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
pass
class GRun(Run):
exc = GitRunException
+ def __init__(self, *cmd):
+ """Initialise the Run object and insert the 'git' command name.
+ """
+ Run.__init__(self, 'git', *cmd)
#
def __init__(self, id_hash):
self.__id_hash = id_hash
- lines = GRun('git-cat-file', 'commit', id_hash).output_lines()
+ lines = GRun('cat-file', 'commit', id_hash).output_lines()
for i in range(len(lines)):
line = lines[i]
if not line:
return None
def get_parents(self):
- return GRun('git-rev-list', '--parents', '--max-count=1', self.__id_hash
+ return GRun('rev-list', '--parents', '--max-count=1', self.__id_hash
).output_one_line().split()[1:]
def get_author(self):
files.append(user_exclude)
return files
+def ls_files(files, tree = None, full_name = True):
+ """Return the files known to GIT or raise an error otherwise. It also
+ converts the file to the full path relative the the .git directory.
+ """
+ if not files:
+ return []
+
+ args = []
+ if tree:
+ args.append('--with-tree=%s' % tree)
+ if full_name:
+ args.append('--full-name')
+ args.append('--')
+ args.extend(files)
+ try:
+ return GRun('ls-files', '--error-unmatch', *args).output_lines()
+ except GitRunException:
+ # just hide the details of the 'git ls-files' command we use
+ raise GitException, \
+ 'Some of the given paths are either missing or not known to GIT'
+
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 'not files', 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 not files or not unknown
+
if verbose:
out.start('Checking for changes in the working directory')
refresh_index()
- if not files:
- files = []
cache_files = []
# unknown files
if unknown:
- cmd = ['git-ls-files', '-z', '--others', '--directory',
+ cmd = ['ls-files', '-z', '--others', '--directory',
'--no-empty-directory']
if not noexclude:
cmd += ['--exclude=%s' % s for s in
conflicts = get_conflicts()
if not conflicts:
conflicts = []
- cache_files += [('C', filename) for filename in conflicts]
+ cache_files += [('C', filename) for filename in conflicts
+ if not files or filename in files]
+ reported_files = set(conflicts)
- # the rest
- for line in GRun('git-diff-index', *(diff_flags + [tree_id, '--'] + files)
- ).output_lines():
+ # files in the index
+ args = diff_flags + [tree_id]
+ if files:
+ args += ['--'] + files
+ for line in GRun('diff-index', *args).output_lines():
+ fs = tuple(line.rstrip().split(' ',4)[-1].split('\t',1))
+ if fs[1] not in reported_files:
+ cache_files.append(fs)
+ reported_files.add(fs[1])
+
+ # files in the index but changed on (or removed from) disk
+ args = list(diff_flags)
+ if files:
+ args += ['--'] + files
+ for line in GRun('diff-files', *args).output_lines():
fs = tuple(line.rstrip().split(' ',4)[-1].split('\t',1))
- if fs[1] not in conflicts:
+ if fs[1] not in reported_files:
cache_files.append(fs)
+ reported_files.add(fs[1])
if verbose:
out.done()
def get_heads():
heads = []
hr = re.compile(r'^[0-9a-f]{40} refs/heads/(.+)$')
- for line in GRun('git-show-ref', '--heads').output_lines():
+ for line in GRun('show-ref', '--heads').output_lines():
m = hr.match(line)
heads.append(m.group(1))
return heads
__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('symbolic-ref', '-q', 'HEAD'
+ ).output_one_line())
+ except GitRunException:
+ raise DetachedHeadException()
def set_head_file(ref):
"""Resets HEAD to point to a new ref
# in the new head
__clear_head_cache()
try:
- GRun('git-symbolic-ref', 'HEAD', 'refs/heads/%s' % ref).run()
+ GRun('symbolic-ref', 'HEAD', 'refs/heads/%s' % ref).run()
except GitRunException:
raise GitException, 'Could not set head to "%s"' % ref
def set_ref(ref, val):
"""Point ref at a new commit object."""
try:
- GRun('git-update-ref', ref, val).run()
+ GRun('update-ref', ref, val).run()
except GitRunException:
raise GitException, 'Could not update %s to "%s".' % (ref, val)
def refresh_index():
"""Refresh index with stat() information from the working directory.
