Teach stgit to handle branch names with slashes in them; that is,
branches living in a subdirectory of .git/refs/heads.
I had to change the patch@branch/top command-line syntax to
patch@branch//top, in order to get sane parsing. The /top variant is
still available for repositories that have no slashy branches; it is
disabled as soon as there exists at least one subdirectory of
refs/heads. Preferably, this compatibility hack can be killed some
time in the future.
Signed-off-by: Karl Hasselström <kha@xxxxxxxxxxx>
---
Oh yeah, remember to change % to // in the commit comment as well . . .
Catalin, I hope you're paying attention when trying to pick the
correct three patches out of the salvos I've sent you. :-)
stgit/commands/branch.py | 5 ++
stgit/commands/common.py | 108 +++++++++++++++++++++++++++-------------------
stgit/commands/diff.py | 16 ++++---
stgit/commands/files.py | 4 +-
stgit/commands/id.py | 2 -
stgit/commands/mail.py | 8 ++-
stgit/git.py | 42 +++++++++---------
stgit/stack.py | 21 ++++++---
stgit/utils.py | 88 +++++++++++++++++++++++++++++++++++--
9 files changed, 202 insertions(+), 92 deletions(-)
4ce56cd9e2d39f3a98b6dd010d11beb6037f8ff3
diff --git a/stgit/commands/branch.py b/stgit/commands/branch.py
index 2218bbb..d348409 100644
--- a/stgit/commands/branch.py
+++ b/stgit/commands/branch.py
@@ -172,7 +172,10 @@ def func(parser, options, args):
if len(args) != 0:
parser.error('incorrect number of arguments')
- branches = os.listdir(os.path.join(basedir.get(), 'refs', 'heads'))
+ branches = []
+ basepath = os.path.join(basedir.get(), 'refs', 'heads')
+ for path, files, dirs in walk_tree(basepath):
+ branches += [os.path.join(path, f) for f in files]
branches.sort()
if branches:
diff --git a/stgit/commands/common.py b/stgit/commands/common.py
index c6ca514..93344aa 100644
--- a/stgit/commands/common.py
+++ b/stgit/commands/common.py
@@ -18,7 +18,7 @@ along with this program; if not, write t
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""
-import sys, os, re
+import sys, os, os.path, re
from optparse import OptionParser, make_option
from stgit.utils import *
@@ -34,54 +34,74 @@ class CmdException(Exception):
# Utility functions
+class RevParseException(Exception):
+ """Revision spec parse error."""
+ pass
+
+def parse_rev(rev):
+ """Parse a revision specification into its
+ patchname@branchname//patch_id parts. If no branch name has a slash
+ in it, also accept / instead of //."""
+ files, dirs = list_files_and_dirs(os.path.join(basedir.get(),
+ 'refs', 'heads'))
+ if len(dirs) != 0:
+ # We have branch names with / in them.
+ branch_chars = r'[^@]'
+ patch_id_mark = r'//'
+ else:
+ # No / in branch names.
+ branch_chars = r'[^@%/]'
+ patch_id_mark = r'(/|//)'
+ patch_re = r'(?P<patch>[^@/]+)'
+ branch_re = r'@(?P<branch>%s+)' % branch_chars
+ patch_id_re = r'%s(?P<patch_id>[a-z.]*)' % patch_id_mark
+
+ # Try //patch_id.
+ m = re.match(r'^%s$' % patch_id_re, rev)
+ if m:
+ return None, None, m.group('patch_id')
+
+ # Try path[@branch]//patch_id.
+ m = re.match(r'^%s(%s)?%s$' % (patch_re, branch_re, patch_id_re), rev)
+ if m:
+ return m.group('patch'), m.group('branch'), m.group('patch_id')
+
+ # Try patch[@branch].
+ m = re.match(r'^%s(%s)?$' % (patch_re, branch_re), rev)
+ if m:
+ return m.group('patch'), m.group('branch'), None
+
+ # No, we can't parse that.
