* after merge, switch to base branch if available
* Add ability to checkout new branch
* Style cleanup
Co-authored-by: Sam Coe <samcoe@users.noreply.github.com>
This status describes a state where the head branch is mergeable and
technically not blocked per base branch requirements, but it does have
non-passing checks.
Conditions prohibiting a regular merge: BLOCKED, BEHIND, DIRTY.
Conditions triggering a regular merge even if `--auto` was set: CLEAN,
HAS_HOOKS.
Note that UNKNOWN status does not trigger either of the conditions.
When passing `--auto` flag, only schedule an auto-merge if
the `mergeStateStatus` field is "BLOCKED".
This ensures that a PR will always be merged when passing `--auto` even
if it doesn't have required checks or if checks have already passed.
This avoids loading authorship information for git commits, since it
relies on a GraphQL API that wasn't available before GHE v3.0. The
authorship information wasn't necessary for the merge operation anyway;
just loading the last commit OID was.
This completely rewrites the PR lookup mechanism so that the caller
must specify the GraphQL fields to query for each PR. Additionally, this
fixes some export problems with `pr view --json`.
Features:
- Each pr command now gets assigned a concept of a Finder. This makes it
easier to stub the PR in tests without having to stub the underlying
HTTP calls or git invocations.
- `pr view --web` is much faster since it only fetches the "url" field.
- `pr diff 123` now skips a whole API call where a whole PR was
unnecessarily preloaded just to access its diff in a subsequent call.
- PullRequestGraphQL query builder is now used to construct queries.
- A bunch of individual commands are now freed of having to know about
concepts such as BaseRepo, Branch, Config, or Remotes.
