a === "--help" || a === "-h") {
showHelp();
process.exit(0);
} else {
// first positional — script name and everything after passes through.
out.passthrough.push(...argv.slice(i));
return out;
}
i++;
}
return out;
}
function showHelp(): void {
process.stdout.write(`Usage: pnpm gha <script> [args…]
pnpm gha --shell
pnpm gha --build [--no-cache]
pnpm gha --clean
pnpm gha --doctor
Run a node script inside the pullfrog GHA-like container. Mirrors the
GitHub Actions ubuntu-24.04 runner toolset (gh, jq, python3, sudo, +
build-essential / wget / xz / file). Host env passes through verbatim.
The host is reachable from inside the container at host.docker.internal
(useful for scripts that hit your local dev server).
Options:
--build rebuild the current image (otherwise rebuilt automatically
when Dockerfile or docker-entrypoint.sh content changes).
on its own, builds and exits.
--no-cache pair with --build to also bust docker's layer cache;
useful when an apt mirror or base image changed.
--shell drop into an interactive bash inside the container.
requires a TTY.
--clean prune orphaned pullfrog-gha:* images and node_modules
volumes whose hash doesn't match the current Dockerfile.
--doctor print version info for tools inside the container (node,
pnpm, gh, jq, git, python3, ssh, …). useful for diagnosing
"works in CI fails locally" or vice versa.
-h, --help show this message.
Pass-through:
Anything after the first positional argument (or after a literal \`--\`)
goes to the inner script verbatim. so \`pnpm gha test/run.ts --build\`
passes \`--build\` to test/run.ts, not to gha.
Examples:
pnpm gha play.ts
pnpm gha play.ts --raw '{"prompt":"hi"}'
pnpm gha test/run.ts smoke
pnpm gha --shell
pnpm gha --build # build image, then exit
pnpm gha --build --no-cache # rebuild from scratch
pnpm gha --clean # reclaim disk from old image hashes
pnpm gha --doctor # fidelity audit
`);
}
function ensureDocker(): void {
if (platform() === "win32") {
fail("pnpm gha is not supported on native windows. use wsl2.");
}
const probe = spawnSync("docker", ["info"], { stdio: "ignore" });
if (probe.status !== 0) {
fail("docker is not running. start docker desktop and retry.");
}
}
function fail(msg: string): never {
process.stderr.write(`error: ${msg}\n`);
process.exit(1);
}
type ImageRef = { tag: string; volumeName: string };
function imageRefFor(ctx: { dockerfile: string; entrypoint: string }): ImageRef {
const hash = createHash("sha256")
.update(readFileSync(ctx.dockerfile))
.update(readFileSync(ctx.entrypoint))
.digest("hex")
.slice(0, 12);
return {
tag: `pullfrog-gha:${hash}`,
// version the volume by image hash so a stale node_modules cache from
// an old image (e.g. different node major) can't poison a new image.
volumeName: `pullfrog-gha-node-modules-${hash}`,
};
}
/**
* remove pullfrog-gha:* images and pullfrog-gha-node-modules-* volumes
* whose hash doesn't match the current Dockerfile + entrypoint. each
* Dockerfile/entrypoint edit creates a fresh hash and orphans the prior
* pair; without periodic cleanup these accumulate (~600MB image + ~200MB
* node_modules each).
*/
function cleanOrphans(currentRef: ImageRef): void {
const imgList = spawnSync("docker", ["image", "ls", "--format", "{{.Repository}}:{{.Tag}}"], {
encoding: "utf8",
});
const images = (imgList.stdout ?? "")
.split("\n")
.filter((s) => s.startsWith("pullfrog-gha:") && s !== currentRef.tag);
if (images.length > 0) {
process.stderr.write(`» removing ${images.length} orphan image(s): ${images.join(", ")}\n`);
spawnSync("docker", ["image", "rm", "-f", ...images], { stdio: "inherit" });
}
const volList = spawnSync("docker", ["volume", "ls", "-q"], { encoding: "utf8" });
const volumes = (volList.stdout ?? "")
.split("\n")
.filter((s) => s.startsWith("pullfrog-gha-node-modules-") && s !== currentRef.volumeName);
if (volumes.length > 0) {
process.stderr.write(`» removing ${volumes.length} orphan volume(s): ${volumes.join(", ")}\n`);
spawnSync("docker", ["volume", "rm", ...volumes], { stdio: "inherit" });
}
if (images.length === 0 && volumes.length === 0) {
process.stderr.write("» no orphans to clean (all matching current image hash)\n");
}
}
function buildImageIfNeeded(ctx: {
ref: ImageRef;
force: boolean;
noCache: boolean;
dockerfile: string;
}): void {
if (!ctx.force) {
const inspect = spawnSync("docker", ["image", "inspect", ctx.ref.tag], { stdio: "ignore" });
if (inspect.status === 0) return;
}
process.stderr.write(
`» building ${ctx.ref.tag}${ctx.noCache ? " (--no-cache)" : ""} (one-time, ~30-60s)…\n`
);
const buildArgs = ["build", "-t", ctx.ref.tag, "-f", ctx.dockerfile];
if (ctx.noCache) buildArgs.push("--no-cache");
buildArgs.push(actionDir);
const build = spawnSync("docker", buildArgs, { stdio: "inherit" });
if (build.status !== 0) {
fail("image build failed");
}
}
/**
* print versions of every tool we expect to be available, so contributors
* can sanity-check fidelity with the GHA `ubuntu-24.04` runner when a test
* passes locally but fails in CI (or vice versa).
