1818
90%
master: 91%

Ran 29 Sep 2019 04:48AM UTC

Jobs 3

Files 402

Run time 26s

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Build # 1818

Build Type

push

travis-ci

Committed by

sds

Commit Message

Avoid stashing changes when all changes are staged

It was suggested in #135 that a potential way to avoid unnecessary file
change detection and general stashing woes would be to stash changes
only when there were unstaged changes that needed to be excluded from
the run.

This presents a nice optimization that I wish we had considered so long
ago. This gives us the opportunity to simplify the logic now that we see
the purpose of this feature a little more clearly: stash only when you
need to.

Issue #669 raised an interesting point about the difficulty to detect if
a stash entry was created, so we modified the tests to check if a method
call was made. This isn't great as its peeking deep into the
implementation, so we added some additional tests that ensured the
methods in question actually existed. Not perfect, but gives us some
confidence in the implementation.

While here, we were able to:

* Extract the stashing logic into a separate `stash_changes` helper
  method.

* Eliminate the `initial_commit?` check, since in the case of an empty
  it's impossible to see any "unstaged" tracked files, as there aren't
  yet any tracked files by definition.

* Simplify the `cleanup_environment` logic to just use whether changes
  were stashed in order to decide whether to restore.

Closes #669.

Run Details

5923 of 6554 relevant lines covered (90.37%)

378.09 hits per line

Jobs

ID	Job ID	Ran	Coverage
1	1818.1 (2.4)	29 Sep 2019 04:48AM UTC	90.39	Travis Job 1818.1
2	1818.2 (2.5)	29 Sep 2019 04:48AM UTC	90.37	Travis Job 1818.2
3	1818.3 (2.6)	29 Sep 2019 04:48AM UTC	90.37	Travis Job 1818.3

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