import re
import shutil
import stat
+import zipfile
+import zlib
+import ctypes
try:
from subprocess import CalledProcessError
path = os.getcwd()
os.environ['PWD'] = path
+def calcDiskFree():
+ """Return free space in bytes on the disk of the given dirname."""
+ if platform.system() == 'Windows':
+ free_bytes = ctypes.c_ulonglong(0)
+ ctypes.windll.kernel32.GetDiskFreeSpaceExW(ctypes.c_wchar_p(os.getcwd()), None, None, ctypes.pointer(free_bytes))
+ return free_bytes.value
+ else:
+ st = os.statvfs(os.getcwd())
+ return st.f_bavail * st.f_frsize
+
def die(msg):
if verbose:
raise Exception(msg)
# assume it failed because @... was invalid changelist
return True
-def system(cmd):
+def system(cmd, ignore_error=False):
expand = isinstance(cmd,basestring)
if verbose:
sys.stderr.write("executing %s\n" % str(cmd))
retcode = subprocess.call(cmd, shell=expand)
- if retcode:
+ if retcode and not ignore_error:
raise CalledProcessError(retcode, cmd)
+ return retcode
+
def p4_system(cmd):
"""Specifically invoke p4 as the system command. """
real_cmd = p4_build_cmd(cmd)
return clientPath
def currentGitBranch():
- return read_pipe("git name-rev HEAD").split(" ")[1].strip()
+ retcode = system(["git", "symbolic-ref", "-q", "HEAD"], ignore_error=True)
+ if retcode != 0:
+ # on a detached head
+ return None
+ else:
+ return read_pipe(["git", "name-rev", "HEAD"]).split(" ")[1].strip()
def isValidGitDir(path):
if (os.path.exists(path + "/HEAD")
_gitConfig = {}
-def gitConfig(key):
+def gitConfig(key, typeSpecifier=None):
if not _gitConfig.has_key(key):
- cmd = [ "git", "config", key ]
+ cmd = [ "git", "config" ]
+ if typeSpecifier:
+ cmd += [ typeSpecifier ]
+ cmd += [ key ]
s = read_pipe(cmd, ignore_error=True)
_gitConfig[key] = s.strip()
return _gitConfig[key]
in the config."""
if not _gitConfig.has_key(key):
- cmd = [ "git", "config", "--bool", key ]
+ _gitConfig[key] = gitConfig(key, '--bool') == "true"
+ return _gitConfig[key]
+
+def gitConfigInt(key):
+ if not _gitConfig.has_key(key):
+ cmd = [ "git", "config", "--int", key ]
s = read_pipe(cmd, ignore_error=True)
v = s.strip()
- _gitConfig[key] = v == "true"
+ try:
+ _gitConfig[key] = int(gitConfig(key, '--int'))
+ except ValueError:
+ _gitConfig[key] = None
return _gitConfig[key]
def gitConfigList(key):
if not _gitConfig.has_key(key):
s = read_pipe(["git", "config", "--get-all", key], ignore_error=True)
_gitConfig[key] = s.strip().split(os.linesep)
+ if _gitConfig[key] == ['']:
+ _gitConfig[key] = []
return _gitConfig[key]
def p4BranchesInGit(branchesAreInRemotes=True):
m = re.search("[*#@%]", path)
return m is not None
+class LargeFileSystem(object):
+ """Base class for large file system support."""
+
+ def __init__(self, writeToGitStream):
+ self.largeFiles = set()
+ self.writeToGitStream = writeToGitStream
+
+ def generatePointer(self, cloneDestination, contentFile):
+ """Return the content of a pointer file that is stored in Git instead of
+ the actual content."""
+ assert False, "Method 'generatePointer' required in " + self.__class__.__name__
+
+ def pushFile(self, localLargeFile):
+ """Push the actual content which is not stored in the Git repository to
+ a server."""
