jason.woltjeandClaude Opus 5.5
dac20d8bf9
Round 1's patch on the new base, no change of its own (decision 127). Manifest 6b58085b, 8 paths; only the two bundle files' digests move, by row 90's lines. checkout.mjs stays out of RUNNER_FILES: it runs on the host. Gate 00:07:08Z to 00:10:09Z, seat 83, cli 125, bus 111, harness 67, tasks 89, every scripts/test-*.sh rc=0 with Docker off. Co-Authored-By: Claude Opus 5.5 <[email protected]>
881 lines
48 KiB
Diff
881 lines
48 KiB
Diff
diff --git a/packages/cli/README.md b/packages/cli/README.md
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index 3fb537fd..3ce6e9c3 100644
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--- a/packages/cli/README.md
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+++ b/packages/cli/README.md
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@@ -230,14 +230,20 @@ is `{"ok": true, "result": {run, instance, harness, model}}` or
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| its model names exactly one `launch.max` family | `unknown-model-family` |
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| that family has room; every running session counts, the PM's too | `capacity-full` |
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| the broker authorizes `role.launch` for the caller | the broker's code (`launch-revoked`, `decision-required`, …) |
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+| the workspace has a clone of each project, or the host can make one | `checkout-failed`, with the project id |
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| the bundle builds and the runner starts | `launch-failed` |
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Every refusal is an `action.refused` event (the broker's `refuse`, or its
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own refusal for the last broker check) and a line in the launch log. Then
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the launcher reads the instance's credential status from the broker
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-(metadata only), builds the bundle in the run directory, spawns the runner
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-in its bwrap sandbox (`packages/seat/README.md`, "The sandbox"), binds the
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-outer bwrap process's pid and start time, adds the
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+(metadata only) and makes sure the instance's workspace has a clone of each
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+project in the business file (`packages/seat/README.md`, "The project
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+clones"). It makes a missing clone and fast-forwards a clean one. A clone
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+it leaves alone is a `checkout-kept` line in the launch log with the
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+project and the reason, and the launch goes on. The bundle's prompt names
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+each clone's path. Then the launcher builds the bundle in the run
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+directory, spawns the runner in its bwrap sandbox (`packages/seat/README.md`,
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+"The sandbox"), binds the outer bwrap process's pid and start time, adds the
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session to `sessions.json`, and writes the capability as one line on the
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runner's stdin. The capability is never on disk, in argv or in the
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environment. When the runner exits, the launcher sends `endLaunch` with the
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@@ -270,7 +276,8 @@ and, for Claude Code, `--version` from the binary sessions run:
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On disk, under the data root: `launches/<business>/<run>/` (0700) is the run
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directory; `launches/<business>.jsonl` (0600, append-only) logs every launch,
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refusal and end; `workspaces/<business>/<instance>/` (0700) is kept across
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-launches; `bus-host/sessions.json` (0600) lists the running sessions.
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+launches and holds the instance's project clones; `bus-host/sessions.json`
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+(0600) lists the running sessions.
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When the host closes, the launcher stops taking requests and drops every
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open `launch.sock` connection, so a client that never ends its side can't
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diff --git a/packages/cli/src/launcher.mjs b/packages/cli/src/launcher.mjs
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index 084264f5..ab850395 100644
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--- a/packages/cli/src/launcher.mjs
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+++ b/packages/cli/src/launcher.mjs
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@@ -24,7 +24,10 @@
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//
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// Steps 2 to 8 refuse through the broker's refuse(), so every refusal is an
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// action.refused event; step 9's refusals the broker records itself. Then
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-// the host builds the bundle, spawns the runner in its sandbox
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+// the host makes sure the workspace has a clone of each project
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+// (packages/seat/src/checkout.mjs): one it can't make refuses
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+// checkout-failed, and one it leaves alone is a checkout-kept record in the
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+// launch log. Then it builds the bundle, spawns the runner in its sandbox
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// (packages/seat/src/sandbox.mjs) with the paths it may see, binds the run's
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// process identity (the outer bwrap pid) and writes the new capability on
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// the runner's stdin. When the runner exits, the host ends the launch.
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@@ -57,6 +60,7 @@ import {
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writeSessionFile,
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} from "../../seat/src/session.mjs";
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import { BWRAP, sandboxProblem } from "../../seat/src/sandbox.mjs";
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+import { CheckoutError, ensureCheckouts } from "../../seat/src/checkout.mjs";
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import { cmdlineOf, startTimeOf } from "../../seat/src/proc.mjs";
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import { REPO, rolesDir } from "./config.mjs";
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import { CliError } from "./errors.mjs";
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@@ -169,9 +173,22 @@ export function createLauncher({
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// Bundle, spawn, bind, register, hand over the capability.
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async function start({ instance, launchedBy, resolved, model, fam }) {
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const credentials = await host.op({ op: "credentialStatus", business: b.id, role: instance });
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- const { run, runDir } = newRun(dataRoot, b.id);
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+ // The clones come before the run, so one that can't be made leaves no
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+ // run behind. The host's git treats each clone as hostile, and its
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+ // checks hold only while no session writes the workspace: a workspace
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+ // is one instance's, check() refused instance-running, and launches are
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+ // serialized, so none does.
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const workspace = workspaceDir(dataRoot, b.id, instance);
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mkdirSync(workspace, { recursive: true, mode: 0o700 });
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+ let checkouts;
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+ try {
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+ checkouts = await ensureCheckouts({ workspace, projects: b.projects, env });
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+ } catch (e) {
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+ if (e instanceof CheckoutError) throw new Refusal("checkout-failed", `${e.project}: ${e.message}`);
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+ throw e;
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+ }
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+ for (const c of checkouts) if (c.outcome === "kept") record({ event: "checkout-kept", instance, project: c.project, reason: c.reason });
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+ const { run, runDir } = newRun(dataRoot, b.id);
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const sessionDir = join(runDir, "session");
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mkdirSync(sessionDir, { mode: 0o700 });
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const toolSocket = join(runDir, "tools.sock");
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@@ -184,7 +201,7 @@ export function createLauncher({
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arbiter: Object.values(b.arbiters).includes(instance),
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tracker,
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credentials,
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- session: { run, launchedBy, workspace, toolSocket, turnMarker },
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+ session: { run, launchedBy, workspace, toolSocket, turnMarker, checkouts },
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piVersion: v.pi,
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claudeVersion: v.claude,
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});
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diff --git a/packages/cli/tests/launcher.test.mjs b/packages/cli/tests/launcher.test.mjs
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index f8013726..d86dbb64 100644
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--- a/packages/cli/tests/launcher.test.mjs
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+++ b/packages/cli/tests/launcher.test.mjs
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@@ -9,12 +9,13 @@ import { spawn, spawnSync } from "node:child_process";
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import { once } from "node:events";
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import { createInterface } from "node:readline";
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import { connect } from "node:net";
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-import { chmodSync, existsSync, mkdirSync, readFileSync, readdirSync, rmSync, statSync, writeFileSync } from "node:fs";
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+import { chmodSync, existsSync, mkdirSync, readFileSync, readdirSync, renameSync, rmSync, statSync, writeFileSync } from "node:fs";
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import { join } from "node:path";
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import { fileURLToPath } from "node:url";
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import { Client } from "../../bus/src/client.mjs";
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-import { launchLogFile, launchSocketPath, readSessions, Registry, SESSION_CREDENTIALS, sessionsFile } from "../../seat/src/session.mjs";
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+import { launchLogFile, launchSocketPath, readSessions, Registry, SESSION_CREDENTIALS, sessionsFile, workspaceDir } from "../../seat/src/session.mjs";
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import { sandboxProblem } from "../../seat/src/sandbox.mjs";
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+import { gitEnv } from "../../seat/src/checkout.mjs";
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import { bootConfig, loadSystem } from "../src/config.mjs";
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import { startHost, startTimeOf } from "../src/host.mjs";
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import { claudeVersion, createLauncher } from "../src/launcher.mjs";
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@@ -44,6 +45,19 @@ async function until(fn, ms = 15000) {
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throw new Error("timed out waiting");
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}
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+// git in a test repository, with nothing of the shell's git config.
