import sys, os, re
from email.Utils import formatdate
+from stgit.exception import *
from stgit.utils import *
from stgit.out import *
+from stgit.run import *
from stgit import git, basedir, templates
from stgit.config import config
from shutil import copyfile
-
+from stgit.lib import git as libgit, stackupgrade
# stack exception class
-class StackException(Exception):
+class StackException(StgException):
pass
class FilterUntil:
elif os.path.isfile(fname):
os.remove(fname)
-
+
class Patch(StgitObject):
"""Basic patch implementation
"""
def create(self):
os.mkdir(self._dir())
- self.create_empty_field('bottom')
- self.create_empty_field('top')
-
- def delete(self):
- for f in os.listdir(self._dir()):
- os.remove(os.path.join(self._dir(), f))
- os.rmdir(self._dir())
- git.delete_ref(self.__top_ref)
- if git.ref_exists(self.__log_ref):
+
+ def delete(self, keep_log = False):
+ if os.path.isdir(self._dir()):
+ for f in os.listdir(self._dir()):
+ os.remove(os.path.join(self._dir(), f))
+ os.rmdir(self._dir())
+ else:
+ out.warn('Patch directory "%s" does not exist' % self._dir())
+ try:
+ # the reference might not exist if the repository was corrupted
+ git.delete_ref(self.__top_ref)
+ except git.GitException, e:
+ out.warn(str(e))
+ if not keep_log and git.ref_exists(self.__log_ref):
git.delete_ref(self.__log_ref)
def get_name(self):
def __update_top_ref(self, ref):
git.set_ref(self.__top_ref, ref)
+ self._set_field('top', ref)
+ self._set_field('bottom', git.get_commit(ref).get_parent())
def __update_log_ref(self, ref):
git.set_ref(self.__log_ref, ref)
- def update_top_ref(self):
- top = self.get_top()
- if top:
- self.__update_top_ref(top)
-
def get_old_bottom(self):
- return self._get_field('bottom.old')
+ return git.get_commit(self.get_old_top()).get_parent()
def get_bottom(self):
- return self._get_field('bottom')
-
- def set_bottom(self, value, backup = False):
- if backup:
- curr = self._get_field('bottom')
- self._set_field('bottom.old', curr)
- self._set_field('bottom', value)
+ return git.get_commit(self.get_top()).get_parent()
def get_old_top(self):
return self._get_field('top.old')
def get_top(self):
- return self._get_field('top')
+ return git.rev_parse(self.__top_ref)
def set_top(self, value, backup = False):
if backup:
- curr = self._get_field('top')
- self._set_field('top.old', curr)
- self._set_field('top', value)
+ curr_top = self.get_top()
+ self._set_field('top.old', curr_top)
+ self._set_field('bottom.old', git.get_commit(curr_top).get_parent())
self.__update_top_ref(value)
def restore_old_boundaries(self):
- bottom = self._get_field('bottom.old')
top = self._get_field('top.old')
- if top and bottom:
- self._set_field('bottom', bottom)
- self._set_field('top', top)
+ if top:
self.__update_top_ref(top)
return True
else:
self._set_field('log', value)
self.__update_log_ref(value)
-# The current StGIT metadata format version.
-FORMAT_VERSION = 2
-
class PatchSet(StgitObject):
def __init__(self, name = None):
try:
def is_initialised(self):
"""Checks if series is already initialised
"""
- return bool(config.get(self.format_version_key()))
+ return config.get(stackupgrade.format_version_key(self.get_name())
+ ) != None
def shortlog(patches):
- log = ''.join(Run('git-log', '--pretty=short',
+ log = ''.join(Run('git', 'log', '--pretty=short',
p.get_top(), '^%s' % p.get_bottom()).raw_output()
for p in patches)
- return Run('git-shortlog').raw_input(log).raw_output()
+ return Run('git', 'shortlog').raw_input(log).raw_output()
class Series(PatchSet):
"""Class including the operations on series
# Update the branch to the latest format version if it is
# initialized, but don't touch it if it isn't.
- self.update_to_current_format_version()
+ stackupgrade.update_to_current_format_version(
+ libgit.Repository.default(), self.get_name())
self.__refs_base = 'refs/patches/%s' % self.get_name()
# trash directory
self.__trash_dir = os.path.join(self._dir(), 'trash')
- def format_version_key(self):
- return 'branch.%s.stgit.stackformatversion' % self.get_name()
-
- def update_to_current_format_version(self):
- """Update a potentially older StGIT directory structure to the
- latest version. Note: This function should depend as little as
- possible on external functions that may change during a format
- version bump, since it must remain able to process older formats."""
-
- branch_dir = os.path.join(self._basedir(), 'patches', self.get_name())
- def get_format_version():
- """Return the integer format version number, or None if the
- branch doesn't have any StGIT metadata at all, of any version."""
- fv = config.get(self.format_version_key())
- ofv = config.get('branch.%s.stgitformatversion' % self.get_name())
- if fv:
- # Great, there's an explicitly recorded format version
- # number, which means that the branch is initialized and
- # of that exact version.