"""
- GRun('git-update-index', '-q', '--unmerged', '--refresh').run()
+ GRun('update-index', '-q', '--unmerged', '--refresh').run()
def rev_parse(git_id):
"""Parse the string and return a verified SHA1 id
"""
try:
- return GRun('git-rev-parse', '--verify', git_id).output_one_line()
+ return GRun('rev-parse', '--verify', git_id
+ ).discard_stderr().output_one_line()
except GitRunException:
raise GitException, 'Unknown revision: %s' % git_id
if branch_exists(new_branch):
raise GitException, 'Branch "%s" already exists' % new_branch
+ current_head_file = get_head_file()
current_head = get_head()
set_head_file(new_branch)
__set_head(current_head)
# a checkout isn't needed if new branch points to the current head
if tree_id:
- switch(tree_id)
+ try:
+ switch(tree_id)
+ except GitException:
+ # Tree switching failed. Revert the head file
+ set_head_file(current_head_file)
+ delete_branch(new_branch)
+ raise
if os.path.isfile(os.path.join(basedir.get(), 'MERGE_HEAD')):
os.remove(os.path.join(basedir.get(), 'MERGE_HEAD'))
if tree_id != get_head():
refresh_index()
try:
- GRun('git-read-tree', '-u', '-m', get_head(), tree_id).run()
+ GRun('read-tree', '-u', '-m', get_head(), tree_id).run()
except GitRunException:
- raise GitException, 'git-read-tree failed (local changes maybe?)'
+ raise GitException, 'read-tree failed (local changes maybe?)'
__head = tree_id
set_head_file(new_branch)
def delete_ref(ref):
if not ref_exists(ref):
raise GitException, '%s does not exist' % ref
- sha1 = GRun('git-show-ref', '-s', ref).output_one_line()
+ sha1 = GRun('show-ref', '-s', ref).output_one_line()
try:
- GRun('git-update-ref', '-d', ref, sha1).run()
+ GRun('update-ref', '-d', ref, sha1).run()
except GitRunException:
raise GitException, 'Failed to delete ref %s' % ref
if ref_exists(to_ref):
raise GitException, '"%s" already exists' % to_ref
- sha1 = GRun('git-show-ref', '-s', from_ref).output_one_line()
+ sha1 = GRun('show-ref', '-s', from_ref).output_one_line()
try:
- GRun('git-update-ref', to_ref, sha1, '0'*40).run()
+ GRun('update-ref', to_ref, sha1, '0'*40).run()
except GitRunException:
raise GitException, 'Failed to create new ref %s' % to_ref
try:
- GRun('git-update-ref', '-d', from_ref, sha1).run()
+ GRun('update-ref', '-d', from_ref, sha1).run()
except GitRunException:
raise GitException, 'Failed to delete ref %s' % from_ref
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)):
if files:
try:
- GRun('git-update-index', '--add', '--').xargs(files)
+ GRun('update-index', '--add', '--').xargs(files)
except GitRunException:
raise GitException, 'Unable to add file'
"""Copy file or dir named 'source' to name target+target2"""
# "source" (file or dir) must match one or more git-controlled file
- realfiles = GRun('git-ls-files', source).output_lines()
+ realfiles = GRun('ls-files', source).output_lines()
if len(realfiles) == 0:
raise GitException, '"%s" matches no git-controled files' % source
if os.path.exists(f):
raise GitException, '%s exists. Remove it first' %f
if files:
- GRun('git-update-index', '--remove', '--').xargs(files)
+ GRun('update-index', '--remove', '--').xargs(files)
else:
if files:
- GRun('git-update-index', '--force-remove', '--').xargs(files)
+ GRun('update-index', '--force-remove', '--').xargs(files)