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+function gitIn(cwd, ...args) {
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+ const r = spawnSync("git", ["-c", "user.name=test", "-c", "[email protected]", "-C", cwd, ...args], { env: gitEnv(), encoding: "utf8" });
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+ assert.equal(r.status, 0, r.stderr);
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+ return r.stdout.trim();
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+}
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+function commit(dir, text) {
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+ writeFileSync(join(dir, "file.txt"), `${text}\n`);
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+ gitIn(dir, "add", "file.txt");
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+ gitIn(dir, "commit", "-q", "-m", text);
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+ return gitIn(dir, "rev-parse", "HEAD");
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+}
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+
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// A config and data root with the fake adapter; setup() starts a host on it.
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// The session credential is a stand-in, and the fake adapter never uses it.
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// Every credential variable of the shell running the tests is dropped.
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@@ -53,6 +67,10 @@ function prepare(t, more = (doc) => doc) {
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for (const k of SESSION_CREDENTIALS.flat()) delete f.env[k];
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f.env.CLAUDE_CODE_OAUTH_TOKEN = "stand-in";
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mkdirSync(f.dataRoot, { mode: 0o700 });
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+ // The project root is a repository on main, so each launch can clone it.
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+ const project = f.doc.projects.stack.root;
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+ gitIn(project, "init", "-q", "-b", "main");
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+ commit(project, "one");
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const adapter = join(root, "adapter.sh");
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writeFileSync(adapter, `exec '${process.execPath}' '${FAKE}'\n`, { mode: 0o644 });
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return { root, f, adapter };
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@@ -244,6 +262,76 @@ test("the PM launches a coder through its launch tool; the coder answers; refusa
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assert.ok(readSessions(f.dataRoot).some((s) => s.run === pm.run));
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});
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+// Row 91 (#1585): the project clone in each workspace.
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+test("each launch makes sure the workspace has a clone of the project: cloned, fast-forwarded, or kept and logged", { skip, timeout: 60000 }, async (t) => {
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+ const given = prepare(t);
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+ const project = given.f.doc.projects.stack.root;
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+ const clone = join(workspaceDir(given.f.dataRoot, "acme", "pm"), "stack");
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+ const prompt = (run) => readFileSync(join(given.f.dataRoot, "launches", "acme", run, "bundle", "prompt.md"), "utf8");
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+ const kept = () => log(given.f).filter((e) => e.event === "checkout-kept");
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+
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+ // The first launch clones the root's branch, with the root as origin.
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+ const first = await setup(t, undefined, given);
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+ const one = gitIn(project, "rev-parse", "HEAD");
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+ const pm1 = await first.launcher.launchPm();
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+ assert.equal(gitIn(clone, "rev-parse", "HEAD"), one);
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+ assert.equal(gitIn(clone, "symbolic-ref", "--short", "HEAD"), "main");
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+ assert.equal(gitIn(clone, "config", "--get-all", "remote.origin.url"), project);
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+ assert.ok(prompt(pm1.run).includes(`- Project clones: stack at ${clone}, on branch main. `));
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+
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+ // While the PM runs, a second launch is refused before the host runs git
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+ // in its workspace: the root moved on, and the clone didn't.
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+ const two = commit(project, "two");
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+ await assert.rejects(first.launcher.launchPm(), /PM launch refused: instance-running/);
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+ assert.equal(gitIn(clone, "rev-parse", "HEAD"), one);
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+ await first.client.call("role.release"); // the test's own cto claim, so the next host's can claim again
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+ assert.equal(await first.close(), 0);
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+
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+ // The next launch fast-forwards the clean clone.
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+ const second = await setup(t, undefined, given);
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+ const pm2 = await second.launcher.launchPm();
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+ assert.equal(gitIn(clone, "rev-parse", "HEAD"), two);
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+ assert.ok(prompt(pm2.run).includes(`- Project clones: stack at ${clone}, on branch main. `));
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+ assert.deepEqual(kept(), []);
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+ await second.client.call("role.release");
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+ assert.equal(await second.close(), 0);
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+
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+ // A clone with the session's own work in it is kept, and the log says why.
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+ writeFileSync(join(clone, "notes.txt"), "mine\n");
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+ const three = commit(project, "three");
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+ const third = await setup(t, undefined, given);
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+ const pm3 = await third.launcher.launchPm();
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+ assert.equal(gitIn(clone, "rev-parse", "HEAD"), two);
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+ assert.equal(readFileSync(join(clone, "notes.txt"), "utf8"), "mine\n");
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+ assert.deepEqual(kept().map(({ instance, project: p, reason }) => ({ instance, project: p, reason })), [{ instance: "pm", project: "stack", reason: "dirty" }]);
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+ assert.ok(prompt(pm3.run).includes(`- Project clones: stack at ${clone}, not updated at this launch (dirty). `));
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+ assert.equal(await third.close(), 0);
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+
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+ // The root was never written: its branch, head and tree are the test's.
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+ assert.equal(gitIn(project, "rev-parse", "HEAD"), three);
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+ assert.equal(gitIn(project, "for-each-ref", "--format=%(refname)"), "refs/heads/main");
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+ assert.equal(gitIn(project, "status", "--porcelain"), "");
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+});
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+
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+test("a project clone that can't be made refuses checkout-failed, from --pm and from a session, with no run and no clone left", { skip, timeout: 30000 }, async (t) => {
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+ const given = prepare(t);
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+ renameSync(join(given.f.doc.projects.stack.root, ".git"), join(given.root, "away.git"));
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+ const { f, launcher, host } = await setup(t, undefined, given);
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+ await assert.rejects(launcher.launchPm(), (e) => e.exitCode === 3 && /^PM launch refused: checkout-failed \(stack: the root .* can't be read: /.test(e.message));
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+
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+ // A pm capability bound to this process asks for the coder.
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+ const pm = await host.bindLaunch({ business: "acme", role: "pm", run: "pm-test", harness: "pi", pid: process.pid, startTime: startTimeOf(process.pid) });
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+ await new Client({ path: host.path, cap: pm.cap }).call("role.claim");
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+ assert.deepEqual(await launcher.fromSession(pm.cap, "coder"), { ok: false, error: "checkout-failed" });
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+
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+ const entries = log(f);
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+ assert.deepEqual(entries.map((e) => [e.event, e.instance, e.code]), [["refused", "pm", "checkout-failed"], ["refused", "coder", "checkout-failed"]]);
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+ for (const e of entries) assert.match(e.why, /^stack: the root /);
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+ assert.deepEqual(readSessions(f.dataRoot), []);
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+ assert.deepEqual(readdirSync(join(f.dataRoot, "launches")), ["acme.jsonl"], "no run was made");
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+ for (const instance of ["pm", "coder"]) assert.deepEqual(readdirSync(workspaceDir(f.dataRoot, "acme", instance)), [], `${instance}: no clone, no temp`);
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+});
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+
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test("a runner that stops at once ends its launch with the runner's reason", { skip, timeout: 30000 }, async (t) => {
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// pm's tracker token has expired: the runner's founder-credential stop
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// exits 20 before role.claim, and the host records founder-credentials.
