def cmd_svn(self, subcmd):
"enable"
if subcmd not in ["enable"]:
raise TypeError
if "svn" in [x[0] for x in self._list_remotes()]:
raise YapError("A remote named 'svn' already exists")
if not run_command("git config svn-remote.svn.branches"):
raise YapError("Cannot currently enable in a repository with svn branches")
url = get_output("git config svn-remote.svn.url")
if not url:
raise YapError("Not a git-svn repository?")
fetch = get_output("git config svn-remote.svn.fetch")
assert fetch
lhs, rhs = fetch[0].split(':')
rev = get_output("git rev-parse %s" % rhs)
assert rev
run_safely("git update-ref refs/remotes/svn/trunk %s" % rev[0])
url = '/'.join((url[0], lhs))
self._configure_repo(url)
run_safely("git update-ref -d %s %s" % (rhs, rev[0]))
def _create_tagged_blob(self):
keys = dict()
for i in get_output("git config --list | grep ^svn-remote."):
k, v = i.split('=')
keys[k] = v
blob = RepoBlob(keys)
for b in get_output("git for-each-ref --format='%(refname)' 'refs/remotes/svn'"):
b = b.replace('refs/remotes/svn/', '')
blob.add_metadata(b)
fd_w, fd_r = os.popen2("git hash-object -w --stdin")
pickle.dump(blob, fd_w)
fd_w.close()
hash = fd_r.readline().strip()
run_safely("git tag -f yap-svn %s" % hash)
def add_metadata(self, branch):
assert branch not in self.metadata
gitdir = get_output("git rev-parse --git-dir")
assert gitdir
revmap = os.path.join(gitdir[0], "svn", "svn", branch, ".rev_map*")
revmap = glob.glob(revmap)
if not revmap:
return
uuid = revmap[0].split('.')[-1]
if self.uuid is None:
self.uuid = uuid
assert self.uuid == uuid
rev = get_output("git rev-parse refs/remotes/svn/%s" % branch)
data = file(revmap[0]).read()
self.metadata[branch] = rev[0], data
def cmd_switch(self, *args, **flags):
super(TCommitPlugin, self).cmd_switch(*args, **flags)
branch = get_output("git symbolic-ref HEAD")
if branch[0] in self._get_branches():
self.cmd_uncommit()
self._remove_branch(branch[0])
def _lock_branch(self, branch, locked_by):
repo = get_output('git rev-parse --git-dir')[0]
dir = os.path.join(repo, 'yap', 'lock')
try:
os.makedirs(dir)
except OSError:
pass
fd, tmplock = tempfile.mkstemp("yap", dir=dir)
try:
os.write(fd, locked_by)
os.close(fd)
while True:
lockfile = os.path.join(dir, branch.replace('/', '\/'))
try:
os.link(tmplock, lockfile)
break
except OSError, e:
try:
fd = file(lockfile)
except:
raise e
user = fd.readline()
# If the workdir has been deleted, break his lock
if os.access(user, os.R_OK):
raise YapError("That branch is being used by an existing workdir")
os.unlink(lockfile)
continue
finally:
os.unlink(tmplock)
def _get_branches(self):
repo = get_output("git rev-parse --git-dir")
state_file = os.path.join(repo[0], 'yap', 'tcommit')
try:
b = pickle.load(file(state_file))
except IOError:
b = set()
return b
def _remove_branch(self, branch):
repo = get_output("git rev-parse --git-dir")
if not repo:
return
state_file = os.path.join(repo[0], 'yap', 'tcommit')
b = self._get_branches()
b.remove(branch)
pickle.dump(b, file(state_file, 'w'))
def _unlock_svn(self):
repo = get_output('git rev-parse --git-dir')[0]
dir = os.path.join(repo, 'yap')
lockfile = os.path.join(dir, 'svn-lock')
try:
os.unlink(lockfile)
except OSError:
pass
def cmd_workdir(self, branch, workdir=None):
"<branch> [workdir]"
self._check_git()
