#!/usr/bin/env python # # git-p4.py -- 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=invalid-name,missing-docstring,too-many-arguments,broad-except # pylint: disable=no-self-use,wrong-import-position,consider-iterating-dictionary # pylint: disable=wrong-import-order,unused-import,too-few-public-methods # pylint: disable=too-many-lines,ungrouped-imports,fixme,too-many-locals # pylint: disable=line-too-long,bad-whitespace,superfluous-parens # pylint: disable=too-many-statements,too-many-instance-attributes # pylint: disable=too-many-branches,too-many-nested-blocks # 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") sys.exit(1) import os import optparse import functools import marshal import subprocess import tempfile import time import platform import re import shutil import stat import zipfile import zlib import ctypes import errno import glob # 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 try: if raw_input and input: input = raw_input except: pass verbose = False # Only labels/tags matching this will be imported/exported defaultLabelRegexp = r'[a-zA-Z0-9_\-.]+$' # The block size is reduced automatically if required defaultBlockSize = 1<<20 p4_access_checked = False re_ko_keywords = re.compile(br'\$(Id|Header)(:[^$\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("git-p4.host") 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 p4_check_access() 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 else: 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. """ os.chdir(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 else: 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) else: sys.stderr.write(msg + "\n") sys.exit(1) 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(m.group(1) for m in re.finditer(r"\[(.)\]", prompt_text)) while True: sys.stderr.flush() sys.stdout.write(prompt_text) sys.stdout.flush() response=sys.stdin.readline().strip().lower() if not response: continue 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 else: # 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 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 else: try: path.decode('ascii') except: 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.""" if verbose: sys.stderr.write("Looking for hook: %s\n" % cmd) sys.stderr.flush() hooks_path = gitConfig("core.hooksPath") if len(hooks_path) <= 0: hooks_path = os.path.join(os.environ["GIT_DIR"], "hooks") if not isinstance(param, list): param=[param] # resolve hook file name, OS depdenent hook_file = os.path.join(hooks_path, cmd) if platform.system() == 'Windows': if not os.path.isfile(hook_file): # look for the file with an extension files = glob.glob(hook_file + ".*") if not files: return True files.sort() hook_file = files.pop() while hook_file.upper().endswith(".SAMPLE"): # The file is a sample hook. We don't want it if len(files) > 0: hook_file = files.pop() else: return True if not os.path.isfile(hook_file) or not os.access(hook_file, os.X_OK): return True return run_hook_command(hook_file, param) == 0 def run_hook_command(cmd, param): """Executes a git hook command cmd = the command line file to be executed. This can be a file that is run by OS association. param = a list of parameters to pass to the cmd command On windows, the extension is checked to see if it should be run with the Git for Windows Bash shell. If there is no file extension, the file is deemed a bash shell and will be handed off to sh.exe. Otherwise, Windows will be called with the shell to handle the file assocation. For non Windows operating systems, the file is called as an executable. """ cli = [cmd] + param use_shell = False if platform.system() == 'Windows': (root,ext) = os.path.splitext(cmd) if ext == "": exe_path = os.environ.get("EXEPATH") if exe_path is None: exe_path = "" else: exe_path = os.path.join(exe_path, "bin") cli = [os.path.join(exe_path, "SH.EXE")] + cli else: use_shell = True return subprocess.call(cli, shell=use_shell) 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) pipe.close() 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 = "" else: 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 else: 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, stderr=subprocess.PIPE) p.communicate() 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 = subprocess.call(cmd, *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 = subprocess.call(real_cmd, *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 return else: die_bad_access("perforce ticket expires in {0} seconds".format(expiry)) else: # account without a timeout - all ok return elif code == "error": data = result.get("data") if data: die_bad_access("p4 error: {0}".format(data)) else: die_bad_access("unknown error") elif code == "info": return else: 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]) else: 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 p4_system(cmd) 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"], str(d))) 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 # # Canonicalize the p4 type and return a tuple of the # base type, plus any