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diff --git a/packages/harness/src/bundle.mjs b/packages/harness/src/bundle.mjs
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index 63aa4d04..678c8749 100644
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--- a/packages/harness/src/bundle.mjs
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+++ b/packages/harness/src/bundle.mjs
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@@ -55,6 +55,13 @@ export function sessionModel(resolved) {
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return { harness, provider: v["execution.provider"] ?? null, model, thinking: v.thinking ?? null };
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}
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+// Row 91 (#1585): the project clones the host made or kept in the workspace.
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+function checkoutLines(checkouts) {
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+ if (!checkouts.length) return [];
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+ const each = checkouts.map((c) => (c.outcome === "kept" ? `${c.project} at ${c.path}, not updated at this launch (${c.reason})` : `${c.project} at ${c.path}, on branch ${c.branch}`));
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+ return [`- Project clones: ${each.join("; ")}. Each is a git clone of the project. The host fetches from its origin at each launch; the origin is outside this sandbox.`];
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+}
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+
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function prompt({ contract, resolved, session, tools, untyped }) {
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const lines = [
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contract.trimEnd(),
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@@ -64,6 +71,7 @@ function prompt({ contract, resolved, session, tools, untyped }) {
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`- Business: ${resolved.business}. Role instance: ${resolved.instance} (definition ${resolved.definition}). Run: ${session.run}.`,
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`- Launched by: ${session.launchedBy}. Harness: ${session.harness}, model ${session.model}.`,
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`- Workspace: ${session.workspace}. File tools work inside it only.`,
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+ ...checkoutLines(session.checkouts ?? []),
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// Row 89 (#1583): the names the harness gives its built-ins, as the manifest lists them.
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`- Built-in tools: ${(session.harness === "pi" ? resolved.limits.tools : claudeBuiltins({ tools: resolved.limits.tools })).join(", ") || "none"}.`,
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`- Bus tools: ${tools.map((t) => t.name).join(", ")}. The broker decides every call; a refusal names its reason.`,
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@@ -83,7 +91,9 @@ function prompt({ contract, resolved, session, tools, untyped }) {
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// arbiter true when the business names this instance as an arbiter
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// tracker true when the broker has task verbs for the business
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// credentials the broker's credentialStatus(...) for the instance (metadata only)
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-// session { run, launchedBy, workspace, toolSocket, turnMarker }
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+// session { run, launchedBy, workspace, toolSocket, turnMarker, checkouts }
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+// checkouts is ensureCheckouts(...) output (packages/seat/src/checkout.mjs),
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+// named in the prompt; none when absent
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// piVersion the pinned pi version, for the manifest
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// claudeVersion the host's `claude --version`, for the manifest
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// Returns { manifest, files } with absolute paths.
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diff --git a/packages/harness/tests/bundle.test.mjs b/packages/harness/tests/bundle.test.mjs
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index aae81c52..a343200f 100644
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--- a/packages/harness/tests/bundle.test.mjs
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+++ b/packages/harness/tests/bundle.test.mjs
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@@ -103,6 +103,23 @@ test("the prompt's built-in tools line is the harness's own names, as the manife
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}
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});
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+// Row 91 (#1585): the prompt names each project clone, and why a kept one wasn't updated.
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+test("the prompt names the project clones in the workspace, and none when there are none", (t) => {
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+ const line = (b) => readFileSync(b.files.prompt, "utf8").split("\n").filter((l) => l.startsWith("- Project clones: "));
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+ const plain = build(t, resolvedFor(t, "pm"));
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+ assert.deepEqual(line(plain), []);
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+ const dir = scratch(t);
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+ const session = (checkouts) => ({ run: "run-1", launchedBy: "pm", workspace: join(dir, "ws"), toolSocket: join(dir, "tools.sock"), turnMarker: join(dir, "turn.done"), checkouts });
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+ const two = build(t, resolvedFor(t, "pm"), { session: session([
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+ { project: "stack", path: join(dir, "ws", "stack"), outcome: "updated", branch: "main" },
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+ { project: "site", path: join(dir, "ws", "site"), outcome: "kept", reason: "dirty" },
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+ ]) });
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+ assert.deepEqual(line(two), [`- Project clones: stack at ${join(dir, "ws", "stack")}, on branch main; site at ${join(dir, "ws", "site")}, not updated at this launch (dirty). Each is a git clone of the project. The host fetches from its origin at each launch; the origin is outside this sandbox.`]);
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+ const prompt = readFileSync(two.files.prompt, "utf8");
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+ assert.ok(prompt.indexOf("- Workspace: ") < prompt.indexOf("- Project clones: "));
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+ assert.deepEqual(line(build(t, resolvedFor(t, "pm"), { session: session([]) })), []);
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+});
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+
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test("a bundle is written once: an existing file refuses", (t) => {
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const dir = scratch(t);
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mkdirSync(join(dir, "bundle"));
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diff --git a/packages/seat/README.md b/packages/seat/README.md
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index 836a356f..715ca179 100644
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--- a/packages/seat/README.md
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+++ b/packages/seat/README.md
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@@ -233,6 +233,57 @@ The sandbox doesn't confine the network, abstract Unix sockets, or the
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user: a session runs as the host's UID. `packages/harness/README.md`
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("Limits") says what that leaves open.
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+### The project clones (#1585)
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+
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+An instance's workspace holds one git clone per project in the business
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+file, at `<workspace>/<project id>/`. The launcher calls `ensureCheckouts`
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+(`src/checkout.mjs`) at each launch, before it builds the bundle, so a
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+session starts in the project and not beside it. The host runs git here,
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+outside the sandbox:
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+
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+| The clone | What the host does | Outcome |
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+|---|---|---|
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+| doesn't exist | `git clone --no-hardlinks --template=` of the root, at the branch the root has checked out, into `.<project>.clone-<hex>` beside it, then renamed into place | `cloned` |
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+| is clean, on the root's branch | fetches its origin and fast-forwards | `updated`, or `current` when nothing moved |
|
|
+| anything else | nothing | `kept`, with a reason |
|
|
+
|
|
+The host never resets, cleans, deletes or force-updates a clone, and never
|
|
+writes the root. A clone's origin is the root's path; no credential or
|
|
+forge remote goes into it, and the root's own remotes and config don't
|
|
+reach it.
|
|
+
|
|
+A kept clone's reason is one of:
|
|
+
|
|
+| Reason | The clone |
|
|
+|---|---|
|
|
+| `not-a-clone` | isn't a directory with a `.git` directory; or under `.git` there is a symlink, a special file, a file with a second hard link, a `commondir` or an `objects/info/alternates` |
|
|
+| `hooks-present` | has a file in `.git/hooks` |
|
|
+| `config-changed` | has a `.git/config` that isn't a regular file of at most 64 KiB, or that holds a key a clone doesn't write: anything beyond `core.repositoryformatversion`, `core.filemode`, `core.bare`, `core.logallrefupdates`, the origin's one URL (the root) and fetch line, and `branch.<name>.remote` (`origin`) and `.merge` |
|
|
+| `root-unreadable`, `root-detached` | is fine, but the root can't be read or has no branch checked out |
|
|
+| `other-branch` | is on another branch, or on none |
|
|
+| `dirty` | has a change, staged or not, or an untracked file |
|
|
+| `status-failed`, `fetch-failed` | made `git status` or the fetch fail |
|
|
+| `not-fast-forward` | has commits the root's branch doesn't |
|
|
+
|
|
+The session can write its clone, so the host treats every clone as
|
|
+hostile. The checks above run before any git command in an existing clone,
|
|
+and git doesn't run in a clone that fails one. Every git call also runs
|
|
+with only the host's `PATH`, `HOME` at a directory that doesn't exist, no
|
|
+system or global config, hooks at `/dev/null`, `core.fsmonitor` off and
|
|
+only the `file` transport. The root is read with `GIT_CEILING_DIRECTORIES`
|
|
+at its parent, so a root that isn't a repository is never taken for the
|
|
+one above it. Each git call is killed after 100 s.
