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Diffstat (limited to 'lib/git/objects/submodule/root.py')
| -rw-r--r-- | lib/git/objects/submodule/root.py | 262 |
1 files changed, 0 insertions, 262 deletions
diff --git a/lib/git/objects/submodule/root.py b/lib/git/objects/submodule/root.py deleted file mode 100644 index 2e3cc775..00000000 --- a/lib/git/objects/submodule/root.py +++ /dev/null @@ -1,262 +0,0 @@ -from base import Submodule -from util import ( - find_first_remote_branch - ) -from git.exc import InvalidGitRepositoryError -import git - -import sys - -__all__ = ["RootModule"] - - -class RootModule(Submodule): - """A (virtual) Root of all submodules in the given repository. It can be used - to more easily traverse all submodules of the master repository""" - - __slots__ = tuple() - - k_root_name = '__ROOT__' - - def __init__(self, repo): - # repo, binsha, mode=None, path=None, name = None, parent_commit=None, url=None, ref=None) - super(RootModule, self).__init__( - repo, - binsha = self.NULL_BIN_SHA, - mode = self.k_default_mode, - path = '', - name = self.k_root_name, - parent_commit = repo.head.commit, - url = '', - branch_path = git.Head.to_full_path(self.k_head_default) - ) - - - def _clear_cache(self): - """May not do anything""" - pass - - #{ Interface - - def update(self, previous_commit=None, recursive=True, force_remove=False, init=True, to_latest_revision=False): - """Update the submodules of this repository to the current HEAD commit. - This method behaves smartly by determining changes of the path of a submodules - repository, next to changes to the to-be-checked-out commit or the branch to be - checked out. This works if the submodules ID does not change. - Additionally it will detect addition and removal of submodules, which will be handled - gracefully. - - :param previous_commit: If set to a commit'ish, the commit we should use - as the previous commit the HEAD pointed to before it was set to the commit it points to now. - If None, it defaults to ORIG_HEAD otherwise, or the parent of the current - commit if it is not given - :param recursive: if True, the children of submodules will be updated as well - using the same technique - :param force_remove: If submodules have been deleted, they will be forcibly removed. - Otherwise the update may fail if a submodule's repository cannot be deleted as - changes have been made to it (see Submodule.update() for more information) - :param init: If we encounter a new module which would need to be initialized, then do it. - :param to_latest_revision: If True, instead of checking out the revision pointed to - by this submodule's sha, the checked out tracking branch will be merged with the - newest remote branch fetched from the repository's origin""" - if self.repo.bare: - raise InvalidGitRepositoryError("Cannot update submodules in bare repositories") - # END handle bare - - repo = self.repo - - # HANDLE COMMITS - ################## - cur_commit = repo.head.commit - if previous_commit is None: - symref = repo.head.orig_head() - try: - previous_commit = symref.commit - except Exception: - pcommits = cur_commit.parents - if pcommits: - previous_commit = pcommits[0] - else: - # in this special case, we just diff against ourselve, which - # means exactly no change - previous_commit = cur_commit - # END handle initial commit - # END no ORIG_HEAD - else: - previous_commit = repo.commit(previous_commit) # obtain commit object - # END handle previous commit - - - psms = self.list_items(repo, parent_commit=previous_commit) - sms = self.list_items(self.module()) - spsms = set(psms) - ssms = set(sms) - - # HANDLE REMOVALS - ################### - for rsm in (spsms - ssms): - # fake it into thinking its at the current commit to allow deletion - # of previous module. Trigger the cache to be updated before that - #rsm.url - rsm._parent_commit = repo.head.commit - rsm.remove(configuration=False, module=True, force=force_remove) - # END for each removed submodule - - # HANDLE PATH RENAMES - ##################### - # url changes + branch changes - for csm in (spsms & ssms): - psm = psms[csm.name] - sm = sms[csm.name] - - if sm.path != psm.path and psm.module_exists(): - # move the module to the new path - psm.move(sm.path, module=True, configuration=False) - # END handle path changes - - if sm.module_exists(): - # handle url change - if sm.url != psm.url: - # Add the new remote, remove the old one - # This way, if the url just changes, the commits will not - # have to be re-retrieved - nn = '__new_origin__' - smm = sm.module() - rmts = smm.remotes - - # don't do anything if we already have the url we search in place - if len([r for r in rmts if r.url == sm.url]) == 0: - - - assert