modifiers. See "p4 help filetypes" # for a list and explanation. # def split_p4_type(p4type): 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) # # return the raw p4 type of a file (text, text+ko, etc) # def p4_type(f): results = p4CmdList(["fstat", "-T", "headType", wildcard_encode(f)]) return results[0]['headType'] # # Given a type base and modifier, return a regexp matching # the keywords that can be expanded in the file # def p4_keywords_regexp_for_type(base, type_mods): if base in ("text", "unicode", "binary"): if "ko" in type_mods: return re_ko_keywords elif "k" in type_mods: return re_k_keywords else: return None else: return None # # Given a file, return a regexp matching the possible # RCS keywords that will be expanded, or None for files # with kw expansion turned off. # def p4_keywords_regexp_for_file(file): if not os.path.exists(file): return None else: (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?$", result) if match: return match.group(1) else: die("Could not determine file type for %s (result: '%s')" % (file, result)) # Return the set of all p4 labels def getP4Labels(depotPaths): labels = set() if not isinstance(depotPaths, list): depotPaths = [depotPaths] for l in p4CmdList(["labels"] + ["%s..." % p for p in depotPaths]): label = l['label'] labels.add(label) return labels # Return the set of all git tags def getGitTags(): gitTags = set() for line in read_pipe_lines(["git", "tag"]): tag = line.strip() gitTags.add(tag) return gitTags _diff_tree_pattern = None def parseDiffTreeEntry(entry): """Parses a single diff tree entry into its component elements. See git-diff-tree(1) manpage for details about the format of the diff output. This method returns a dictionary with the following elements: src_mode - The mode of the source file dst_mode - The mode of the destination file src_sha1 - The sha1 for the source file dst_sha1 - The sha1 fr the destination file status - The one letter status of the diff (i.e. 'A', 'M', 'D', etc) status_score - The score for the status (applicable for 'C' and 'R' statuses). This is None if there is no score. src - The path for the source file. dst - The path for the destination file. This is only present for copy or renames. If it is not present, this is None. If the pattern is not matched, None is returned.""" global _diff_tree_pattern if not _diff_tree_pattern: _diff_tree_pattern = re.compile(':(\d+) (\d+) (\w+) (\w+) ([A-Z])(\d+)?\t(.*?)((\t(.*))|$)') match = _diff_tree_pattern.match(entry) if match: return { 'src_mode': match.group(1), 'dst_mode': match.group(2), 'src_sha1': match.group(3), 'dst_sha1': match.group(4), 'status': match.group(5), 'status_score': match.group(6), 'src': match.group(7), 'dst': match.group(10) } 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'] self.data = 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): stdin_file.write(stdin) else: for i in stdin: stdin_file.write(encode_text_stream(i)) stdin_file.write(b'\n') stdin_file.flush() stdin_file.seek(0) p4 = subprocess.Popen( cmd, stdin=stdin_file, stdout=subprocess.PIPE, *k, **kw) result = [] try: 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 # - `depotFile[0-9]*`, `path`, or `clientFile` which may contain non-UTF8 encoded text decoded_entry = {} for key, value in entry.items(): key = key.decode() if isinstance(value, bytes) and not (key in ('data', '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': continue if cb is not None: cb(entry) else: result.append(entry) except EOFError: pass exitCode = p4.wait() if exitCode != 0: if errors_as_exceptions: if len(result) > 0: data = result[0].get('data') if data: m = re.search('Too many rows scanned \(over (\d+)\)', data) if not m: m = re.search('Request too large \(over (\d+)\)', data) if m: limit = int(m.group(1)) raise P4RequestSizeException(exitCode, result, limit) raise P4ServerException(exitCode, result) else: raise P4Exception(exitCode) else: entry = {} entry["p4ExitCode"] = exitCode result.append(entry) return result def p4Cmd(cmd, *k, **kw): list = p4CmdList(cmd, *k, **kw) result = {} for entry in list: result.update(entry) 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 break elif "data" in entry: data = entry.get("data") space = data.find(" ") if data[:space] == depotPath: output = entry break if output == 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) != None def parseRevision(ref): return read_pipe(["git", "rev-parse", ref]).strip() def branchExists(ref): rev = read_pipe(["git", "rev-parse", "-q", "--verify", ref], ignore_error=True) 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 continue logMessage += log return logMessage def extractSettingsGitLog(log): values = {} for line in log.split("\n"): line = line.strip() m = re.search (r"^ *\[git-p4: (.