Files
pad/internal/cli
xarmian fc1c47f124 feat(attachments): CLI + TypeScript clients + types (TASK-873) (#290)
* feat(attachments): CLI + TypeScript clients + types (TASK-873)

Rounds out the API surface with Go and TS client methods + a
\`pad attachment\` Cobra subcommand for ops debugging.

internal/cli/client.go
  AttachmentUploadResult struct mirrors POST /attachments JSON.
  UploadAttachment streams a multipart file part via io.Pipe — never
  buffers the upload in memory. itemRef is optional. Uses a fresh
  http.Client with a 5-minute timeout per request so a 25 MiB upload
  over a constrained link doesn't trip the package-shared 10s default.
  DownloadAttachment streams the bytes into the caller's writer,
  returning Content-Type + total bytes copied. Optional ?variant=
  parameter for thumbnails (server falls back to original silently
  per TASK-872).

cmd/pad/main.go
  pad attachment upload <item-ref|-> <path> [--filename NAME]
  pad attachment download <id> <out|-> [--variant thumb-sm|thumb-md]

  Item arg accepts an issue ref (TASK-5) or slug; "-" means no parent.
  Out arg "-" streams to stdout (with status messages on stderr) so
  callers can pipe into image viewers etc. Resolves the item via
  GetItem first so a typo'd ref fails fast with a useful error.

  List + delete subcommands intentionally omitted — those endpoints
  ship with TASK-881 (storage usage) and the future GC task. Adding
  client methods that hit 404s would mislead callers; same logic kept
  the upload response's "url" out of TASK-871 until TASK-872 wired GET.

web/src/lib/types/index.ts
  Attachment interface mirroring the Go model (pointer types → optional).
  AttachmentUploadResult interface for the upload response shape.

web/src/lib/api/client.ts
  api.attachments.upload(workspaceSlug, file, itemId?) — multipart
  POST via direct fetch (skips shared request() because that helper
  hard-codes Content-Type: application/json). Carries CSRF, cookies,
  and the same 401 → /login redirect.
  api.attachments.downloadUrl(workspaceSlug, attachmentId, variant?)
  is a pure URL builder so callers can wire <img src> directly without
  going through fetch.

End-to-end smoke verified:
  pad attachment upload TASK-869 /tmp/tiny.png   # uploads PNG
  pad attachment download <id> /tmp/dl.png       # bytes are identical
  cmp /tmp/tiny.png /tmp/dl.png                  # PASS

Verification
  go build ./... — clean
  go vet ./... — clean
  go test ./... — all packages pass
  cd web && npm run build — clean
  make install — server restarts on the new binary

Parent: PLAN-866.

* fix(cli): atomic download — write to temp + rename so a failed download doesn't truncate the destination per Codex review (round 1)

P2: pad attachment download <bad-id> /existing/file used to wipe the
existing file on auth/network/404 errors because os.Create truncated
before the request was even attempted. The bytes were never written
because DownloadAttachment errored out, but the destination was
already 0 bytes — a footgun for anyone running the CLI in scripts.

Fix: for the file-path case, write to a sibling .tmp via os.CreateTemp
in the destination directory, fsync, close, then os.Rename only on
success. Same atomic-write pattern as FSStore.Put. The defer cleans
up the .tmp on any error path.

The stdout case (outPath == "-") is unchanged — bytes already
streamed to stdout can't be rolled back, so any partial write is
just visible to the caller as a short payload.

Verified end-to-end:
  echo X > /tmp/existing.png
  pad attachment download not-a-real-id /tmp/existing.png  # errors
  cat /tmp/existing.png   # still "X" — file untouched

* docs(cli): clarify os.Rename atomic-replace behavior on Windows (Codex round 2 disagreement)

Round 2 flagged this as P2: "os.Rename does not replace an existing
destination on Windows." That is technically incorrect for modern Go.

Verified directly against the Go stdlib source:

  src/internal/syscall/windows/syscall_windows.go:
    func Rename(oldpath, newpath string) error {
      ...
      return MoveFileEx(from, to, MOVEFILE_REPLACE_EXISTING)
    }

MoveFileEx with MOVEFILE_REPLACE_EXISTING atomically replaces an
existing destination on Windows. This has been the behavior since
Go 1.5 (2015), so every version of Go this codebase supports already
gets the desired replace-on-rename semantics on every platform.

Added an inline code comment so future readers don't worry about the
same false alarm. No code-path change.
2026-04-29 12:48:57 -04:00
..
2026-03-26 01:52:36 +00:00
2026-03-26 01:52:36 +00:00
2026-03-26 01:52:36 +00:00