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 main(args):
current = current_branch()
if current == 'HEAD':
current = None
old_name_help = 'The old branch to rename.'
if current:
old_name_help += ' (default %(default)r)'
parser = argparse.ArgumentParser()
parser.add_argument('old_name', nargs=('?' if current else 1),
help=old_name_help, default=current)
parser.add_argument('new_name', help='The new branch name.')
opts = parser.parse_args(args)
# when nargs=1, we get a list :(
if isinstance(opts.old_name, list):
opts.old_name = opts.old_name[0]
try:
run('branch', '-m', opts.old_name, opts.new_name)
# update the downstreams
for branch, merge in branch_config_map('merge').items():
if merge == 'refs/heads/' + opts.old_name:
# Only care about local branches
if branch_config(branch, 'remote') == '.':
set_branch_config(branch, 'merge', 'refs/heads/' + opts.new_name)
except subprocess2.CalledProcessError as cpe:
sys.stderr.write(cpe.stderr)
return 1
return 0
def main(args):
current = current_branch()
if current == 'HEAD':
current = None
old_name_help = 'The old branch to rename.'
if current:
old_name_help += ' (default %(default)r)'
parser = argparse.ArgumentParser()
parser.add_argument('old_name', nargs=('?' if current else 1),
help=old_name_help, default=current)
parser.add_argument('new_name', help='The new branch name.')
opts = parser.parse_args(args)
# when nargs=1, we get a list :(
if isinstance(opts.old_name, list):
opts.old_name = opts.old_name[0]
try:
run('branch', '-m', opts.old_name, opts.new_name)
# update the downstreams
for branch, merge in branch_config_map('merge').iteritems():
if merge == 'refs/heads/' + opts.old_name:
# Only care about local branches
if branch_config(branch, 'remote') == '.':
set_branch_config(branch, 'merge', 'refs/heads/' + opts.new_name)
except subprocess2.CalledProcessError as cpe:
sys.stderr.write(cpe.stderr)
return 1
def main(args):
root_ref = root()
parser = argparse.ArgumentParser()
g = parser.add_mutually_exclusive_group()
g.add_argument('new_parent',
nargs='?',
help='New parent branch (or tag) to reparent to.')
g.add_argument('--root',
action='store_true',
help='Reparent to the configured root branch (%s).' %
root_ref)
g.add_argument('--lkgr',
action='store_true',
help='Reparent to the lkgr tag.')
opts = parser.parse_args(args)
# TODO(iannucci): Allow specification of the branch-to-reparent
branch = current_branch()
if opts.root:
new_parent = root_ref
elif opts.lkgr:
new_parent = 'lkgr'
else:
new_parent = opts.new_parent
cur_parent = upstream(branch)
if branch == 'HEAD' or not branch:
parser.error('Must be on the branch you want to reparent')
if new_parent == cur_parent:
parser.error('Cannot reparent a branch to its existing parent')
mbase = get_or_create_merge_base(branch, cur_parent)
all_tags = tags()
if cur_parent in all_tags:
cur_parent += ' [tag]'
try:
run('show-ref', new_parent)
except subprocess2.CalledProcessError:
print >> sys.stderr, 'fatal: invalid reference: %s' % new_parent
return 1
if new_parent in all_tags:
print("Reparenting %s to track %s [tag] (was %s)" %
(branch, new_parent, cur_parent))
set_branch_config(branch, 'remote', '.')
set_branch_config(branch, 'merge', new_parent)
else:
print("Reparenting %s to track %s (was %s)" %
(branch, new_parent, cur_parent))
run('branch', '--set-upstream-to', new_parent, branch)
manual_merge_base(branch, mbase, new_parent)
# TODO(iannucci): ONLY rebase-update the branch which moved (and dependants)
return git_rebase_update.main(['--no-fetch'])
def main(args):
root_ref = root()
parser = argparse.ArgumentParser()
g = parser.add_mutually_exclusive_group()
g.add_argument('new_parent', nargs='?',
help='New parent branch (or tag) to reparent to.')