branches = get_output("git for-each-ref --format='%(refname)' 'refs/heads'")
if 'refs/heads/%s' % branch not in branches:
raise YapError("Not a branch: %s" % branch)
current = get_output("git symbolic-ref HEAD")[0]
repodir = self._get_repodir()
repo = os.path.join(repodir, '.git')
if workdir is None:
repoparent, reponame = os.path.split(repodir)
workdir = os.path.join(repoparent, "%s-%s" % (reponame, branch))
# Make sure the current branch is locked
try:
self._lock_branch(current.replace('refs/heads/', ''), repodir)
except:
pass
self._lock_branch(branch, workdir)
# If we fail after this point, unlock the branch
try:
try:
os.mkdir(workdir)
except OSError, e:
raise YapError("Can't create new workdir: %s (%s)" % (workdir, e))
os.chdir(workdir)
os.mkdir(".git")
os.chdir(".git")
for x in ["config", "refs", "logs/refs", "objects", "info",
"hooks", "packed-refs", "remotes", "yap", "svn"]:
if os.path.dirname(x):
os.makedirs(os.path.dirname(x))
os.symlink(os.path.join(repo, x), x)
run_safely("cp %s HEAD" % os.path.join(repo, 'HEAD'))
os.chdir("..")
run_safely("git symbolic-ref HEAD refs/heads/%s" % branch)
self.cmd_revert(**{'-a': 1})
def _resolve_svn_rev(self, revnum):
rev = None
gitdir = get_output("git rev-parse --git-dir")
assert gitdir
# Work with whateven svn remote is configured
remotes = get_output("git config --get-regexp 'svn-remote.*.fetch'")
assert remotes
revmaps = []
for remote in remotes:
remote = remote.split(' ')
remote = remote[1].split(':')
refspec = remote[1]
remote = remote[1].split('/')
remote = remote[2]
path = os.path.join(gitdir[0], "svn", remote,
"*", ".rev_map*")
revmaps += glob.glob(path)
path = os.path.join(gitdir[0], "svn", refspec, ".rev_map*")
revmaps += glob.glob(path)
for f in revmaps:
rm = SVNRevMap(f)
idx = bisect.bisect_left(rm, revnum)
if idx >= len(rm) or rm[idx] != revnum:
continue
revnum, rev = rm.get_record(idx)
if rev == "0" * 40:
continue
break
if not rev:
rev = get_output("git svn find-rev r%d 2>/dev/null" % revnum)
if not rev:
rev = None
return rev
def _unlock_branch(self, branch):
repo = get_output('git rev-parse --git-dir')[0]
dir = os.path.join(repo, 'yap', 'lock')
try:
os.makedirs(dir)
except OSError:
pass
lockfile = os.path.join(dir, branch.replace('/', '\/'))
try:
os.unlink(lockfile)
except OSError:
pass
def cmd_commit(self, *args, **flags):
if '-t' in flags:
override = True
args = []
flags = {'-a': 1, '-m': 'yap wip'}
else:
override = False
super(TCommitPlugin, self).cmd_commit(*args, **flags)
if override is True:
branch = get_output("git symbolic-ref HEAD")
if branch:
self._add_branch(branch[0])
def _lock_svn(self):
repo = get_output('git rev-parse --git-dir')[0]
dir = os.path.join(repo, 'yap')
fd, tmplock = tempfile.mkstemp("yap", dir=dir)
try:
os.close(fd)
lockfile = os.path.join(dir, 'svn-lock')
try:
os.link(tmplock, lockfile)
except OSError:
raise YapError("A subversion operation is already in progress")
finally:
os.unlink(tmplock)
def _add_branch(self, branch):
repo = get_output("git rev-parse --git-dir")
if not repo:
return
dir = os.path.join(repo[0], 'yap')
try:
os.mkdir(dir)
except OSError:
pass
state_file = os.path.join(dir, 'tcommit')
b = self._get_branches()
b.add(branch)
pickle.dump(b, file(state_file, 'w'))
def _filter_log(self, commit):
commit = super(SvnPlugin, self)._filter_log(commit)