*)\]$", line) if not m: continue assignments = m.group(1).split (':') 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() try: _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 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: cmdline.append("--remotes") else: cmdline.append("--branches") for line in read_pipe_lines(cmdline): line = line.strip() # only import to p4/ if not line.startswith('p4/'): continue # special symbolic ref to p4/master if line == "p4/HEAD": continue # 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: paths = ",".join(settings["depot-paths"]) branchByDepotPath[paths] = "remotes/p4/" + 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 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"): continue headName = line[len(originPrefix):] remoteHead = localRefPrefix + headName originHead = line original = extractSettingsGitLog(extractLogMessageFromGitCommit(originHead)) if ('depot-paths' not in original or 'change' not in original): continue update = False if not gitBranchExists(remoteHead): if verbose: print("creating %s" % remoteHead) update = True else: 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 else: 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() else: changeEnd = int(parts[1]) return (changeStart, changeEnd) def chooseBlockSize(blockSize): if blockSize: return blockSize else: 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) else: parts = changeRange.split(',') assert len(parts) == 2 try: (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) else: revisionRange = "%s,%s" % (changeStart, changeEnd) for p in depotPaths: cmd += ["%s...@%s" % (p, revisionRange)] # fetch the changes try: 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 else: block_size = max(2, block_size // 2) if verbose: print("block size error, retrying with block size {0}".format(block_size)) continue 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: continue changes.add(int(entry['change'])) if not block_size: break if end >= changeEnd: break 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' % len(specList)) # 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) view.append(entry[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"] # # 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. # def wildcard_decode(path): # 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): # 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 = 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 functools.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=True) with zipfile.ZipFile(compressedContentFile, mode='w') as zf: zf.write(contentTempFile, compress_type=zipfile.ZIP_DEFLATED) compressedContentsSize = zf.infolist()[0].compress_size os.remove(contentTempFile) 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) (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): 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. """ if os.path.getsize(contentFile) == 0: return (None, '', None) pointerProcess = subprocess.Popen( ['git', 'lfs', 'pointer', '--file=' + contentFile], stdout=subprocess.PIPE ) pointerFile = decode_text_stream(pointerProcess.stdout.read()) if pointerProcess.wait(): os.remove(contentFile) 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. https://github.com/github/git-lfs/commit/da2935d9a739592bc775c98d8ef4df9c72ea3b43 if pointerFile.startswith('Git LFS pointer for'): pointerFile = re.sub(r'Git LFS pointer for.*\n\n', '', pointerFile) oid = re.search(r'^oid \w+:(\w+)', pointerFile, re.MULTILINE).group(1) # if someone use external lfs.storage ( not in local repo git ) lfs_path = gitConfig('lfs.storage') 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( lfs_path, 'objects', oid[:2], oid[2:4], oid, ) # 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 + [ '\n', '#\n', '# Git LFS (see https://git-lfs.github.com/)\n', '#\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()) else: 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 else: 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: return self.users = {} self.emails = {} for output in p4CmdList(["users"]): if "User" not in output: continue self.users[output["User"]] = output["FullName"] + " <" + output["Email"] + ">" 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] self.users[user] = fullname + " <" + email + ">" self.emails[email] = user s = '' for (key, val) in self.users.items(): s += "%s\t%s\n" % (key.expandtabs(1), val.expandtabs(1)) open(self.getUserCacheFilename(), 'w').write(s) self.userMapFromPerforceServer = True def loadUserMapFromCache(self): self.users = {} self.userMapFromPerforceServer = False try: cache = open(self.getUserCacheFilename(), 'r') lines = cache.readlines() cache.close() for line in lines: entry = line.strip().split("\t") self.users[entry[0]] = entry[1] except IOError: self.getUserMapFromPerforceServer() class P4Submit(Command, P4UserMap): conflict_behavior_choices = ("ask", "skip", "quit") def __init__(self): Command.__init__(self) P4UserMap.