|
|
+
|
|
+The checks hold only while nothing else writes the clone. Each workspace
|
|
+is one instance's, and the launcher refuses `instance-running` before it
|
|
+gets here, so no session of that instance runs while the host checks and
|
|
+updates its clone.
|
|
+
|
|
+A missing clone that can't be made (the root can't be read, has no branch,
|
|
+or the clone fails) rejects with a `CheckoutError` naming the project, and
|
|
+the temp directory is removed. The launcher refuses the launch with
|
|
+`checkout-failed` (`packages/cli/README.md`, "Sessions").
|
|
+
|
|
## Exit codes
|
|
|
|
`launch` exits with the launch script's own code once the script runs.
|
|
diff --git a/packages/seat/src/checkout.mjs b/packages/seat/src/checkout.mjs
|
|
new file mode 100644
|
|
index 00000000..a6442977
|
|
--- /dev/null
|
|
+++ b/packages/seat/src/checkout.mjs
|
|
@@ -0,0 +1,227 @@
|
|
+// The project checkouts in a role workspace (#1585). At every launch the
|
|
+// bus host makes sure each project of the business file has a git clone at
|
|
+// `<workspace>/<project id>/`, before it builds the bundle. The host runs
|
|
+// git here, outside the session's sandbox:
|
|
+//
|
|
+// no clone yet `git clone --no-hardlinks` of the project's root, at
|
|
+// the branch the root has checked out, into a temp
|
|
+// directory beside it and then renamed into place; a
|
|
+// clone that fails is removed and refuses the launch
|
|
+// a clean clone on fetched from its origin and fast-forwarded
|
|
+// the root's branch
|
|
+// anything else left exactly as it is, with the reason
|
|
+//
|
|
+// The host never resets, cleans, deletes or force-updates a clone, and
|
|
+// never writes the root. A clone's origin is the root's path; no credential
|
|
+// or forge remote goes into it.
|
|
+//
|
|
+// The session can write its clone, so the host treats every clone as
|
|
+// hostile. A git config key, a hook or a redirected .git would otherwise
|
|
+// run a command or write a file outside the sandbox when the host runs git
|
|
+// there. So every git call gets an environment without the system and
|
|
+// global config, hooks pointed at /dev/null, fsmonitor off and only local
|
|
+// transports. And before git runs in an existing clone, the host checks
|
|
+// that the clone and its .git are real directories, that nothing under
|
|
+// .git is a symlink, a special file or a file with a second hard link,
|
|
+// that no commondir or alternates file sends git elsewhere, that
|
|
+// .git/hooks is empty, and that .git/config is a small regular file
|
|
+// holding only what a clone writes (allowed() below). A clone that fails a
|
|
+// check is kept, and git doesn't run in it.
|
|
+//
|
|
+// The checks hold only while nothing else writes the clone. The launcher
|
|
+// calls this for an instance only when no session of that instance runs
|
|
+// (its instance-running refusal), and each workspace is one instance's.
|
|
+
|
|
+import { spawn } from "node:child_process";
|
|
+import { randomBytes } from "node:crypto";
|
|
+import { lstatSync, readdirSync, renameSync, rmSync } from "node:fs";
|
|
+import { dirname, join } from "node:path";
|
|
+
|
|
+export const GIT_TIMEOUT_MS = 100_000;
|
|
+// A clone's config is a few hundred bytes, a little more per branch.
|
|
+export const CONFIG_MAX_BYTES = 64 * 1024;
|
|
+
|
|
+export class CheckoutError extends Error {
|
|
+ constructor(project, message) {
|
|
+ super(message);
|
|
+ this.project = project;
|
|
+ }
|
|
+}
|
|
+
|
|
+// Ahead of every git subcommand. Command-line config wins over any file.
|
|
+const SAFE = [
|
|
+ "-c", "core.hooksPath=/dev/null",
|
|
+ "-c", "core.fsmonitor=false",
|
|
+ "-c", "protocol.allow=never",
|
|
+ "-c", "protocol.file.allow=always",
|
|
+];
|
|
+
|
|
+// The environment git runs with: the host's PATH and nothing else of it.
|
|
+// HOME doesn't exist, so no user file (attributes, ignore) is read either.
|
|
+export function gitEnv(env = process.env) {
|
|
+ return {
|
|
+ PATH: env.PATH ?? "/usr/bin:/bin",
|
|
+ HOME: "/nonexistent",
|
|
+ GIT_CONFIG_NOSYSTEM: "1",
|
|
+ GIT_CONFIG_GLOBAL: "/dev/null",
|
|
+ GIT_TERMINAL_PROMPT: "0",
|
|
+ GIT_MERGE_AUTOEDIT: "no",
|
|
+ LC_ALL: "C",
|
|
+ };
|
|
+}
|
|
+
|
|
+// Async, so a long clone doesn't hold up the rest of the bus host.
|
|
+function git(args, env, extra = {}) {
|
|
+ return new Promise((resolve) => {
|
|
+ const child = spawn("git", [...SAFE, ...args], { env: { ...gitEnv(env), ...extra }, timeout: GIT_TIMEOUT_MS, killSignal: "SIGKILL", stdio: ["ignore", "pipe", "pipe"] });
|
|
+ let out = "";
|
|
+ let err = "";
|
|
+ child.stdout.setEncoding("utf8").on("data", (d) => (out += d));
|
|
+ child.stderr.setEncoding("utf8").on("data", (d) => (err += d));
|
|
+ // A git that can't start may not emit close, so error settles it too.
|
|
+ child.on("error", (e) => resolve({ ok: false, out, why: e.code ?? e.message }));
|
|
+ child.on("close", (code, signal) => resolve({ ok: code === 0, out, why: signal ? `killed by ${signal}` : err.trim().split("\n").pop() || `exit ${code}` }));
|
|
+ });
|
|
+}
|
|
+
|
|
+const inClone = (dest) => [`--git-dir=${join(dest, ".git")}`, `--work-tree=${dest}`];
|
|
+
|
|
+// The keys `git clone` writes, and what each may hold. branch.<name>.remote
|
|
+// and .merge are the ones `git checkout -b`, `git branch -u` and the like
|
|
+// add. Every other key keeps the clone.
|
|
+const FETCH = "+refs/heads/*:refs/remotes/origin/*";
|
|
+function allowed(key, value, root) {
|
|
+ const branch = /^branch\..+\.(remote|merge)$/.exec(key);
|
|
+ if (branch) return branch[1] === "remote" ? value === "origin" : /^refs\/heads\/./.test(value ?? "");
|
|
+ switch (key) {
|
|
+ case "core.repositoryformatversion": return value === "0";
|
|
+ case "core.filemode": return value === "true" || value === "false";
|
|
+ case "core.bare": return value === "false";
|
|
+ case "core.logallrefupdates": return value === "true";
|
|
+ case "remote.origin.url": return value === root;
|
|
+ case "remote.origin.fetch": return value === FETCH;
|
|
+ default: return false;
|
|
+ }
|
|
+}
|
|
+
|
|
+// Why the clone at `dest` isn't safe for the host to run git in, or null.