*/
function runDoctor(ref: ImageRef): void {
// multi-line bash script; spawnSync passes the whole thing as one argv
// entry so there's no nested-shell quoting to worry about, and `do` is
// not followed by a stray semicolon.
const script = `set +e
echo '--- container ---'
grep -E '^(NAME|VERSION)=' /etc/os-release
echo "arch=$(uname -m)"
echo
echo '--- runtimes ---'
echo "node $(node --version)"
if cd /app/action 2>/dev/null; then
echo "pnpm $(corepack pnpm --version) (corepack-resolved from packageManager)"
else
echo "pnpm $(pnpm --version) (system fallback — /app/action not mounted?)"
fi
python3 --version
echo
echo '--- tools ---'
for t in gh jq git ssh curl wget tar gzip xz unzip file make gcc g++ sudo unshare awk sed grep find xargs; do
if ! command -v "$t" >/dev/null 2>&1; then
printf ' %-10s MISSING\\n' "$t"
continue
fi
case "$t" in
ssh|unzip) v=$("$t" -V 2>&1 | head -1) ;;
*) v=$("$t" --version 2>&1 | head -1) ;;
esac
printf ' %-10s %s\\n' "$t" "$v"
done
echo
echo '--- env ---'
echo "CI=$CI HOME=$HOME TMPDIR=$TMPDIR"
echo "doctor runs as: $(whoami) (uid=$(id -u) gid=$(id -g))"
echo "tests run as: testuser (uid remapped to host uid at entrypoint)"
echo "host.docker.internal -> $(getent hosts host.docker.internal | awk '{print $1}' || echo UNRESOLVED)"
`;
const result = spawnSync(
"docker",
[
"run",
"--rm",
"-v",
`${actionDir}:/app/action:cached`,
"--add-host=host.docker.internal:host-gateway",
"--entrypoint",
"/bin/bash",
ref.tag,
"-c",
script,
],
{ stdio: "inherit" }
);
process.exit(result.status ?? 1);
}
function volumeExists(name: string): boolean {
return spawnSync("docker", ["volume", "inspect", name], { stdio: "ignore" }).status === 0;
}
function initVolumeOwnership(ctx: { ref: ImageRef; uid: number; gid: number }): void {
// a fresh named volume is owned by root; chown once on creation. on warm
// runs the volume already has the right ownership and `docker run … chown`
// is sub-second pure overhead — skip it.
if (volumeExists(ctx.ref.volumeName)) return;
spawnSync(
"docker",
[
"run",
"--rm",
"--entrypoint",
"chown",
"-v",
`${ctx.ref.volumeName}:/app/action/node_modules`,
ctx.ref.tag,
"-R",
`${ctx.uid}:${ctx.gid}`,
"/app/action/node_modules",
],
{ stdio: "ignore" }
);
}
type EnvParts = { envFile: string; multiLineFlags: string[] };
function buildEnvParts(env: NodeJS.ProcessEnv): EnvParts {
const dir = join(tmpdir(), "pullfrog-gha");
mkdirSync(dir, { recursive: true });
const envFile = join(dir, `env-${process.pid}-${Date.now()}.list`);
const lines: string[] = [];
const multiLineFlags: string[] = [];
for (const key of Object.keys(env)) {
if (HOST_ONLY_VARS.has(key)) continue;
const value = env[key];
if (value === undefined) continue;
// docker --env-file is line-oriented and does not support multi-line
// values. fall back to -e for those (RSA keys, multi-line PEMs, etc.).
