4592 lines
168 KiB
Executable File

#!/usr/bin/env python
# -- A tool for bidirectional operation between a Perforce depot and git.
# Author: Simon Hausmann <>
# Copyright: 2007 Simon Hausmann <>
# 2007 Trolltech ASA
# License: MIT <>
# pylint: disable=bad-whitespace
# pylint: disable=broad-except
# pylint: disable=consider-iterating-dictionary
# pylint: disable=disable
# pylint: disable=fixme
# pylint: disable=invalid-name
# pylint: disable=line-too-long
# pylint: disable=missing-docstring
# pylint: disable=no-self-use
# pylint: disable=superfluous-parens
# pylint: disable=too-few-public-methods
# pylint: disable=too-many-arguments
# pylint: disable=too-many-branches
# pylint: disable=too-many-instance-attributes
# pylint: disable=too-many-lines
# pylint: disable=too-many-locals
# pylint: disable=too-many-nested-blocks
# pylint: disable=too-many-statements
# pylint: disable=ungrouped-imports
# pylint: disable=unused-import
# pylint: disable=wrong-import-order
# pylint: disable=wrong-import-position
import struct
import sys
if sys.version_info.major < 3 and sys.version_info.minor < 7:
sys.stderr.write("git-p4: requires Python 2.7 or later.\n")
import ctypes
import errno
import functools
import glob
import marshal
import optparse
import os
import platform
import re
import shutil
import stat
import subprocess
import tempfile
import time
import zipfile
import zlib
# On python2.7 where raw_input() and input() are both availble,
# we want raw_input's semantics, but aliased to input for python3
# compatibility
# support basestring in python3
if raw_input and input:
input = raw_input
verbose = False
# Only labels/tags matching this will be imported/exported
defaultLabelRegexp = r'[a-zA-Z0-9_\-.]+$'
# The block size is reduced automatically if required
defaultBlockSize = 1 << 20
defaultMetadataDecodingStrategy = 'passthrough' if sys.version_info.major == 2 else 'fallback'
defaultFallbackMetadataEncoding = 'cp1252'
p4_access_checked = False
re_ko_keywords = re.compile(br'\$(Id|Header)(:[^$\n]+)?\$')
re_k_keywords = re.compile(br'\$(Id|Header|Author|Date|DateTime|Change|File|Revision)(:[^$\n]+)?\$')
def format_size_human_readable(num):
"""Returns a number of units (typically bytes) formatted as a
human-readable string.
if num < 1024:
return '{:d} B'.format(num)
for unit in ["Ki", "Mi", "Gi", "Ti", "Pi", "Ei", "Zi"]:
num /= 1024.0
if num < 1024.0:
return "{:3.1f} {}B".format(num, unit)
return "{:.1f} YiB".format(num)
def p4_build_cmd(cmd):
"""Build a suitable p4 command line.
This consolidates building and returning a p4 command line into one
location. It means that hooking into the environment, or other
configuration can be done more easily.
real_cmd = ["p4"]
user = gitConfig("git-p4.user")
if len(user) > 0:
real_cmd += ["-u", user]
password = gitConfig("git-p4.password")
if len(password) > 0:
real_cmd += ["-P", password]
port = gitConfig("git-p4.port")
if len(port) > 0:
real_cmd += ["-p", port]
host = gitConfig("")
if len(host) > 0:
real_cmd += ["-H", host]
client = gitConfig("git-p4.client")
if len(client) > 0:
real_cmd += ["-c", client]
retries = gitConfigInt("git-p4.retries")
if retries is None:
# Perform 3 retries by default
retries = 3
if retries > 0:
# Provide a way to not pass this option by setting git-p4.retries to 0
real_cmd += ["-r", str(retries)]
real_cmd += cmd
# now check that we can actually talk to the server
global p4_access_checked
if not p4_access_checked:
p4_access_checked = True # suppress access checks in p4_check_access itself
return real_cmd
def git_dir(path):
"""Return TRUE if the given path is a git directory (/path/to/dir/.git).
This won't automatically add ".git" to a directory.
d = read_pipe(["git", "--git-dir", path, "rev-parse", "--git-dir"], True).strip()
if not d or len(d) == 0:
return None
return d
def chdir(path, is_client_path=False):
"""Do chdir to the given path, and set the PWD environment variable for use
by P4. It does not look at getcwd() output. Since we're not using the
shell, it is necessary to set the PWD environment variable explicitly.
Normally, expand the path to force it to be absolute. This addresses
the use of relative path names inside P4 settings, e.g.
P4CONFIG=.p4config. P4 does not simply open the filename as given; it
looks for .p4config using PWD.
If is_client_path, the path was handed to us directly by p4, and may be
a symbolic link. Do not call os.getcwd() in this case, because it will
cause p4 to think that PWD is not inside the client path.
if not is_client_path:
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
st = os.statvfs(os.getcwd())
return st.f_bavail * st.f_frsize
def die(msg):
"""Terminate execution. Make sure that any running child processes have
been wait()ed for before calling this.
if verbose:
raise Exception(msg)
sys.stderr.write(msg + "\n")
def prompt(prompt_text):
"""Prompt the user to choose one of the choices.
Choices are identified in the prompt_text by square brackets around a
single letter option.
choices = set( for m in re.finditer(r"\[(.)\]", prompt_text))
while True:
response = sys.stdin.readline().strip().lower()
if not response:
response = response[0]
if response in choices:
return response
# We need different encoding/decoding strategies for text data being passed
# around in pipes depending on python version
if bytes is not str:
# For python3, always encode and decode as appropriate
def decode_text_stream(s):
return s.decode() if isinstance(s, bytes) else s
def encode_text_stream(s):
return s.encode() if isinstance(s, str) else s
# For python2.7, pass read strings as-is, but also allow writing unicode
def decode_text_stream(s):
return s
def encode_text_stream(s):
return s.encode('utf_8') if isinstance(s, unicode) else s
class MetadataDecodingException(Exception):
def __init__(self, input_string):
self.input_string = input_string
def __str__(self):
return """Decoding perforce metadata failed!
The failing string was:
Consider setting the git-p4.metadataDecodingStrategy config option to
'fallback', to allow metadata to be decoded using a fallback encoding,
defaulting to cp1252.""".format(self.input_string)
encoding_fallback_warning_issued = False
encoding_escape_warning_issued = False
def metadata_stream_to_writable_bytes(s):
encodingStrategy = gitConfig('git-p4.metadataDecodingStrategy') or defaultMetadataDecodingStrategy
fallbackEncoding = gitConfig('git-p4.metadataFallbackEncoding') or defaultFallbackMetadataEncoding
if not isinstance(s, bytes):
return s.encode('utf_8')
if encodingStrategy == 'passthrough':
return s
return s
except UnicodeDecodeError:
if encodingStrategy == 'fallback' and fallbackEncoding:
global encoding_fallback_warning_issued
global encoding_escape_warning_issued
if not encoding_fallback_warning_issued:
print("\nCould not decode value as utf-8; using configured fallback encoding %s: %s" % (fallbackEncoding, s))
print("\n(this warning is only displayed once during an import)")
encoding_fallback_warning_issued = True
return s.decode(fallbackEncoding).encode('utf_8')
except Exception as exc:
if not encoding_escape_warning_issued:
print("\nCould not decode value with configured fallback encoding %s; escaping bytes over 127: %s" % (fallbackEncoding, s))
print("\n(this warning is only displayed once during an import)")
encoding_escape_warning_issued = True
escaped_bytes = b''
# bytes and strings work very differently in python2 vs python3...
if str is bytes:
for byte in s:
byte_number = struct.unpack('>B', byte)[0]
if byte_number > 127:
escaped_bytes += b'%'
escaped_bytes += hex(byte_number)[2:].upper()
escaped_bytes += byte
for byte_number in s:
if byte_number > 127:
escaped_bytes += b'%'
escaped_bytes += hex(byte_number).upper().encode()[2:]
escaped_bytes += bytes([byte_number])
return escaped_bytes
raise MetadataDecodingException(s)
def decode_path(path):
"""Decode a given string (bytes or otherwise) using configured path
encoding options.
