# Address PR review on trail checkout

`feea8fe`→[main](/content/gh/entireio/cli/commits/main/index.html)·

matthiaswenz·4w ago·2 files·+14 added/-6 removed

- Label the empty-branch error via describeTrailRef so a numbered trail
with no title no longer renders as `trail "" has no branch`.
- Print an explicit cancellation line when the user declines fetching a
remote-only branch, so the preceding "Checking out …" doesn't read as a
successful switch.
- Copy the table-test input into a local before taking its address in the
parallel subtest.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

## Sessions

5aba9c537ceaView transcript

## Changes

2

- cmd/entire/cli

- Mtrail_checkout_cmd_test.go+5/-2

- Mtrail_cmd.go+9/-4

```
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for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			t.Parallel()
			got := describeTrailRef(&tc.in)
			// Copy the input into a local so the parallel subtest never takes the
			// address of the shared range variable.
			in := tc.in
			got := describeTrailRef(&in)
			if got != tc.want {
				t.Fatalf("describeTrailRef(%#v) = %q, want %q", tc.in, got, tc.want)
				t.Fatalf("describeTrailRef(%#v) = %q, want %q", in, got, tc.want)
			}
		})
	}
```

Mcmd/entire/cli/trail_checkout_cmd_test.go+5/-2

```
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branch := strings.TrimSpace(found.Branch)
		if branch == "" {
			return fmt.Errorf("trail %q has no branch to check out", found.Title)
			return fmt.Errorf("%s has no branch to check out", describeTrailRef(found))
		}

currentBranch, _ := GetCurrentBranch(ctx) //nolint:errcheck // best-effort; a detached HEAD just means "not already on the branch"
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fmt.Fprintf(w, "Checking out %s\n", describeTrailRef(found))
		// switchToBranchForResume handles local vs. remote-only branches, the
		// uncommitted-changes guard, and the fetch prompt; reuse it rather than
		// re-deriving that logic here. proceed=false (user declined the
		// fetch) is a clean stop, not an error.
		// re-deriving that logic here.
		proceed, err := switchToBranchForResume(ctx, w, errW, branch, force)
		if err != nil || !proceed {
			if err != nil {
				return err
			}
			if !proceed {
				// The user declined to fetch a remote-only branch — a clean stop, not
				// an error. Say so explicitly so the preceding "Checking out …" line
				// doesn't read as a successful switch.
				fmt.Fprintf(w, "Checkout of branch %s cancelled.\n", branch)
			}
			return nil
		})
}
```

Mcmd/entire/cli/trail_cmd.go+9/-4