# Persons caching
__user = None
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
rm_files = [x[1] for x in cache_files if x[0] in ['D']]
m_files = [x[1] for x in cache_files if x[0] in ['M']]
- GRun('git-update-index', '--add', '--').xargs(add_files)
- GRun('git-update-index', '--force-remove', '--').xargs(rm_files)
- GRun('git-update-index', '--').xargs(m_files)
+ GRun('update-index', '--add', '--').xargs(add_files)
+ GRun('update-index', '--force-remove', '--').xargs(rm_files)
+ GRun('update-index', '--').xargs(m_files)
return True
committer_name = None, committer_email = None):
"""Commit the current tree to repository
"""
- if not files:
- files = []
if not parents:
parents = []
# write the index to repository
if tree_id == None:
- tree_id = GRun('git-write-tree').output_one_line()
+ tree_id = GRun('write-tree').output_one_line()
set_head = True
# the commit
env['GIT_COMMITTER_NAME'] = committer_name
if committer_email:
env['GIT_COMMITTER_EMAIL'] = committer_email
- commit_id = GRun('git-commit-tree', tree_id,
+ commit_id = GRun('commit-tree', tree_id,
*sum([['-p', p] for p in parents], [])
).env(env).raw_input(message).output_one_line()
if set_head:
diff_str = diff(files, rev1, rev2)
if diff_str:
try:
- GRun('git-apply', *index_opt).raw_input(
+ GRun('apply', *index_opt).raw_input(
diff_str).discard_stderr().no_output()
except GitRunException:
return False
# general when pushing or picking patches)
try:
# discard output to mask the verbose prints of the tool
- GRun('git-merge-recursive', base, '--', head1, head2
+ GRun('merge-recursive', base, '--', head1, head2
).discard_output()
except GitRunException, ex:
err_output = str(ex)
# distance between base and heads is small, i.e. folding or
# synchronising patches)
try:
- GRun('git-read-tree', '-u', '-m', '--aggressive',
+ GRun('read-tree', '-u', '-m', '--aggressive',
base, head1, head2).run()
except GitRunException:
- raise GitException, 'git-read-tree failed (local changes maybe?)'
+ raise GitException, 'read-tree failed (local changes maybe?)'
# check the index for unmerged entries
files = {}
stages_re = re.compile('^([0-7]+) ([0-9a-f]{40}) ([1-3])\t(.*)$', re.S)
- for line in GRun('git-ls-files', '--unmerged', '--stage', '-z'
+ for line in GRun('ls-files', '--unmerged', '--stage', '-z'
).raw_output().split('\0'):
if not line:
continue
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 = []):
+def diff(files = None, rev1 = 'HEAD', rev2 = None, diff_flags = [],
+ binary = True):
"""Show the diff between rev1 and rev2
"""
if not files:
files = []
+ if binary and '--binary' not in diff_flags:
+ diff_flags = diff_flags + ['--binary']
if rev1 and rev2:
- return GRun('git-diff-tree', '-p',
+ return GRun('diff-tree', '-p',
*(diff_flags + [rev1, rev2, '--'] + files)).raw_output()
elif rev1 or rev2:
refresh_index()
if rev2:
- return GRun('git-diff-index', '-p', '-R',
+ return GRun('diff-index', '-p', '-R',
*(diff_flags + [rev2, '--'] + files)).raw_output()
else:
- return GRun('git-diff-index', '-p',
+ return GRun('diff-index', '-p',
*(diff_flags + [rev1, '--'] + files)).raw_output()
else:
return ''
+# TODO: take another parameter representing a diff string as we
+# usually invoke git.diff() form the calling functions
def diffstat(files = None, rev1 = 'HEAD', rev2 = None):
"""Return the diffstat between rev1 and rev2."""