encoding = gitConfig('git-p4.pathEncoding') or 'utf_8'
if bytes is not str:
return path.decode(encoding, errors='replace') if isinstance(path, bytes) else path
path = path.decode(encoding, errors='replace')
if verbose:
print('Path with non-ASCII characters detected. Used {} to decode: {}'.format(encoding, path))
return path
def run_git_hook(cmd, param=[]):
"""Execute a hook if the hook exists."""
args = ['git', 'hook', 'run', '--ignore-missing', cmd]
if param:
for p in param:
return == 0
def write_pipe(c, stdin, *k, **kw):
if verbose:
sys.stderr.write('Writing pipe: {}\n'.format(' '.join(c)))
p = subprocess.Popen(c, stdin=subprocess.PIPE, *k, **kw)
pipe = p.stdin
val = pipe.write(stdin)
if p.wait():
die('Command failed: {}'.format(' '.join(c)))
return val
def p4_write_pipe(c, stdin, *k, **kw):
real_cmd = p4_build_cmd(c)
if bytes is not str and isinstance(stdin, str):
stdin = encode_text_stream(stdin)
return write_pipe(real_cmd, stdin, *k, **kw)
def read_pipe_full(c, *k, **kw):
"""Read output from command. Returns a tuple of the return status, stdout
text and stderr text.
if verbose:
sys.stderr.write('Reading pipe: {}\n'.format(' '.join(c)))
p = subprocess.Popen(
c, stdout=subprocess.PIPE, stderr=subprocess.PIPE, *k, **kw)
out, err = p.communicate()
return (p.returncode, out, decode_text_stream(err))
def read_pipe(c, ignore_error=False, raw=False, *k, **kw):
"""Read output from command. Returns the output text on success. On
failure, terminates execution, unless ignore_error is True, when it
returns an empty string.
If raw is True, do not attempt to decode output text.
retcode, out, err = read_pipe_full(c, *k, **kw)
if retcode != 0:
if ignore_error:
out = ""
die('Command failed: {}\nError: {}'.format(' '.join(c), err))
if not raw:
out = decode_text_stream(out)
return out
def read_pipe_text(c, *k, **kw):
"""Read output from a command with trailing whitespace stripped. On error,
returns None.
retcode, out, err = read_pipe_full(c, *k, **kw)
if retcode != 0:
return None
return decode_text_stream(out).rstrip()
def p4_read_pipe(c, ignore_error=False, raw=False, *k, **kw):
real_cmd = p4_build_cmd(c)
return read_pipe(real_cmd, ignore_error, raw=raw, *k, **kw)
def read_pipe_lines(c, raw=False, *k, **kw):
if verbose:
sys.stderr.write('Reading pipe: {}\n'.format(' '.join(c)))
p = subprocess.Popen(c, stdout=subprocess.PIPE, *k, **kw)
pipe = p.stdout
lines = pipe.readlines()
if not raw:
lines = [decode_text_stream(line) for line in lines]
if pipe.close() or p.wait():
die('Command failed: {}'.format(' '.join(c)))
return lines
def p4_read_pipe_lines(c, *k, **kw):
"""Specifically invoke p4 on the command supplied."""
real_cmd = p4_build_cmd(c)
return read_pipe_lines(real_cmd, *k, **kw)
def p4_has_command(cmd):
"""Ask p4 for help on this command. If it returns an error, the command
does not exist in this version of p4.
real_cmd = p4_build_cmd(["help", cmd])
p = subprocess.Popen(real_cmd, stdout=subprocess.PIPE,
return p.returncode == 0
def p4_has_move_command():
"""See if the move command exists, that it supports -k, and that it has not
been administratively disabled. The arguments must be correct, but the
filenames do not have to exist. Use ones with wildcards so even if they
exist, it will fail.
if not p4_has_command("move"):
return False
cmd = p4_build_cmd(["move", "-k", "@from", "@to"])
p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = p.communicate()
err = decode_text_stream(err)
# return code will be 1 in either case
if err.find("Invalid option") >= 0:
return False
if err.find("disabled") >= 0:
return False
# assume it failed because @... was invalid changelist
return True
def system(cmd, ignore_error=False, *k, **kw):
if verbose:
sys.stderr.write("executing {}\n".format(
' '.join(cmd) if isinstance(cmd, list) else cmd))
retcode =, *k, **kw)
if retcode and not ignore_error:
raise subprocess.CalledProcessError(retcode, cmd)
return retcode
def p4_system(cmd, *k, **kw):
"""Specifically invoke p4 as the system command."""
real_cmd = p4_build_cmd(cmd)
retcode =, *k, **kw)
if retcode:
raise subprocess.CalledProcessError(retcode, real_cmd)
def die_bad_access(s):
die("failure accessing depot: {0}".format(s.rstrip()))
def p4_check_access(min_expiration=1):
"""Check if we can access Perforce - account still logged in."""
results = p4CmdList(["login", "-s"])
if len(results) == 0:
# should never get here: always get either some results, or a p4ExitCode
assert("could not parse response from perforce")
result = results[0]
if 'p4ExitCode' in result:
# p4 returned non-zero status, e.g. P4PORT invalid, or p4 not in path
die_bad_access("could not run p4")
code = result.get("code")
if not code:
# we get here if we couldn't connect and there was nothing to unmarshal
die_bad_access("could not connect")
elif code == "stat":
expiry = result.get("TicketExpiration")
if expiry:
expiry = int(expiry)
if expiry > min_expiration:
# ok to carry on
die_bad_access("perforce ticket expires in {0} seconds".format(expiry))
# account without a timeout - all ok
elif code == "error":
data = result.get("data")
if data:
die_bad_access("p4 error: {0}".format(data))
die_bad_access("unknown error")
elif code == "info":
die_bad_access("unknown error code {0}".format(code))
_p4_version_string = None
def p4_version_string():
"""Read the version string, showing just the last line, which hopefully is
the interesting version bit.
$ p4 -V
Perforce - The Fast Software Configuration Management System.
Copyright 1995-2011 Perforce Software. All rights reserved.
Rev. P4/NTX86/2011.1/393975 (2011/12/16).
global _p4_version_string
if not _p4_version_string:
a = p4_read_pipe_lines(["-V"])
_p4_version_string = a[-1].rstrip()
return _p4_version_string
def p4_integrate(src, dest):
p4_system(["integrate", "-Dt", wildcard_encode(src), wildcard_encode(dest)])
def p4_sync(f, *options):
p4_system(["sync"] + list(options) + [wildcard_encode(f)])
def p4_add(f):
"""Forcibly add file names with wildcards."""
if wildcard_present(f):
p4_system(["add", "-f", f])
p4_system(["add", f])
def p4_delete(f):
p4_system(["delete", wildcard_encode(f)])
def p4_edit(f, *options):
p4_system(["edit"] + list(options) + [wildcard_encode(f)])
def p4_revert(f):
p4_system(["revert", wildcard_encode(f)])
def p4_reopen(type, f):
p4_system(["reopen", "-t", type, wildcard_encode(f)])
def p4_reopen_in_change(changelist, files):
cmd = ["reopen", "-c", str(changelist)] + files
def p4_move(src, dest):
p4_system(["move", "-k", wildcard_encode(src), wildcard_encode(dest)])
def p4_last_change():
results = p4CmdList(["changes", "-m", "1"], skip_info=True)
return int(results[0]['change'])
def p4_describe(change, shelved=False):
"""Make sure it returns a valid result by checking for the presence of
field "time".
