"""
Run.__init__(self, 'git', *cmd)
-class GitConflictException(GitException):
- def __init__(self, conflicts):
- GitException.__init__(self)
- self.conflicts = conflicts
- def __str__(self):
- return "%d conflicts" % len(self.conflicts)
- def list(self):
- out.info(*self.conflicts)
-
#
# Classes
#
'GITHEAD_%s' % head1: 'current',
'GITHEAD_%s' % head2: 'patched'}).returns([0, 1])
output = p.output_lines()
- if p.exitcode == 0:
- # No problems
- return
- else: # exitcode == 1
+ if p.exitcode:
# There were conflicts
conflicts = [l.strip() for l in output if l.startswith('CONFLICT')]
- raise GitConflictException(conflicts)
+ out.info(*conflicts)
-def merge(base, head1, head2):
- """Perform a 3-way merge between base, head1 and head2 into the
- local tree
- """
- refresh_index()
+ # try the interactive merge or stage checkout (if enabled)
+ for filename in get_conflicts():
+ if (gitmergeonefile.merge(filename)):
+ # interactive merge succeeded
+ resolved([filename])
- err_output = None
- # the fast case where we don't track renames (used when the
- # distance between base and heads is small, i.e. folding or
- # synchronising patches)
- try:
- GRun('read-tree', '-u', '-m', '--aggressive', base, head1, head2
- ).run()
- except GitRunException:
- raise GitException, 'read-tree failed (local changes maybe?)'
-
- # check the index for unmerged entries
- files = {}
- stages_re = re.compile('^([0-7]+) ([0-9a-f]{40}) ([1-3])\t(.*)$', re.S)
-
- for line in GRun('ls-files', '--unmerged', '--stage', '-z'
- ).raw_output().split('\0'):
- if not line:
- continue
-
- mode, hash, stage, path = stages_re.findall(line)[0]
-
- if not path in files:
- files[path] = {}
- files[path]['1'] = ('', '')
- files[path]['2'] = ('', '')
- files[path]['3'] = ('', '')
-
- files[path][stage] = (mode, hash)
-
- if err_output and not files:
- # if no unmerged files, there was probably a different type of
- # error and we have to abort the merge
- raise GitException, err_output
-
- # merge the unmerged files
- errors = False
- for path in files:
- # remove additional files that might be generated for some
- # newer versions of GIT
- for suffix in [base, head1, head2]:
- if not suffix:
- continue
- fname = path + '~' + suffix
- if os.path.exists(fname):
- os.remove(fname)
-
- stages = files[path]
- if gitmergeonefile.merge(stages['1'][1], stages['2'][1],
- stages['3'][1], path, stages['1'][0],
- stages['2'][0], stages['3'][0]) != 0:
- errors = True
-
- if errors:
- raise GitException, 'GIT index merging failed (possible conflicts)'
+ # any conflicts left unsolved?
+ cn = len(get_conflicts())
+ if cn:
+ raise GitException, "%d conflict(s)" % cn
def diff(files = None, rev1 = 'HEAD', rev2 = None, diff_flags = [],
binary = True):
if not files:
__set_head(tree_id)
+def resolved(filenames, reset = None):
+ if reset:
+ stage = {'ancestor': 1, 'current': 2, 'patched': 3}[reset]
+ GRun('checkout-index', '--no-create', '--stage=%d' % stage,
+ '--stdin', '-z').input_nulterm(filenames).no_output()
+ GRun('update-index', '--add', '--').xargs(filenames)
+ for filename in filenames:
+ gitmergeonefile.clean_up(filename)
+ # update the access and modificatied times
+ os.utime(filename, None)
+
def fetch(repository = 'origin', refspec = None):
"""Fetches changes from the remote repository, using 'git fetch'
by default.