+ raise RevParseException
+
def git_id(rev):
"""Return the GIT id
"""
if not rev:
return None
-
- rev_list = rev.split('/')
- if len(rev_list) == 2:
- patch_id = rev_list[1]
- if not patch_id:
- patch_id = 'top'
- elif len(rev_list) == 1:
- patch_id = 'top'
- else:
- patch_id = None
-
- patch_branch = rev_list[0].split('@')
- if len(patch_branch) == 1:
- series = crt_series
- elif len(patch_branch) == 2:
- series = stack.Series(patch_branch[1])
- else:
- raise CmdException, 'Unknown id: %s' % rev
-
- patch_name = patch_branch[0]
- if not patch_name:
- patch_name = series.get_current()
- if not patch_name:
- raise CmdException, 'No patches applied'
-
- # patch
- if patch_name in series.get_applied() \
- or patch_name in series.get_unapplied():
- if patch_id == 'top':
- return series.get_patch(patch_name).get_top()
- elif patch_id == 'bottom':
- return series.get_patch(patch_name).get_bottom()
- # Note we can return None here.
- elif patch_id == 'top.old':
- return series.get_patch(patch_name).get_old_top()
- elif patch_id == 'bottom.old':
- return series.get_patch(patch_name).get_old_bottom()
-
- # base
- if patch_name == 'base' and len(rev_list) == 1:
- return read_string(series.get_base_file())
-
- # anything else failed
+ try:
+ patch, branch, patch_id = parse_rev(rev)
+ if branch == None:
+ series = crt_series
+ else:
+ series = stack.Series(branch)
+ if patch == None:
+ patch = series.get_current()
+ if not patch:
+ raise CmdException, 'No patches applied'
+ if patch in series.get_applied() or patch in series.get_unapplied():
+ if patch_id in ['top', '', None]:
+ return series.get_patch(patch).get_top()
+ elif patch_id == 'bottom':
+ return series.get_patch(patch).get_bottom()
+ elif patch_id == 'top.old':
+ return series.get_patch(patch).get_old_top()
+ elif patch_id == 'bottom.old':
+ return series.get_patch(patch).get_old_bottom()
+ if patch == 'base' and patch_id == None:
+ return read_string(series.get_base_file())
+ except RevParseException:
+ pass
return git.rev_parse(rev + '^{commit}')
def check_local_changes():
diff --git a/stgit/commands/diff.py b/stgit/commands/diff.py
index 7dc6c5d..d765784 100644
--- a/stgit/commands/diff.py
+++ b/stgit/commands/diff.py
@@ -33,12 +33,12 @@ or a tree-ish object and another tree-is
be given to restrict the diff output. The tree-ish object can be a
standard git commit, tag or tree. In addition to these, the command
also supports 'base', representing the bottom of the current stack,
-and '[patch]/[bottom | top]' for the patch boundaries (defaulting to
+and '[patch][//[bottom | top]]' for the patch boundaries (defaulting to
the current one):
-rev = '([patch]/[bottom | top]) | <tree-ish> | base'
+rev = '([patch][//[bottom | top]]) | <tree-ish> | base'
-If neither bottom or top are given but a '/' is present, the command
+If neither bottom nor top are given but a '//' is present, the command
shows the specified patch (defaulting to the current one)."""
options = [make_option('-r', metavar = 'rev1[:[rev2]]', dest = 'revs',
@@ -55,10 +55,14 @@ def func(parser, options, args):
rev_list = options.revs.split(':')
rev_list_len = len(rev_list)
if rev_list_len == 1:
- if rev_list[0][-1] == '/':
+ rev = rev_list[0]
+ if rev[-1] == '/':
# the whole patch
- rev1 = rev_list[0] + 'bottom'
- rev2 = rev_list[0] + 'top'
+ rev = rev[:-1]
+ if rev[-1] == '/':
+ rev = rev[:-1]
+ rev1 = rev + '//bottom'
+ rev2 = rev + '//top'
else:
rev1 = rev_list[0]
rev2 = None
diff --git a/stgit/commands/files.py b/stgit/commands/files.py
index 0694d83..b33bd2a 100644
--- a/stgit/commands/files.py
+++ b/stgit/commands/files.py
@@ -53,8 +53,8 @@ def func(parser, options, args):
else:
parser.error('incorrect number of arguments')
- rev1 = git_id('%s/bottom' % patch)
- rev2 = git_id('%s/top' % patch)
+ rev1 = git_id('%s//bottom' % patch)
+ rev2 = git_id('%s//top' % patch)
if options.stat:
print git.diffstat(rev1 = rev1, rev2 = rev2)
diff --git a/stgit/commands/id.py b/stgit/commands/id.py
index 1cf6ea6..284589a 100644
--- a/stgit/commands/id.py
+++ b/stgit/commands/id.py
@@ -28,7 +28,7 @@ usage = """%prog [options] [id]
Print the hash value of a GIT id (defaulting to HEAD). In addition to
the standard GIT id's like heads and tags, this command also accepts
-'base[@<branch>]' and '[<patch>[@<branch>]][/(bottom | top)]'. If no
+'base[@<branch>]' and '[<patch>[@<branch>]][//[bottom | top]]'. If no
'top' or 'bottom' are passed and <patch> is a valid patch name, 'top'
will be used by default."""
