def pop_patch(self, name, keep=False):
"""Pops the top patch from the stack
"""
applied = self.get_applied()
applied.reverse()
assert(name in applied)
patch = self.get_patch(name)
if git.get_head_file() == self.get_name():
if keep and not git.apply_diff(git.get_head(), patch.get_bottom(),
check_index=False):
raise StackException(
'Failed to pop patches while preserving the local changes')
git.switch(patch.get_bottom(), keep)
else:
git.set_branch(self.get_name(), patch.get_bottom())
# save the new applied list
idx = applied.index(name) + 1
popped = applied[:idx]
popped.reverse()
unapplied = popped + self.get_unapplied()
write_strings(self.__unapplied_file, unapplied)
del applied[:idx]
applied.reverse()
write_strings(self.__applied_file, applied)
def push_patch(self, name, empty=False):
"""Pushes a patch on the stack
"""
unapplied = self.get_unapplied()
assert (name in unapplied)
patch = Patch(name, self.__patch_dir, self.__refs_dir)
head = git.get_head()
bottom = patch.get_bottom()
top = patch.get_top()
ex = None
modified = False
# top != bottom always since we have a commit for each patch
if empty:
# just make an empty patch (top = bottom = HEAD). This
# option is useful to allow undoing already merged
# patches. The top is updated by refresh_patch since we
# need an empty commit
patch.set_bottom(head, backup=True)
patch.set_top(head, backup=True)
modified = True
elif head == bottom:
# reset the backup information. No need for logging
patch.set_bottom(bottom, backup=True)
patch.set_top(top, backup=True)
git.switch(top)
else:
# new patch needs to be refreshed.
# The current patch is empty after merge.
patch.set_bottom(head, backup=True)
patch.set_top(head, backup=True)
# Try the fast applying first. If this fails, fall back to the
# three-way merge
if not git.apply_diff(bottom, top):
# if git.apply_diff() fails, the patch requires a diff3
# merge and can be reported as modified
modified = True
# merge can fail but the patch needs to be pushed
try:
git.merge(bottom, head, top, recursive=True)
except git.GitException, ex:
out.error(
'The merge failed during "push".',
'Use "refresh" after fixing the conflicts or'
' revert the operation with "push --undo".')
def merged_patches(self, names):
"""Test which patches were merged upstream by reverse-applying
them in reverse order. The function returns the list of
patches detected to have been applied. The state of the tree
is restored to the original one
"""
patches = [self.get_patch(name) for name in names]
patches.reverse()
merged = []
for p in patches:
if git.apply_diff(p.get_top(), p.get_bottom()):
merged.append(p.get_name())
merged.reverse()
git.reset()
return merged
def __pick_commit(commit_id, patchname, options):
"""Pick a commit id.
"""
commit = git.Commit(commit_id)
if options.name:
patchname = options.name
elif patchname and options.revert:
patchname = 'revert-' + patchname
if patchname:
patchname = find_patch_name(patchname, crt_series.patch_exists)
if options.parent:
parent = git_id(crt_series, options.parent)
else:
parent = commit.get_parent()
if not options.revert:
bottom = parent
top = commit_id
else:
bottom = commit_id
top = parent
if options.fold:
out.start('Folding commit %s' % commit_id)
# try a direct git apply first
if not git.apply_diff(bottom, top, files=options.file):
if options.file:
raise CmdException('Patch folding failed')
else:
git.merge_recursive(bottom, git.get_head(), top)
out.done()
elif options.update:
rev1 = git_id(crt_series, 'HEAD^')
rev2 = git_id(crt_series, 'HEAD')
files = git.barefiles(rev1, rev2).split('\n')
out.start('Updating with commit %s' % commit_id)
if not git.apply_diff(bottom, top, files=files):
raise CmdException('Patch updating failed')
out.done()
else:
message = commit.get_log()
if options.revert:
if message:
lines = message.splitlines()
subject = lines[0]
body = '\n'.join(lines[2:])
else:
subject = commit.get_id_hash()
body = ''
message = 'Revert "%s"\n\nThis reverts commit %s.\n\n%s\n' % (
subject, commit.get_id_hash(), body)
elif options.expose:
if not message.endswith('\n'):
message += '\n'
message += '(imported from commit %s)\n' % commit.get_id_hash()
(author_name, author_email,
author_date) = name_email_date(commit.get_author())
if options.revert:
author_name = author_email = None
out.start('Importing commit %s' % commit_id)
newpatch = crt_series.new_patch(
patchname,
message=message,
can_edit=False,
unapplied=True,
bottom=bottom,
top=top,
author_name=author_name,
author_email=author_email,
author_date=author_date,
)
# in case the patch name was automatically generated
patchname = newpatch.get_name()
# find a patchlog to fork from
refbranchname, refpatchname = parse_rev(patchname)
if refpatchname:
if refbranchname:
# assume the refseries is OK, since we already resolved
# commit_str to a git_id
refseries = Series(refbranchname)