|
|
+async function unsafe(dest, root, env) {
|
|
+ const isDir = (p) => {
|
|
+ try {
|
|
+ return lstatSync(p).isDirectory();
|
|
+ } catch {
|
|
+ return false;
|
|
+ }
|
|
+ };
|
|
+ if (!isDir(dest) || !isDir(join(dest, ".git"))) return "not-a-clone";
|
|
+ // A second hard link would let a host write through to a file outside.
|
|
+ const walk = (dir) => {
|
|
+ for (const name of readdirSync(dir)) {
|
|
+ const st = lstatSync(join(dir, name));
|
|
+ if (st.isDirectory()) {
|
|
+ if (walk(join(dir, name))) return true;
|
|
+ } else if (!st.isFile() || st.nlink !== 1) return true;
|
|
+ }
|
|
+ return false;
|
|
+ };
|
|
+ try {
|
|
+ if (walk(join(dest, ".git"))) return "not-a-clone";
|
|
+ } catch {
|
|
+ return "not-a-clone";
|
|
+ }
|
|
+ for (const f of ["commondir", join("objects", "info", "alternates")]) {
|
|
+ try {
|
|
+ lstatSync(join(dest, ".git", f));
|
|
+ return "not-a-clone";
|
|
+ } catch {}
|
|
+ }
|
|
+ try {
|
|
+ if (readdirSync(join(dest, ".git", "hooks")).length > 0) return "hooks-present";
|
|
+ } catch (e) {
|
|
+ if (e.code !== "ENOENT") return "not-a-clone";
|
|
+ }
|
|
+ try {
|
|
+ const st = lstatSync(join(dest, ".git", "config"));
|
|
+ if (!st.isFile() || st.size > CONFIG_MAX_BYTES) return "config-changed";
|
|
+ } catch {
|
|
+ return "config-changed";
|
|
+ }
|
|
+ const list = await git(["config", "--file", join(dest, ".git", "config"), "--list", "--null"], env);
|
|
+ if (!list.ok) return "config-changed";
|
|
+ const seen = new Set();
|
|
+ for (const entry of list.out.split("\0").filter(Boolean)) {
|
|
+ const nl = entry.indexOf("\n");
|
|
+ const [key, value] = nl < 0 ? [entry, null] : [entry.slice(0, nl), entry.slice(nl + 1)];
|
|
+ if (seen.has(key) || !allowed(key, value, root)) return "config-changed";
|
|
+ seen.add(key);
|
|
+ }
|
|
+ if (!seen.has("remote.origin.url")) return "config-changed";
|
|
+ return null;
|
|
+}
|
|
+
|
|
+// The branch the root has checked out, null when it has none, or an error.
|
|
+// The ceiling stops git finding a repository above a root that isn't one.
|
|
+async function rootBranch(root, env) {
|
|
+ const ceiling = { GIT_CEILING_DIRECTORIES: dirname(root) };
|
|
+ const r = await git(["-C", root, "symbolic-ref", "-q", "--short", "HEAD"], env, ceiling);
|
|
+ if (r.ok) return { branch: r.out.trim() };
|
|
+ // symbolic-ref -q exits 1 with no output on a detached HEAD.
|
|
+ const head = await git(["-C", root, "rev-parse", "--verify", "-q", "HEAD"], env, ceiling);
|
|
+ return head.ok ? { branch: null } : { error: r.why };
|
|
+}
|
|
+
|
|
+async function clone(project, root, workspace, dest, env) {
|
|
+ const at = await rootBranch(root, env);
|
|
+ if (at.error) throw new CheckoutError(project, `the root ${root} can't be read: ${at.error}`);
|
|
+ if (!at.branch) throw new CheckoutError(project, `the root ${root} has no branch checked out`);
|
|
+ // A project id never starts with a dot, so the temp name is no project's.
|
|
+ const tmp = join(workspace, `.${project}.clone-${randomBytes(4).toString("hex")}`);
|
|
+ try {
|
|
+ const r = await git(["clone", "-q", "--no-hardlinks", "--template=", "--branch", at.branch, "--", root, tmp], env);
|
|
+ if (!r.ok) throw new CheckoutError(project, `git clone of ${root} failed: ${r.why}`);
|
|
+ renameSync(tmp, dest);
|
|
+ } catch (e) {
|
|
+ rmSync(tmp, { recursive: true, force: true });
|
|
+ if (e instanceof CheckoutError) throw e;
|
|
+ throw new CheckoutError(project, `the clone of ${root} couldn't be put in place: ${e.message}`);
|
|
+ }
|
|
+ return { outcome: "cloned", branch: at.branch };
|
|
+}
|
|
+
|
|
+async function update(root, dest, env) {
|
|
+ const problem = await unsafe(dest, root, env);
|
|
+ if (problem) return { outcome: "kept", reason: problem };
|
|
+ const at = await rootBranch(root, env);
|
|
+ if (at.error) return { outcome: "kept", reason: "root-unreadable" };
|
|
+ if (!at.branch) return { outcome: "kept", reason: "root-detached" };
|
|
+ const head = await git([...inClone(dest), "symbolic-ref", "-q", "--short", "HEAD"], env);
|
|
+ if (!head.ok || head.out.trim() !== at.branch) return { outcome: "kept", reason: "other-branch" };
|
|
+ const status = await git(["--no-optional-locks", ...inClone(dest), "status", "--porcelain=v1", "-z", "--untracked-files=all", "--ignore-submodules=none"], env);
|
|
+ if (!status.ok) return { outcome: "kept", reason: "status-failed" };
|
|
+ if (status.out !== "") return { outcome: "kept", reason: "dirty" };
|
|
+ const before = (await git([...inClone(dest), "rev-parse", "HEAD"], env)).out.trim();
|
|
+ if (!(await git([...inClone(dest), "fetch", "-q", "--no-tags", "--no-recurse-submodules", "origin"], env)).ok) return { outcome: "kept", reason: "fetch-failed" };
|
|
+ if (!(await git([...inClone(dest), "merge", "-q", "--ff-only", "--no-edit", `refs/remotes/origin/${at.branch}`], env)).ok) return { outcome: "kept", reason: "not-fast-forward" };
|
|
+ const after = (await git([...inClone(dest), "rev-parse", "HEAD"], env)).out.trim();
|
|
+ return { outcome: before === after ? "current" : "updated", branch: at.branch };
|
|
+}
|
|
+
|
|
+// await ensureCheckouts({ workspace, projects, env }) for the business file's
|
|
+// projects ({ <id>: { root } }). Returns one { project, path, outcome,
|
|
+// reason?, branch? } per project, outcome cloned, updated, current or kept.
|
|
+// Rejects with CheckoutError when a missing clone can't be made.
