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CLI/git: add reset command
Sometimes merging is not what we want with tags; in particular it tends to keep tags in the local repo that have been removed elsewhere. This commit provides a new reset command; the reset itself is trivial, but the work is to provide a safety check that uses the existing --force and git.safe_fraction machinery.
This commit is contained in:
David Bremner
parent
6b9fccb2e2
commit
30740296e7
2 changed files with 80 additions and 3 deletions
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@ -368,7 +368,7 @@ class CachedIndex:
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_git(args=['read-tree', self.current_treeish], wait=True)
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def check_safe_fraction(status):
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def _check_fraction(change):
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safe = 0.1
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conf = _notmuch_config_get ('git.safe_fraction')
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if conf and conf != '':
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@ -379,7 +379,7 @@ def check_safe_fraction(status):
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_LOG.error('No existing tags with given prefix, stopping.')
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_LOG.error('Use --force to override.')
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exit(1)
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change = len(status['added'])+len(status['deleted'])
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fraction = change/total
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_LOG.debug('total messages {:d}, change: {:d}, fraction: {:f}'.format(total,change,fraction))
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if fraction > safe:
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@ -387,6 +387,25 @@ def check_safe_fraction(status):
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_LOG.error('Use --force to override or reconfigure git.safe_fraction.')
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exit(1)
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def check_safe_fraction(status):
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change = len(status['added'])+len(status['deleted'])
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_check_fraction(change)
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def check_diff_fraction():
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# check number of directories (i.e. messages) changed.
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change_set = set()
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with _git(args=['diff', '--name-only', 'HEAD', '@{upstream}'],
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stdout=_subprocess.PIPE) as git:
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for path in git.stdout:
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change_set.add(_os.path.dirname(path))
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change=len(change_set)
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_check_fraction(change)
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def commit(treeish='HEAD', message=None, force=False):
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"""
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Commit prefix-matching tags from the notmuch database to Git.
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@ -619,6 +638,15 @@ def push(repository=None, refspecs=None):
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_git(args=args, wait=True)
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def reset(force=False):
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"""
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reset the local git branch to match the remote one
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"""
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if not force:
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check_diff_fraction()
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_git(args=["reset","--soft","origin/master"],wait=True)
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def status():
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"""
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Show pending updates in notmuch or git repo.
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@ -1047,6 +1075,7 @@ if __name__ == '__main__':
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'merge',
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'pull',
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'push',
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'reset',
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'status',
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]:
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func = locals()[command]
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@ -1141,6 +1170,10 @@ if __name__ == '__main__':
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'Refspec (usually a branch name) to push. See '
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'the <refspec> entry in the OPTIONS section of '
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'git-push(1) for other possibilities.'))
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elif command == 'reset':
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subparser.add_argument(
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'-f', '--force', action='store_true',
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help='reset a large fraction of tags.')
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args = parser.parse_args()
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@ -213,6 +213,51 @@ cat <<EOF > EXPECTED
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EOF
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test_expect_equal_file EXPECTED OUTPUT
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test_begin_subtest "reset"
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notmuch git -C reset.git -p '' clone remote.git
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notmuch git -C reset.git checkout --force
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notmuch tag +test4 id:20091117190054.GU3165@dottiness.seas.harvard.edu
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notmuch git -C remote.git commit --force
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notmuch tag -test4 id:20091117190054.GU3165@dottiness.seas.harvard.edu
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notmuch git -C reset.git fetch
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notmuch git -C reset.git reset
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notmuch git -C reset.git checkout --force
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notmuch dump id:20091117190054.GU3165@dottiness.seas.harvard.edu | grep -v '^#' > OUTPUT
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cat <<EOF > EXPECTED
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+inbox +signed +test2 +test3 +test4 +unread -- id:20091117190054.GU3165@dottiness.seas.harvard.edu
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EOF
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test_expect_equal_file EXPECTED OUTPUT
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test_begin_subtest "reset (require force for large change)"
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notmuch git -C reset2.git -p '' clone remote.git
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notmuch git -C reset2.git checkout --force
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notmuch tag +test5 '*'
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notmuch git -C remote.git commit --force
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notmuch tag -test5 '*'
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notmuch git -C reset2.git fetch
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test_expect_code 1 "notmuch git -C reset2.git -l debug reset"
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test_begin_subtest "reset (don't require force for large change to one message)"
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notmuch git -C reset3.git -p '' clone remote.git
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notmuch git -C reset3.git checkout --force
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notmuch dump id:20091117190054.GU3165@dottiness.seas.harvard.edu > BEFORE
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for tag in $(seq 1 100); do
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notmuch tag +$tag id:20091117190054.GU3165@dottiness.seas.harvard.edu
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done
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notmuch git -C remote.git commit --force
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notmuch restore < BEFORE
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notmuch git -C reset3.git fetch
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test_expect_code 0 "notmuch git -C reset3.git -l debug reset"
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test_begin_subtest "reset --force"
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notmuch git -C reset4.git -p '' clone remote.git
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notmuch git -C reset4.git checkout --force
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notmuch tag +test6 '*'
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notmuch git -C remote.git commit --force
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notmuch tag -test6 '*'
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notmuch git -C reset4.git fetch
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test_expect_code 0 "notmuch git -C reset4.git -l debug reset --force"
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test_begin_subtest "environment passed through when run as 'notmuch git'"
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env NOTMUCH_GIT_DIR=foo NOTMUCH_GIT_PREFIX=bar NOTMUCH_PROFILE=default notmuch git -C tags.git -p '' -ldebug status |& \
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grep '^env ' | notmuch_dir_sanitize > OUTPUT
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@ -311,7 +356,6 @@ prefix = env::
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EOF
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test_expect_equal_file EXPECTED OUTPUT
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test_begin_subtest "init, xdg default location"
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repo=home/.local/share/notmuch/default/git
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notmuch git -ldebug init |& grep '^repository' | notmuch_dir_sanitize > OUTPUT
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