Files
PaperClipAI/server/src
DottaandPaperclip afbc5a885b fix(workspaces): save partial and shallow Git checkouts offline (#18990)
## Thinking Path

> - Paperclip manages AI agents and their workspaces.
> - A completed remote run must save its files before finalization can
release its source.
> - A shallow Git mirror uses upload-pack and can omit objects that
exist only in the index.
> - A filtered source can also fail when that mirror requests blobs the
source never downloaded.
> - Fetching missing history is not required to preserve an existing
partial checkout.
> - This change saves the available object stores and their existing
shallow, sparse, and promisor state.
> - The benefit is an offline save that preserves accepted work and
remains readable by the existing archive reader.

## Linked Issues or Issue Description

Refs #16727, #18705, and #18935. These changes cover managed clones,
streaming capture, and safe diagnostics. This change repairs Git
snapshot contents.

**What happened?**

Remote workspace capture invokes a mirror clone before it saves the
archive. A shallow filtered sparse checkout with a missing promised blob
fails that clone and surfaces `remote_workspace_operation_failed`. An
ordinary shallow checkout can also lose an index-only object during the
mirror transfer.

**Expected behavior**

Capture preserves the objects already available in the checkout,
including staged work. It preserves partial, shallow, and sparse
semantics without remote hydration. Corrupt or unsupported state must
keep its source and receive no successful save receipt.

**Steps to reproduce**

1. Create a real Git repository with two paths and commit history.
2. Clone it with `--filter=blob:none --depth=1 --sparse`, then select
one path.
3. Stage a change, edit it again, and add an untracked file.
4. Remove access to the original repository and capture the workspace.
5. The base capture fails before transfer. The changed capture restores
the available work after the original source is removed.

**Paperclip version or commit**

Reproduced on `86814c655`. The same transport/archive sources are
present in `76e43852a`.

## What Changed

- Preserve existing object files for shallow and partial repositories,
including their original promisor pack markers.
- Preserve shallow boundaries and the selected sparse settings and
patterns.
- Validate available object contents with full Git fsck. Reject unknown
corruption instead of creating new promises.
- Deny Git network protocols during capture. Keep the ordinary mirror's
explicit local file transport.
- Exclude ambient Git location, index, object-store, config, and
template overrides. Disable templates for init and clone.
- Keep the existing archive format, source fences, path guards,
credential allowlist, and failure retention.
- Add real command and reader regressions for full, shallow, filtered,
sparse, corrupt, and unsupported repositories.

## Verification

- Red: the compiled Node 24 transport completed helper installation,
then failed capture with the same generic operation error and no
transfer. Dirty source bytes remained intact.
- Red: the new full/shallow/partial transport-to-reader cases exposed
both filtered upload-pack failure and a missing staged-only object.
Independent review then reproduced accepted corrupt object bytes and
ambient template config/hook copying.
- Green: all 110 transport/archive cases pass after those repairs. They
cover staged, dirty, and untracked work; ordinary and forged-promisor
corruption; malformed filters; alternate stores; unsafe links;
credential redaction; and template isolation. An initial linked-worktree
config regression was fixed before this complete passing run.
- A compiled new capture restored through both the unchanged earlier
reader and the new reader after source removal. HEAD, status, work
bytes, sparse/shallow state, and the same missing promised object were
preserved. Full Git fsck passed. No remote protocol was permitted.
- Full repository `pnpm -r typecheck` and `pnpm build` pass at
`91ca00a8327216def91303e19940e92ffe07c08f`. The build stamp names that
exact head.
- The [complete current-head CI
run](https://github.com/paperclipai/paperclip/actions/runs/41865961403/attempts/2)
is green: all 58 checks are terminal with no failure or pending check.
Three expected skips and one neutral review remain those states.
- Preserve the [first CI
attempt](https://github.com/paperclipai/paperclip/actions/runs/41865961403/attempts/1):
one browser case reached its 5-second heading deadline while the
conversation pane was loading; a chat worker reported shutdown; another
browser worker lost communication and its log blob was absent. A
failed-job-only retry passed at the same source head. No test deadline,
assertion, or source change was made for that retry.
- The complete local `pnpm test:run` passed all 1,904 chat cases across
six partitions. Its later general-server phase timed out two unchanged
tool-access cases at 15 seconds. That known-red command was stopped
before completion. Both cases then passed unchanged in a fresh isolated
process. The original timeout cause remains unknown; this is not a full
local-suite pass.
- [Greptile reports
5/5](https://github.com/paperclipai/paperclip/pull/18990#issuecomment-6635931211)
at the current head with no actionable finding. The product review's
loose-object cost advisory was [answered with local measurements and
resolved](https://github.com/paperclipai/paperclip/pull/18990#discussion_r4470261833).
There are no unresolved review threads.
- Original service acceptance remains unverified. Recorded checkout text
is mechanism-compatible narrative evidence, not proof of its physical
Git state or original failure cause. This PR includes no deployment or
additional live recovery.

## Risks

- Full object validation and copying available metadata use CPU and
temporary space proportional to the local object store.
- The offline path rejects alternate object stores and unsupported
partial filters. Such sources remain protected.
- Promised objects remain missing. Later work still needs ordinary
repository access to request them.
- There is no archive format or schema change. Existing readers restore
standard Git files, and existing full snapshots remain covered.

## Model Used

OpenAI Codex, GPT-6 family, with reasoning, repository tools, shell
execution, and local verification. The host does not expose a more
specific serving model ID or context window size.

## 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 searched GitHub for duplicate or related PRs and linked
them above
- [x] I have either (a) linked existing issues with `Fixes: #` / `Closes
#` / `Refs #` OR (b) described the issue in-PR following the relevant
issue template
- [x] I have not referenced internal/instance-local Paperclip issues or
links (only public GitHub `#NNN` / `github.com/paperclipai/paperclip`
URLs)
- [x] My branch name describes the change (e.g. `docs/...`, `fix/...`)
and contains no internal Paperclip ticket id or instance-derived details
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] All Paperclip CI gates are green
- [x] Greptile is 5/5 with no open P2s, recommendations, or follow-ups
- [x] I will address all Greptile and reviewer comments before
requesting merge

---------

Co-authored-by: Paperclip <noreply@paperclip.ing>
2026-11-04 10:52:39 -06:00
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