top = commit(message = 'temporary commit used for applying a patch',
parents = [base])
switch(orig_head)
- merge(base, orig_head, top)
+ merge_recursive(base, orig_head, top)
def clone(repository, local_dir):
"""Clone a remote repository. At the moment, just use the
#
# Options
#
-merger = ConfigOption('stgit', 'merger')
+autoimerge = ConfigOption('stgit', 'autoimerge')
keeporig = ConfigOption('stgit', 'keeporig')
#
class MRun(Run):
exc = GitMergeException # use a custom exception class on errors
-def __checkout_files(orig_hash, file1_hash, file2_hash,
- path,
- orig_mode, file1_mode, file2_mode):
- """Check out the files passed as arguments
+def __checkout_stages(filename):
+ """Check-out the merge stages in the index for the give file
"""
- global orig, src1, src2
-
extensions = file_extensions()
+ line = MRun('git', 'checkout-index', '--stage=all', '--', filename
+ ).output_one_line()
+ stages, path = line.split('\t')
+ stages = dict(zip(['ancestor', 'current', 'patched'],
+ stages.split(' ')))
+
+ for stage, fn in stages.iteritems():
+ if stages[stage] == '.':
+ stages[stage] = None
+ else:
+ newname = filename + extensions[stage]
+ if os.path.exists(newname):
+ # remove the stage if it is already checked out
+ os.remove(newname)
+ os.rename(stages[stage], newname)
+ stages[stage] = newname
- if orig_hash:
- orig = path + extensions['ancestor']
- tmp = MRun('git', 'unpack-file', orig_hash).output_one_line()
- os.chmod(tmp, int(orig_mode, 8))
- os.renames(tmp, orig)
- if file1_hash:
- src1 = path + extensions['current']
- tmp = MRun('git', 'unpack-file', file1_hash).output_one_line()
- os.chmod(tmp, int(file1_mode, 8))
- os.renames(tmp, src1)
- if file2_hash:
- src2 = path + extensions['patched']
- tmp = MRun('git', 'unpack-file', file2_hash).output_one_line()
- os.chmod(tmp, int(file2_mode, 8))
- os.renames(tmp, src2)
-
- if file1_hash and not os.path.exists(path):
- # the current file might be removed by GIT when it is a new
- # file added in both branches. Just re-generate it
- tmp = MRun('git', 'unpack-file', file1_hash).output_one_line()
- os.chmod(tmp, int(file1_mode, 8))
- os.renames(tmp, path)
+ return stages
-def __remove_files(orig_hash, file1_hash, file2_hash):
- """Remove any temporary files
+def __remove_stages(filename):
+ """Remove the merge stages from the working directory
"""
- if orig_hash:
- os.remove(orig)
- if file1_hash:
- os.remove(src1)
- if file2_hash:
- os.remove(src2)
+ extensions = file_extensions()
+ for ext in extensions.itervalues():
+ fn = filename + ext
+ if os.path.isfile(fn):
+ os.remove(fn)
-def __conflict(path):
- """Write the conflict file for the 'path' variable and exit
+def interactive_merge(filename):
+ """Run the interactive merger on the given file. Stages will be
+ removed according to stgit.keeporig. If successful and stages
+ kept, they will be removed via git.resolved().
"""
- append_string(os.path.join(basedir.get(), 'conflicts'), path)
-
+ stages = __checkout_stages(filename)
-def interactive_merge(filename):
- """Run the interactive merger on the given file."""
try:
- extensions = file_extensions()
- line = MRun('git', 'checkout-index', '--stage=all', '--', filename
- ).output_one_line()
- stages, path = line.split('\t')
- stages = dict(zip(['ancestor', 'current', 'patched'],
- stages.split(' ')))
- for stage, fn in stages.iteritems():
- if stages[stage] == '.':
- stages[stage] = None
- else:
- newname = filename + extensions[stage]
- if not os.path.exists(newname):
- os.rename(stages[stage], newname)
- stages[stage] = newname
-
# Check whether we have all the files for the merge.
if not (stages['current'] and stages['patched']):
raise GitMergeException('Cannot run the interactive merge')
if mtime == os.path.getmtime(filename):
raise GitMergeException, 'The "%s" file was not modified' % filename
finally:
- for fn in stages.itervalues():
- if os.path.isfile(fn):
- os.remove(fn)
+ # keep the merge stages?
+ if str(keeporig) != 'yes':
+ __remove_stages(filename)
-#
-# Main algorithm
-#
-def merge(orig_hash, file1_hash, file2_hash,
- path,
- orig_mode, file1_mode, file2_mode):
- """Three-way merge for one file algorithm
+def clean_up(filename):
+ """Remove merge conflict stages if they were generated.