Return a dict of the results.
cmd = ["describe", "-s"]
if shelved:
cmd += ["-S"]
cmd += [str(change)]
ds = p4CmdList(cmd, skip_info=True)
if len(ds) != 1:
die("p4 describe -s %d did not return 1 result: %s" % (change, str(ds)))
d = ds[0]
if "p4ExitCode" in d:
die("p4 describe -s %d exited with %d: %s" % (change, d["p4ExitCode"],
if "code" in d:
if d["code"] == "error":
die("p4 describe -s %d returned error code: %s" % (change, str(d)))
if "time" not in d:
die("p4 describe -s %d returned no \"time\": %s" % (change, str(d)))
return d
def split_p4_type(p4type):
"""Canonicalize the p4 type and return a tuple of the base type, plus any
modifiers. See "p4 help filetypes" for a list and explanation.
p4_filetypes_historical = {
"ctempobj": "binary+Sw",
"ctext": "text+C",
"cxtext": "text+Cx",
"ktext": "text+k",
"kxtext": "text+kx",
"ltext": "text+F",
"tempobj": "binary+FSw",
"ubinary": "binary+F",
"uresource": "resource+F",
"uxbinary": "binary+Fx",
"xbinary": "binary+x",
"xltext": "text+Fx",
"xtempobj": "binary+Swx",
"xtext": "text+x",
"xunicode": "unicode+x",
"xutf16": "utf16+x",
if p4type in p4_filetypes_historical:
p4type = p4_filetypes_historical[p4type]
mods = ""
s = p4type.split("+")
base = s[0]
mods = ""
if len(s) > 1:
mods = s[1]
return (base, mods)
def p4_type(f):
"""Return the raw p4 type of a file (text, text+ko, etc)."""
results = p4CmdList(["fstat", "-T", "headType", wildcard_encode(f)])
return results[0]['headType']
def p4_keywords_regexp_for_type(base, type_mods):
"""Given a type base and modifier, return a regexp matching the keywords
that can be expanded in the file.
if base in ("text", "unicode", "binary"):
if "ko" in type_mods:
return re_ko_keywords
elif "k" in type_mods:
return re_k_keywords
return None
return None
def p4_keywords_regexp_for_file(file):
"""Given a file, return a regexp matching the possible RCS keywords that
will be expanded, or None for files with kw expansion turned off.
if not os.path.exists(file):
return None
type_base, type_mods = split_p4_type(p4_type(file))
return p4_keywords_regexp_for_type(type_base, type_mods)
def setP4ExecBit(file, mode):
"""Reopens an already open file and changes the execute bit to match the
execute bit setting in the passed in mode.
p4Type = "+x"
if not isModeExec(mode):
p4Type = getP4OpenedType(file)
p4Type = re.sub('^([cku]?)x(.*)', '\\1\\2', p4Type)
p4Type = re.sub('(.*?\+.*?)x(.*?)', '\\1\\2', p4Type)
if p4Type[-1] == "+":
p4Type = p4Type[0:-1]
p4_reopen(p4Type, file)
def getP4OpenedType(file):
"""Returns the perforce file type for the given file."""
result = p4_read_pipe(["opened", wildcard_encode(file)])
match = re.match(".*\((.+)\)( \*exclusive\*)?\r?$", result)
if match:
die("Could not determine file type for %s (result: '%s')" % (file, result))
def getP4Labels(depotPaths):
"""Return the set of all p4 labels."""
labels = set()
if not isinstance(depotPaths, list):
depotPaths = [depotPaths]
for l in p4CmdList(["labels"] + ["%s..." % p for p in depotPaths]):
label = l['label']
return labels
def getGitTags():
"""Return the set of all git tags."""
gitTags = set()
for line in read_pipe_lines(["git", "tag"]):
tag = line.strip()
return gitTags
_diff_tree_pattern = None
def parseDiffTreeEntry(entry):
"""Parses a single diff tree entry into its component elements.
See git-diff-tree(1) manpage for details about the format of the diff
output. This method returns a dictionary with the following elements:
src_mode - The mode of the source file
dst_mode - The mode of the destination file
src_sha1 - The sha1 for the source file
dst_sha1 - The sha1 fr the destination file
status - The one letter status of the diff (i.e. 'A', 'M', 'D', etc)
status_score - The score for the status (applicable for 'C' and 'R'
statuses). This is None if there is no score.
src - The path for the source file.
dst - The path for the destination file. This is only present for
copy or renames. If it is not present, this is None.
If the pattern is not matched, None is returned.
global _diff_tree_pattern
if not _diff_tree_pattern:
_diff_tree_pattern = re.compile(':(\d+) (\d+) (\w+) (\w+) ([A-Z])(\d+)?\t(.*?)((\t(.*))|$)')
match = _diff_tree_pattern.match(entry)
if match:
return {
return None
def isModeExec(mode):
"""Returns True if the given git mode represents an executable file,
otherwise False.
return mode[-3:] == "755"
class P4Exception(Exception):
"""Base class for exceptions from the p4 client."""
def __init__(self, exit_code):
self.p4ExitCode = exit_code
class P4ServerException(P4Exception):
"""Base class for exceptions where we get some kind of marshalled up result
from the server.
def __init__(self, exit_code, p4_result):
super(P4ServerException, self).__init__(exit_code)
self.p4_result = p4_result
self.code = p4_result[0]['code'] = p4_result[0]['data']
class P4RequestSizeException(P4ServerException):
"""One of the maxresults or maxscanrows errors."""
def __init__(self, exit_code, p4_result, limit):
super(P4RequestSizeException, self).__init__(exit_code, p4_result)
self.limit = limit
class P4CommandException(P4Exception):
"""Something went wrong calling p4 which means we have to give up."""
def __init__(self, msg):
self.msg = msg
def __str__(self):
return self.msg
def isModeExecChanged(src_mode, dst_mode):
return isModeExec(src_mode) != isModeExec(dst_mode)
def p4CmdList(cmd, stdin=None, stdin_mode='w+b', cb=None, skip_info=False,
errors_as_exceptions=False, *k, **kw):
cmd = p4_build_cmd(["-G"] + cmd)
if verbose:
sys.stderr.write("Opening pipe: {}\n".format(' '.join(cmd)))
# Use a temporary file to avoid deadlocks without
# subprocess.communicate(), which would put another copy
# of stdout into memory.
stdin_file = None
if stdin is not None:
stdin_file = tempfile.TemporaryFile(prefix='p4-stdin', mode=stdin_mode)
if not isinstance(stdin, list):
for i in stdin:
p4 = subprocess.Popen(
cmd, stdin=stdin_file, stdout=subprocess.PIPE, *k, **kw)
result = []
while True:
entry = marshal.load(p4.stdout)
if bytes is not str:
# Decode unmarshalled dict to use str keys and values, except for:
# - `data` which may contain arbitrary binary data
# - `desc` or `FullName` which may contain non-UTF8 encoded text handled below, eagerly converted to bytes
# - `depotFile[0-9]*`, `path`, or `clientFile` which may contain non-UTF8 encoded text, handled by decode_path()
decoded_entry = {}
for key, value in entry.items():
key = key.decode()
if isinstance(value, bytes) and not (key in ('data', 'desc', 'FullName', 'path', 'clientFile') or key.startswith('depotFile')):
value = value.decode()
decoded_entry[key] = value
# Parse out data if it's an error response
if decoded_entry.get('code') == 'error' and 'data' in decoded_entry:
decoded_entry['data'] = decoded_entry['data'].decode()
entry = decoded_entry
if skip_info:
if 'code' in entry and entry['code'] == 'info':
if 'desc' in entry:
entry['desc'] = metadata_stream_to_writable_bytes(entry['desc'])
if 'FullName' in entry:
entry['FullName'] = metadata_stream_to_writable_bytes(entry['FullName'])
if cb is not None:
except EOFError:
exitCode = p4.wait()
if exitCode != 0:
if errors_as_exceptions:
if len(result) > 0:
data = result[0].get('data')
if data:
m ='Too many rows scanned \(over (\d+)\)', data)
if not m:
m ='Request too large \(over (\d+)\)', data)
if m:
limit = int(
raise P4RequestSizeException(exitCode, result, limit)
raise P4ServerException(exitCode, result)
raise P4Exception(exitCode)
entry = {}
entry["p4ExitCode"] = exitCode
return result
def p4Cmd(cmd, *k, **kw):
list = p4CmdList(cmd, *k, **kw)
result = {}
for entry in list:
return result
def p4Where(depotPath):
if not depotPath.endswith("/"):
depotPath += "/"
depotPathLong = depotPath + "..."