__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", choices=self.conflict_behavior_choices), 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", metavar="CHANGELIST", 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 xxx..xxx"), 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 section. Return a tuple (stripped log message, jobs string).""" m = re.search(r'^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 field.""" result = "" inDescriptionSection = False for line in template.split("\n"): if line.startswith("#"): result += line + "\n" continue if inDescriptionSection: if line.startswith("Files:") or line.startswith("Jobs:"): inDescriptionSection = False # insert Jobs section if jobs: result += jobs + "\n" else: continue else: 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='.') try: 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 os.unlink(file) shutil.move(outFileName, file) except: # cleanup our temporary file os.unlink(outFileName) print("Failed to strip RCS keywords in %s" % file) raise print("Patched up RCS keywords in %s" % file) def p4UserForCommit(self,id): # Return the tuple (perforce user,git email) for a given git commit id self.getUserMapFromPerforceServer() gitEmail = read_pipe(["git", "log", "--max-count=1", "--format=%ae", id]) gitEmail = gitEmail.strip() if gitEmail not in self.emails: return (None,gitEmail) else: 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) else: 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'] break 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: return # 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)) return 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: args.append(str(changelist)) for entry in p4CmdList(args): if 'code' not in entry: continue if entry['code'] == 'stat': change_entry = entry break 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)]: continue else: if not p4PathStartsWith(value, self.depotPath): continue files_list.append(value) continue # Output in the order expected by prepareLogMessage for key in ['Change', 'Client', 'User', 'Status', 'Description', 'Jobs']: if key not in change_entry: continue 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") else: 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: del(os.environ["P4DIFF"]) diff = "" for editedFile in editedFiles: diff += p4_read_pipe(['diff', '-du', wildcard_encode(editedFile)]) # 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) else: f = open(newFile, "r") try: for line in f.readlines(): newdiff += "+" + line except UnicodeDecodeError: pass # Found non-text data and skip, since diff description should only include text f.close() 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'] all_files.append(path) if modifier == "M": p4_edit(path) if isModeExecChanged(diff['src_mode'], diff['dst_mode']): filesToChangeExecBit[path] = diff['dst_mode'] editedFiles.add(path) elif modifier == "A": filesToAdd.add(path) filesToChangeExecBit[path] = diff['dst_mode'] if path in filesToDelete: filesToDelete.remove(path) dst_mode = int(diff['dst_mode'], 8) if dst_mode == 0o120000: symlinks.add(path) elif modifier == "D": filesToDelete.add(path) if path in filesToAdd: filesToAdd.remove(path) elif modifier == "C": src, dest = diff['src'], diff['dst'] all_files.append(dest) p4_integrate(src, dest) pureRenameCopy.add(dest) if diff['src_sha1'] != diff['dst_sha1']: p4_edit(dest) pureRenameCopy.discard(dest) if isModeExecChanged(diff['src_mode'], diff['dst_mode']): p4_edit(dest) pureRenameCopy.discard(dest) filesToChangeExecBit[dest] = diff['dst_mode'] if self.isWindows: # turn off read-only attribute os.chmod(dest, stat.S_IWRITE) os.unlink(dest) editedFiles.add(dest) elif modifier == "R": src, dest = diff['src'], diff['dst'] all_files.append(dest) if self.p4HasMoveCommand: p4_edit(src) # src must be open before move p4_move(src, dest) # opens for (move/delete, move/add) else: p4_integrate(src, dest) if diff['src_sha1'] != diff['dst_sha1']: p4_edit(dest) else: pureRenameCopy.add(dest) 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) os.unlink(dest) filesToDelete.add(src) editedFiles.add(dest) elif modifier == "T": filesToChangeType.add(path) else: 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], raw=True): if regexp.search(line): if verbose: print("got keyword match on %s in %s in %s" % (regex.pattern, line, file)) kwfiles[file] = regexp break 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: p4_revert(f) 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: p4_add(f) for f in filesToDelete: p4_revert(f) p4_delete(f) # 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") tmpFile.write(encode_text_stream(submitTemplate)) tmpFile.close() submitted = False try: # 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("") print("P4 workspace prepared for submission.") print("To submit or revert, go to client workspace") print(" " + self.clientPath) print("") 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 \" 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("") 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) print("") sys.stdout.flush() 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.") sys.stdout.flush() return False # read the edited message and submit tmpFile = open(fileName, "rb") message = decode_text_stream(tmpFile.read()) tmpFile.close() if self.isWindows: message = message.replace("\r\n", "\n") if message.find(separatorLine) != -1: submitTemplate = message[:message.index(separatorLine)] else: submitTemplate = message if