if (value.includes("\n") || value.includes("\r")) {
multiLineFlags.push("-e", `${key}=${value}`);
} else {
lines.push(`${key}=${value}`);
}
}
writeFileSync(envFile, `${lines.join("\n")}\n`, { mode: 0o600 });
return { envFile, multiLineFlags };
}
function buildSshFlags(home: string | undefined): string[] {
const flags: string[] = [];
if (!home) return flags;
if (platform() === "darwin") {
const knownHosts = join(home, ".ssh", "known_hosts");
if (existsSync(knownHosts)) {
flags.push("-v", `${knownHosts}:/tmp/home/.ssh/known_hosts:ro`);
}
flags.push(
"-v",
"/run/host-services/ssh-auth.sock:/run/host-services/ssh-auth.sock",
"-e",
"SSH_AUTH_SOCK=/run/host-services/ssh-auth.sock"
);
} else {
const sshDir = join(home, ".ssh");
if (existsSync(sshDir)) {
flags.push("-v", `${sshDir}:/tmp/.ssh-host:ro`);
}
}
return flags;
}
function main(): void {
const args = parseArgs(process.argv.slice(2));
ensureDocker();
const dockerfile = join(actionDir, "Dockerfile");
const entrypoint = join(actionDir, "docker-entrypoint.sh");
const ref = imageRefFor({ dockerfile, entrypoint });
if (args.clean) {
cleanOrphans(ref);
if (!args.shell && !args.doctor && args.passthrough.length === 0 && !args.forceBuild) {
process.exit(0);
}
}
buildImageIfNeeded({ ref, force: args.forceBuild, noCache: args.noCache, dockerfile });
if (args.doctor) {
runDoctor(ref);
// runDoctor exits; unreachable.
}
// standalone `--build`: image's done, nothing to run.
if (!args.shell && args.passthrough.length === 0) {
if (!args.forceBuild) {
showHelp();
process.exit(1);
}
process.exit(0);
}
// node sets isTTY to `true` for a terminal stdin, `undefined` otherwise
// (never `false`). check truthiness, not equality.
if (args.shell && !process.stdin.isTTY) {
fail("--shell needs a TTY (stdin is not a terminal). run from an interactive shell.");
}
const uid = process.getuid?.() ?? 1000;
const gid = process.getgid?.() ?? 1000;
initVolumeOwnership({ ref, uid, gid });
const envParts = buildEnvParts(process.env);
const sshFlags = buildSshFlags(process.env.HOME);
const runArgs: string[] = [
"run",
"--rm",
// `--init` uses tini as PID 1, which forwards signals (SIGINT/SIGTERM)
// to our entrypoint and reaps zombies. Without it, bash-as-PID-1
// swallows Ctrl-C during the pre-exec warmup phase.
"--init",
args.shell ? "-it" : "-t",
"--privileged",
// make the host reachable from inside the container at a stable name
// (macOS Docker Desktop bakes this in; the flag makes Linux match,
// matters when scripts hit local dev servers like API_URL=
// http://host.docker.internal:3100).
"--add-host=host.docker.internal:host-gateway",
"-v",
`${actionDir}:/app/action:cached`,
"-v",
`${ref.volumeName}:/app/action/node_modules`,
"-w",
"/app/action",
"--env-file",
envParts.envFile,
"-e",
`HOST_UID=${uid}`,
"-e",
`HOST_GID=${gid}`,
...envParts.multiLineFlags,
...sshFlags,
ref.tag,
];
if (args.shell) {
runArgs.push("--shell");
} else {
// resolve script paths relative to actionDir (matches `pnpm -C action`
// mental model). absolute paths and bare flags pass through unchanged.
const [script, ...rest] = args.passthrough;
if (script === undefined) {
fail("internal: passthrough empty");
}
runArgs.push("node", script, ...rest);
}
let exitCode = 1;
try {
const result = spawnSync("docker", runArgs, { stdio: "inherit" });
exitCode = result.status ?? 1;
} finally {
try {
unlinkSync(envParts.envFile);
} catch {
// best-effort; tmpdir is GC'd by the OS regardless.
}
}
process.exit(exitCode);
}
const isDirectExecution = process.argv[1]
? import.meta.url === pathToFileURL(resolve(process.argv[1])).href
: false;
if (isDirectExecution) {
main();
}
+5 -2
View File
@@ -16,8 +16,11 @@
"typecheck": "tsc --noEmit",
"build": "node esbuild.config.js && tsc -p tsconfig.exports.json",
"check:entrypoints": "node scripts/check-entrypoint-imports.ts",
"play": "node play.ts",
"runtest": "node test/run.ts",
"gha": "node gha.ts",
"play": "node gha.ts play.ts",
"play:local": "node play.ts",
"runtest": "node gha.ts test/run.ts",
"runtest:local": "node test/run.ts",
"scratch": "node scratch.ts",
"upDeps": "pnpm up --latest",
"lock": "pnpm install --no-frozen-lockfile",
+20 -130
View File
@@ -1,22 +1,22 @@
import { execSync } from "node:child_process";
import { mkdtemp } from "node:fs/promises";
import { devNull, tmpdir } from "node:os";
// thin CLI for ad-hoc fixture runs against the Pullfrog action.