+ assert False, "Method 'pushFile' required in " + self.__class__.__name__
+
+ def hasLargeFileExtension(self, relPath):
+ return reduce(
+ lambda a, b: a or b,
+ [relPath.endswith('.' + e) for e in gitConfigList('git-p4.largeFileExtensions')],
+ False
+ )
+
+ def generateTempFile(self, contents):
+ contentFile = tempfile.NamedTemporaryFile(prefix='git-p4-large-file', delete=False)
+ for d in contents:
+ contentFile.write(d)
+ contentFile.close()
+ return contentFile.name
+
+ def exceedsLargeFileThreshold(self, relPath, contents):
+ if gitConfigInt('git-p4.largeFileThreshold'):
+ contentsSize = sum(len(d) for d in contents)
+ if contentsSize > gitConfigInt('git-p4.largeFileThreshold'):
+ return True
+ if gitConfigInt('git-p4.largeFileCompressedThreshold'):
+ contentsSize = sum(len(d) for d in contents)
+ if contentsSize <= gitConfigInt('git-p4.largeFileCompressedThreshold'):
+ return False
+ contentTempFile = self.generateTempFile(contents)
+ compressedContentFile = tempfile.NamedTemporaryFile(prefix='git-p4-large-file', delete=False)
+ zf = zipfile.ZipFile(compressedContentFile.name, mode='w')
+ zf.write(contentTempFile, compress_type=zipfile.ZIP_DEFLATED)
+ zf.close()
+ compressedContentsSize = zf.infolist()[0].compress_size
+ os.remove(contentTempFile)
+ os.remove(compressedContentFile.name)
+ if compressedContentsSize > gitConfigInt('git-p4.largeFileCompressedThreshold'):
+ return True
+ return False
+
+ def addLargeFile(self, relPath):
+ self.largeFiles.add(relPath)
+
+ def removeLargeFile(self, relPath):
+ self.largeFiles.remove(relPath)
+
+ def isLargeFile(self, relPath):
+ return relPath in self.largeFiles
+
+ def processContent(self, git_mode, relPath, contents):
+ """Processes the content of git fast import. This method decides if a
+ file is stored in the large file system and handles all necessary
+ steps."""
+ if self.exceedsLargeFileThreshold(relPath, contents) or self.hasLargeFileExtension(relPath):
+ contentTempFile = self.generateTempFile(contents)
+ (git_mode, contents, localLargeFile) = self.generatePointer(contentTempFile)
+
+ # Move temp file to final location in large file system
+ largeFileDir = os.path.dirname(localLargeFile)
+ if not os.path.isdir(largeFileDir):
+ os.makedirs(largeFileDir)
+ shutil.move(contentTempFile, localLargeFile)
+ self.addLargeFile(relPath)
+ if gitConfigBool('git-p4.largeFilePush'):
+ self.pushFile(localLargeFile)
+ if verbose:
+ sys.stderr.write("%s moved to large file system (%s)\n" % (relPath, localLargeFile))
+ return (git_mode, contents)
+
+class MockLFS(LargeFileSystem):
+ """Mock large file system for testing."""
+
+ def generatePointer(self, contentFile):
+ """The pointer content is the original content prefixed with "pointer-".
+ The local filename of the large file storage is derived from the file content.
+ """
+ with open(contentFile, 'r') as f:
+ content = next(f)
+ gitMode = '100644'
+ pointerContents = 'pointer-' + content
+ localLargeFile = os.path.join(os.getcwd(), '.git', 'mock-storage', 'local', content[:-1])
+ return (gitMode, pointerContents, localLargeFile)
+
+ def pushFile(self, localLargeFile):
+ """The remote filename of the large file storage is the same as the local
+ one but in a different directory.
+ """
+ remotePath = os.path.join(os.path.dirname(localLargeFile), '..', 'remote')
+ if not os.path.exists(remotePath):
+ os.makedirs(remotePath)
+ shutil.copyfile(localLargeFile, os.path.join(remotePath, os.path.basename(localLargeFile)))
+
+class GitLFS(LargeFileSystem):
+ """Git LFS as backend for the git-p4 large file system.
+ See https://git-lfs.github.com/ for details."""
+
+ def __init__(self, *args):
+ LargeFileSystem.__init__(self, *args)
+ self.baseGitAttributes = []
+
+ def generatePointer(self, contentFile):
+ """Generate a Git LFS pointer for the content. Return LFS Pointer file
+ mode and content which is stored in the Git repository instead of
+ the actual content. Return also the new location of the actual
+ content.
+ """
+ pointerProcess = subprocess.Popen(
+ ['git', 'lfs', 'pointer', '--file=' + contentFile],
+ stdout=subprocess.PIPE
+ )
+ pointerFile = pointerProcess.stdout.read()
+ if pointerProcess.wait():
+ os.remove(contentFile)
+ die('git-lfs pointer command failed. Did you install the extension?')
