RFR: 92: GitRepository::currentBranch fails when on a detached HEAD

[Robin Westberg]

On Fri, 29 Nov 2019 11:27:22 GMT, Robin Westberg <rwestberg at openjdk.org> wrote:

> On Thu, 28 Nov 2019 15:10:50 GMT, Erik Helin <ehelin at openjdk.org> wrote:
> 
>> Hi all,
>> 
>> please review this pull request that makes `git webrev` work when the repository is in a "detached HEAD" state (i.e. there is no active branch). The main part of the change is making `ReadOnlyRepository::currentBranch` return `Optional<Branch>` instead of `Branch`.
>> 
>> Thanks,
>> Erik
>> 
>> ## Testing
>> - [x] `make test` on Linux x64
>> - [x] Manually running `git webrev` on a repository with a detached HEAD
>> 
>> ----------------
>> 
>> Commits:
>>  - 3dc4fea9: 92: GitRepository::currentBranch fails when on a detached HEAD
>> 
>> Changes: https://git.openjdk.java.net/skara/pull/278/files
>>  Webrev: https://webrevs.openjdk.java.net/skara/278/webrev.00
>>   Issue: https://bugs.openjdk.java.net/browse/SKARA-92
>>   Stats: 40 lines in 8 files changed: 16 ins; 2 del; 22 mod
>>   Patch: https://git.openjdk.java.net/skara/pull/278.diff
>>   Fetch: git fetch https://git.openjdk.java.net/skara pull/278/head:pull/278
> 
> vcs/src/main/java/org/openjdk/skara/vcs/hg/HgRepository.java line 603:
> 
>> 602:         var current = currentBranch().orElseThrow(() ->
>> 603:                 new IOException("No current branch to rebase upon")
>> 604:         );
> 
> Should this mention the detached head then as well perhaps?

Scratch that, guess this is hg :)

PR: https://git.openjdk.java.net/skara/pull/278