outputList = p4CmdList(["where", depotPathLong])
output = None
for entry in outputList:
if "depotFile" in entry:
# Search for the base client side depot path, as long as it starts with the branch's P4 path.
# The base path always ends with "/...".
entry_path = decode_path(entry['depotFile'])
if entry_path.find(depotPath) == 0 and entry_path[-4:] == "/...":
output = entry
elif "data" in entry:
data = entry.get("data")
space = data.find(" ")
if data[:space] == depotPath:
output = entry
if output is None:
return ""
if output["code"] == "error":
return ""
clientPath = ""
if "path" in output:
clientPath = decode_path(output['path'])
elif "data" in output:
data = output.get("data")
lastSpace = data.rfind(b" ")
clientPath = decode_path(data[lastSpace + 1:])
if clientPath.endswith("..."):
clientPath = clientPath[:-3]
return clientPath
def currentGitBranch():
return read_pipe_text(["git", "symbolic-ref", "--short", "-q", "HEAD"])
def isValidGitDir(path):
return git_dir(path) is not None
def parseRevision(ref):
return read_pipe(["git", "rev-parse", ref]).strip()
def branchExists(ref):
rev = read_pipe(["git", "rev-parse", "-q", "--verify", ref],
return len(rev) > 0
def extractLogMessageFromGitCommit(commit):
logMessage = ""
# fixme: title is first line of commit, not 1st paragraph.
foundTitle = False
for log in read_pipe_lines(["git", "cat-file", "commit", commit]):
if not foundTitle:
if len(log) == 1:
foundTitle = True
logMessage += log
return logMessage
def extractSettingsGitLog(log):
values = {}
for line in log.split("\n"):
line = line.strip()
m ="^ *\[git-p4: (.*)\]$", line)
if not m:
assignments =':')
for a in assignments:
vals = a.split('=')
key = vals[0].strip()
val = ('='.join(vals[1:])).strip()
if val.endswith('\"') and val.startswith('"'):
val = val[1:-1]
values[key] = val
paths = values.get("depot-paths")
if not paths:
paths = values.get("depot-path")
if paths:
values['depot-paths'] = paths.split(',')
return values
def gitBranchExists(branch):
proc = subprocess.Popen(["git", "rev-parse", branch],
stderr=subprocess.PIPE, stdout=subprocess.PIPE)
return proc.wait() == 0
def gitUpdateRef(ref, newvalue):
subprocess.check_call(["git", "update-ref", ref, newvalue])
def gitDeleteRef(ref):
subprocess.check_call(["git", "update-ref", "-d", ref])
_gitConfig = {}
def gitConfig(key, typeSpecifier=None):
if key not in _gitConfig:
cmd = ["git", "config"]
if typeSpecifier:
cmd += [typeSpecifier]
cmd += [key]
s = read_pipe(cmd, ignore_error=True)
_gitConfig[key] = s.strip()
return _gitConfig[key]
def gitConfigBool(key):
"""Return a bool, using git config --bool. It is True only if the
variable is set to true, and False if set to false or not present
in the config.
if key not in _gitConfig:
_gitConfig[key] = gitConfig(key, '--bool') == "true"
return _gitConfig[key]
def gitConfigInt(key):
if key not in _gitConfig:
cmd = ["git", "config", "--int", key]
s = read_pipe(cmd, ignore_error=True)
v = s.strip()
_gitConfig[key] = int(gitConfig(key, '--int'))
except ValueError:
_gitConfig[key] = None
return _gitConfig[key]
def gitConfigList(key):
if key not in _gitConfig:
s = read_pipe(["git", "config", "--get-all", key], ignore_error=True)
_gitConfig[key] = s.strip().splitlines()
if _gitConfig[key] == ['']:
_gitConfig[key] = []
return _gitConfig[key]
def fullP4Ref(incomingRef, importIntoRemotes=True):
"""Standardize a given provided p4 ref value to a full git ref:
refs/foo/bar/branch -> use it exactly
p4/branch -> prepend refs/remotes/ or refs/heads/
branch -> prepend refs/remotes/p4/ or refs/heads/p4/"""
if incomingRef.startswith("refs/"):
return incomingRef
if importIntoRemotes:
prepend = "refs/remotes/"
prepend = "refs/heads/"
if not incomingRef.startswith("p4/"):
prepend += "p4/"
return prepend + incomingRef
def shortP4Ref(incomingRef, importIntoRemotes=True):
"""Standardize to a "short ref" if possible:
refs/foo/bar/branch -> ignore
refs/remotes/p4/branch or refs/heads/p4/branch -> shorten
p4/branch -> shorten"""
if importIntoRemotes:
longprefix = "refs/remotes/p4/"
longprefix = "refs/heads/p4/"
if incomingRef.startswith(longprefix):
return incomingRef[len(longprefix):]
if incomingRef.startswith("p4/"):
return incomingRef[3:]
return incomingRef
def p4BranchesInGit(branchesAreInRemotes=True):
"""Find all the branches whose names start with "p4/", looking
in remotes or heads as specified by the argument. Return
a dictionary of { branch: revision } for each one found.
The branch names are the short names, without any
"p4/" prefix.
branches = {}
cmdline = ["git", "rev-parse", "--symbolic"]
if branchesAreInRemotes:
for line in read_pipe_lines(cmdline):
line = line.strip()
# only import to p4/
if not line.startswith('p4/'):
# special symbolic ref to p4/master
if line == "p4/HEAD":
# strip off p4/ prefix
branch = line[len("p4/"):]
branches[branch] = parseRevision(line)
return branches
def branch_exists(branch):
"""Make sure that the given ref name really exists."""
cmd = ["git", "rev-parse", "--symbolic", "--verify", branch]
p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, _ = p.communicate()
out = decode_text_stream(out)
if p.returncode:
return False
# expect exactly one line of output: the branch name
return out.rstrip() == branch
def findUpstreamBranchPoint(head="HEAD"):
branches = p4BranchesInGit()
# map from depot-path to branch name
branchByDepotPath = {}
for branch in branches.keys():
tip = branches[branch]
log = extractLogMessageFromGitCommit(tip)
settings = extractSettingsGitLog(log)
if "depot-paths" in settings:
git_branch = "remotes/p4/" + branch
paths = ",".join(settings["depot-paths"])
branchByDepotPath[paths] = git_branch
if "change" in settings:
paths = paths + ";" + settings["change"]
branchByDepotPath[paths] = git_branch
settings = None
parent = 0
while parent < 65535:
commit = head + "~%s" % parent
log = extractLogMessageFromGitCommit(commit)
settings = extractSettingsGitLog(log)
if "depot-paths" in settings:
paths = ",".join(settings["depot-paths"])
if "change" in settings:
expaths = paths + ";" + settings["change"]
if expaths in branchByDepotPath:
return [branchByDepotPath[expaths], settings]
if paths in branchByDepotPath:
return [branchByDepotPath[paths], settings]
parent = parent + 1
return ["", settings]
def createOrUpdateBranchesFromOrigin(localRefPrefix="refs/remotes/p4/", silent=True):
if not silent:
print("Creating/updating branch(es) in %s based on origin branch(es)"
% localRefPrefix)
originPrefix = "origin/p4/"
for line in read_pipe_lines(["git", "rev-parse", "--symbolic", "--remotes"]):
line = line.strip()
if (not line.startswith(originPrefix)) or line.endswith("HEAD"):
headName = line[len(originPrefix):]
remoteHead = localRefPrefix + headName
originHead = line
original = extractSettingsGitLog(extractLogMessageFromGitCommit(originHead))
if 'depot-paths' not in original or 'change' not in original:
update = False
if not gitBranchExists(remoteHead):
if verbose:
print("creating %s" % remoteHead)
update = True
settings = extractSettingsGitLog(extractLogMessageFromGitCommit(remoteHead))
if 'change' in settings:
if settings['depot-paths'] == original['depot-paths']:
originP4Change = int(original['change'])
p4Change = int(settings['change'])
if originP4Change > p4Change:
print("%s (%s) is newer than %s (%s). "
"Updating p4 branch from origin."