diff --git a/stgit/commands/mail.py b/stgit/commands/mail.py
index 5e01ea1..3928b81 100644
--- a/stgit/commands/mail.py
+++ b/stgit/commands/mail.py
@@ -324,10 +324,10 @@ def __build_message(tmpl, patch, patch_n
'shortdescr': short_descr,
'longdescr': long_descr,
'endofheaders': headers_end,
- 'diff': git.diff(rev1 = git_id('%s/bottom' % patch),
- rev2 = git_id('%s/top' % patch)),
- 'diffstat': git.diffstat(rev1 = git_id('%s/bottom'%patch),
- rev2 = git_id('%s/top' % patch)),
+ 'diff': git.diff(rev1 = git_id('%s//bottom' % patch),
+ rev2 = git_id('%s//top' % patch)),
+ 'diffstat': git.diffstat(rev1 = git_id('%s//bottom'%patch),
+ rev2 = git_id('%s//top' % patch)),
'date': email.Utils.formatdate(localtime = True),
'version': version_str,
'patchnr': patch_nr_str,
diff --git a/stgit/git.py b/stgit/git.py
index 2884f36..716609c 100644
--- a/stgit/git.py
+++ b/stgit/git.py
@@ -225,7 +225,8 @@ def get_head():
def get_head_file():
"""Returns the name of the file pointed to by the HEAD link
"""
- return os.path.basename(_output_one_line('git-symbolic-ref HEAD'))
+ return strip_prefix('refs/heads/',
+ _output_one_line('git-symbolic-ref HEAD'))
def set_head_file(ref):
"""Resets HEAD to point to a new ref
@@ -233,7 +234,8 @@ def set_head_file(ref):
# head cache flushing is needed since we might have a different value
# in the new head
__clear_head_cache()
- if __run('git-symbolic-ref HEAD', [ref]) != 0:
+ if __run('git-symbolic-ref HEAD',
+ [os.path.join('refs', 'heads', ref)]) != 0:
raise GitException, 'Could not set head to "%s"' % ref
def __set_head(val):
@@ -272,6 +274,7 @@ def rev_parse(git_id):
def branch_exists(branch):
"""Existence check for the named branch
"""
+ branch = os.path.join('refs', 'heads', branch)
for line in _output_lines('git-rev-parse --symbolic --all 2>&1'):
if line.strip() == branch:
return True
@@ -282,12 +285,11 @@ def branch_exists(branch):
def create_branch(new_branch, tree_id = None):
"""Create a new branch in the git repository
"""
- new_head = os.path.join('refs', 'heads', new_branch)
- if branch_exists(new_head):
+ if branch_exists(new_branch):
raise GitException, 'Branch "%s" already exists' % new_branch
current_head = get_head()
- set_head_file(new_head)
+ set_head_file(new_branch)
__set_head(current_head)
# a checkout isn't needed if new branch points to the current head
@@ -297,22 +299,22 @@ def create_branch(new_branch, tree_id =
if os.path.isfile(os.path.join(basedir.get(), 'MERGE_HEAD')):
os.remove(os.path.join(basedir.get(), 'MERGE_HEAD'))
-def switch_branch(name):
+def switch_branch(new_branch):
"""Switch to a git branch
"""
global __head
- new_head = os.path.join('refs', 'heads', name)
- if not branch_exists(new_head):
- raise GitException, 'Branch "%s" does not exist' % name
+ if not branch_exists(new_branch):
+ raise GitException, 'Branch "%s" does not exist' % new_branch
- tree_id = rev_parse(new_head + '^{commit}')
+ tree_id = rev_parse(os.path.join('refs', 'heads', new_branch)
+ + '^{commit}')
if tree_id != get_head():
refresh_index()
if __run('git-read-tree -u -m', [get_head(), tree_id]) != 0:
raise GitException, 'git-read-tree failed (local changes maybe?)'