+ pointerContents = [i+'\n' for i in pointerFile.split('\n')[2:][:-1]]
+ oid = pointerContents[1].split(' ')[1].split(':')[1][:-1]
+ localLargeFile = os.path.join(
+ os.getcwd(),
+ '.git', 'lfs', 'objects', oid[:2], oid[2:4],
+ oid,
+ )
+ # LFS Spec states that pointer files should not have the executable bit set.
+ gitMode = '100644'
+ return (gitMode, pointerContents, localLargeFile)
+
+ def pushFile(self, localLargeFile):
+ uploadProcess = subprocess.Popen(
+ ['git', 'lfs', 'push', '--object-id', 'origin', os.path.basename(localLargeFile)]
+ )
+ if uploadProcess.wait():
+ die('git-lfs push command failed. Did you define a remote?')
+
+ def generateGitAttributes(self):
+ return (
+ self.baseGitAttributes +
+ [
+ '\n',
+ '#\n',
+ '# Git LFS (see https://git-lfs.github.com/)\n',
+ '#\n',
+ ] +
+ ['*.' + f.replace(' ', '[[:space:]]') + ' filter=lfs -text\n'
+ for f in sorted(gitConfigList('git-p4.largeFileExtensions'))
+ ] +
+ ['/' + f.replace(' ', '[[:space:]]') + ' filter=lfs -text\n'
+ for f in sorted(self.largeFiles) if not self.hasLargeFileExtension(f)
+ ]
+ )
+
+ def addLargeFile(self, relPath):
+ LargeFileSystem.addLargeFile(self, relPath)
+ self.writeToGitStream('100644', '.gitattributes', self.generateGitAttributes())
+
+ def removeLargeFile(self, relPath):
+ LargeFileSystem.removeLargeFile(self, relPath)
+ self.writeToGitStream('100644', '.gitattributes', self.generateGitAttributes())
+
+ def processContent(self, git_mode, relPath, contents):
+ if relPath == '.gitattributes':
+ self.baseGitAttributes = contents
+ return (git_mode, self.generateGitAttributes())
+ else:
+ return LargeFileSystem.processContent(self, git_mode, relPath, contents)
+
class Command:
def __init__(self):
self.usage = "usage: %prog [options]"
self.p4HasMoveCommand = p4_has_move_command()
self.branch = None
+ if gitConfig('git-p4.largeFileSystem'):
+ die("Large file system not supported for git-p4 submit command. Please remove it from config.")
+
def check(self):
if len(p4CmdList("opened ...")) > 0:
die("You have files opened with perforce! Close them before starting the sync.")
#
# Let the user edit the change description, then submit it.
#
- if self.edit_template(fileName):
- # read the edited message and submit
- ret = True
- tmpFile = open(fileName, "rb")
- message = tmpFile.read()
- tmpFile.close()
- if self.isWindows:
- message = message.replace("\r\n", "\n")
- submitTemplate = message[:message.index(separatorLine)]
- p4_write_pipe(['submit', '-i'], submitTemplate)
-
- if self.preserveUser:
- if p4User:
- # Get last changelist number. Cannot easily get it from
- # the submit command output as the output is
- # unmarshalled.
- changelist = self.lastP4Changelist()
- self.modifyChangelistUser(changelist, p4User)
-
- # The rename/copy happened by applying a patch that created a
- # new file. This leaves it writable, which confuses p4.
- for f in pureRenameCopy:
- p4_sync(f, "-f")
+ submitted = False
- else:
+ try:
+ if self.edit_template(fileName):
+ # read the edited message and submit
+ tmpFile = open(fileName, "rb")
+ message = tmpFile.read()
+ tmpFile.close()
+ if self.isWindows:
+ message = message.replace("\r\n", "\n")
+ submitTemplate = message[:message.index(separatorLine)]
+ p4_write_pipe(['submit', '-i'], submitTemplate)
+
+ if self.preserveUser:
+ if p4User:
+ # Get last changelist number. Cannot easily get it from
+ # the submit command output as the output is
+ # unmarshalled.
+ changelist = self.lastP4Changelist()
+ self.modifyChangelistUser(changelist, p4User)
+
+ # The rename/copy happened by applying a patch that created a
+ # new file. This leaves it writable, which confuses p4.