|
|
+export async function ensureCheckouts({ workspace, projects, env = process.env }) {
|
|
+ const out = [];
|
|
+ for (const [project, { root }] of Object.entries(projects)) {
|
|
+ const dest = join(workspace, project);
|
|
+ let exists = true;
|
|
+ try {
|
|
+ lstatSync(dest);
|
|
+ } catch (e) {
|
|
+ if (e.code !== "ENOENT") throw new CheckoutError(project, `${dest} can't be read: ${e.code}`);
|
|
+ exists = false;
|
|
+ }
|
|
+ out.push({ project, path: dest, ...(exists ? await update(root, dest, env) : await clone(project, root, workspace, dest, env)) });
|
|
+ }
|
|
+ return out;
|
|
+}
|
|
diff --git a/packages/seat/tests/checkout.test.mjs b/packages/seat/tests/checkout.test.mjs
|
|
new file mode 100644
|
|
index 00000000..73a3f57b
|
|
--- /dev/null
|
|
+++ b/packages/seat/tests/checkout.test.mjs
|
|
@@ -0,0 +1,291 @@
|
|
+// The project checkouts in a role workspace (src/checkout.mjs), against
|
|
+// real git repositories in a temp directory. Every case also checks that
|
|
+// the root's files and refs are byte for byte what they were.
|
|
+
|
|
+import { test } from "node:test";
|
|
+import assert from "node:assert/strict";
|
|
+import { spawnSync } from "node:child_process";
|
|
+import { createHash } from "node:crypto";
|
|
+import { chmodSync, existsSync, linkSync, lstatSync, mkdirSync, mkdtempSync, readdirSync, readFileSync, readlinkSync, rmSync, symlinkSync, writeFileSync } from "node:fs";
|
|
+import { tmpdir } from "node:os";
|
|
+import { join } from "node:path";
|
|
+import { CONFIG_MAX_BYTES, CheckoutError, ensureCheckouts, gitEnv } from "../src/checkout.mjs";
|
|
+
|
|
+function tmp(t) {
|
|
+ const dir = mkdtempSync(join(tmpdir(), "mosaic-checkout-"));
|
|
+ t.after(() => {
|
|
+ spawnSync("chmod", ["-R", "u+rwx", dir]);
|
|
+ rmSync(dir, { recursive: true, force: true });
|
|
+ });
|
|
+ return dir;
|
|
+}
|
|
+
|
|
+// git for the test's own setup, with no user config.
|
|
+function git(cwd, ...args) {
|
|
+ const r = spawnSync("git", ["-c", "user.name=t", "-c", "[email protected]", ...args], { cwd, encoding: "utf8", env: gitEnv() });
|
|
+ assert.equal(r.status, 0, `git ${args.join(" ")}: ${r.stderr}`);
|
|
+ return r.stdout.trim();
|
|
+}
|
|
+
|
|
+// A repository on `main` with one commit.
|
|
+function repo(dir, name = "root") {
|
|
+ const root = join(dir, name);
|
|
+ mkdirSync(root);
|
|
+ git(root, "init", "-q", "-b", "main");
|
|
+ writeFileSync(join(root, "README"), "one\n");
|
|
+ git(root, "add", "README");
|
|
+ git(root, "commit", "-q", "-m", "one");
|
|
+ return root;
|
|
+}
|
|
+
|
|
+function commit(root, text) {
|
|
+ writeFileSync(join(root, "README"), text);
|
|
+ git(root, "commit", "-q", "-am", text.trim());
|
|
+ return git(root, "rev-parse", "HEAD");
|
|
+}
|
|
+
|
|
+// Every path under `dir` with its type, mode, link count and contents or
|
|
+// link target.
|
|
+function fingerprint(dir) {
|
|
+ const h = createHash("sha256");
|
|
+ const walk = (d) => {
|
|
+ for (const name of readdirSync(d).sort()) {
|
|
+ const p = join(d, name);
|
|
+ const st = lstatSync(p);
|
|
+ h.update(`${p}\0${st.mode}\0${st.nlink}\0`);
|
|
+ if (st.isDirectory()) walk(p);
|
|
+ else if (st.isSymbolicLink()) h.update(readlinkSync(p));
|
|
+ else if (st.isFile()) h.update(readFileSync(p));
|
|
+ }
|
|
+ };
|
|
+ walk(dir);
|
|
+ return h.digest("hex");
|
|
+}
|
|
+
|
|
+// A root, an empty workspace, and `ensure()` for the one project `stack`.
|
|
+function world(t) {
|
|
+ const dir = tmp(t);
|
|
+ const root = repo(dir);
|
|
+ const workspace = join(dir, "ws");
|
|
+ mkdirSync(workspace, { mode: 0o700 });
|
|
+ const projects = { stack: { root } };
|
|
+ return { dir, root, workspace, clone: join(workspace, "stack"), ensure: () => ensureCheckouts({ workspace, projects }) };
|
|
+}
|
|
+
|
|
+// ensure() returning its one checkout, with the root unchanged by it.
|
|
+async function once(w) {
|
|
+ const before = fingerprint(w.root);
|
|
+ const list = await w.ensure();
|
|
+ assert.equal(list.length, 1);
|
|
+ assert.equal(fingerprint(w.root), before, "the root is unchanged");
|
|
+ return list[0];
|
|
+}
|
|
+
|
|
+test("a first launch clones the root at its branch, with the root's path as origin", async (t) => {
|
|
+ const w = world(t);
|
|
+ assert.deepEqual(await once(w), { project: "stack", path: w.clone, outcome: "cloned", branch: "main" });
|
|
+ assert.equal(git(w.clone, "symbolic-ref", "--short", "HEAD"), "main");
|
|
+ assert.equal(git(w.clone, "rev-parse", "HEAD"), git(w.root, "rev-parse", "HEAD"));
|
|
+ assert.equal(git(w.clone, "remote", "get-url", "origin"), w.root);
|
|
+ assert.equal(readFileSync(join(w.clone, "README"), "utf8"), "one\n");
|
|
+ assert.deepEqual(readdirSync(w.workspace), ["stack"], "no temp directory is left");
|
|
+ // --no-hardlinks: no file under .git is shared with the root, and no hook came with it.
|
|
+ const files = readdirSync(join(w.clone, ".git"), { recursive: true }).map((p) => join(w.clone, ".git", p)).filter((p) => lstatSync(p).isFile());
|
|
+ assert.ok(files.some((p) => p.includes("/objects/")));
|
|
+ for (const p of files) assert.equal(lstatSync(p).nlink, 1, p);
|
|
+ assert.equal(existsSync(join(w.clone, ".git", "hooks")), false);
|
|
+});
|
|
+
|
|
+// A host stopped mid-clone must not leave a half clone where the next
|
|
+// launch takes it for the session's. A git on PATH runs the real one, then
|
|
+// notes whether <workspace>/stack exists yet.