// for the GHA-like containerized version, run `pnpm gha play.ts […]`.
import { dirname, join, resolve } from "node:path";
import { fileURLToPath, pathToFileURL } from "node:url";
import arg from "arg";
import { config } from "dotenv";
import type { AgentResult } from "./agents/shared.ts";
import { type Inputs, main } from "./main.ts";
import type { Inputs } from "./main.ts";
import { defineFixture } from "./test/utils.ts";
import { log } from "./utils/cli.ts";
import { runInDocker } from "./utils/docker.ts";
import { ensureGitHubToken } from "./utils/github.ts";
import { isInsideDocker } from "./utils/globals.ts";
import { setupTestRepo } from "./utils/setup.ts";
import { run } from "./utils/runFixture.ts";
const __dirname = dirname(fileURLToPath(import.meta.url));
config();
config({ path: join(__dirname, "..", ".env") });
/**
* default play fixture for ad-hoc testing.
* change this freely without affecting any tests.
* default fixture for ad-hoc `pnpm play` runs. change this freely without
* affecting any tests — it's only consumed by this script's no-arg path.
*/
export const playFixture = defineFixture(
{
@@ -25,85 +25,6 @@ export const playFixture = defineFixture(
{ localOnly: true }
);
const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);
// load action's .env file in case it exists for local dev
config();
// also load .env from repo root (for monorepo structure)
config({ path: join(__dirname, "..", ".env") });
export async function run(inputsOrPrompt: Inputs | string): Promise<AgentResult> {
await ensureGitHubToken();
// play.ts is a CI-emulator — isolate it from the developer's user- and
// system-scope gitconfig so checks like `validatePushDestination` see the
// raw stored remote URL instead of values mutated by `url.*.insteadOf`
// rewrites (a common SSH-auth convenience on dev boxes). CI runners have
// empty gitconfigs so this is a no-op there; locally it makes `pnpm play`
// and real runs produce identical git state. `os.devNull` canonicalizes
// the null device across Unix (`/dev/null`) and Windows (`\\.\nul`).
process.env.GIT_CONFIG_GLOBAL = devNull;
process.env.GIT_CONFIG_SYSTEM = devNull;
// create unique temp directory path in OS temp location for parallel execution
// use a parent dir from mkdtemp, then clone into a 'repo' subdirectory
const tempParent = await mkdtemp(join(tmpdir(), "pullfrog-play-"));
const tempDir = join(tempParent, "repo");
const originalCwd = process.cwd();
try {
setupTestRepo({ tempDir });
process.chdir(tempDir);
// run repo setup commands if provided (for pre-planting test state like symlinks).
// this runs AFTER clone but BEFORE the agent, simulating pre-existing repo content.
if (process.env.PULLFROG_TEST_REPO_SETUP) {
log.info("» running repo setup commands...");
execSync(process.env.PULLFROG_TEST_REPO_SETUP, { cwd: tempDir, stdio: "pipe" });
}
// set GITHUB_WORKSPACE to tempDir so main() doesn't try to chdir to the CI checkout path
process.env.GITHUB_WORKSPACE = tempDir;
// allow passing full Inputs object or just a prompt string
const inputs: Inputs =
typeof inputsOrPrompt === "string" ? { prompt: inputsOrPrompt } : inputsOrPrompt;
// set INPUT_* env vars for @actions/core.getInput()
for (const [key, value] of Object.entries(inputs)) {
if (value !== undefined && value !== null) {
process.env[`INPUT_${key.toUpperCase()}`] = String(value);
}
}
const result: AgentResult = await main();
process.chdir(originalCwd);
if (result.success) {
log.success("Action completed successfully");
return { success: true, output: result.output || undefined, error: undefined };
} else {
log.error(`Action failed: ${result.error || "Unknown error"}`);
return { success: false, error: result.error || undefined, output: undefined };
}
} catch (err) {
const errorMessage = (err as Error).message;
log.error(`Error: ${errorMessage}`);
return { success: false, error: errorMessage, output: undefined };
} finally {
// cleanup temp directory - use sudo rm because sandbox isolation may create
// files with different ownership that rmSync can't delete
process.chdir(originalCwd);
try {
execSync(`sudo rm -rf "${tempParent}"`, { stdio: "ignore" });
} catch {
// ignore - cleanup failure is not critical
}
}
}
const isDirectExecution = process.argv[1]
? import.meta.url === pathToFileURL(resolve(process.argv[1])).href
: false;
@@ -112,71 +33,40 @@ if (isDirectExecution) {
const args = arg({
"--help": Boolean,
"--raw": String,
"--local": Boolean,
"-h": "--help",
"-l": "--local",
});
if (args["--help"]) {
log.info(`
Usage: node play.ts [options]
Usage: node play.ts [--raw <input>]
Test the Pullfrog action with the inline playFixture.