g.add_argument('--root', action='store_true',
help='Reparent to the configured root branch (%s).' % root_ref)
g.add_argument('--lkgr', action='store_true',
help='Reparent to the lkgr tag.')
opts = parser.parse_args(args)
# TODO(iannucci): Allow specification of the branch-to-reparent
branch = current_branch()
if opts.root:
new_parent = root_ref
elif opts.lkgr:
new_parent = 'lkgr'
else:
if not opts.new_parent:
parser.error('Must specify new parent somehow')
new_parent = opts.new_parent
cur_parent = upstream(branch)
if branch == 'HEAD' or not branch:
parser.error('Must be on the branch you want to reparent')
if new_parent == cur_parent:
parser.error('Cannot reparent a branch to its existing parent')
mbase = get_or_create_merge_base(branch, cur_parent)
all_tags = tags()
if cur_parent in all_tags:
cur_parent += ' [tag]'
try:
run('show-ref', new_parent)
except subprocess2.CalledProcessError:
print >> sys.stderr, 'fatal: invalid reference: %s' % new_parent
return 1
if new_parent in all_tags:
print ("Reparenting %s to track %s [tag] (was %s)"
% (branch, new_parent, cur_parent))
set_branch_config(branch, 'remote', '.')
set_branch_config(branch, 'merge', new_parent)
else:
print ("Reparenting %s to track %s (was %s)"
% (branch, new_parent, cur_parent))
run('branch', '--set-upstream-to', new_parent, branch)
manual_merge_base(branch, mbase, new_parent)
# TODO(iannucci): ONLY rebase-update the branch which moved (and dependants)
return git_rebase_update.main(['--no-fetch'])
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)
def main(args):
root_ref = root()
parser = argparse.ArgumentParser()
g = parser.add_mutually_exclusive_group()
g.add_argument('new_parent', nargs='?',
help='New parent branch (or tag) to reparent to.')
g.add_argument('--root', action='store_true',
help='Reparent to the configured root branch (%s).' % root_ref)
g.add_argument('--lkgr', action='store_true',
help='Reparent to the lkgr tag.')
opts = parser.parse_args(args)
# TODO(iannucci): Allow specification of the branch-to-reparent
branch = current_branch()
if opts.root:
new_parent = root_ref
elif opts.lkgr:
new_parent = 'lkgr'
else:
if not opts.new_parent:
parser.error('Must specify new parent somehow')
new_parent = opts.new_parent
cur_parent = upstream(branch)
if branch == 'HEAD' or not branch:
parser.error('Must be on the branch you want to reparent')
if new_parent == cur_parent:
parser.error('Cannot reparent a branch to its existing parent')
if not cur_parent:
msg = (
"Unable to determine %s@{upstream}.\n\nThis can happen if you didn't use "
"`git new-branch` to create the branch and haven't used "
"`git branch --set-upstream-to` to assign it one.\n\nPlease assign an "
"upstream branch and then run this command again."
)
print(msg % branch, file=sys.stderr)
return 1
mbase = get_or_create_merge_base(branch, cur_parent)
all_tags = tags()
if cur_parent in all_tags:
cur_parent += ' [tag]'
try:
run('show-ref', new_parent)
except subprocess2.CalledProcessError:
print('fatal: invalid reference: %s' % new_parent, file=sys.stderr)
return 1
if new_parent in all_tags:
print("Reparenting %s to track %s [tag] (was %s)" % (branch, new_parent,
cur_parent))
set_branch_config(branch, 'remote', '.')
set_branch_config(branch, 'merge', new_parent)
else:
print("Reparenting %s to track %s (was %s)" % (branch, new_parent,
cur_parent))
run('branch', '--set-upstream-to', new_parent, branch)
manual_merge_base(branch, mbase, new_parent)
# ONLY rebase-update the branch which moved (and dependants)
_, branch_tree = get_branch_tree()
branches = [branch]
for branch, parent in topo_iter(branch_tree):
if parent in branches:
branches.append(branch)
return git_rebase_update.main(['--no-fetch'] + branches)