% (originHead, originP4Change,
remoteHead, p4Change))
update = True
print("Ignoring: %s was imported from %s while "
"%s was imported from %s"
% (originHead, ','.join(original['depot-paths']),
remoteHead, ','.join(settings['depot-paths'])))
if update:
system(["git", "update-ref", remoteHead, originHead])
def originP4BranchesExist():
return gitBranchExists("origin") or gitBranchExists("origin/p4") or gitBranchExists("origin/p4/master")
def p4ParseNumericChangeRange(parts):
changeStart = int(parts[0][1:])
if parts[1] == '#head':
changeEnd = p4_last_change()
changeEnd = int(parts[1])
return (changeStart, changeEnd)
def chooseBlockSize(blockSize):
if blockSize:
return blockSize
return defaultBlockSize
def p4ChangesForPaths(depotPaths, changeRange, requestedBlockSize):
assert depotPaths
# Parse the change range into start and end. Try to find integer
# revision ranges as these can be broken up into blocks to avoid
# hitting server-side limits (maxrows, maxscanresults). But if
# that doesn't work, fall back to using the raw revision specifier
# strings, without using block mode.
if changeRange is None or changeRange == '':
changeStart = 1
changeEnd = p4_last_change()
block_size = chooseBlockSize(requestedBlockSize)
parts = changeRange.split(',')
assert len(parts) == 2
changeStart, changeEnd = p4ParseNumericChangeRange(parts)
block_size = chooseBlockSize(requestedBlockSize)
except ValueError:
changeStart = parts[0][1:]
changeEnd = parts[1]
if requestedBlockSize:
die("cannot use --changes-block-size with non-numeric revisions")
block_size = None
changes = set()
# Retrieve changes a block at a time, to prevent running
# into a MaxResults/MaxScanRows error from the server. If
# we _do_ hit one of those errors, turn down the block size
while True:
cmd = ['changes']
if block_size:
end = min(changeEnd, changeStart + block_size)
revisionRange = "%d,%d" % (changeStart, end)
revisionRange = "%s,%s" % (changeStart, changeEnd)
for p in depotPaths:
cmd += ["%s...@%s" % (p, revisionRange)]
# fetch the changes
result = p4CmdList(cmd, errors_as_exceptions=True)
except P4RequestSizeException as e:
if not block_size:
block_size = e.limit
elif block_size > e.limit:
block_size = e.limit
block_size = max(2, block_size // 2)
if verbose:
print("block size error, retrying with block size {0}".format(block_size))
except P4Exception as e:
die('Error retrieving changes description ({0})'.format(e.p4ExitCode))
# Insert changes in chronological order
for entry in reversed(result):
if 'change' not in entry:
if not block_size:
if end >= changeEnd:
changeStart = end + 1
changes = sorted(changes)
return changes
def p4PathStartsWith(path, prefix):
"""This method tries to remedy a potential mixed-case issue:
If UserA adds //depot/DirA/file1
and UserB adds //depot/dira/file2
we may or may not have a problem. If you have core.ignorecase=true,
we treat DirA and dira as the same directory.
if gitConfigBool("core.ignorecase"):
return path.lower().startswith(prefix.lower())
return path.startswith(prefix)
def getClientSpec():
"""Look at the p4 client spec, create a View() object that contains
all the mappings, and return it.
specList = p4CmdList(["client", "-o"])
if len(specList) != 1:
die('Output from "client -o" is %d lines, expecting 1' %
# dictionary of all client parameters
entry = specList[0]
# the //client/ name
client_name = entry["Client"]
# just the keys that start with "View"
view_keys = [k for k in entry.keys() if k.startswith("View")]
# hold this new View
view = View(client_name)
# append the lines, in order, to the view
for view_num in range(len(view_keys)):
k = "View%d" % view_num
if k not in view_keys:
die("Expected view key %s missing" % k)
return view
def getClientRoot():
"""Grab the client directory."""
output = p4CmdList(["client", "-o"])
if len(output) != 1:
die('Output from "client -o" is %d lines, expecting 1' % len(output))
entry = output[0]
if "Root" not in entry:
die('Client has no "Root"')
return entry["Root"]
def wildcard_decode(path):
"""Decode P4 wildcards into %xx encoding
P4 wildcards are not allowed in filenames. P4 complains if you simply
add them, but you can force it with "-f", in which case it translates
them into %xx encoding internally.
# Search for and fix just these four characters. Do % last so
# that fixing it does not inadvertently create new %-escapes.
# Cannot have * in a filename in windows; untested as to
# what p4 would do in such a case.
if not platform.system() == "Windows":
path = path.replace("%2A", "*")
path = path.replace("%23", "#") \
.replace("%40", "@") \
.replace("%25", "%")
return path
def wildcard_encode(path):
"""Encode %xx coded wildcards into P4 coding."""
# do % first to avoid double-encoding the %s introduced here
path = path.replace("%", "%25") \
.replace("*", "%2A") \
.replace("#", "%23") \
.replace("@", "%40")
return path
def wildcard_present(path):
m ="[*#@%]", 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 functools.reduce(
lambda a, b: a or b,
[relPath.endswith('.' + e) for e in gitConfigList('git-p4.largeFileExtensions')],
def generateTempFile(self, contents):
contentFile = tempfile.NamedTemporaryFile(prefix='git-p4-large-file', delete=False)
for d in contents:
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=True)
with zipfile.ZipFile(compressedContentFile, mode='w') as zf:
zf.write(contentTempFile, compress_type=zipfile.ZIP_DEFLATED)
compressedContentsSize = zf.infolist()[0].compress_size
if compressedContentsSize > gitConfigInt('git-p4.largeFileCompressedThreshold'):
return True
return False
def addLargeFile(self, relPath):
def removeLargeFile(self, 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
if self.exceedsLargeFileThreshold(relPath, contents) or self.hasLargeFileExtension(relPath):
contentTempFile = self.generateTempFile(contents)
pointer_git_mode, contents, localLargeFile = self.generatePointer(contentTempFile)
if pointer_git_mode:
git_mode = pointer_git_mode
if localLargeFile:
# Move temp file to final location in large file system
largeFileDir = os.path.dirname(localLargeFile)
if not os.path.isdir(largeFileDir):
shutil.move(contentTempFile, localLargeFile)
if gitConfigBool('git-p4.largeFilePush'):
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):
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 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
if os.path.getsize(contentFile) == 0:
return (None, '', None)
pointerProcess = subprocess.Popen(
['git', 'lfs', 'pointer', '--file=' + contentFile],
pointerFile = decode_text_stream(
if pointerProcess.wait():
die('git-lfs pointer command failed. Did you install the extension?')
# Git LFS removed the preamble in the output of the 'pointer' command
# starting from version 1.2.0. Check for the preamble here to support
# earlier versions.
# c.f.
if pointerFile.startswith('Git LFS pointer for'):
pointerFile = re.sub(r'Git LFS pointer for.*\n\n', '', pointerFile)
oid ='^oid \w+:(\w+)', pointerFile, re.MULTILINE).group(1)
# if someone use external ( not in local repo git )
lfs_path = gitConfig('')
if not lfs_path:
lfs_path = 'lfs'
if not os.path.isabs(lfs_path):
lfs_path = os.path.join(os.getcwd(), '.git', lfs_path)
localLargeFile = os.path.join(
'objects', oid[:2], oid[2:4],
# LFS Spec states that pointer files should not have the executable bit set.
gitMode = '100644'
return (gitMode, pointerFile, 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 +
'# Git LFS (see\n',
] +
['*.' + f.replace(' ', '[[:space:]]') + ' filter=lfs diff=lfs merge=lfs -text\n'
for f in sorted(gitConfigList('git-p4.largeFileExtensions'))
] +
['/' + f.replace(' ', '[[:space:]]') + ' filter=lfs diff=lfs merge=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())
return LargeFileSystem.processContent(self, git_mode, relPath, contents)
class Command:
delete_actions = ("delete", "move/delete", "purge")
add_actions = ("add", "branch", "move/add")
def __init__(self):
self.usage = "usage: %prog [options]"
self.needsGit = True
self.verbose = False
# This is required for the "append" update_shelve action
def ensure_value(self, attr, value):
if not hasattr(self, attr) or getattr(self, attr) is None:
setattr(self, attr, value)
return getattr(self, attr)
class P4UserMap:
def __init__(self):
self.userMapFromPerforceServer = False
self.myP4UserId = None
def p4UserId(self):
if self.myP4UserId:
return self.myP4UserId
results = p4CmdList(["user", "-o"])
for r in results:
if 'User' in r:
self.myP4UserId = r['User']
return r['User']
die("Could not find your p4 user id")
def p4UserIsMe(self, p4User):
"""Return True if the given p4 user is actually me."""
