forked from farhoodlabs/paperclip
Harden remote workspace sync and restore flows (#5444)
## Thinking Path
> - Paperclip orchestrates AI agents for zero-human companies
> - When an agent runs against a remote target, Paperclip syncs the
workspace out to the remote at run start and restores changes back to
the local workspace at run end
> - The previous restore flow naïvely overwrote local files with
whatever the remote returned, so files that the remote run never touched
but had timestamp/mode drift could be needlessly rewritten — and a
single static `refs/paperclip/ssh-sync/imported` ref made concurrent SSH
workspace exports race on the same git ref
> - This pull request adds a `workspace-restore-merge` module that diffs
a pre-run snapshot against the post-run remote state and only writes
back files the remote actually changed; SSH workspace exports now use a
per-import unique ref so concurrent runs can't trample each other
> - Every adapter's execute path threads the snapshot through
`prepareAdapterExecutionTargetRuntime` so the merge has the baseline it
needs
> - The benefit is workspace restores no longer churn untouched files,
and concurrent SSH runs no longer collide on the import ref
## What Changed
- `packages/adapter-utils/src/workspace-restore-merge.{ts,test.ts}`: new
module — directory snapshot (kind/mode/sha256/symlink target) plus
snapshot-aware merge that writes only the files the remote changed
- `packages/adapter-utils/src/ssh.ts`: SSH workspace export uses a
per-import unique ref (`refs/paperclip/ssh-sync/imported/<uuid>`);
restore goes through the new merge helper; `ssh-fixture.test.ts` covers
the unique-ref + merge paths
- `packages/adapter-utils/src/sandbox-managed-runtime.ts` +
`remote-managed-runtime.ts`: thread the snapshot/merge through the
sandbox and SSH paths
- `packages/adapter-utils/src/server-utils.{ts,test.ts}` +
`execution-target.ts`: helpers for capturing the pre-run snapshot;
`prepareAdapterExecutionTargetRuntime` gains required `runId` and
optional `workspaceRemoteDir`, and returns the realized
`workspaceRemoteDir`
- Each adapter's `execute.ts` (acpx, claude, codex, cursor, gemini,
opencode, pi) takes the snapshot at run start and passes it through to
the runtime restore
- Remote execute test mocks updated to match the new
`prepareWorkspaceForSshExecution` return shape and the per-run
`${managedRemoteWorkspace}` cwd subdirectory
## Verification
- `pnpm vitest run --no-coverage --project @paperclipai/adapter-utils
--project @paperclipai/adapter-acpx-local --project
@paperclipai/adapter-claude-local --project
@paperclipai/adapter-codex-local --project
@paperclipai/adapter-cursor-local --project
@paperclipai/adapter-gemini-local --project
@paperclipai/adapter-opencode-local --project
@paperclipai/adapter-pi-local` — 196/196 passing
- `pnpm typecheck` clean across the workspace
## Risks
Medium. The restore path now writes a strict subset of what it
previously did — files the remote did not touch are no longer rewritten.
If any flow was relying on a touch-without-content-change being copied
back (timestamp or permission propagation only), that behavior is now
skipped. Snapshot capture adds an O(N-files-in-workspace) hash pass at
run start; the cost is bounded by the existing exclude list. The `runId`
parameter on `prepareAdapterExecutionTargetRuntime` is now required —
every in-tree caller is updated; out-of-tree adapter authors need to
pass it.
## Model Used
Claude Opus 4.7 (1M context)
## Checklist
- [x] I have included a thinking path that traces from project context
to this change
- [x] I have specified the model used (with version and capability
details)
- [x] I have checked ROADMAP.md and confirmed this PR does not duplicate
planned core work
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable — new module +
every adapter execute path covered
- [x] If this change affects the UI, I have included before/after
screenshots — N/A (no UI)
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] I will address all Greptile and reviewer comments before
requesting merge
This commit is contained in:
Devin Foley
@@ -23,7 +23,7 @@ const {
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})),
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ensureCommandResolvable: vi.fn(async () => undefined),
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resolveCommandForLogs: vi.fn(async () => "/usr/bin/codex"),
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prepareWorkspaceForSshExecution: vi.fn(async () => undefined),
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prepareWorkspaceForSshExecution: vi.fn(async () => ({ gitBacked: false })),
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restoreWorkspaceFromSshExecution: vi.fn(async () => undefined),
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syncDirectoryToSsh: vi.fn(async () => undefined),
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startAdapterExecutionTargetPaperclipBridge: vi.fn(async () => ({
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@@ -89,6 +89,7 @@ describe("codex remote execution", () => {
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cleanupDirs.push(rootDir);
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const workspaceDir = path.join(rootDir, "workspace");
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const codexHomeDir = path.join(rootDir, "codex-home");
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const managedRemoteWorkspace = "/remote/workspace/.paperclip-runtime/runs/run-1/workspace";
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await mkdir(workspaceDir, { recursive: true });
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await mkdir(codexHomeDir, { recursive: true });
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await writeFile(path.join(rootDir, "instructions.md"), "Use the remote workspace.\n", "utf8");
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@@ -161,12 +162,12 @@ describe("codex remote execution", () => {
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expect(prepareWorkspaceForSshExecution).toHaveBeenCalledTimes(1);
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expect(prepareWorkspaceForSshExecution).toHaveBeenCalledWith(expect.objectContaining({
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localDir: workspaceDir,
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remoteDir: "/remote/workspace",
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remoteDir: managedRemoteWorkspace,
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}));
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expect(syncDirectoryToSsh).toHaveBeenCalledTimes(1);
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expect(syncDirectoryToSsh).toHaveBeenCalledWith(expect.objectContaining({
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localDir: codexHomeDir,
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remoteDir: "/remote/workspace/.paperclip-runtime/codex/home",
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remoteDir: `${managedRemoteWorkspace}/.paperclip-runtime/codex/home`,
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followSymlinks: true,
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}));
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@@ -174,13 +175,13 @@ describe("codex remote execution", () => {
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const call = runChildProcess.mock.calls[0] as unknown as
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| [string, string, string[], { env: Record<string, string>; remoteExecution?: { remoteCwd: string } | null }]
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| undefined;
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expect(call?.[3].env.CODEX_HOME).toBe("/remote/workspace/.paperclip-runtime/codex/home");