Run the Pullfrog action against an inline fixture. Host-side, in-process.
For a GHA-like Linux container, use \`pnpm gha play.ts […]\` instead.
Options:
--raw [input] Use raw string as prompt, or JSON object as full fixture
--local, -l Run locally (default: runs in Docker)
-h, --help Show this help message
Environment:
PLAY_LOCAL=1 Same as --local
--raw <input> raw string used as the prompt, or JSON object as full fixture
-h, --help show this message
Examples:
node play.ts # Run inline playFixture
node play.ts --raw "Hello world" # Use raw string as prompt
node play.ts --raw '{"prompt":"Hello","timeout":"5s"}' # Use JSON fixture
node play.ts
node play.ts --raw "Hello world"
node play.ts --raw '{"prompt":"Hi","timeout":"5s"}'
`);
process.exit(0);
}
// default: run in Docker (unless --local, PLAY_LOCAL=1, or already inside Docker)
const useLocal = args["--local"] || process.env.PLAY_LOCAL === "1" || isInsideDocker;
if (!useLocal) {
const passArgs = process.argv
.slice(2)
.map((a) => `'${a.replace(/'/g, "'\\''")}'`)
.join(" ");
const nodeCmd = `node play.ts ${passArgs}`;
const volumeName = "pullfrog-action-node-modules";
const result = runInDocker({
actionDir: __dirname,
args: process.argv.slice(2),
nodeCmd,
volumeName,
envFilterMode: "passthrough",
onStart: () => log.info("» running in Docker container..."),
});
process.exit(result.status ?? 1);
}
if (args["--raw"]) {
const raw = args["--raw"];
// try to parse as JSON, otherwise treat as prompt string
let input: Inputs | string = raw;
try {
input = JSON.parse(raw) as Inputs;
} catch {
// not valid JSON, use as prompt string
// not valid JSON — treat as a literal prompt string.
}
const result = await run(input);
process.exit(result.success ? 0 : 1);
}
// no args - use inline playFixture
const result = await run(playFixture);
process.exit(result.success ? 0 : 1);
}
+5 -1
View File
@@ -38,8 +38,12 @@ export const ALWAYS_RUN_ALL: string[] = [
"action/utils/setup.ts",
"action/utils/lifecycle.ts",
"action/utils/install.ts",
"action/utils/docker.ts",
"action/utils/runFixture.ts",
"action/utils/globals.ts",
// GHA-like container plumbing (changes invalidate every test's environment)
"action/Dockerfile",
"action/docker-entrypoint.sh",
"action/gha.ts",
// MCP orchestrator (every test runs through it)
"action/mcp/server.ts",
"action/mcp/shared.ts",
+2 -33
View File
@@ -2,9 +2,6 @@ import { existsSync, readdirSync } from "node:fs";
import { dirname, join } from "node:path";
import { fileURLToPath } from "node:url";
import { config } from "dotenv";
import { runInDocker } from "../utils/docker.ts";
import { ensureGitHubToken } from "../utils/github.ts";
import { isInsideDocker } from "../utils/globals.ts";
import { killTrackedChildren, setSignalHandler } from "../utils/subprocess.ts";
import {
type AgentResult,
@@ -37,17 +34,16 @@ import {
* - "agnostic": runs with opencode only, excluded when filtering by agent
* - "adhoc": excluded from default runs, must be explicitly requested
*
* by default, runs in a Docker container for isolation.
* runs in-process. for the GHA-like Linux container, invoke via
* `pnpm gha test/run.ts […]` (the `runtest` package script does this).
*/
const __dirname = dirname(fileURLToPath(import.meta.url));
export const actionDir = join(__dirname, "..");
// load .env files
config({ path: join(actionDir, ".env") });
config({ path: join(actionDir, "..", ".env") });
const nodeModulesVolume = "pullfrog-action-test-node-modules";
const mcpPortBase = 49000;
let nextMcpPort = mcpPortBase;
@@ -57,25 +53,6 @@ function allocateMcpPort(): number {
return port;
}
function buildNodeCmd(args: string[]): string {
const passArgs = args.map((arg) => `'${arg.replace(/'/g, "'\\''")}'`).join(" ");
return `node test/run.ts ${passArgs}`;
}
// run the test runner inside docker
function runTestsInDocker(args: string[]): never {
const result = runInDocker({
actionDir,
args,
nodeCmd: buildNodeCmd(args),
volumeName: nodeModulesVolume,
envFilterMode: "allowlist",
onStart: () => console.log("» running tests in docker container...\n"),
});
process.exit(result.status ?? 1);
}
type TestInfo = {
name: string;
config: TestRunnerOptions;
@@ -393,14 +370,6 @@ async function runTestForAgent(ctx: RunContext): Promise<ValidationResult> {
async function main(): Promise<void> {
const args = process.argv.slice(2);
// run in Docker unless already inside
if (!isInsideDocker) {
// acquire token for docker if needed
await ensureGitHubToken();
runTestsInDocker(args);
}
// load all tests
const allTests = await loadAllTests();
const parsed = parseArgs(args, allTests);
-286
View File
@@ -1,286 +0,0 @@
/**
* shared docker utilities for running commands in containers.