"""
- __checkout_files(orig_hash, file1_hash, file2_hash,
- path,
- orig_mode, file1_mode, file2_mode)
-
- # file exists in origin
- if orig_hash:
- # modified in both
- if file1_hash and file2_hash:
- # if modes are the same (git-read-tree probably dealt with it)
- if file1_hash == file2_hash:
- if os.system('git update-index --cacheinfo %s %s %s'
- % (file1_mode, file1_hash, path)) != 0:
- out.error('git update-index failed')
- __conflict(path)
- return 1
- if os.system('git checkout-index -u -f -- %s' % path):
- out.error('git checkout-index failed')
- __conflict(path)
- return 1
- if file1_mode != file2_mode:
- out.error('File added in both, permissions conflict')
- __conflict(path)
- return 1
- # 3-way merge
- else:
- merge_ok = os.system(str(merger) % {'branch1': src1,
- 'ancestor': orig,
- 'branch2': src2,
- 'output': path }) == 0
-
- if merge_ok:
- os.system('git update-index -- %s' % path)
- __remove_files(orig_hash, file1_hash, file2_hash)
- return 0
- else:
- out.error('Three-way merge tool failed for file "%s"'
- % path)
- # reset the cache to the first branch
- os.system('git update-index --cacheinfo %s %s %s'
- % (file1_mode, file1_hash, path))
+ if str(keeporig) == 'yes':
+ __remove_stages(filename)
- if config.get('stgit.autoimerge') == 'yes':
- try:
- interactive_merge(path)
- except GitMergeException, ex:
- # interactive merge failed
- out.error(str(ex))
- if str(keeporig) != 'yes':
- __remove_files(orig_hash, file1_hash,
- file2_hash)
- __conflict(path)
- return 1
- # successful interactive merge
- os.system('git update-index -- %s' % path)
- __remove_files(orig_hash, file1_hash, file2_hash)
- return 0
- else:
- # no interactive merge, just mark it as conflict
- if str(keeporig) != 'yes':
- __remove_files(orig_hash, file1_hash, file2_hash)
- __conflict(path)
- return 1
-
- # file deleted in both or deleted in one and unchanged in the other
- elif not (file1_hash or file2_hash) \
- or file1_hash == orig_hash or file2_hash == orig_hash:
- if os.path.exists(path):
- os.remove(path)
- __remove_files(orig_hash, file1_hash, file2_hash)
- return os.system('git update-index --remove -- %s' % path)
- # file deleted in one and changed in the other
- else:
- # Do something here - we must at least merge the entry in
- # the cache, instead of leaving it in U(nmerged) state. In
- # fact, stg resolved does not handle that.
-
- # Do the same thing cogito does - remove the file in any case.
- os.system('git update-index --remove -- %s' % path)
-
- #if file1_hash:
- ## file deleted upstream and changed in the patch. The
- ## patch is probably going to move the changes
- ## elsewhere.
-
- #os.system('git update-index --remove -- %s' % path)
- #else:
- ## file deleted in the patch and changed upstream. We
- ## could re-delete it, but for now leave it there -
- ## and let the user check if he still wants to remove
- ## the file.
-
- ## reset the cache to the first branch
- #os.system('git update-index --cacheinfo %s %s %s'
- # % (file1_mode, file1_hash, path))
- __conflict(path)
- return 1
-
- # file does not exist in origin
- else:
- # file added in both
- if file1_hash and file2_hash:
- # files are the same
- if file1_hash == file2_hash:
- if os.system('git update-index --add --cacheinfo %s %s %s'
- % (file1_mode, file1_hash, path)) != 0:
- out.error('git update-index failed')
- __conflict(path)
- return 1
- if os.system('git checkout-index -u -f -- %s' % path):
- out.error('git checkout-index failed')
- __conflict(path)
- return 1
- if file1_mode != file2_mode:
- out.error('File "s" added in both, permissions conflict'
- % path)
- __conflict(path)
- return 1
- # files added in both but different
- else:
- out.error('File "%s" added in branches but different' % path)
- # reset the cache to the first branch
- os.system('git update-index --cacheinfo %s %s %s'
- % (file1_mode, file1_hash, path))
-
- if config.get('stgit.autoimerge') == 'yes':
- try:
- interactive_merge(path)
- except GitMergeException, ex:
- # interactive merge failed
- out.error(str(ex))
- if str(keeporig) != 'yes':
- __remove_files(orig_hash, file1_hash,
- file2_hash)
- __conflict(path)
- return 1
- # successful interactive merge
- os.system('git update-index -- %s' % path)
- __remove_files(orig_hash, file1_hash, file2_hash)
- return 0
- else:
- # no interactive merge, just mark it as conflict
- if str(keeporig) != 'yes':
- __remove_files(orig_hash, file1_hash, file2_hash)
- __conflict(path)
- return 1
- # file added in one
- elif file1_hash or file2_hash:
- if file1_hash:
- mode = file1_mode
- obj = file1_hash
- else:
- mode = file2_mode
- obj = file2_hash
- if os.system('git update-index --add --cacheinfo %s %s %s'
- % (mode, obj, path)) != 0:
- out.error('git update-index failed')
- __conflict(path)
- return 1
- __remove_files(orig_hash, file1_hash, file2_hash)
- return os.system('git checkout-index -u -f -- %s' % path)
-
- # Unhandled case
- out.error('Unhandled merge conflict: "%s" "%s" "%s" "%s" "%s" "%s" "%s"'
- % (orig_hash, file1_hash, file2_hash,
- path,
- orig_mode, file1_mode, file2_mode))
- __conflict(path)
- return 1
+def merge(filename):
+ """Merge one file if interactive is allowed or check out the stages
+ if keeporig is set.
+ """
+ if str(autoimerge) == 'yes':
+ try:
+ interactive_merge(filename)
+ except GitMergeException, ex:
+ out.error(str(ex))
+ return False
+ return True
+
+ if str(keeporig) == 'yes':
+ __checkout_stages(filename)
+
+ return False
~mdw / stgit / commitdiff