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expect(call?.[3].env.PAPERCLIP_WORKSPACE_CWD).toBe("/remote/workspace");
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expect(call?.[3].env.CODEX_HOME).toBe(`${managedRemoteWorkspace}/.paperclip-runtime/codex/home`);
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expect(call?.[3].env.PAPERCLIP_WORKSPACE_CWD).toBe(managedRemoteWorkspace);
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expect(call?.[3].env.PAPERCLIP_WORKSPACE_WORKTREE_PATH).toBeUndefined();
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expect(JSON.parse(call?.[3].env.PAPERCLIP_WORKSPACES_JSON ?? "[]")).toEqual([
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{
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workspaceId: "workspace-1",
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cwd: "/remote/workspace",
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cwd: managedRemoteWorkspace,
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repoUrl: "https://github.com/paperclipai/paperclip.git",
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repoRef: "main",
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},
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@@ -192,12 +193,12 @@ describe("codex remote execution", () => {
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]);
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expect(call?.[3].env.PAPERCLIP_API_URL).toBe("http://127.0.0.1:4310");
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expect(call?.[3].env.PAPERCLIP_API_BRIDGE_MODE).toBe("queue_v1");
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expect(call?.[3].remoteExecution?.remoteCwd).toBe("/remote/workspace");
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expect(call?.[3].remoteExecution?.remoteCwd).toBe(managedRemoteWorkspace);
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expect(startAdapterExecutionTargetPaperclipBridge).toHaveBeenCalledTimes(1);
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expect(restoreWorkspaceFromSshExecution).toHaveBeenCalledTimes(1);
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expect(restoreWorkspaceFromSshExecution).toHaveBeenCalledWith(expect.objectContaining({
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localDir: workspaceDir,
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remoteDir: "/remote/workspace",
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remoteDir: managedRemoteWorkspace,
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}));
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});
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@@ -269,6 +270,7 @@ describe("codex remote execution", () => {
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cleanupDirs.push(rootDir);
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const workspaceDir = path.join(rootDir, "workspace");
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const codexHomeDir = path.join(rootDir, "codex-home");
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const managedRemoteWorkspace = "/remote/workspace/.paperclip-runtime/runs/run-ssh-resume/workspace";
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await mkdir(workspaceDir, { recursive: true });
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await mkdir(codexHomeDir, { recursive: true });
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await writeFile(path.join(codexHomeDir, "auth.json"), "{}", "utf8");
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@@ -286,13 +288,13 @@ describe("codex remote execution", () => {
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sessionId: "session-123",
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sessionParams: {
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sessionId: "session-123",
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cwd: "/remote/workspace",
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cwd: managedRemoteWorkspace,
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remoteExecution: {
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transport: "ssh",
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host: "127.0.0.1",
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port: 2222,
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username: "fixture",
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remoteCwd: "/remote/workspace",
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remoteCwd: managedRemoteWorkspace,
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},
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},
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sessionDisplayId: "session-123",
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@@ -341,6 +343,7 @@ describe("codex remote execution", () => {
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cleanupDirs.push(rootDir);
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const workspaceDir = path.join(rootDir, "workspace");
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const codexHomeDir = path.join(rootDir, "codex-home");
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const managedRemoteWorkspace = "/remote/workspace/.paperclip-runtime/runs/run-target/workspace";
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await mkdir(workspaceDir, { recursive: true });
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await mkdir(codexHomeDir, { recursive: true });
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await writeFile(path.join(codexHomeDir, "auth.json"), "{}", "utf8");
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@@ -358,13 +361,13 @@ describe("codex remote execution", () => {
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sessionId: "session-123",
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sessionParams: {
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sessionId: "session-123",
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cwd: "/remote/workspace",
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cwd: managedRemoteWorkspace,
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remoteExecution: {
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transport: "ssh",
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host: "127.0.0.1",
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port: 2222,
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username: "fixture",
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remoteCwd: "/remote/workspace",
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remoteCwd: managedRemoteWorkspace,
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},
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},
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sessionDisplayId: "session-123",
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@@ -412,7 +415,7 @@ describe("codex remote execution", () => {
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"session-123",
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"-",
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]);
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expect(call?.[3].env.CODEX_HOME).toBe("/remote/workspace/.paperclip-runtime/codex/home");
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expect(call?.[3].remoteExecution?.remoteCwd).toBe("/remote/workspace");
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expect(call?.[3].env.CODEX_HOME).toBe(`${managedRemoteWorkspace}/.paperclip-runtime/codex/home`);
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expect(call?.[3].remoteExecution?.remoteCwd).toBe(managedRemoteWorkspace);
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});
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});
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