__head = tree_id
- set_head_file(new_head)
+ set_head_file(new_branch)
if os.path.isfile(os.path.join(basedir.get(), 'MERGE_HEAD')):
os.remove(os.path.join(basedir.get(), 'MERGE_HEAD'))
@@ -320,25 +322,23 @@ def switch_branch(name):
def delete_branch(name):
"""Delete a git branch
"""
- branch_head = os.path.join('refs', 'heads', name)
- if not branch_exists(branch_head):
+ if not branch_exists(name):
raise GitException, 'Branch "%s" does not exist' % name
- os.remove(os.path.join(basedir.get(), branch_head))
+ remove_file_and_dirs(os.path.join(basedir.get(), 'refs', 'heads'),
+ name)
def rename_branch(from_name, to_name):
"""Rename a git branch
"""
- from_head = os.path.join('refs', 'heads', from_name)
- if not branch_exists(from_head):
+ if not branch_exists(from_name):
raise GitException, 'Branch "%s" does not exist' % from_name
- to_head = os.path.join('refs', 'heads', to_name)
- if branch_exists(to_head):
+ if branch_exists(to_name):
raise GitException, 'Branch "%s" already exists' % to_name
if get_head_file() == from_name:
- set_head_file(to_head)
- os.rename(os.path.join(basedir.get(), from_head), \
- os.path.join(basedir.get(), to_head))
+ set_head_file(to_name)
+ rename(os.path.join(basedir.get(), 'refs', 'heads'),
+ from_name, to_name)
def add(names):
"""Add the files or recursively add the directory contents
diff --git a/stgit/stack.py b/stgit/stack.py
index f83161b..49b50e7 100644
--- a/stgit/stack.py
+++ b/stgit/stack.py
@@ -443,8 +443,7 @@ class Series:
os.makedirs(self.__patch_dir)
- if not os.path.isdir(bases_dir):
- os.makedirs(bases_dir)
+ create_dirs(bases_dir)
create_empty_file(self.__applied_file)
create_empty_file(self.__unapplied_file)
@@ -502,11 +501,14 @@ class Series:
git.rename_branch(self.__name, to_name)
if os.path.isdir(self.__series_dir):
- os.rename(self.__series_dir, to_stack.__series_dir)
+ rename(os.path.join(self.__base_dir, 'patches'),
+ self.__name, to_stack.__name)
if os.path.exists(self.__base_file):
- os.rename(self.__base_file, to_stack.__base_file)
+ rename(os.path.join(self.__base_dir, 'refs', 'bases'),
+ self.__name, to_stack.__name)
if os.path.exists(self.__refs_dir):
- os.rename(self.__refs_dir, to_stack.__refs_dir)
+ rename(os.path.join(self.__base_dir, 'refs', 'patches'),
+ self.__name, to_stack.__name)
self.__init__(to_name)
@@ -560,16 +562,19 @@ class Series:
else:
print 'Patch directory %s is not empty.' % self.__name
if not os.listdir(self.__series_dir):
- os.rmdir(self.__series_dir)
+ remove_dirs(os.path.join(self.__base_dir, 'patches'),
+ self.__name)
else:
print 'Series directory %s is not empty.' % self.__name
if not os.listdir(self.__refs_dir):
- os.rmdir(self.__refs_dir)
+ remove_dirs(os.path.join(self.__base_dir, 'refs', 'patches'),
+ self.__name)
else:
print 'Refs directory %s is not empty.' % self.__refs_dir
if os.path.exists(self.__base_file):
- os.remove(self.__base_file)
+ remove_file_and_dirs(
+ os.path.join(self.__base_dir, 'refs', 'bases'), self.__name)
def refresh_patch(self, files = None, message = None, edit = False,
show_patch = False,
diff --git a/stgit/utils.py b/stgit/utils.py
index 5749b3b..68b8f58 100644
--- a/stgit/utils.py
+++ b/stgit/utils.py
@@ -1,6 +1,8 @@
"""Common utility functions
"""
+import errno, os, os.path
+
__copyright__ = """
Copyright (C) 2005, Catalin Marinas <catalin.marinas@xxxxxxxxx>
@@ -18,6 +20,12 @@ along with this program; if not, write t
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""
+def mkdir_file(filename, mode):
+ """Opens filename with the given mode, creating the directory it's
+ in if it doesn't already exist."""