|
|
+test("the clone is not at its place until git clone has finished", async (t) => {
|
|
+ const w = world(t);
|
|
+ const bin = join(w.dir, "bin");
|
|
+ mkdirSync(bin);
|
|
+ const real = spawnSync("sh", ["-c", "command -v git"], { encoding: "utf8" }).stdout.trim();
|
|
+ const seen = join(w.dir, "seen");
|
|
+ writeFileSync(join(bin, "git"), `#!/bin/sh\n'${real}' "$@"; s=$?\ncase " $* " in *" clone "*) if [ -e '${w.clone}' ]; then echo there; else echo absent; fi >> '${seen}';; esac\nexit $s\n`, { mode: 0o755 });
|
|
+ const list = await ensureCheckouts({ workspace: w.workspace, projects: { stack: { root: w.root } }, env: { PATH: `${bin}:${process.env.PATH}` } });
|
|
+ assert.equal(list[0].outcome, "cloned");
|
|
+ assert.equal(readFileSync(seen, "utf8"), "absent\n");
|
|
+ assert.deepEqual(readdirSync(w.workspace), ["stack"]);
|
|
+});
|
|
+
|
|
+test("a later launch fast-forwards a clean clone after a commit to the root, then finds it current", async (t) => {
|
|
+ const w = world(t);
|
|
+ await once(w);
|
|
+ const head = commit(w.root, "two\n");
|
|
+ assert.deepEqual(await once(w), { project: "stack", path: w.clone, outcome: "updated", branch: "main" });
|
|
+ assert.equal(git(w.clone, "rev-parse", "HEAD"), head);
|
|
+ assert.equal(readFileSync(join(w.clone, "README"), "utf8"), "two\n");
|
|
+ assert.deepEqual(await once(w), { project: "stack", path: w.clone, outcome: "current", branch: "main" });
|
|
+ assert.equal(git(w.clone, "status", "--porcelain"), "");
|
|
+});
|
|
+
|
|
+test("a clone ahead of the root keeps its commits and counts as current", async (t) => {
|
|
+ const w = world(t);
|
|
+ await once(w);
|
|
+ const mine = commit(w.clone, "mine\n");
|
|
+ assert.equal((await once(w)).outcome, "current");
|
|
+ assert.equal(git(w.clone, "rev-parse", "HEAD"), mine);
|
|
+});
|
|
+
|
|
+test("a dirty clone, one on another branch and one diverged are kept as they are", async (t) => {
|
|
+ for (const [name, edit, reason] of [
|
|
+ ["a modified file", (c) => writeFileSync(join(c, "README"), "mine\n"), "dirty"],
|
|
+ ["an untracked file", (c) => writeFileSync(join(c, "NEW"), "mine\n"), "dirty"],
|
|
+ ["a staged file", (c) => (writeFileSync(join(c, "NEW"), "x"), git(c, "add", "NEW")), "dirty"],
|
|
+ ["another branch", (c) => git(c, "checkout", "-q", "-b", "work"), "other-branch"],
|
|
+ ["a detached HEAD", (c) => git(c, "checkout", "-q", "--detach"), "other-branch"],
|
|
+ ["a diverged branch", (c) => commit(c, "mine\n"), "not-fast-forward"],
|
|
+ ]) {
|
|
+ await t.test(name, async (t) => {
|
|
+ const w = world(t);
|
|
+ await once(w);
|
|
+ edit(w.clone);
|
|
+ commit(w.root, "two\n");
|
|
+ const head = git(w.clone, "rev-parse", "HEAD");
|
|
+ const before = reason === "not-fast-forward" ? null : fingerprint(w.clone);
|
|
+ assert.deepEqual(await once(w), { project: "stack", path: w.clone, outcome: "kept", reason });
|
|
+ assert.equal(git(w.clone, "rev-parse", "HEAD"), head, "HEAD didn't move");
|
|
+ // A diverged clone gets the fetch into refs/remotes, and nothing else.
|
|
+ if (before) assert.equal(fingerprint(w.clone), before, "the clone is exactly as it was");
|
|
+ else assert.equal(readFileSync(join(w.clone, "README"), "utf8"), "mine\n");
|
|
+ });
|
|
+ }
|
|
+});
|
|
+
|
|
+// A repository outside the workspace whose config and hooks run a command
|
|
+// that touches `marker`, for the cases that point git there.
|
|
+function bait(dir, marker) {
|
|
+ const evil = repo(dir, "evil");
|
|
+ const script = join(dir, "run.sh");
|
|
+ writeFileSync(script, `#!/bin/sh\ntouch '${marker}'\n`, { mode: 0o755 });
|
|
+ git(evil, "config", "core.fsmonitor", script);
|
|
+ git(evil, "config", "core.hooksPath", join(evil, ".git", "hooks"));
|
|
+ mkdirSync(join(evil, ".git", "hooks"), { recursive: true });
|
|
+ for (const h of ["post-merge", "post-checkout", "reference-transaction", "pre-auto-gc", "post-index-change"]) writeFileSync(join(evil, ".git", "hooks", h), `#!/bin/sh\ntouch '${marker}'\n`, { mode: 0o755 });
|
|
+ return { evil, script };
|
|
+}
|
|
+
|
|
+// Each way a session could make the host's git run a command or write
|
|
+// outside the clone. Every one keeps the clone, nothing runs, and neither
|
|
+// the root nor the bait repository changes.
|
|
+test("a clone the session rigged is kept, and git runs nothing and writes nothing outside it", async (t) => {
|
|
+ const egit = (b) => join(b.evil, ".git");
|
|
+ for (const [name, edit, reason] of [
|
|
+ ["core.fsmonitor", (c, b) => git(c, "config", "core.fsmonitor", b.script), "config-changed"],
|
|
+ ["core.hooksPath", (c, b) => git(c, "config", "core.hooksPath", join(egit(b), "hooks")), "config-changed"],
|
|
+ ["a hook file", (c, b) => {
|
|
+ mkdirSync(join(c, ".git", "hooks"));
|
|
+ writeFileSync(join(c, ".git", "hooks", "post-merge"), readFileSync(join(egit(b), "hooks", "post-merge")), { mode: 0o755 });
|
|
+ }, "hooks-present"],
|
|
+ ["include.path", (c, b) => git(c, "config", "include.path", join(egit(b), "config")), "config-changed"],
|
|
+ ["includeIf", (c, b) => git(c, "config", "includeIf.gitdir:/.path", join(egit(b), "config")), "config-changed"],
|
|
+ ["a filter driver", (c, b) => {
|
|
+ git(c, "config", "filter.x.smudge", `${b.script}; cat`);
|
|
+ mkdirSync(join(c, ".git", "info"), { recursive: true });
|
|
+ writeFileSync(join(c, ".git", "info", "attributes"), "* filter=x\n");
|
|
+ }, "config-changed"],
|
|
+ ["origin moved", (c, b) => git(c, "remote", "set-url", "origin", b.evil), "config-changed"],
|
|
+ ["a second origin url", (c, b) => git(c, "config", "--add", "remote.origin.url", b.evil), "config-changed"],
|
|
+ ["the origin url twice, both the root", (c) => git(c, "config", "--add", "remote.origin.url", git(c, "config", "--get", "remote.origin.url")), "config-changed"],
|
|
+ ["an ext:: origin", (c, b) => git(c, "remote", "set-url", "origin", `ext::${b.script}`), "config-changed"],
|
|
+ ["a branch tracking another remote", (c) => git(c, "config", "branch.main.remote", "elsewhere"), "config-changed"],
|
|
+ ["a branch merging a tag", (c) => git(c, "config", "branch.main.merge", "refs/tags/x"), "config-changed"],
|
|
+ ["a fetch line onto local branches", (c) => git(c, "config", "remote.origin.fetch", "+refs/heads/*:refs/heads/*"), "config-changed"],
|
|
+ ["no origin", (c) => git(c, "remote", "remove", "origin"), "config-changed"],