nn not in [r.name for r in rmts] - smr = smm.create_remote(nn, sm.url) - smr.fetch() - - # If we have a tracking branch, it should be available - # in the new remote as well. - if len([r for r in smr.refs if r.remote_head == sm.branch_name]) == 0: - raise ValueError("Submodule branch named %r was not available in new submodule remote at %r" % (sm.branch_name, sm.url)) - # END head is not detached - - # now delete the changed one - rmt_for_deletion = None - for remote in rmts: - if remote.url == psm.url: - rmt_for_deletion = remote - break - # END if urls match - # END for each remote - - # if we didn't find a matching remote, but have exactly one, - # we can safely use this one - if rmt_for_deletion is None: - if len(rmts) == 1: - rmt_for_deletion = rmts[0] - else: - # if we have not found any remote with the original url - # we may not have a name. This is a special case, - # and its okay to fail here - # Alternatively we could just generate a unique name and leave all - # existing ones in place - raise InvalidGitRepositoryError("Couldn't find original remote-repo at url %r" % psm.url) - #END handle one single remote - # END handle check we found a remote - - orig_name = rmt_for_deletion.name - smm.delete_remote(rmt_for_deletion) - # NOTE: Currently we leave tags from the deleted remotes - # as well as separate tracking branches in the possibly totally - # changed repository ( someone could have changed the url to - # another project ). At some point, one might want to clean - # it up, but the danger is high to remove stuff the user - # has added explicitly - - # rename the new remote back to what it was - smr.rename(orig_name) - - # early on, we verified that the our current tracking branch - # exists in the remote. Now we have to assure that the - # sha we point to is still contained in the new remote - # tracking branch. - smsha = sm.binsha - found = False - rref = smr.refs[self.branch_name] - for c in rref.commit.traverse(): - if c.binsha == smsha: - found = True - break - # END traverse all commits in search for sha - # END for each commit - - if not found: - # adjust our internal binsha to use the one of the remote - # this way, it will be checked out in the next step - # This will change the submodule relative to us, so - # the user will be able to commit the change easily - print >> sys.stderr, "WARNING: Current sha %s was not contained in the tracking branch at the new remote, setting it the the remote's tracking branch" % sm.hexsha - sm.binsha = rref.commit.binsha - #END reset binsha - - #NOTE: All checkout is performed by the base implementation of update - - # END skip remote handling if new url already exists in module - # END handle url - - if sm.branch_path != psm.branch_path: - # finally, create a new tracking branch which tracks the - # new remote branch - smm = sm.module() - smmr = smm.remotes - try: - tbr = git.Head.create(smm, sm.branch_name) - except git.GitCommandError, e: - if e.status != 128: - raise - #END handle something unexpected - - # ... or reuse the existing one - tbr = git.Head(smm, sm.branch_path) - #END assure tracking branch exists - - tbr.set_tracking_branch(find_first_remote_branch(smmr, sm.branch_name)) - # figure out whether the previous tracking branch contains - # new commits compared to the other one, if not we can - # delete it. - try: - tbr = find_first_remote_branch(smmr, psm.branch_name) - if len(smm.git.cherry(tbr, psm.branch)) == 0: - psm.branch.delete(smm, psm.branch) - #END delete original tracking branch if there are no changes - except InvalidGitRepositoryError: - # ignore it if the previous branch couldn't be found in the - # current remotes, this just means we can't handle it - pass - # END exception handling - - #NOTE: All checkout is done in the base implementation of update - - #END handle branch - #END handle - # END for each common submodule - - # FINALLY UPDATE ALL ACTUAL SUBMODULES - ###################################### - for sm in sms: - # update the submodule using the default method - sm.update(recursive=False, init=init, to_latest_revision=to_latest_revision) - - # update recursively depth first - question is which inconsitent - # state will be better in case it fails somewhere. Defective branch - # or defective depth. The RootSubmodule type will never process itself, - # which was done in the previous expression - if recursive: - type(self)(sm.module()).update(recursive=True, force_remove=force_remove, - init=init, to_latest_revision=to_latest_revision) - #END handle recursive - # END for each submodule to update - - def module(self): - """:return: the actual repository containing the submodules""" - return self.repo - #} END interface -#} END classes |