systemic gap argus flagged on PR #798 (timeline verb). every `pub fn
run` in hive-forge/src/verbs/*.rs lacked a `# Errors` block —
violates Rust API guidelines + obscures the failure surface for
operators reading the source.
uniform doc per verb category:
- pure GET + print verbs: "transport error from the Forgejo REST call
+ I/O error from stdout"
- body-from-file verbs (comment/comment_edit/issue_create/issue_edit/
pr_create): adds 'I/O error from --body-file/stdin input'
- file-upload verbs (attach-issue, attach-comment): adds 'file
read/exist check'
- pr_create: also mentions the --push shellout
23 `pub fn run` signatures touched. no behaviour change; pure
documentation sweep. cargo test green (38 tests).
was: `print_event` did the format + println inline; tests had a
parallel `captured` helper that re-implemented the dispatch and only
covered 4 of 14 event types. brittle — a new arm in `print_event`
silently went uncovered.
now: pure `format_event(ev: &Value) -> String` builds the line;
`print_event` is a thin wrapper that adds the trailing newline.
tests assert on `format_event` output directly so every new arm
gets test coverage by construction.
bonus: added 3 more test cases (assignees add/remove, pull_push
commit count + force-push, commit_ref sha truncation) since the
helper extraction made them cheap. 9 tests total, all green.
last unstarted piece of the original #694 epic. agents kept falling
back to curl for 'who closed this?' / 'when was this labelled?'
archaeology because view + comments only surface the body + comments,
not the structured timeline events (label adds, assignments, closes,
reopens, pushes, commit refs, review submissions, milestone changes).
separate verb rather than view --timeline because:
- composes naturally with view <n> / comments <n>
- keeps existing verb output shapes stable (no script breakage)
- argus on #770 already noted view's output is busy
human-readable by default ('**actor @ ts**: <summary>'), --json for
raw piping. unknown event types fall through to a '[<type>]'
placeholder so a forge schema bump doesn't panic the verb.
--tail N is a follow-up: timeline endpoint doesn't expose a total-count
field so the count-then-page strategy from #770 doesn't apply
directly.
6 tests cover comment / label add/remove / close / unknown-type
placeholder / missing-user fallback.