+ create_dirs(os.path.dirname(filename))
+ return file(filename, mode)
+
def read_string(filename, multiline = False):
"""Reads the first line from a file
"""
@@ -32,7 +40,7 @@ def read_string(filename, multiline = Fa
def write_string(filename, line, multiline = False):
"""Writes 'line' to file and truncates it
"""
- f = file(filename, 'w+')
+ f = mkdir_file(filename, 'w+')
if multiline:
f.write(line)
else:
@@ -42,7 +50,7 @@ def write_string(filename, line, multili
def append_strings(filename, lines):
"""Appends 'lines' sequence to file
"""
- f = file(filename, 'a+')
+ f = mkdir_file(filename, 'a+')
for line in lines:
print >> f, line
f.close()
@@ -50,14 +58,14 @@ def append_strings(filename, lines):
def append_string(filename, line):
"""Appends 'line' to file
"""
- f = file(filename, 'a+')
+ f = mkdir_file(filename, 'a+')
print >> f, line
f.close()
def insert_string(filename, line):
"""Inserts 'line' at the beginning of the file
"""
- f = file(filename, 'r+')
+ f = mkdir_file(filename, 'r+')
lines = f.readlines()
f.seek(0); f.truncate()
print >> f, line
@@ -67,4 +75,74 @@ def insert_string(filename, line):
def create_empty_file(name):
"""Creates an empty file
"""
- file(name, 'w+').close()
+ mkdir_file(name, 'w+').close()
+
+def list_files_and_dirs(path):
+ """Return the sets of filenames and directory names in a
+ directory."""
+ files, dirs = [], []
+ for fd in os.listdir(path):
+ full_fd = os.path.join(path, fd)
+ if os.path.isfile(full_fd):
+ files.append(fd)
+ elif os.path.isdir(full_fd):
+ dirs.append(fd)
+ return files, dirs
+
+def walk_tree(basedir):
+ """Starting in the given directory, iterate through all its
+ subdirectories. For each subdirectory, yield the name of the
+ subdirectory (relative to the base directory), the list of
+ filenames in the subdirectory, and the list of directory names in
+ the subdirectory."""
+ subdirs = ['']
+ while subdirs:
+ subdir = subdirs.pop()
+ files, dirs = list_files_and_dirs(os.path.join(basedir, subdir))
+ for d in dirs:
+ subdirs.append(os.path.join(subdir, d))
+ yield subdir, files, dirs
+
+def strip_prefix(prefix, string):
+ """Return string, without the prefix. Blow up if string doesn't
+ start with prefix."""
+ assert string.startswith(prefix)
+ return string[len(prefix):]
+
+def remove_dirs(basedir, dirs):
+ """Starting at join(basedir, dirs), remove the directory if empty,
+ and try the same with its parent, until we find a nonempty
+ directory or reach basedir."""
+ path = dirs
+ while path:
+ try:
+ os.rmdir(os.path.join(basedir, path))
+ except OSError:
+ return # can't remove nonempty directory
+ path = os.path.dirname(path)
+
+def remove_file_and_dirs(basedir, file):
+ """Remove join(basedir, file), and then remove the directory it
+ was in if empty, and try the same with its parent, until we find a
+ nonempty directory or reach basedir."""
+ os.remove(os.path.join(basedir, file))
+ remove_dirs(basedir, os.path.dirname(file))
+
+def create_dirs(directory):
+ """Create the given directory, if the path doesn't already exist."""
+ if directory:
+ create_dirs(os.path.dirname(directory))
+ try:
+ os.mkdir(directory)
+ except OSError, e:
+ if e.errno != errno.EEXIST:
+ raise e
+
+def rename(basedir, file1, file2):
+ """Rename join(basedir, file1) to join(basedir, file2), not
+ leaving any empty directories behind and creating any directories
+ necessary."""
+ full_file2 = os.path.join(basedir, file2)
+ create_dirs(os.path.dirname(full_file2))
+ os.rename(os.path.join(basedir, file1), full_file2)
+ remove_dirs(basedir, os.path.dirname(file1))
--
1.3.2.g639c
--
Karl Hasselström, kha@xxxxxxxxxxx
www.treskal.com/kalle
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