Function createAndUploadGitBundle

src/utils/teleport/gitBundle.ts:152–292

(
  config: FilesApiConfig,
  opts?: { cwd?: string; signal?: AbortSignal },
)

// Tracked WIP via stash create → refs/seed/stash (or baked into the
// squashed tree); untracked not captured.
export async function createAndUploadGitBundle(
  config: FilesApiConfig,
  opts?: { cwd?: string; signal?: AbortSignal },
): Promise<BundleUploadResult> {
  const workdir = opts?.cwd ?? getCwd()
  const gitRoot = findGitRoot(workdir)
  if (!gitRoot) {
    return { success: false, error: 'Not in a git repository' }
  }

  // Sweep stale refs from a crashed prior run before --all bundles them.
  // Runs before the empty-repo check so it's never skipped by an early return.
  for (const ref of ['refs/seed/stash', 'refs/seed/root']) {
    await execFileNoThrowWithCwd(gitExe(), ['update-ref', '-d', ref], {
      cwd: gitRoot,
    })
  }

  // `git bundle create` refuses to create an empty bundle (exit 128), and
  // `stash create` fails with "You do not have the initial commit yet".
  // Check for any refs (not just HEAD) so orphan branches with commits
  // elsewhere still bundle — `--all` packs those refs regardless of HEAD.
  const refCheck = await execFileNoThrowWithCwd(
    gitExe(),
    ['for-each-ref', '--count=1', 'refs/'],
    { cwd: gitRoot },
  )
  if (refCheck.code === 0 && refCheck.stdout.trim() === '') {
    logEvent('tengu_ccr_bundle_upload', {
      outcome:
        'empty_repo' as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
    })
    return {
      success: false,
      error: 'Repository has no commits yet',
      failReason: 'empty_repo',
    }
  }

  // stash create writes a dangling commit — doesn't touch refs/stash or
  // the working tree. Untracked files intentionally excluded.
  const stashResult = await execFileNoThrowWithCwd(
    gitExe(),
    ['stash', 'create'],
    { cwd: gitRoot, abortSignal: opts?.signal },
  )
  // exit 0 + empty stdout = nothing to stash. Nonzero is rare; non-fatal.
  const wipStashSha = stashResult.code === 0 ? stashResult.stdout.trim() : ''
  const hasWip = wipStashSha !== ''
  if (stashResult.code !== 0) {
    logForDebugging(
      `[gitBundle] git stash create failed (${stashResult.code}), proceeding without WIP: ${stashResult.stderr.slice(0, 200)}`,
    )
  } else if (hasWip) {
    logForDebugging(`[gitBundle] Captured WIP as stash ${wipStashSha}`)
    // env-runner reads the SHA via bundle list-heads refs/seed/stash.
    await execFileNoThrowWithCwd(
      gitExe(),