else:
refseries = crt_series
patch = refseries.get_patch(refpatchname)
if patch.get_log():
out.info("Log was %s" % newpatch.get_log())
out.info("Setting log to %s\n" % patch.get_log())
newpatch.set_log(patch.get_log())
out.info("Log is now %s" % newpatch.get_log())
else:
out.info("No log for %s\n" % patchname)
if not options.unapplied:
modified = crt_series.push_patch(patchname)
else:
modified = False
if crt_series.empty_patch(patchname):
out.done('empty patch')
elif modified:
out.done('modified')
else:
out.done()
def push_patch(self, name):
"""Pushes a patch on the stack
"""
unapplied = self.get_unapplied()
assert(name in unapplied)
patch = self.get_patch(name)
head = git.get_head()
bottom = patch.get_bottom()
top = patch.get_top()
# top != bottom always since we have a commit for each patch
if head == bottom:
# A fast-forward push. Just reset the backup
# information. No need for logging
patch.set_top(top, backup=True)
git.switch(top)
append_string(self.__applied_file, name)
unapplied.remove(name)
write_strings(self.__unapplied_file, unapplied)
return False
# Need to create a new commit an merge in the old patch
ex = None
modified = False
# Try the fast applying first. If this fails, fall back to the
# three-way merge
if not git.apply_diff(bottom, top):
# if git.apply_diff() fails, the patch requires a diff3
# merge and can be reported as modified
modified = True
# merge can fail but the patch needs to be pushed
try:
git.merge_recursive(bottom, head, top)
except git.GitException:
out.error('The merge failed during "push".',
'Revert the operation with "stg undo".')
append_string(self.__applied_file, name)
unapplied.remove(name)
write_strings(self.__unapplied_file, unapplied)
if not ex:
# if the merge was OK and no conflicts, just refresh the patch
# The GIT cache was already updated by the merge operation
if modified:
log = 'push(m)'
else:
log = 'push'
self.refresh_patch(bottom=head, cache_update=False, log=log)
else:
# we make the patch empty, with the merged state in the
# working tree.
self.refresh_patch(
bottom=head,
cache_update=False,
empty=True,
log='push(c)',
)
raise StackException(str(ex))
return modified
def func(parser, options, args):
"""Import a commit object as a new patch
"""
if len(args) != 1:
parser.error('incorrect number of arguments')
if not options.unapplied:
check_local_changes()
check_conflicts()
check_head_top_equal()
commit_str = args[0]
commit_id = git_id(commit_str)
commit = git.Commit(commit_id)
if options.fold or options.update:
if not crt_series.get_current():
raise CmdException, 'No patches applied'
else:
patch_branch = commit_str.split('@')
if options.name:
patchname = options.name
elif len(patch_branch) == 2:
patchname = patch_branch[0]
else:
patchname = None
if options.parent:
parent = git_id(options.parent)
else:
parent = commit.get_parent()
if not options.reverse:
bottom = parent
top = commit_id
else:
bottom = commit_id
top = parent
if options.fold:
out.start('Folding commit %s' % commit_id)
# try a direct git-apply first
if not git.apply_diff(bottom, top):
git.merge(bottom, git.get_head(), top, recursive=True)
out.done()
elif options.update:
rev1 = git_id('//bottom')
rev2 = git_id('//top')
files = git.barefiles(rev1, rev2).split('\n')
out.start('Updating with commit %s' % commit_id)
if not git.apply_diff(bottom, top, files=files):
raise CmdException, 'Patch updating failed'
out.done()
else:
message = commit.get_log()
if options.expose:
message += '(imported from commit %s)\n' % commit.get_id_hash()
author_name, author_email, author_date = \
name_email_date(commit.get_author())
out.start('Importing commit %s' % commit_id)
newpatch = crt_series.new_patch(patchname,
message=message,
can_edit=False,
unapplied=True,
bottom=bottom,
top=top,
author_name=author_name,
author_email=author_email,
author_date=author_date)
# in case the patch name was automatically generated
patchname = newpatch.get_name()
# find a patchlog to fork from
(refpatchname, refbranchname, refpatchid) = parse_rev(commit_str)
if refpatchname and not refpatchid and \
(not refpatchid or refpatchid == 'top'):
# FIXME: should also support picking //top.old
if refbranchname:
# assume the refseries is OK, since we already resolved
# commit_str to a git_id
refseries = Series(refbranchname)
else:
refseries = crt_series
patch = refseries.get_patch(refpatchname)
if patch.get_log():
out.info("Log was %s" % newpatch.get_log())
out.info("Setting log to %s\n" % patch.get_log())
newpatch.set_log(patch.get_log())
out.info("Log is now %s" % newpatch.get_log())
else:
out.info("No log for %s\n" % patchname)
if not options.unapplied:
modified = crt_series.push_patch(patchname)
else:
modified = False
if crt_series.empty_patch(patchname):
out.done('empty patch')
elif modified:
out.done('modified')
else:
out.done()
print_crt_patch()