- return GRun('git-apply', '--stat', '--summary'
+ return GRun('apply', '--stat', '--summary'
).raw_input(diff(files, rev1, rev2)).raw_output()
def files(rev1, rev2, diff_flags = []):
"""
result = []
- for line in GRun('git-diff-tree', *(diff_flags + ['-r', rev1, rev2])
+ for line in GRun('diff-tree', *(diff_flags + ['-r', rev1, rev2])
).output_lines():
result.append('%s %s' % tuple(line.split(' ', 4)[-1].split('\t', 1)))
"""
result = []
- for line in GRun('git-diff-tree', '-r', rev1, rev2).output_lines():
+ for line in GRun('diff-tree', '-r', rev1, rev2).output_lines():
result.append(line.split(' ', 4)[-1].split('\t', 1)[-1])
return '\n'.join(result)
-def pretty_commit(commit_id = 'HEAD', diff_flags = []):
+def pretty_commit(commit_id = 'HEAD', flags = []):
"""Return a given commit (log + diff)
"""
- return GRun('git-diff-tree',
- *(diff_flags
- + ['--cc', '--always', '--pretty', '-r', commit_id])
- ).raw_output()
+ return GRun('show', *(flags + [commit_id])).raw_output()
def checkout(files = None, tree_id = None, force = False):
"""Check out the given or all files
"""
if tree_id:
try:
- GRun('git-read-tree', '--reset', tree_id).run()
+ GRun('read-tree', '--reset', tree_id).run()
except GitRunException:
- raise GitException, 'Failed git-read-tree --reset %s' % tree_id
+ raise GitException, 'Failed "git read-tree" --reset %s' % tree_id
- cmd = ['git-checkout-index', '-q', '-u']
+ cmd = ['checkout-index', '-q', '-u']
if force:
cmd.append('-f')
if files:
def switch(tree_id, keep = False):
"""Switch the tree to the given id
"""
- if not keep:
+ if keep:
+ # only update the index while keeping the local changes
+ GRun('read-tree', tree_id).run()
+ else:
refresh_index()
try:
- GRun('git-read-tree', '-u', '-m', get_head(), tree_id).run()
+ GRun('read-tree', '-u', '-m', get_head(), tree_id).run()
except GitRunException:
- raise GitException, 'git-read-tree failed (local changes maybe?)'
+ raise GitException, 'read-tree failed (local changes maybe?)'
__set_head(tree_id)
__set_head(tree_id)
def fetch(repository = 'origin', refspec = None):
- """Fetches changes from the remote repository, using 'git-fetch'
+ """Fetches changes from the remote repository, using 'git fetch'
by default.
"""
# we update the HEAD
command = config.get('branch.%s.stgit.fetchcmd' % get_head_file()) or \
config.get('stgit.fetchcmd')
- GRun(*(command.split() + args)).run()
+ Run(*(command.split() + args)).run()
def pull(repository = 'origin', refspec = None):
- """Fetches changes from the remote repository, using 'git-pull'
+ """Fetches changes from the remote repository, using 'git pull'
by default.
"""
# we update the HEAD
command = config.get('branch.%s.stgit.pullcmd' % get_head_file()) or \
config.get('stgit.pullcmd')
- GRun(*(command.split() + args)).run()
+ Run(*(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()
+ Run(*(command.split() + args)).run()
+ else:
+ # default rebasing
+ reset(tree_id = tree_id)
def repack():
"""Repack all objects into a single pack
"""
- GRun('git-repack', '-a', '-d', '-f').run()
+ GRun('repack', '-a', '-d', '-f').run()
def apply_patch(filename = None, diff = None, base = None,
fail_dump = True):
refresh_index()
try:
- GRun('git-apply', '--index').raw_input(diff).no_output()
+ GRun('apply', '--index').raw_input(diff).no_output()
except GitRunException:
if base:
switch(orig_head)
def clone(repository, local_dir):
"""Clone a remote repository. At the moment, just use the
- 'git-clone' script
+ 'git clone' script
"""
- GRun('git-clone', repository, local_dir).run()
+ GRun('clone', repository, local_dir).run()
def modifying_revs(files, base_rev, head_rev):
"""Return the revisions from the list modifying the given files."""
- return GRun('git-rev-list', '%s..%s' % (base_rev, head_rev), '--', *files
+ return GRun('rev-list', '%s..%s' % (base_rev, head_rev), '--', *files
).output_lines()
def refspec_localpart(refspec):
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:
+ out.warn('No for-merge remote head found in FETCH_HEAD')
+
# here we are sure to have a single fetch_head
return fetch_head
"""Return a list of all refs in the current repository.
"""
- return [line.split()[1] for line in GRun('git-show-ref').output_lines()]
+ return [line.split()[1] for line in GRun('show-ref').output_lines()]
~mdw / stgit / blobdiff