me = self.p4UserId()
if not p4User or p4User != me:
return False
return True
def getUserCacheFilename(self):
home = os.environ.get("HOME", os.environ.get("USERPROFILE"))
return home + "/.gitp4-usercache.txt"
def getUserMapFromPerforceServer(self):
if self.userMapFromPerforceServer:
self.users = {}
self.emails = {}
for output in p4CmdList(["users"]):
if "User" not in output:
# "FullName" is bytes. "Email" on the other hand might be bytes
# or unicode string depending on whether we are running under
# python2 or python3. To support
# git-p4.metadataDecodingStrategy=fallback, self.users dict values
# are always bytes, ready to be written to git.
emailbytes = metadata_stream_to_writable_bytes(output["Email"])
self.users[output["User"]] = output["FullName"] + b" <" + emailbytes + b">"
self.emails[output["Email"]] = output["User"]
mapUserConfigRegex = re.compile(r"^\s*(\S+)\s*=\s*(.+)\s*<(\S+)>\s*$", re.VERBOSE)
for mapUserConfig in gitConfigList("git-p4.mapUser"):
mapUser = mapUserConfigRegex.findall(mapUserConfig)
if mapUser and len(mapUser[0]) == 3:
user = mapUser[0][0]
fullname = mapUser[0][1]
email = mapUser[0][2]
fulluser = fullname + " <" + email + ">"
self.users[user] = metadata_stream_to_writable_bytes(fulluser)
self.emails[email] = user
s = b''
for (key, val) in self.users.items():
keybytes = metadata_stream_to_writable_bytes(key)
s += b"%s\t%s\n" % (keybytes.expandtabs(1), val.expandtabs(1))
open(self.getUserCacheFilename(), 'wb').write(s)
self.userMapFromPerforceServer = True
def loadUserMapFromCache(self):
self.users = {}
self.userMapFromPerforceServer = False
cache = open(self.getUserCacheFilename(), 'rb')
lines = cache.readlines()
for line in lines:
entry = line.strip().split(b"\t")
self.users[entry[0].decode('utf_8')] = entry[1]
except IOError:
class P4Submit(Command, P4UserMap):
conflict_behavior_choices = ("ask", "skip", "quit")
def __init__(self):
self.options = [
optparse.make_option("--origin", dest="origin"),
optparse.make_option("-M", dest="detectRenames", action="store_true"),
# preserve the user, requires relevant p4 permissions
optparse.make_option("--preserve-user", dest="preserveUser", action="store_true"),
optparse.make_option("--export-labels", dest="exportLabels", action="store_true"),
optparse.make_option("--dry-run", "-n", dest="dry_run", action="store_true"),
optparse.make_option("--prepare-p4-only", dest="prepare_p4_only", action="store_true"),
optparse.make_option("--conflict", dest="conflict_behavior",
optparse.make_option("--branch", dest="branch"),
optparse.make_option("--shelve", dest="shelve", action="store_true",
help="Shelve instead of submit. Shelved files are reverted, "
"restoring the workspace to the state before the shelve"),
optparse.make_option("--update-shelve", dest="update_shelve", action="append", type="int",
help="update an existing shelved changelist, implies --shelve, "
"repeat in-order for multiple shelved changelists"),
optparse.make_option("--commit", dest="commit", metavar="COMMIT",
help="submit only the specified commit(s), one commit or"),
optparse.make_option("--disable-rebase", dest="disable_rebase", action="store_true",
help="Disable rebase after submit is completed. Can be useful if you "
"work from a local git branch that is not master"),
optparse.make_option("--disable-p4sync", dest="disable_p4sync", action="store_true",
help="Skip Perforce sync of p4/master after submit or shelve"),
optparse.make_option("--no-verify", dest="no_verify", action="store_true",
help="Bypass p4-pre-submit and p4-changelist hooks"),
self.description = """Submit changes from git to the perforce depot.\n
The `p4-pre-submit` hook is executed if it exists and is executable. It
can be bypassed with the `--no-verify` command line option. The hook takes
no parameters and nothing from standard input. Exiting with a non-zero status
from this script prevents `git-p4 submit` from launching.
One usage scenario is to run unit tests in the hook.
The `p4-prepare-changelist` hook is executed right after preparing the default
changelist message and before the editor is started. It takes one parameter,
the name of the file that contains the changelist text. Exiting with a non-zero
status from the script will abort the process.
The purpose of the hook is to edit the message file in place, and it is not
supressed by the `--no-verify` option. This hook is called even if
`--prepare-p4-only` is set.
The `p4-changelist` hook is executed after the changelist message has been
edited by the user. It can be bypassed with the `--no-verify` option. It
takes a single parameter, the name of the file that holds the proposed
changelist text. Exiting with a non-zero status causes the command to abort.
The hook is allowed to edit the changelist file and can be used to normalize
the text into some project standard format. It can also be used to refuse the
Submit after inspect the message file.
The `p4-post-changelist` hook is invoked after the submit has successfully
occurred in P4. It takes no parameters and is meant primarily for notification
and cannot affect the outcome of the git p4 submit action.
self.usage += " [name of git branch to submit into perforce depot]"
self.origin = ""
self.detectRenames = False
self.preserveUser = gitConfigBool("git-p4.preserveUser")
self.dry_run = False
self.shelve = False
self.update_shelve = list()
self.commit = ""
self.disable_rebase = gitConfigBool("git-p4.disableRebase")
self.disable_p4sync = gitConfigBool("git-p4.disableP4Sync")
self.prepare_p4_only = False
self.conflict_behavior = None
self.isWindows = (platform.system() == "Windows")
self.exportLabels = False
self.p4HasMoveCommand = p4_has_move_command()
self.branch = None
self.no_verify = False
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.")
def separate_jobs_from_description(self, message):
"""Extract and return a possible Jobs field in the commit message. It
goes into a separate section in the p4 change specification.
A jobs line starts with "Jobs:" and looks like a new field in a
form. Values are white-space separated on the same line or on
following lines that start with a tab.
This does not parse and extract the full git commit message like a
p4 form. It just sees the Jobs: line as a marker to pass everything
from then on directly into the p4 form, but outside the description
Return a tuple (stripped log message, jobs string).
m ='^Jobs:', message, re.MULTILINE)
if m is None:
return (message, None)
jobtext = message[m.start():]
stripped_message = message[:m.start()].rstrip()
return (stripped_message, jobtext)
def prepareLogMessage(self, template, message, jobs):
"""Edits the template returned from "p4 change -o" to insert the
message in the Description field, and the jobs text in the Jobs
result = ""
inDescriptionSection = False
for line in template.split("\n"):
if line.startswith("#"):
result += line + "\n"
if inDescriptionSection:
if line.startswith("Files:") or line.startswith("Jobs:"):
inDescriptionSection = False
# insert Jobs section
if jobs:
result += jobs + "\n"
if line.startswith("Description:"):
inDescriptionSection = True
line += "\n"
for messageLine in message.split("\n"):
line += "\t" + messageLine + "\n"
result += line + "\n"
return result
def patchRCSKeywords(self, file, regexp):
"""Attempt to zap the RCS keywords in a p4 controlled file matching the
given regex.
handle, outFileName = tempfile.mkstemp(dir='.')
with os.fdopen(handle, "wb") as outFile, open(file, "rb") as inFile:
for line in inFile.readlines():
outFile.write(regexp.sub(br'$\1$', line))
# Forcibly overwrite the original file
shutil.move(outFileName, file)
# cleanup our temporary file
print("Failed to strip RCS keywords in %s" % file)
print("Patched up RCS keywords in %s" % file)
def p4UserForCommit(self, id):
"""Return the tuple (perforce user,git email) for a given git commit
gitEmail = read_pipe(["git", "log", "--max-count=1",
"--format=%ae", id])
gitEmail = gitEmail.strip()
if gitEmail not in self.emails:
return (None, gitEmail)
return (self.emails[gitEmail], gitEmail)
def checkValidP4Users(self, commits):
"""Check if any git authors cannot be mapped to p4 users."""
for id in commits:
user, email = self.p4UserForCommit(id)
if not user:
msg = "Cannot find p4 user for email %s in commit %s." % (email, id)
if gitConfigBool("git-p4.allowMissingP4Users"):
print("%s" % msg)
die("Error: %s\nSet git-p4.allowMissingP4Users to true to allow this." % msg)
def lastP4Changelist(self):
"""Get back the last changelist number submitted in this client spec.