new = []
for line in commit:
if line.strip().startswith("git-svn-id:"):
while not new[-1].strip():
new = new[:-1]
urlrev = line.strip().split(' ')[1]
url, rev = urlrev.split('@')
m = re.search("commit ([0-9a-f]+)", commit[0])
if m is None:
continue
hash = m.group(1)
if self._svn_next_rev != hash:
h2 = self._resolve_svn_rev(int(rev))
if h2 != hash:
continue
next_hash = get_output("git rev-parse --verify %s^ 2>/dev/null" % hash)
if next_hash:
self._svn_next_rev = next_hash[0]
else:
self._svn_next_rev = None
root = get_output("git config svn-remote.svn.url")
assert root
url = url.replace(root[0], '')
if stdout_is_tty():
new.insert(1, "\033[32mSubversion: r%s %s\033[0m\n" % (rev, url))
else:
new.insert(1, "Subversion: r%s %s\n" % (rev, url))
continue
new.append(line)
return new
def cmd_switch(self, branch, *args, **flags):
self._check_git()
current = get_output("git symbolic-ref HEAD")[0]
repodir = self._get_repodir()
self._lock_branch(branch, repodir)
try:
super(WorkdirPlugin, self).cmd_switch(branch, *args, **flags)
except:
self._unlock_branch(branch)
raise
self._unlock_branch(current.replace('refs/heads/', ''))
def _cleanup_branches(self):
for b in get_output("git for-each-ref --format='%(refname)' 'refs/remotes/svn/*@*'"):
head = b.replace('refs/remotes/svn/', '')
path = os.path.join(".git", "svn", "svn", head)
try:
files = os.listdir(path)
for f in files:
os.unlink(os.path.join(path, f))
os.rmdir(path)
except OSError:
pass
path = os.path.join(".git", "svn", "refs", "remotes", "svn", head)
try:
files = os.listdir(path)
for f in files:
os.unlink(os.path.join(path, f))
os.rmdir(path)
except OSError:
pass
ref = get_output("git rev-parse %s" % b)
if ref:
run_safely("git update-ref -d %s %s" % (b, ref[0]))
def cmd_clone(self, *args, **flags):
handled = True
if not args:
handled = False
if (handled and not args[0].startswith("http")
and not args[0].startswith("svn")
and not args[0].startswith("file://")):
handled = False
if handled and run_command("svn info %s" % args[0]):
handled = False
if handled:
self._clone_svn(*args, **flags)
else:
super(SvnPlugin, self).cmd_clone(*args, **flags)
if self._enabled():
# nothing to do
return
run_safely("git fetch origin --tags")
hash = get_output("git rev-parse --verify refs/tags/yap-svn 2>/dev/null")
if not hash:
return
fd = os.popen("git cat-file blob %s" % hash[0])
blob = pickle.load(fd)
for k, v in blob.keys.items():
run_safely("git config %s %s" % (k, v))
self.cmd_repo("svn", blob.keys['svn-remote.svn.url'])
os.system("git config yap.svn.enabled 1")
run_safely("git fetch origin 'refs/remotes/svn/*:refs/remotes/svn/*'")
for b in blob.metadata.keys():
branch = os.path.join(".git", "svn", "svn", b)
os.makedirs(branch)
fd = file(os.path.join(branch, ".rev_map.%s" % blob.uuid), "w")
rev, metadata = blob.metadata[b]
fd.write(metadata)
branch = os.path.join(".git", "svn", "refs", "remotes", "svn", b)
os.makedirs(branch)
fd = file(os.path.join(branch, ".rev_map.%s" % blob.uuid), "w")
rev, metadata = blob.metadata[b]
fd.write(metadata)
run_command("git update-ref refs/remotes/svn/%s %s" % (b, rev))
def cmd_push(self, *args, **flags):
if self._applicable(args):
if len (args) >= 2:
merge = args[1]
else:
current = get_output("git symbolic-ref HEAD")
if not current:
raise YapError("Not on a branch!")
