import sys, os, re, gitmergeonefile
from shutil import copyfile
+from stgit.exception import *
from stgit import basedir
from stgit.utils import *
from stgit.out import *
from stgit.config import config
# git exception class
-class GitException(Exception):
+class GitException(StgException):
pass
# When a subprocess has a problem, we want the exception to be a
def tree_status(files = None, tree_id = 'HEAD', unknown = False,
noexclude = True, verbose = False, diff_flags = []):
- """Returns a list of pairs - (status, filename)
+ """Get the status of all changed files, or of a selected set of
+ files. Returns a list of pairs - (status, filename).
+
+ If 'files' is None, it will check all files, and optionally all
+ unknown files. If 'files' is a list, it will only check the files
+ in the list.
"""
+ assert files == None or not unknown
+
if verbose:
out.start('Checking for changes in the working directory')
refresh_index()
- if not files:
- files = []
cache_files = []
# unknown files
conflicts = get_conflicts()
if not conflicts:
conflicts = []
- cache_files += [('C', filename) for filename in conflicts]
+ cache_files += [('C', filename) for filename in conflicts
+ if files == None or filename in files]
# the rest
- for line in GRun('git-diff-index', *(diff_flags + [tree_id, '--'] + files)
- ).output_lines():
+ args = diff_flags + [tree_id]
+ if files != None:
+ args += ['--'] + files
+ for line in GRun('git-diff-index', *args).output_lines():
fs = tuple(line.rstrip().split(' ',4)[-1].split('\t',1))
if fs[1] not in conflicts:
cache_files.append(fs)
if verbose:
out.done()
+ assert files == None or set(f for s,f in cache_files) <= set(files)
return cache_files
def local_changes(verbose = True):
__head = rev_parse('HEAD')
return __head
+class DetachedHeadException(GitException):
+ def __init__(self):
+ GitException.__init__(self, 'Not on any branch')
+
def get_head_file():
- """Returns the name of the file pointed to by the HEAD link
- """
- return strip_prefix('refs/heads/',
- GRun('git-symbolic-ref', 'HEAD').output_one_line())
+ """Return the name of the file pointed to by the HEAD symref.
+ Throw an exception if HEAD is detached."""
+ try:
+ return strip_prefix(
+ 'refs/heads/', GRun('git-symbolic-ref', '-q', 'HEAD'
+ ).output_one_line())
+ except GitRunException:
+ raise DetachedHeadException()
def set_head_file(ref):
"""Resets HEAD to point to a new ref
"""Parse the string and return a verified SHA1 id
"""
try:
- return GRun('git-rev-parse', '--verify', git_id).output_one_line()
+ return GRun('git-rev-parse', '--verify', git_id
+ ).discard_stderr().output_one_line()
except GitRunException:
raise GitException, 'Unknown revision: %s' % git_id
def rename_branch(from_name, to_name):
"""Rename a git branch."""
rename_ref('refs/heads/%s' % from_name, 'refs/heads/%s' % to_name)
- if get_head_file() == from_name:
- set_head_file(to_name)
+ try:
+ if get_head_file() == from_name:
+ set_head_file(to_name)
+ except DetachedHeadException:
+ pass # detached HEAD, so the renamee can't be the current branch
reflog_dir = os.path.join(basedir.get(), 'logs', 'refs', 'heads')
if os.path.exists(reflog_dir) \
and os.path.exists(os.path.join(reflog_dir, from_name)):
def update_cache(files = None, force = False):
"""Update the cache information for the given files
"""
- if not files:
- files = []
-
cache_files = tree_status(files, verbose = False)
# everything is up-to-date
committer_name = None, committer_email = None):
"""Commit the current tree to repository
"""
- if not files:
- files = []
if not parents:
parents = []
if errors:
raise GitException, 'GIT index merging failed (possible conflicts)'
-def status(files = None, modified = False, new = False, deleted = False,
- conflict = False, unknown = False, noexclude = False,
- diff_flags = []):
- """Show the tree status
- """
- if not files:
- files = []
-
- cache_files = tree_status(files, unknown = True, noexclude = noexclude,
- diff_flags = diff_flags)
- all = not (modified or new or deleted or conflict or unknown)
-
- if not all:
- filestat = []
- if modified:
- filestat.append('M')
- if new:
- filestat.append('A')
- filestat.append('N')
- if deleted:
- filestat.append('D')
- if conflict:
- filestat.append('C')
- if unknown:
- filestat.append('?')
- cache_files = [x for x in cache_files if x[0] in filestat]
-
- for fs in cache_files:
- if files and not fs[1] in files:
- continue
- if all:
- out.stdout('%s %s' % (fs[0], fs[1]))
- else:
- out.stdout('%s' % fs[1])
-
def diff(files = None, rev1 = 'HEAD', rev2 = None, diff_flags = []):
"""Show the diff between rev1 and rev2
"""
config.get('stgit.pullcmd')
GRun(*(command.split() + args)).run()
+def rebase(tree_id = None):
+ """Rebase the current tree to the give tree_id. The tree_id
+ argument may be something other than a GIT id if an external
+ command is invoked.
+ """
+ command = config.get('branch.%s.stgit.rebasecmd' % get_head_file()) \
+ or config.get('stgit.rebasecmd')
+ if tree_id:
+ args = [tree_id]
+ elif command:
+ args = []
+ else:
+ raise GitException, 'Default rebasing requires a commit id'
+ if command:
+ # clear the HEAD cache as the custom rebase command will update it
+ __clear_head_cache()
+ GRun(*(command.split() + args)).run()
+ else:
+ # default rebasing
+ reset(tree_id = tree_id)
+
def repack():
"""Repack all objects into a single pack
"""
m = re.match('^([^\t]*)\t\t', line)
if m:
if fetch_head:
- raise GitException, "StGit does not support multiple FETCH_HEAD"
+ raise GitException, 'StGit does not support multiple FETCH_HEAD'
else:
fetch_head=m.group(1)
stream.close()
+ if not fetch_head:
+ raise GitException, 'No for-merge remote head found in FETCH_HEAD'
+
# here we are sure to have a single fetch_head
return fetch_head
~mdw / stgit / blobdiff