This then gets used to patch up the username in the change. If the
same client spec is being used by multiple processes then this might
go wrong.
results = p4CmdList(["client", "-o"]) # find the current client
client = None
for r in results:
if 'Client' in r:
client = r['Client']
if not client:
die("could not get client spec")
results = p4CmdList(["changes", "-c", client, "-m", "1"])
for r in results:
if 'change' in r:
return r['change']
die("Could not get changelist number for last submit - cannot patch up user details")
def modifyChangelistUser(self, changelist, newUser):
"""Fixup the user field of a changelist after it has been submitted."""
changes = p4CmdList(["change", "-o", changelist])
if len(changes) != 1:
die("Bad output from p4 change modifying %s to user %s" %
(changelist, newUser))
c = changes[0]
if c['User'] == newUser:
# Nothing to do
c['User'] = newUser
# p4 does not understand format version 3 and above
input = marshal.dumps(c, 2)
result = p4CmdList(["change", "-f", "-i"], stdin=input)
for r in result:
if 'code' in r:
if r['code'] == 'error':
die("Could not modify user field of changelist %s to %s:%s" % (changelist, newUser, r['data']))
if 'data' in r:
print("Updated user field for changelist %s to %s" % (changelist, newUser))
die("Could not modify user field of changelist %s to %s" % (changelist, newUser))
def canChangeChangelists(self):
"""Check to see if we have p4 admin or super-user permissions, either
of which are required to modify changelists.
results = p4CmdList(["protects", self.depotPath])
for r in results:
if 'perm' in r:
if r['perm'] == 'admin':
return 1
if r['perm'] == 'super':
return 1
return 0
def prepareSubmitTemplate(self, changelist=None):
"""Run "p4 change -o" to grab a change specification template.
This does not use "p4 -G", as it is nice to keep the submission
template in original order, since a human might edit it.
Remove lines in the Files section that show changes to files
outside the depot path we're committing into.
upstream, settings = findUpstreamBranchPoint()
template = """\
# A Perforce Change Specification.
# Change: The change number. 'new' on a new changelist.
# Date: The date this specification was last modified.
# Client: The client on which the changelist was created. Read-only.
# User: The user who created the changelist.
# Status: Either 'pending' or 'submitted'. Read-only.
# Type: Either 'public' or 'restricted'. Default is 'public'.
# Description: Comments about the changelist. Required.
# Jobs: What opened jobs are to be closed by this changelist.
# You may delete jobs from this list. (New changelists only.)
# Files: What opened files from the default changelist are to be added
# to this changelist. You may delete files from this list.
# (New changelists only.)
files_list = []
inFilesSection = False
change_entry = None
args = ['change', '-o']
if changelist:
for entry in p4CmdList(args):
if 'code' not in entry:
if entry['code'] == 'stat':
change_entry = entry
if not change_entry:
die('Failed to decode output of p4 change -o')
for key, value in change_entry.items():
if key.startswith('File'):
if 'depot-paths' in settings:
if not [p for p in settings['depot-paths']
if p4PathStartsWith(value, p)]:
if not p4PathStartsWith(value, self.depotPath):
# Output in the order expected by prepareLogMessage
for key in ['Change', 'Client', 'User', 'Status', 'Description', 'Jobs']:
if key not in change_entry:
template += '\n'
template += key + ':'
if key == 'Description':
template += '\n'
for field_line in change_entry[key].splitlines():
template += '\t'+field_line+'\n'
if len(files_list) > 0:
template += '\n'
template += 'Files:\n'
for path in files_list:
template += '\t'+path+'\n'
return template
def edit_template(self, template_file):
"""Invoke the editor to let the user change the submission message.
Return true if okay to continue with the submit.
# if configured to skip the editing part, just submit
if gitConfigBool("git-p4.skipSubmitEdit"):
return True
# look at the modification time, to check later if the user saved
# the file
mtime = os.stat(template_file).st_mtime
# invoke the editor
if "P4EDITOR" in os.environ and (os.environ.get("P4EDITOR") != ""):
editor = os.environ.get("P4EDITOR")
editor = read_pipe(["git", "var", "GIT_EDITOR"]).strip()
system(["sh", "-c", ('%s "$@"' % editor), editor, template_file])
# If the file was not saved, prompt to see if this patch should
# be skipped. But skip this verification step if configured so.
if gitConfigBool("git-p4.skipSubmitEditCheck"):
return True
# modification time updated means user saved the file
if os.stat(template_file).st_mtime > mtime:
return True
response = prompt("Submit template unchanged. Submit anyway? [y]es, [n]o (skip this patch) ")
if response == 'y':
return True
if response == 'n':
return False
def get_diff_description(self, editedFiles, filesToAdd, symlinks):
# diff
if "P4DIFF" in os.environ:
diff = ""
for editedFile in editedFiles:
diff += p4_read_pipe(['diff', '-du',
# new file diff
newdiff = ""
for newFile in filesToAdd:
newdiff += "==== new file ====\n"
newdiff += "--- /dev/null\n"
newdiff += "+++ %s\n" % newFile
is_link = os.path.islink(newFile)
expect_link = newFile in symlinks
if is_link and expect_link:
newdiff += "+%s\n" % os.readlink(newFile)
f = open(newFile, "r")
for line in f.readlines():
newdiff += "+" + line
except UnicodeDecodeError:
# Found non-text data and skip, since diff description
# should only include text
return (diff + newdiff).replace('\r\n', '\n')
def applyCommit(self, id):
"""Apply one commit, return True if it succeeded."""
print("Applying", read_pipe(["git", "show", "-s",
"--format=format:%h %s", id]))
p4User, gitEmail = self.p4UserForCommit(id)
diff = read_pipe_lines(
["git", "diff-tree", "-r"] + self.diffOpts + ["{}^".format(id), id])
filesToAdd = set()
filesToChangeType = set()
filesToDelete = set()
editedFiles = set()
pureRenameCopy = set()
symlinks = set()
filesToChangeExecBit = {}
all_files = list()
for line in diff:
diff = parseDiffTreeEntry(line)
modifier = diff['status']
path = diff['src']
if modifier == "M":
if isModeExecChanged(diff['src_mode'], diff['dst_mode']):
filesToChangeExecBit[path] = diff['dst_mode']
elif modifier == "A":
filesToChangeExecBit[path] = diff['dst_mode']
if path in filesToDelete:
dst_mode = int(diff['dst_mode'], 8)
if dst_mode == 0o120000:
elif modifier == "D":
if path in filesToAdd:
elif modifier == "C":
src, dest = diff['src'], diff['dst']
p4_integrate(src, dest)
if diff['src_sha1'] != diff['dst_sha1']:
if isModeExecChanged(diff['src_mode'], diff['dst_mode']):
filesToChangeExecBit[dest] = diff['dst_mode']
if self.isWindows:
# turn off read-only attribute
os.chmod(dest, stat.S_IWRITE)
elif modifier == "R":
src, dest = diff['src'], diff['dst']
if self.p4HasMoveCommand:
p4_edit(src) # src must be open before move
p4_move(src, dest) # opens for (move/delete, move/add)
p4_integrate(src, dest)
if diff['src_sha1'] != diff['dst_sha1']:
if isModeExecChanged(diff['src_mode'], diff['dst_mode']):
if not self.p4HasMoveCommand:
p4_edit(dest) # with move: already open, writable
filesToChangeExecBit[dest] = diff['dst_mode']
if not self.p4HasMoveCommand:
if self.isWindows:
os.chmod(dest, stat.S_IWRITE)
elif modifier == "T":
die("unknown modifier %s for %s" % (modifier, path))
diffcmd = "git diff-tree --full-index -p \"%s\"" % (id)
patchcmd = diffcmd + " | git apply "
tryPatchCmd = patchcmd + "--check -"
applyPatchCmd = patchcmd + "--check --apply -"
patch_succeeded = True
if verbose:
print("TryPatch: %s" % tryPatchCmd)
if os.system(tryPatchCmd) != 0:
fixed_rcs_keywords = False
patch_succeeded = False
print("Unfortunately applying the change failed!")
