def remove_empty_branches(branch_tree):
tag_set = git.tags()
ensure_root_checkout = git.once(lambda: git.run('checkout', git.root()))
deletions = set()
downstreams = collections.defaultdict(list)
for branch, parent in git.topo_iter(branch_tree, top_down=False):
downstreams[parent].append(branch)
if git.hash_one(branch) == git.hash_one(parent):
ensure_root_checkout()
logging.debug('branch %s merged to %s', branch, parent)
for down in downstreams[branch]:
if down in deletions:
continue
if parent in tag_set:
git.set_branch_config(down, 'remote', '.')
git.set_branch_config(down, 'merge',
'refs/tags/%s' % parent)
print('Reparented %s to track %s [tag] (was tracking %s)' %
(down, parent, branch))
else:
git.run('branch', '--set-upstream-to', parent, down)
print('Reparented %s to track %s (was tracking %s)' %
(down, parent, branch))
deletions.add(branch)
print git.run('branch', '-d', branch)
def remove_empty_branches(branch_tree):
tag_set = git.tags()
ensure_root_checkout = git.once(lambda: git.run("checkout", git.root()))
deletions = set()
downstreams = collections.defaultdict(list)
for branch, parent in git.topo_iter(branch_tree, top_down=False):
downstreams[parent].append(branch)
if git.hash_one(branch) == git.hash_one(parent):
ensure_root_checkout()
logging.debug("branch %s merged to %s", branch, parent)
for down in downstreams[branch]:
if down in deletions:
continue
if parent in tag_set:
git.set_branch_config(down, "remote", ".")
git.set_branch_config(down, "merge", "refs/tags/%s" % parent)
print ("Reparented %s to track %s [tag] (was tracking %s)" % (down, parent, branch))
else:
git.run("branch", "--set-upstream-to", parent, down)
print ("Reparented %s to track %s (was tracking %s)" % (down, parent, branch))
deletions.add(branch)
print git.run("branch", "-d", branch)
def remove_empty_branches(branch_tree):
tag_set = git.tags()
ensure_root_checkout = git.once(lambda: git.run('checkout', git.root()))
deletions = {}
reparents = {}
downstreams = collections.defaultdict(list)
for branch, parent in git.topo_iter(branch_tree, top_down=False):
if git.is_dormant(branch):
continue
downstreams[parent].append(branch)
# If branch and parent have the same tree, then branch has to be marked
# for deletion and its children and grand-children reparented to parent.
if git.hash_one(branch + ":") == git.hash_one(parent + ":"):
ensure_root_checkout()
logging.debug('branch %s merged to %s', branch, parent)
# Mark branch for deletion while remembering the ordering, then add all
# its children as grand-children of its parent and record reparenting
# information if necessary.
deletions[branch] = len(deletions)
for down in downstreams[branch]:
if down in deletions:
continue
# Record the new and old parent for down, or update such a record
# if it already exists. Keep track of the ordering so that reparenting
# happen in topological order.
downstreams[parent].append(down)
if down not in reparents:
reparents[down] = (len(reparents), parent, branch)
else:
order, _, old_parent = reparents[down]
reparents[down] = (order, parent, old_parent)
# Apply all reparenting recorded, in order.
for branch, value in sorted(reparents.items(), key=lambda x: x[1][0]):
_, parent, old_parent = value
if parent in tag_set:
git.set_branch_config(branch, 'remote', '.')
git.set_branch_config(branch, 'merge', 'refs/tags/%s' % parent)
print('Reparented %s to track %s [tag] (was tracking %s)' %
(branch, parent, old_parent))
else:
git.run('branch', '--set-upstream-to', parent, branch)
print('Reparented %s to track %s (was tracking %s)' %
(branch, parent, old_parent))
# Apply all deletions recorded, in order.
for branch, _ in sorted(deletions.items(), key=lambda x: x[1]):
print(git.run('branch', '-d', branch))
def remove_empty_branches(branch_tree):
tag_set = git.tags()
ensure_root_checkout = git.once(lambda: git.run('checkout', git.root()))
deletions = {}
reparents = {}
downstreams = collections.defaultdict(list)
for branch, parent in git.topo_iter(branch_tree, top_down=False):
downstreams[parent].append(branch)
# If branch and parent have the same tree, then branch has to be marked
# for deletion and its children and grand-children reparented to parent.
if git.hash_one(branch+":") == git.hash_one(parent+":"):
ensure_root_checkout()
logging.debug('branch %s merged to %s', branch, parent)
# Mark branch for deletion while remembering the ordering, then add all
# its children as grand-children of its parent and record reparenting
# information if necessary.
deletions[branch] = len(deletions)
for down in downstreams[branch]:
if down in deletions:
continue
# Record the new and old parent for down, or update such a record
# if it already exists. Keep track of the ordering so that reparenting
# happen in topological order.
downstreams[parent].append(down)
if down not in reparents:
reparents[down] = (len(reparents), parent, branch)
else:
order, _, old_parent = reparents[down]
reparents[down] = (order, parent, old_parent)
# Apply all reparenting recorded, in order.
for branch, value in sorted(reparents.iteritems(), key=lambda x:x[1][0]):
_, parent, old_parent = value
if parent in tag_set:
git.set_branch_config(branch, 'remote', '.')
git.set_branch_config(branch, 'merge', 'refs/tags/%s' % parent)
print ('Reparented %s to track %s [tag] (was tracking %s)'
% (branch, parent, old_parent))
else:
git.run('branch', '--set-upstream-to', parent, branch)
print ('Reparented %s to track %s (was tracking %s)'
% (branch, parent, old_parent))
# Apply all deletions recorded, in order.
for branch, _ in sorted(deletions.iteritems(), key=lambda x: x[1]):
print git.run('branch', '-d', branch)
