#1885: gitpoller.py fails in when FETCH_HEAD points to an unexpected branch
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Reporter: kostja | Owner:
Type: undecided | Status: new
Priority: major | Milestone: undecided
Version: 0.8.3p1 | Keywords: git, change_source
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gitpoller.py still sometimes fails with this error:
gitpoller: repo poll failed: [Failure instance: Traceback:
exceptions.EnvironmentError: call '['log', 'HEAD..FETCH_HEAD',
'--format=%H']' exited with error '128', output: ''
even though it was apparently fixed in 8.3-p1:
http://comments.gmane.org/gmane.comp.python.buildbot.devel/6676
The problem is, I suspect, in the fact that git fetch, without full branch
specification, fetches all branches, but makes FETCH_HEAD point to the
first branch *alphabetically*, and thus git log HEAD..FETCH_HEAD may
return not what gitpoller.py expects.
The problem is quite nasty, since Buildbot just stops making builds when
the repo that is being watched receives some new unmerged branch.
Right now I've installed gitpoller.py from the master, which has extended
diagnostics, and will wait for the problem to re-occur.
Note, that the bug goes away after a fresh install with the same
configuration, *and* after cleaning up/renaming branches in the remote
repo. The need for a fresh install comes, apparently, from the fact that
gitpoller.py leaves corrupted/garbage repositories around in case of an
exception (so please fix that too).
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Ticket URL: <http://trac.buildbot.net/ticket/1885>
Buildbot <http://buildbot.net/>
Buildbot: build/test automation
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