- return int(fv)
- elif ofv:
- # Old name for the version info, upgrade it
- config.set(self.format_version_key(), ofv)
- config.unset('branch.%s.stgitformatversion' % self.get_name())
- return int(ofv)
- elif os.path.isdir(os.path.join(branch_dir, 'patches')):
- # There's a .git/patches/<branch>/patches dirctory, which
- # means this is an initialized version 1 branch.
- return 1
- elif os.path.isdir(branch_dir):
- # There's a .git/patches/<branch> directory, which means
- # this is an initialized version 0 branch.
- return 0
- else:
- # The branch doesn't seem to be initialized at all.
- return None
- def set_format_version(v):
- out.info('Upgraded branch %s to format version %d' % (self.get_name(), v))
- config.set(self.format_version_key(), '%d' % v)
- def mkdir(d):
- if not os.path.isdir(d):
- os.makedirs(d)
- def rm(f):
- if os.path.exists(f):
- os.remove(f)
- def rm_ref(ref):
- if git.ref_exists(ref):
- git.delete_ref(ref)
-
- # Update 0 -> 1.
- if get_format_version() == 0:
- mkdir(os.path.join(branch_dir, 'trash'))
- patch_dir = os.path.join(branch_dir, 'patches')
- mkdir(patch_dir)
- refs_base = 'refs/patches/%s' % self.get_name()
- for patch in (file(os.path.join(branch_dir, 'unapplied')).readlines()
- + file(os.path.join(branch_dir, 'applied')).readlines()):
- patch = patch.strip()
- os.rename(os.path.join(branch_dir, patch),
- os.path.join(patch_dir, patch))
- Patch(patch, patch_dir, refs_base).update_top_ref()
- set_format_version(1)
-
- # Update 1 -> 2.
- if get_format_version() == 1:
- desc_file = os.path.join(branch_dir, 'description')
- if os.path.isfile(desc_file):
- desc = read_string(desc_file)
- if desc:
- config.set('branch.%s.description' % self.get_name(), desc)
- rm(desc_file)
- rm(os.path.join(branch_dir, 'current'))
- rm_ref('refs/bases/%s' % self.get_name())
- set_format_version(2)
-
- # Make sure we're at the latest version.
- if not get_format_version() in [None, FORMAT_VERSION]:
- raise StackException('Branch %s is at format version %d, expected %d'
- % (self.get_name(), get_format_version(), FORMAT_VERSION))
-
def __patch_name_valid(self, name):
"""Raise an exception if the patch name is not valid.
"""
raise StackException, 'Branch "%s" not initialised' % self.get_name()
return read_strings(self.__applied_file)
+ def set_applied(self, applied):
+ write_strings(self.__applied_file, applied)
+
def get_unapplied(self):
if not os.path.isfile(self.__unapplied_file):
raise StackException, 'Branch "%s" not initialised' % self.get_name()
return read_strings(self.__unapplied_file)
+ def set_unapplied(self, unapplied):
+ write_strings(self.__unapplied_file, unapplied)
+
def get_hidden(self):
if not os.path.isfile(self.__hidden_file):
return []
self.create_empty_field('applied')
self.create_empty_field('unapplied')
- self._set_field('orig-base', git.get_head())
- config.set(self.format_version_key(), str(FORMAT_VERSION))
+ config.set(stackupgrade.format_version_key(self.get_name()),
+ str(stackupgrade.FORMAT_VERSION))
def rename(self, to_name):
"""Renames a series
raise StackException('Series directory %s is not empty'
% self._dir())
- try:
- git.delete_branch(self.get_name())
- except GitException:
- out.warn('Could not delete branch "%s"' % self.get_name())
+ try:
+ git.delete_branch(self.get_name())
+ except git.GitException:
+ out.warn('Could not delete branch "%s"' % self.get_name())
config.remove_section('branch.%s' % self.get_name())
config.remove_section('branch.%s.stgit' % self.get_name())
def refresh_patch(self, files = None, message = None, edit = False,
+ empty = False,
show_patch = False,
cache_update = True,
author_name = None, author_email = None,
author_date = None,
committer_name = None, committer_email = None,
- backup = False, sign_str = None, log = 'refresh',
- notes = None):
- """Generates a new commit for the given patch
+ backup = True, sign_str = None, log = 'refresh',
+ notes = None, bottom = None):
+ """Generates a new commit for the topmost patch
"""
- name = self.get_current()
- if not name:
+ patch = self.get_current_patch()
+ if not patch:
raise StackException, 'No patches applied'
- patch = self.get_patch(name)
-
descr = patch.get_description()
if not (message or descr):
edit = True
if not message and edit:
descr = edit_file(self, descr.rstrip(), \
'Please edit the description for patch "%s" ' \
- 'above.' % name, show_patch)
+ 'above.' % patch.get_name(), show_patch)
if not author_name:
author_name = patch.get_authname()
if not author_email:
author_email = patch.get_authemail()
- if not author_date:
- author_date = patch.get_authdate()
if not committer_name:
committer_name = patch.get_commname()
if not committer_email:
descr = add_sign_line(descr, sign_str, committer_name, committer_email)
- bottom = patch.get_bottom()
+ if not bottom:
+ bottom = patch.get_bottom()
+
+ if empty:
+ tree_id = git.get_commit(bottom).get_tree()
+ else:
+ tree_id = None
commit_id = git.commit(files = files,
message = descr, parents = [bottom],
cache_update = cache_update,
+ tree_id = tree_id,
+ set_head = True,
allowempty = True,
author_name = author_name,
author_email = author_email,
committer_name = committer_name,
committer_email = committer_email)
- patch.set_bottom(bottom, backup = backup)
patch.set_top(commit_id, backup = backup)
patch.set_description(descr)
patch.set_authname(author_name)
top = None, bottom = None, commit = True,
author_name = None, author_email = None, author_date = None,
committer_name = None, committer_email = None,
- before_existing = False):
- """Creates a new patch
+ before_existing = False, sign_str = None):
+ """Creates a new patch, either pointing to an existing commit object,
+ or by creating a new commit object.