* used by both play.ts (dev) and test/run.ts (CI).
*/
import { type SpawnSyncReturns, spawnSync } from "node:child_process";
import { existsSync } from "node:fs";
import { platform } from "node:os";
import { join } from "node:path";
export type DockerRunContext = {
actionDir: string;
args: string[];
platformName: NodeJS.Platform;
home: string | undefined;
env: NodeJS.ProcessEnv;
uid: number;
gid: number;
};
export type SshSetup = {
sshFlags: string[];
sshSetupCmd: string;
};
export type DockerRunArgsContext = {
ctx: DockerRunContext;
envFlags: string[];
nodeCmd: string;
sshSetup: SshSetup;
volumeName: string;
};
export type VolumeInitContext = {
actionDir: string;
volumeName: string;
uid: number;
gid: number;
};
export function buildDockerRunContext(ctx: {
actionDir: string;
args: string[];
}): DockerRunContext {
return {
actionDir: ctx.actionDir,
args: ctx.args,
platformName: platform(),
home: process.env.HOME,
env: process.env,
uid: process.getuid?.() ?? 1000,
gid: process.getgid?.() ?? 1000,
};
}
export function assertDockerSupported(ctx: DockerRunContext): void {
if (ctx.platformName === "win32") {
throw new Error("docker mode is not supported on native windows. use wsl2.");
}
}
function buildDarwinSshSetup(ctx: DockerRunContext): SshSetup {
const sshFlags: string[] = [];
const sshSetupCmd = "";
if (ctx.home) {
const knownHostsPath = join(ctx.home, ".ssh", "known_hosts");
if (existsSync(knownHostsPath)) {
sshFlags.push("-v", `${knownHostsPath}:/root/.ssh/known_hosts:ro`);
}
}
sshFlags.push(
"-v",
"/run/host-services/ssh-auth.sock:/run/host-services/ssh-auth.sock",
"-e",
"SSH_AUTH_SOCK=/run/host-services/ssh-auth.sock"
);
return { sshFlags, sshSetupCmd };
}
function buildLinuxSshSetup(ctx: DockerRunContext): SshSetup {
const sshFlags: string[] = [];
let sshSetupCmd = "";
if (ctx.home) {
const sshDir = join(ctx.home, ".ssh");
if (existsSync(sshDir)) {
sshFlags.push("-v", `${sshDir}:/tmp/.ssh-host:ro`);
sshSetupCmd =
"mkdir -p /tmp/home/.ssh && cp /tmp/.ssh-host/id_* /tmp/home/.ssh/ 2>/dev/null; chmod 600 /tmp/home/.ssh/id_* 2>/dev/null; " +
"ssh-keyscan -t ed25519,rsa github.com >> /tmp/home/.ssh/known_hosts 2>/dev/null; chmod 644 /tmp/home/.ssh/known_hosts; " +
"export GIT_SSH_COMMAND='ssh -i /tmp/home/.ssh/id_rsa -o UserKnownHostsFile=/tmp/home/.ssh/known_hosts -o StrictHostKeyChecking=no'; ";
}
}
return { sshFlags, sshSetupCmd };
}
export function buildSshSetup(ctx: DockerRunContext): SshSetup {
if (ctx.platformName === "darwin") {
return buildDarwinSshSetup(ctx);
}
return buildLinuxSshSetup(ctx);
}
// allowlist of env vars to pass through to the container for `pnpm runtest`.
// NOTE: `pnpm play` uses "passthrough" mode and passes ALL env vars.
// if your env var isn't working with `pnpm runtest`, add it here!