# Patch failed, maybe it's just RCS keyword woes. Look through
# the patch to see if that's possible.
if gitConfigBool("git-p4.attemptRCSCleanup"):
file = None
kwfiles = {}
for file in editedFiles | filesToDelete:
# did this file's delta contain RCS keywords?
regexp = p4_keywords_regexp_for_file(file)
if regexp:
# this file is a possibility...look for RCS keywords.
for line in read_pipe_lines(
["git", "diff", "%s^..%s" % (id, id), file],
if verbose:
print("got keyword match on %s in %s in %s" % (regex.pattern, line, file))
kwfiles[file] = regexp
for file, regexp in kwfiles.items():
if verbose:
print("zapping %s with %s" % (line, regexp.pattern))
# File is being deleted, so not open in p4. Must
# disable the read-only bit on windows.
if self.isWindows and file not in editedFiles:
os.chmod(file, stat.S_IWRITE)
self.patchRCSKeywords(file, kwfiles[file])
fixed_rcs_keywords = True
if fixed_rcs_keywords:
print("Retrying the patch with RCS keywords cleaned up")
if os.system(tryPatchCmd) == 0:
patch_succeeded = True
print("Patch succeesed this time with RCS keywords cleaned")
if not patch_succeeded:
for f in editedFiles:
return False
# Apply the patch for real, and do add/delete/+x handling.
system(applyPatchCmd, shell=True)
for f in filesToChangeType:
p4_edit(f, "-t", "auto")
for f in filesToAdd:
for f in filesToDelete:
# Set/clear executable bits
for f in filesToChangeExecBit.keys():
mode = filesToChangeExecBit[f]
setP4ExecBit(f, mode)
update_shelve = 0
if len(self.update_shelve) > 0:
update_shelve = self.update_shelve.pop(0)
p4_reopen_in_change(update_shelve, all_files)
# Build p4 change description, starting with the contents
# of the git commit message.
logMessage = extractLogMessageFromGitCommit(id)
logMessage = logMessage.strip()
logMessage, jobs = self.separate_jobs_from_description(logMessage)
template = self.prepareSubmitTemplate(update_shelve)
submitTemplate = self.prepareLogMessage(template, logMessage, jobs)
if self.preserveUser:
submitTemplate += "\n######## Actual user %s, modified after commit\n" % p4User
if self.checkAuthorship and not self.p4UserIsMe(p4User):
submitTemplate += "######## git author %s does not match your p4 account.\n" % gitEmail
submitTemplate += "######## Use option --preserve-user to modify authorship.\n"
submitTemplate += "######## Variable git-p4.skipUserNameCheck hides this message.\n"
separatorLine = "######## everything below this line is just the diff #######\n"
if not self.prepare_p4_only:
submitTemplate += separatorLine
submitTemplate += self.get_diff_description(editedFiles, filesToAdd, symlinks)
handle, fileName = tempfile.mkstemp()
tmpFile = os.fdopen(handle, "w+b")
if self.isWindows:
submitTemplate = submitTemplate.replace("\n", "\r\n")
submitted = False
# Allow the hook to edit the changelist text before presenting it
# to the user.
if not run_git_hook("p4-prepare-changelist", [fileName]):
return False
if self.prepare_p4_only:
# Leave the p4 tree prepared, and the submit template around
# and let the user decide what to do next
submitted = True
print("P4 workspace prepared for submission.")
print("To submit or revert, go to client workspace")
print(" " + self.clientPath)
print("To submit, use \"p4 submit\" to write a new description,")
print("or \"p4 submit -i <%s\" to use the one prepared by"
" \"git p4\"." % fileName)
print("You can delete the file \"%s\" when finished." % fileName)
if self.preserveUser and p4User and not self.p4UserIsMe(p4User):
print("To preserve change ownership by user %s, you must\n"
"do \"p4 change -f <change>\" after submitting and\n"
"edit the User field.")
if pureRenameCopy:
print("After submitting, renamed files must be re-synced.")
print("Invoke \"p4 sync -f\" on each of these files:")
for f in pureRenameCopy:
print(" " + f)
print("To revert the changes, use \"p4 revert ...\", and delete")
print("the submit template file \"%s\"" % fileName)
if filesToAdd:
print("Since the commit adds new files, they must be deleted:")
for f in filesToAdd:
print(" " + f)
return True
if self.edit_template(fileName):
if not self.no_verify:
if not run_git_hook("p4-changelist", [fileName]):
print("The p4-changelist hook failed.")
return False
# read the edited message and submit
tmpFile = open(fileName, "rb")
message = decode_text_stream(
if self.isWindows:
message = message.replace("\r\n", "\n")
if message.find(separatorLine) != -1:
submitTemplate = message[:message.index(separatorLine)]
submitTemplate = message
if len(submitTemplate.strip()) == 0:
print("Changelist is empty, aborting this changelist.")
return False
if update_shelve:
p4_write_pipe(['shelve', '-r', '-i'], submitTemplate)
elif self.shelve:
p4_write_pipe(['shelve', '-i'], submitTemplate)
p4_write_pipe(['submit', '-i'], submitTemplate)
# 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")
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)
submitted = True
# Revert changes if we skip this patch
if not submitted or self.shelve:
if self.shelve:
print("Reverting shelved files.")
print("Submission cancelled, undoing p4 changes.")
for f in editedFiles | filesToDelete:
for f in filesToAdd:
if not self.prepare_p4_only:
return submitted
def exportGitTags(self, gitTags):
"""Export git tags as p4 labels. Create a p4 label and then tag with
validLabelRegexp = gitConfig("git-p4.labelExportRegexp")
if len(validLabelRegexp) == 0:
validLabelRegexp = defaultLabelRegexp
m = re.compile(validLabelRegexp)
for name in gitTags:
if not m.match(name):
if verbose:
print("tag %s does not match regexp %s" % (name, validLabelRegexp))
# Get the p4 commit this corresponds to
logMessage = extractLogMessageFromGitCommit(name)
values = extractSettingsGitLog(logMessage)
if 'change' not in values:
# a tag pointing to something not sent to p4; ignore
if verbose:
print("git tag %s does not give a p4 commit" % name)
changelist = values['change']
# Get the tag details.
inHeader = True
isAnnotated = False
body = []
for l in read_pipe_lines(["git", "cat-file", "-p", name]):
l = l.strip()
if inHeader:
if re.match(r'tag\s+', l):
isAnnotated = True
elif re.match(r'\s*$', l):
inHeader = False
if not isAnnotated:
body = ["lightweight tag imported by git p4\n"]
# Create the label - use the same view as the client spec we are using
clientSpec = getClientSpec()
labelTemplate = "Label: %s\n" % name
labelTemplate += "Description:\n"
for b in body:
labelTemplate += "\t" + b + "\n"
labelTemplate += "View:\n"
for depot_side in clientSpec.mappings:
labelTemplate += "\t%s\n" % depot_side
if self.dry_run:
print("Would create p4 label %s for tag" % name)
elif self.prepare_p4_only:
print("Not creating p4 label %s for tag due to option"
" --prepare-p4-only" % name)
p4_write_pipe(["label", "-i"], labelTemplate)
# Use the label
p4_system(["tag", "-l", name] +
["%s@%s" % (depot_side, changelist) for depot_side in clientSpec.mappings])
if verbose:
print("created p4 label for tag %s" % name)
def run(self, args):
if len(args) == 0:
self.master = currentGitBranch()
elif len(args) == 1:
self.master = args[0]
if not branchExists(self.master):
die("Branch %s does not exist" % self.master)
return False
for i in self.update_shelve:
if i <= 0:
sys.exit("invalid changelist %d" % i)
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]
if len(self.origin) == 0:
self.origin = upstream
if len(self.update_shelve) > 0:
self.shelve = True
if self.preserveUser:
if not self.canChangeChangelists():