current = current[0].replace('refs/heads/', '')
remote, merge = self._get_tracking(current)
if remote != "svn":
raise YapError("Need a branch name")
self._push_svn(merge, **flags)
return
super(SvnPlugin, self).cmd_push(*args, **flags)
def _applicable(self, args):
if not self._enabled():
return False
if args and args[0] == 'svn':
return True
if not args:
current = get_output("git symbolic-ref HEAD")
if not current:
raise YapError("Not on a branch!")
current = current[0].replace('refs/heads/', '')
remote, merge = self._get_tracking(current)
if remote == "svn":
return True
return False
def _get_root(self, url):
root = get_output("svn info %s 2>/dev/null | gawk '/Repository Root:/{print $3}'" % url)
if not root:
raise YapError("Not an SVN repo: %s" % url)
return root[0]
def _enabled(self):
enabled = get_output("git config yap.svn.enabled")
return bool(enabled)
def _push_svn(self, branch, **flags):
if '-d' in flags:
raise YapError("Deleting svn branches not supported")
print "Verifying branch is up-to-date"
run_safely("git svn fetch svn")
branch = branch.replace('refs/heads/', '')
rev = get_output("git rev-parse --verify refs/remotes/svn/%s" % branch)
# Create the branch if requested
if not rev:
if '-c' not in flags:
raise YapError("No matching branch on the repo. Use -c to create a new branch there.")
src = get_output("git svn info | gawk '/URL:/{print $2}'")[0]
brev = get_output("git svn info | gawk '/Revision:/{print $2}'")[0]
root = get_output("git config svn-remote.svn.url")[0]
branch_path = get_output("git config svn-remote.svn.branches")[0].split(':')[0]
branch_path = branch_path.rstrip('/*')
dst = '/'.join((root, branch_path, branch))
# Create the branch in svn
run_safely("svn cp -r%s %s %s -m 'create branch %s'"
% (brev, src, dst, branch))
run_safely("git svn fetch svn")
rev = get_output("git rev-parse refs/remotes/svn/%s 2>/dev/null" % branch)
base = get_output("git svn find-rev r%s" % brev)
# Apply our commits to the new branch
try:
fd, tmpfile = tempfile.mkstemp("yap")
os.close(fd)
os.system("git format-patch -k --stdout '%s' > %s"
% (base[0], tmpfile))
start = get_output("git rev-parse HEAD")
self.cmd_point("refs/remotes/svn/%s"
% branch, **{'-f': True})
stat = os.stat(tmpfile)
size = stat[6]
if size > 0:
rc = run_command("git am -3 %s" % tmpfile)
if (rc):
self.cmd_point(start[0], **{'-f': True})
raise YapError("Failed to port changes to new svn branch")
finally:
os.unlink(tmpfile)
base = get_output("git merge-base HEAD %s" % rev[0])
if base[0] != rev[0]:
raise YapError("Branch not up-to-date. Update first.")
current = get_output("git symbolic-ref HEAD")
if not current:
raise YapError("Not on a branch!")
current = current[0].replace('refs/heads/', '')
self._confirm_push(current, branch, "svn")
if run_command("git update-index --refresh"):
raise YapError("Can't push with uncommitted changes")
master = get_output("git rev-parse --verify refs/heads/master 2>/dev/null")
os.system("git svn dcommit")
run_safely("git svn rebase")
if not master:
master = get_output("git rev-parse --verify refs/heads/master 2>/dev/null")
if master:
run_safely("git update-ref -d refs/heads/master %s" % master[0])
def _get_repodir(self):
repo = get_output('git rev-parse --git-dir')[0]
if not repo.startswith('/'):
repo = os.path.join(os.getcwd(), repo)
repodir = os.path.dirname(repo)
return repodir