// see wiki/adversarial.md for documentation.
const testEnvAllowList = new Set([
"CI",
"GITHUB_ACTIONS",
"PULLFROG_DISABLE_SECURITY_INSTRUCTIONS", // disables security messaging for pentest
"GITHUB_TOKEN",
"GH_TOKEN",
"GITHUB_REPOSITORY",
"GITHUB_APP_ID",
"GITHUB_PRIVATE_KEY",
"OPENAI_API_KEY",
"ANTHROPIC_API_KEY",
"CLAUDE_CODE_OAUTH_TOKEN",
"GEMINI_API_KEY",
"GOOGLE_GENERATIVE_AI_API_KEY",
"XAI_API_KEY",
"DEEPSEEK_API_KEY",
"OPENROUTER_API_KEY",
"MOONSHOT_API_KEY",
"OPENCODE_API_KEY",
"PULLFROG_MODEL",
"LOG_LEVEL",
"DEBUG",
"NODE_ENV",
"PLAY_LOCAL",
"HOME",
"USER",
"SSH_AUTH_SOCK",
"ACTIONS_ID_TOKEN_REQUEST_URL",
"ACTIONS_ID_TOKEN_REQUEST_TOKEN",
"GITHUB_API_URL",
"GITHUB_SERVER_URL",
"GITHUB_GRAPHQL_URL",
"GITHUB_OUTPUT",
]);
export type EnvFilterMode = "allowlist" | "passthrough";
export function buildEnvFlags(ctx: DockerRunContext, mode: EnvFilterMode): string[] {
const envFlags: string[] = [];
const entries = Object.entries(ctx.env);
for (const entry of entries) {
const key = entry[0];
const value = entry[1];
if (value === undefined) continue;
if (mode === "passthrough" || testEnvAllowList.has(key)) {
envFlags.push("-e", `${key}=${value}`);
}
}
return envFlags;
}
export function initializeNodeModulesVolume(ctx: VolumeInitContext): void {
spawnSync(
"docker",
[
"run",
"--rm",
"-v",
`${ctx.volumeName}:/app/action/node_modules`,
"node:24",
"chown",
"-R",
`${ctx.uid}:${ctx.gid}`,
"/app/action/node_modules",
],
{ stdio: "ignore", cwd: ctx.actionDir }
);
}
/**
* escape a string for embedding in a double-quoted shell context.
* handles: backslash, double quote, dollar sign, backtick.
*/
function escapeForDoubleQuotes(str: string): string {
return str.replace(/\\/g, "\\\\").replace(/"/g, '\\"').replace(/\$/g, "\\$").replace(/`/g, "\\`");
}
export function buildDockerRunArgs(config: DockerRunArgsContext): string[] {
const args: string[] = [
"run",
"--rm",
"-t",
"--privileged", // needed for PID namespace isolation (unshare --pid)
"-v",
`${config.ctx.actionDir}:/app/action:cached`,
"-v",
`${config.volumeName}:/app/action/node_modules`,
"-w",
"/app/action",
];
args.push(...config.envFlags);
args.push(...config.sshSetup.sshFlags);
// escape nodeCmd for embedding in su -c "..." context
const escapedNodeCmd = escapeForDoubleQuotes(config.nodeCmd);
// run as root initially, setup sudo for a test user, then run tests as that user
// this simulates GHA environment where sudo is available
const setupCmd = [
// install sudo (node:24 is Debian-based) - check if already installed first
`which sudo > /dev/null 2>&1 || (apt-get update -qq && apt-get install -qq -y sudo > /dev/null 2>&1)`,
// remove any existing user/group with the same uid/gid (e.g. node:24 has "node" at 1000:1000)
`existing_user=$(getent passwd ${config.ctx.uid} | cut -d: -f1) && [ -n "$existing_user" ] && [ "$existing_user" != "testuser" ] && userdel "$existing_user" 2>/dev/null || true`,
`existing_group=$(getent group ${config.ctx.gid} | cut -d: -f1) && [ -n "$existing_group" ] && [ "$existing_group" != "testuser" ] && groupdel "$existing_group" 2>/dev/null || true`,
// create user matching host uid/gid for file permissions
`id testuser > /dev/null 2>&1 || (groupadd -g ${config.ctx.gid} testuser 2>/dev/null || true; useradd -u ${config.ctx.uid} -g ${config.ctx.gid} -m -s /bin/bash testuser 2>/dev/null || true)`,
// configure passwordless sudo (like GHA runners) - check if already configured
`grep -q "testuser ALL" /etc/sudoers 2>/dev/null || echo "testuser ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers`,
// setup directories
`mkdir -p /tmp/home/.config /tmp/home/.cache`,
`chown -R ${config.ctx.uid}:${config.ctx.gid} /tmp/home /app/action/node_modules`,
// install deps as user
`su testuser -c "corepack pnpm install --frozen-lockfile --ignore-scripts"`,
// run test as user - nodeCmd is escaped for double-quote context
`su testuser -c "${escapedNodeCmd}"`,
].join(" && ");
args.push(
"-e",
"COREPACK_ENABLE_DOWNLOAD_PROMPT=0",
"-e",
"HOME=/tmp/home",
"-e",
"TMPDIR=/tmp",
// always set CI=true in docker to enable sandbox - this is critical for security tests