+ for f in pureRenameCopy:
+ p4_sync(f, "-f")
+ submitted = True
+
+ finally:
# skip this patch
- ret = False
- print "Submission cancelled, undoing p4 changes."
- for f in editedFiles:
- p4_revert(f)
- for f in filesToAdd:
- p4_revert(f)
- os.remove(f)
- for f in filesToDelete:
- p4_revert(f)
+ if not submitted:
+ print "Submission cancelled, undoing p4 changes."
+ for f in editedFiles:
+ p4_revert(f)
+ for f in filesToAdd:
+ p4_revert(f)
+ os.remove(f)
+ for f in filesToDelete:
+ p4_revert(f)
os.remove(fileName)
- return ret
+ return submitted
# Export git tags as p4 labels. Create a p4 label and then tag
# with that.
def run(self, args):
if len(args) == 0:
self.master = currentGitBranch()
- if len(self.master) == 0 or not gitBranchExists("refs/heads/%s" % self.master):
- die("Detecting current git branch failed!")
elif len(args) == 1:
self.master = args[0]
if not branchExists(self.master):
else:
return False
- allowSubmit = gitConfig("git-p4.allowSubmit")
- if len(allowSubmit) > 0 and not self.master in allowSubmit.split(","):
- die("%s is not in git-p4.allowSubmit" % self.master)
+ if self.master:
+ allowSubmit = gitConfig("git-p4.allowSubmit")
+ if len(allowSubmit) > 0 and not self.master in allowSubmit.split(","):
+ die("%s is not in git-p4.allowSubmit" % self.master)
[upstream, settings] = findUpstreamBranchPoint()
self.depotPath = settings['depot-paths'][0]
self.check()
commits = []
- for line in read_pipe_lines(["git", "rev-list", "--no-merges", "%s..%s" % (self.origin, self.master)]):
+ if self.master:
+ commitish = self.master
+ else:
+ commitish = 'HEAD'
+
+ for line in read_pipe_lines(["git", "rev-list", "--no-merges", "%s..%s" % (self.origin, commitish)]):
commits.append(line.strip())
commits.reverse()
self.clientSpecDirs = None
self.tempBranches = []
self.tempBranchLocation = "git-p4-tmp"
+ self.largeFileSystem = None
+
+ if gitConfig('git-p4.largeFileSystem'):
+ largeFileSystemConstructor = globals()[gitConfig('git-p4.largeFileSystem')]
+ self.largeFileSystem = largeFileSystemConstructor(
+ lambda git_mode, relPath, contents: self.writeToGitStream(git_mode, relPath, contents)
+ )
if gitConfig("git-p4.syncFromOrigin") == "false":
self.syncWithOrigin = False
return branches
+ def writeToGitStream(self, gitMode, relPath, contents):
+ self.gitStream.write('M %s inline %s\n' % (gitMode, relPath))
+ self.gitStream.write('data %d\n' % sum(len(d) for d in contents))
+ for d in contents:
+ self.gitStream.write(d)
+ self.gitStream.write('\n')
+
# output one file from the P4 stream
# - helper for streamP4Files
def streamOneP4File(self, file, contents):
relPath = self.stripRepoPath(file['depotFile'], self.branchPrefixes)
if verbose:
- sys.stderr.write("%s\n" % relPath)
+ size = int(self.stream_file['fileSize'])
+ sys.stdout.write('\r%s --> %s (%i MB)\n' % (file['depotFile'], relPath, size/1024/1024))
+ sys.stdout.flush()
(type_base, type_mods) = split_p4_type(file["type"])
if self.verbose:
print 'Path with non-ASCII characters detected. Used %s to encode: %s ' % (encoding, relPath)
- self.gitStream.write("M %s inline %s\n" % (git_mode, relPath))
-
- # total length...
