From: Owen Stephens <git@owenstephens.co.uk>
Date: Wed, 17 Aug 2011 16:21:34 GMT
Subject: Malformed branch name in fast-export when specifying non-HEAD/branch revision
Message-ID: <CAORuUR154Dhg5vDojga-01bDxxf+=R2X-oJK-0417CgmqxCwvA@mail.gmail.com>
In-Reply-To: <CAORuUR1viqG27+dYOFS_5SLxFOE2wHJqAQ3i3RByg_fbWACh-Q@mail.gmail.com>

Hi,

fast-export gives an invalid branch name for commits, if the revision specified
is not HEAD or a branch name.

$ git --version
git version 1.7.6

$ # Create
$ git init export_test && cd export_test
$ touch a && git add a && git commit -m 'Add a'
$ touch b && git add b && git commit -m 'Add b'
$ git branch branch1

$ # ok
$ git fast-export HEAD

$ # also ok
$ git fast-export branch1

$ # uses HEAD~1 instead of refs/heads/master
$ git fast-export HEAD~1

blob
mark :1
data 0

reset HEAD~1
commit HEAD~1
mark :2
author Owen Stephens <git@owenstephens.co.uk> 1313597436 +0100
committer Owen Stephens <git@owenstephens.co.uk> 1313597436 +0100
data 6
Add a
M 100644 :1 a

$ # Uses the commit hash rather than refs/heads/master
$ git fast-export $(git rev-parse HEAD~1)

blob
mark :1
data 0

reset 5a8a8abb1ab44890501c64f2d51f671ab2108d60
commit 5a8a8abb1ab44890501c64f2d51f671ab2108d60
mark :2
author Owen Stephens <git@owenstephens.co.uk> 1313597436 +0100
committer Owen Stephens <git@owenstephens.co.uk> 1313597436 +0100
data 6
Add a
M 100644 :1 a

$ # fast-import cannot handle this stream:
$ git init subgit
$ git fast-export HEAD~1 | (cd subgit/ && git fast-import)
fatal: Branch name doesn't conform to GIT standards: HEAD~1
fast-import: dumping crash report to .git/fast_import_crash_26863

Regards,
Owen.