"""
+ assert commit or (top and bottom)
+ assert not before_existing or (top and bottom)
+ assert not (commit and before_existing)
+ assert (top and bottom) or (not top and not bottom)
+ assert commit or (not top or (bottom == git.get_commit(top).get_parent()))
+
if name != None:
self.__patch_name_valid(name)
if self.patch_exists(name):
# TODO: move this out of the stgit.stack module, it is really
# for higher level commands to handle the user interaction
+ def sign(msg):
+ return add_sign_line(msg, sign_str,
+ committer_name or git.committer().name,
+ committer_email or git.committer().email)
if not message and can_edit:
descr = edit_file(
- self, None,
+ self, sign(''),
'Please enter the description for the patch above.',
show_patch)
else:
- descr = message
+ descr = sign(message)
head = git.get_head()
patch = self.get_patch(name)
patch.create()
- if not bottom:
- bottom = head
- if not top:
- top = head
-
- patch.set_bottom(bottom)
- patch.set_top(top)
patch.set_description(descr)
patch.set_authname(author_name)
patch.set_authemail(author_email)
if before_existing:
insert_string(self.__applied_file, patch.get_name())
- # no need to commit anything as the object is already
- # present (mainly used by 'uncommit')
- commit = False
elif unapplied:
patches = [patch.get_name()] + self.get_unapplied()
write_strings(self.__unapplied_file, patches)
set_head = True
if commit:
+ if top:
+ top_commit = git.get_commit(top)
+ else:
+ bottom = head
+ top_commit = git.get_commit(head)
+
# create a commit for the patch (may be empty if top == bottom);
# only commit on top of the current branch
assert(unapplied or bottom == head)
- top_commit = git.get_commit(top)
commit_id = git.commit(message = descr, parents = [bottom],
cache_update = False,
tree_id = top_commit.get_tree(),
committer_email = committer_email)
# set the patch top to the new commit
patch.set_top(commit_id)
+ else:
+ patch.set_top(top)
self.log_patch(patch, 'new')
return patch
- def delete_patch(self, name):
+ def delete_patch(self, name, keep_log = False):
"""Deletes a patch
"""
self.__patch_name_valid(name)
# save the commit id to a trash file
write_string(os.path.join(self.__trash_dir, name), patch.get_top())
- patch.delete()
+ patch.delete(keep_log = keep_log)
unapplied = self.get_unapplied()
unapplied.remove(name)
if head == bottom:
# reset the backup information. No logging since the
# patch hasn't changed
- patch.set_bottom(head, backup = True)
patch.set_top(top, backup = True)
else:
committer_name = committer_name,
committer_email = committer_email)
- patch.set_bottom(head, backup = True)
patch.set_top(top, backup = True)
self.log_patch(patch, 'push(f)')
unapplied = self.get_unapplied()
assert(name in unapplied)
- patch = self.get_patch(name)
+ # patch = self.get_patch(name)
head = git.get_head()
- # 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)
-
append_string(self.__applied_file, name)
unapplied.remove(name)
write_strings(self.__unapplied_file, unapplied)
- self.refresh_patch(cache_update = False, log = 'push(m)')
+ self.refresh_patch(bottom = head, cache_update = False, log = 'push(m)')
def push_patch(self, name):
"""Pushes a patch on the stack
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 head == bottom:
- # reset the backup information. No need for logging
- patch.set_bottom(bottom, backup = True)
+ # A fast-forward push. Just reset the backup
+ # information. No need for logging
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".')
+ 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, ex:
+ out.error('The merge failed during "push".',
+ 'Revert the operation with "push --undo".')
append_string(self.__applied_file, name)
unapplied.remove(name)
write_strings(self.__unapplied_file, unapplied)
- # head == bottom case doesn't need to refresh the patch
- if head != bottom:
- 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(cache_update = False, log = log)
+ 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:
- # we store the correctly merged files only for
- # tracking the conflict history. Note that the
- # git.merge() operations should always leave the index
- # in a valid state (i.e. only stage 0 files)
- self.refresh_patch(cache_update = False, log = 'push(c)')
- raise StackException, str(ex)
+ 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
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()):
+ 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)
~mdw / stgit / blobdiff