// without this, PID namespace isolation is skipped and tests may pass vacuously
"-e",
"CI=true",
"node:24",
"bash",
"-c",
`${config.sshSetup.sshSetupCmd}${setupCmd}`
);
return args;
}
export type RunInDockerOptions = {
actionDir: string;
args: string[];
nodeCmd: string;
volumeName: string;
envFilterMode: EnvFilterMode;
onStart?: () => void;
};
export function runInDocker(options: RunInDockerOptions): SpawnSyncReturns<Buffer> {
const ctx = buildDockerRunContext({
actionDir: options.actionDir,
args: options.args,
});
assertDockerSupported(ctx);
const sshSetup = buildSshSetup(ctx);
const envFlags = buildEnvFlags(ctx, options.envFilterMode);
initializeNodeModulesVolume({
actionDir: ctx.actionDir,
volumeName: options.volumeName,
uid: ctx.uid,
gid: ctx.gid,
});
if (options.onStart) {
options.onStart();
}
return spawnSync(
"docker",
buildDockerRunArgs({
ctx,
envFlags,
nodeCmd: options.nodeCmd,
sshSetup,
volumeName: options.volumeName,
}),
{ stdio: "inherit", cwd: ctx.actionDir }
);
}
+76
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@@ -0,0 +1,76 @@
// in-process fixture runner used by `play.ts` (and any future host-side
// runner). does NOT know about Docker — that's `gha.ts`'s job. when run
// inside the GHA container, this is what executes after the entrypoint.
import { execSync } from "node:child_process";
import { mkdtemp } from "node:fs/promises";
import { devNull, tmpdir } from "node:os";
import { join } from "node:path";
import type { AgentResult } from "../agents/shared.ts";
import { type Inputs, main } from "../main.ts";
import { log } from "./cli.ts";
import { ensureGitHubToken } from "./github.ts";
import { setupTestRepo } from "./setup.ts";
export async function run(inputsOrPrompt: Inputs | string): Promise<AgentResult> {
await ensureGitHubToken();
// play.ts is a CI-emulator — isolate it from the developer's user- and
// system-scope gitconfig so checks like `validatePushDestination` see the
// raw stored remote URL instead of values mutated by `url.*.insteadOf`
// rewrites (a common SSH-auth convenience on dev boxes). CI runners have
// empty gitconfigs so this is a no-op there; locally it makes `pnpm play`
// and real runs produce identical git state. `os.devNull` canonicalizes
// the null device across Unix (`/dev/null`) and Windows (`\\.\nul`).
process.env.GIT_CONFIG_GLOBAL = devNull;
process.env.GIT_CONFIG_SYSTEM = devNull;
const tempParent = await mkdtemp(join(tmpdir(), "pullfrog-play-"));
const tempDir = join(tempParent, "repo");
const originalCwd = process.cwd();
try {
setupTestRepo({ tempDir });
process.chdir(tempDir);
// optional pre-agent setup (e.g. seed symlinks for adversarial fixtures).
if (process.env.PULLFROG_TEST_REPO_SETUP) {
log.info("» running repo setup commands...");
execSync(process.env.PULLFROG_TEST_REPO_SETUP, { cwd: tempDir, stdio: "pipe" });
}
// tell main() to use the cloned tempDir instead of the GHA workspace path.
process.env.GITHUB_WORKSPACE = tempDir;
const inputs: Inputs =
typeof inputsOrPrompt === "string" ? { prompt: inputsOrPrompt } : inputsOrPrompt;
for (const [key, value] of Object.entries(inputs)) {
if (value !== undefined && value !== null) {
process.env[`INPUT_${key.toUpperCase()}`] = String(value);
}
}
const result: AgentResult = await main();
process.chdir(originalCwd);
if (result.success) {
log.success("Action completed successfully");
return { success: true, output: result.output || undefined, error: undefined };
}
log.error(`Action failed: ${result.error || "Unknown error"}`);
return { success: false, error: result.error || undefined, output: undefined };
} catch (err) {
const errorMessage = (err as Error).message;
log.error(`Error: ${errorMessage}`);
return { success: false, error: errorMessage, output: undefined };
} finally {
process.chdir(originalCwd);
// sandbox isolation may create files with non-host ownership; rmSync
// can't always delete those, so escalate.
try {
execSync(`sudo rm -rf "${tempParent}"`, { stdio: "ignore" });
} catch {
// best-effort cleanup.
}
}
}