- length = 0
- for d in contents:
- length = length + len(d)
+ if self.largeFileSystem:
+ (git_mode, contents) = self.largeFileSystem.processContent(git_mode, relPath, contents)
- self.gitStream.write("data %d\n" % length)
- for d in contents:
- self.gitStream.write(d)
- self.gitStream.write("\n")
+ self.writeToGitStream(git_mode, relPath, contents)
def streamOneP4Deletion(self, file):
relPath = self.stripRepoPath(file['path'], self.branchPrefixes)
if verbose:
- sys.stderr.write("delete %s\n" % relPath)
+ sys.stdout.write("delete %s\n" % relPath)
+ sys.stdout.flush()
self.gitStream.write("D %s\n" % relPath)
+ if self.largeFileSystem and self.largeFileSystem.isLargeFile(relPath):
+ self.largeFileSystem.removeLargeFile(relPath)
+
# handle another chunk of streaming data
def streamP4FilesCb(self, marshalled):
if marshalled["code"] == "error":
if "data" in marshalled:
err = marshalled["data"].rstrip()
+
+ if not err and 'fileSize' in self.stream_file:
+ required_bytes = int((4 * int(self.stream_file["fileSize"])) - calcDiskFree())
+ if required_bytes > 0:
+ err = 'Not enough space left on %s! Free at least %i MB.' % (
+ os.getcwd(), required_bytes/1024/1024
+ )
+
if err:
f = None
if self.stream_have_file_info:
# 'data' field we need to append to our array
for k in marshalled.keys():
if k == 'data':
+ if 'streamContentSize' not in self.stream_file:
+ self.stream_file['streamContentSize'] = 0
+ self.stream_file['streamContentSize'] += len(marshalled['data'])
self.stream_contents.append(marshalled['data'])
else:
self.stream_file[k] = marshalled[k]
+ if (verbose and
+ 'streamContentSize' in self.stream_file and
+ 'fileSize' in self.stream_file and
+ 'depotFile' in self.stream_file):
+ size = int(self.stream_file["fileSize"])
+ if size > 0:
+ progress = 100*self.stream_file['streamContentSize']/size
+ sys.stdout.write('\r%s %d%% (%i MB)' % (self.stream_file['depotFile'], progress, int(size/1024/1024)))
+ sys.stdout.flush()
+
self.stream_have_file_info = True
# Stream directly from "p4 files" into "git fast-import"
filesToDelete = []
for f in files:
- # if using a client spec, only add the files that have
- # a path in the client
- if self.clientSpecDirs:
- if self.clientSpecDirs.map_in_client(f['path']) == "":
- continue
-
filesForCommit.append(f)
if f['action'] in self.delete_actions:
filesToDelete.append(f)
gitStream.write(description)
gitStream.write("\n")
+ def inClientSpec(self, path):
+ if not self.clientSpecDirs:
+ return True
+ inClientSpec = self.clientSpecDirs.map_in_client(path)
+ if not inClientSpec and self.verbose:
+ print('Ignoring file outside of client spec: {0}'.format(path))
+ return inClientSpec
+
+ def hasBranchPrefix(self, path):
+ if not self.branchPrefixes:
+ return True
+ hasPrefix = [p for p in self.branchPrefixes
+ if p4PathStartsWith(path, p)]
+ if hasPrefix and self.verbose:
+ print('Ignoring file outside of prefix: {0}'.format(path))
+ return hasPrefix
+
def commit(self, details, files, branch, parent = ""):
epoch = details["time"]
author = details["user"]
if self.verbose:
- print "commit into %s" % branch
-
- # start with reading files; if that fails, we should not
- # create a commit.
- new_files = []
- for f in files:
- if [p for p in self.branchPrefixes if p4PathStartsWith(f['path'], p)]:
- new_files.append (f)
- else:
- sys.stderr.write("Ignoring file outside of prefix: %s\n" % f['path'])
+ print('commit into {0}'.format(branch))
if self.clientSpecDirs:
self.clientSpecDirs.update_client_spec_path_cache(files)
+ files = [f for f in files
+ if self.inClientSpec(f['path']) and self.hasBranchPrefix(f['path'])]
+
+ if not files and not gitConfigBool('git-p4.keepEmptyCommits'):
+ print('Ignoring revision {0} as it would produce an empty commit.'
+ .format(details['change']))
+ return
+
self.gitStream.write("commit %s\n" % branch)
self.gitStream.write("mark :%s\n" % details["change"])
self.committedChanges.add(int(details["change"]))
print "parent %s" % parent
self.gitStream.write("from %s\n" % parent)
- self.streamP4Files(new_files)
+ self.streamP4Files(files)
self.gitStream.write("\n")
change = int(details["change"])