|
|
+ ["a config file over the size cap", (c) => writeFileSync(join(c, ".git", "config"), `${readFileSync(join(c, ".git", "config"), "utf8")}#${"x".repeat(CONFIG_MAX_BYTES)}\n`), "config-changed"],
|
|
+ ["config a symlink to /dev/zero", (c) => (rmSync(join(c, ".git", "config")), symlinkSync("/dev/zero", join(c, ".git", "config"))), "not-a-clone"],
|
|
+ ["the clone a symlink to the bait", (c, b) => (rmSync(c, { recursive: true }), symlinkSync(b.evil, c)), "not-a-clone"],
|
|
+ ["the clone a file", (c) => (rmSync(c, { recursive: true }), writeFileSync(c, "x")), "not-a-clone"],
|
|
+ ["the clone a plain directory", (c) => rmSync(join(c, ".git"), { recursive: true }), "not-a-clone"],
|
|
+ [".git a gitdir: file", (c, b) => (rmSync(join(c, ".git"), { recursive: true }), writeFileSync(join(c, ".git"), `gitdir: ${egit(b)}\n`)), "not-a-clone"],
|
|
+ [".git a symlink", (c, b) => (rmSync(join(c, ".git"), { recursive: true }), symlinkSync(egit(b), join(c, ".git"))), "not-a-clone"],
|
|
+ [".git/logs a symlink", (c, b) => (rmSync(join(c, ".git", "logs"), { recursive: true }), symlinkSync(join(egit(b), "logs"), join(c, ".git", "logs"))), "not-a-clone"],
|
|
+ [".git/refs/heads a symlink", (c, b) => (rmSync(join(c, ".git", "refs", "heads"), { recursive: true }), symlinkSync(join(egit(b), "refs", "heads"), join(c, ".git", "refs", "heads"))), "not-a-clone"],
|
|
+ [".git/objects a symlink", (c, b) => (rmSync(join(c, ".git", "objects"), { recursive: true }), symlinkSync(join(egit(b), "objects"), join(c, ".git", "objects"))), "not-a-clone"],
|
|
+ ["a reflog hard-linked to a file outside", (c, b) => (rmSync(join(c, ".git", "logs", "HEAD")), linkSync(join(egit(b), "logs", "HEAD"), join(c, ".git", "logs", "HEAD"))), "not-a-clone"],
|
|
+ ["HEAD a fifo", (c) => (rmSync(join(c, ".git", "HEAD")), spawnSync("mkfifo", [join(c, ".git", "HEAD")])), "not-a-clone"],
|
|
+ ["a commondir file", (c, b) => writeFileSync(join(c, ".git", "commondir"), `${egit(b)}\n`), "not-a-clone"],
|
|
+ ["an alternates file", (c, b) => (mkdirSync(join(c, ".git", "objects", "info"), { recursive: true }), writeFileSync(join(c, ".git", "objects", "info", "alternates"), `${join(egit(b), "objects")}\n`)), "not-a-clone"],
|
|
+ ]) {
|
|
+ await t.test(name, async (t) => {
|
|
+ const w = world(t);
|
|
+ const marker = join(w.dir, "RAN");
|
|
+ const b = bait(w.dir, marker);
|
|
+ await once(w);
|
|
+ edit(w.clone, b);
|
|
+ commit(w.root, "two\n");
|
|
+ const evilBefore = fingerprint(b.evil);
|
|
+ assert.deepEqual(await once(w), { project: "stack", path: w.clone, outcome: "kept", reason });
|
|
+ assert.equal(existsSync(marker), false, "nothing the session wrote ran");
|
|
+ assert.equal(fingerprint(b.evil), evilBefore, "nothing outside the clone was written");
|
|
+ });
|
|
+ }
|
|
+});
|
|
+
|
|
+test("a root that can't be cloned refuses with the project id and leaves nothing behind", async (t) => {
|
|
+ for (const [name, make, why] of [
|
|
+ ["missing", (w) => rmSync(w.root, { recursive: true }), /can't be read/],
|
|
+ ["not a repository", (w) => rmSync(join(w.root, ".git"), { recursive: true }), /can't be read/],
|
|
+ ["a plain directory inside another repository", (w) => {
|
|
+ rmSync(join(w.root, ".git"), { recursive: true });
|
|
+ git(w.dir, "init", "-q", "-b", "main");
|
|
+ git(w.dir, "commit", "-q", "--allow-empty", "-m", "outer");
|
|
+ }, /can't be read/],
|
|
+ ["unreadable", (w) => chmodSync(w.root, 0o000), /can't be read/],
|
|
+ ["on no branch", (w) => git(w.root, "checkout", "-q", "--detach"), /no branch checked out/],
|
|
+ ["missing an object", (w) => {
|
|
+ // git starts writing the clone, then can't check the file out.
|
|
+ const blob = git(w.root, "rev-parse", "HEAD:README");
|
|
+ rmSync(join(w.root, ".git", "objects", blob.slice(0, 2), blob.slice(2)));
|
|
+ }, /git clone of .* failed/],
|
|
+ ]) {
|
|
+ await t.test(name, async (t) => {
|
|
+ const w = world(t);
|
|
+ make(w);
|
|
+ await assert.rejects(w.ensure, (e) => e instanceof CheckoutError && e.project === "stack" && why.test(e.message));
|
|
+ assert.deepEqual(readdirSync(w.workspace), [], "no clone and no temp directory");
|
|
+ });
|
|
+ }
|
|
+});
|
|
+
|
|
+test("a clone whose root is on no branch, or gone, is kept and named", async (t) => {
|
|
+ const w = world(t);
|
|
+ await once(w);
|
|
+ git(w.root, "checkout", "-q", "--detach");
|
|
+ assert.equal((await once(w)).reason, "root-detached");
|
|
+ rmSync(join(w.root, ".git"), { recursive: true });
|
|
+ // The clone's config still names this path, so its check passes and the root's read fails.
|
|
+ assert.deepEqual(await w.ensure(), [{ project: "stack", path: w.clone, outcome: "kept", reason: "root-unreadable" }]);
|
|
+});
|
|
+
|
|
+test("no credential or forge remote of the root reaches a clone", async (t) => {
|
|
+ const w = world(t);
|
|
+ git(w.root, "remote", "add", "origin", "https://bot:[email protected]/acme/stack.git");
|
|
+ git(w.root, "remote", "add", "gitea", "ssh://[email protected]/acme/stack.git");
|
|
+ git(w.root, "config", "http.extraHeader", "Authorization: token s3cr3t-token");
|
|
+ const secret = () => spawnSync("grep", ["-rlE", "s3cr3t|git\\.example", join(w.clone, ".git")], { encoding: "utf8" }).stdout;
|
|
+ await once(w);
|
|
+ assert.equal(git(w.clone, "remote"), "origin");
|
|
+ assert.equal(git(w.clone, "remote", "get-url", "origin"), w.root);
|
|
+ assert.equal(secret(), "");
|
|
+ // And the fast-forward keeps it that way.
|
|
+ commit(w.root, "two\n");
|
|
+ assert.equal((await once(w)).outcome, "updated");
|
|
+ assert.equal(secret(), "");
|
|
+});
|
|
+
|
|
+test("every project in the business file gets its own clone at its own branch", async (t) => {
|
|
+ const dir = tmp(t);
|
|
+ const a = repo(dir, "a");
|
|
+ const b = repo(dir, "b");
|
|
+ git(b, "checkout", "-q", "-b", "dev");
|
|
+ const workspace = join(dir, "ws");
|
|
+ mkdirSync(workspace);
|
|
+ const list = await ensureCheckouts({ workspace, projects: { alpha: { root: a }, beta: { root: b } } });
|
|
+ assert.deepEqual(list.map((c) => [c.project, c.path, c.outcome, c.branch]), [["alpha", join(workspace, "alpha"), "cloned", "main"], ["beta", join(workspace, "beta"), "cloned", "dev"]]);
|
|
+ assert.equal(git(join(workspace, "beta"), "symbolic-ref", "--short", "HEAD"), "dev");
|
|
+});
|