len(submitTemplate.strip()) == 0: print("Changelist is empty, aborting this changelist.") sys.stdout.flush() return False if update_shelve: p4_write_pipe(['shelve', '-r', '-i'], submitTemplate) elif self.shelve: p4_write_pipe(['shelve', '-i'], submitTemplate) else: 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 run_git_hook("p4-post-changelist") finally: # Revert changes if we skip this patch if not submitted or self.shelve: if self.shelve: print ("Reverting shelved files.") else: print ("Submission cancelled, undoing p4 changes.") sys.stdout.flush() for f in editedFiles | filesToDelete: p4_revert(f) for f in filesToAdd: p4_revert(f) os.remove(f) if not self.prepare_p4_only: os.remove(fileName) return submitted # Export git tags as p4 labels. Create a p4 label and then tag # with that. def exportGitTags(self, gitTags): 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)) continue # 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) continue else: 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 continue else: body.append(l) 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) else: 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) else: 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(): die("Cannot preserve user names without p4 super-user or admin permissions") # if not set from the command line, try the config file if self.conflict_behavior is None: val = gitConfig("git-p4.conflict") if val: if val not in self.conflict_behavior_choices: die("Invalid value '%s' for config git-p4.conflict" % val) else: val = "ask" self.conflict_behavior = val if self.verbose: print("Origin branch is " + self.origin) if len(self.depotPath) == 0: print("Internal error: cannot locate perforce depot path from existing branches") sys.exit(128) self.useClientSpec = False if gitConfigBool("git-p4.useclientspec"): self.useClientSpec = True if self.useClientSpec: self.clientSpecDirs = getClientSpec() # Check for the existence of P4 branches branchesDetected = (len(p4BranchesInGit().keys()) > 1) if self.useClientSpec and not branchesDetected: # all files are relative to the client spec self.clientPath = getClientRoot() else: self.clientPath = p4Where(self.depotPath) if self.clientPath == "": die("Error: Cannot locate perforce checkout of %s in client view" % self.depotPath) print("Perforce checkout for depot path %s located at %s" % (self.depotPath, self.clientPath)) self.oldWorkingDirectory = os.getcwd() # ensure the clientPath exists new_client_dir = False if not os.path.exists(self.clientPath): new_client_dir = True os.makedirs(self.clientPath) chdir(self.clientPath, is_client_path=True) if self.dry_run: print("Would synchronize p4 checkout in %s" % self.clientPath) else: print("Synchronizing p4 checkout...") if new_client_dir: # old one was destroyed, and maybe nobody told p4 p4_sync("...", "-f") else: p4_sync("...") self.check() commits = [] if self.master: committish = self.master else: committish = 'HEAD' if self.commit != "": if self.commit.find("..") != -1: limits_ish = self.commit.split("..") for line in read_pipe_lines(["git", "rev-list", "--no-merges", "%s..%s" % (limits_ish[0], limits_ish[1])]): commits.append(line.strip()) commits.reverse() else: commits.append(self.commit) else: for line in read_pipe_lines(["git", "rev-list", "--no-merges", "%s..%s" % (self.origin, committish)]): commits.append(line.strip()) commits.reverse() if self.preserveUser or gitConfigBool("git-p4.skipUserNameCheck"): self.checkAuthorship = False else: self.checkAuthorship = True if self.preserveUser: self.checkValidP4Users(commits) # # Build up a set of options to be passed to diff when # submitting each commit to p4. # if self.detectRenames: # command-line -M arg self.diffOpts = ["-M"] else: # If not explicitly set check the config variable detectRenames = gitConfig("git-p4.detectRenames") if detectRenames.lower() == "false" or detectRenames == "": self.diffOpts = [] elif detectRenames.lower() == "true": self.diffOpts = ["-M"] else: self.diffOpts = ["-M{}".format(detectRenames)] # no command-line arg for -C or --find-copies-harder, just # config variables detectCopies = gitConfig("git-p4.detectCopies") if detectCopies.lower() == "false" or detectCopies == "": pass elif detectCopies.lower() == "true": self.diffOpts.append("-C") else: self.diffOpts.append("-C{}".format(detectCopies)) if gitConfigBool("git-p4.detectCopiesHarder"): self.diffOpts.append("--find-copies-harder") num_shelves = len(self.update_shelve) if num_shelves > 0 and num_shelves != len(commits): sys.exit("number of commits (%d) must match number of shelved changelist (%d)" % (len(commits), num_shelves)) if not self.no_verify: try: if not run_git_hook("p4-pre-submit"): print("\nThe p4-pre-submit hook failed, aborting the submit.\n\nYou can skip " \ "this pre-submission check by adding\nthe command line option '--no-verify', " \ "however,\nthis will also skip the p4-changelist hook as well.") sys.exit(1) except Exception as e: print("\nThe p4-pre-submit hook failed, aborting the submit.\n\nThe hook failed "\ "with the error '{0}'".format(e.message) ) sys.exit(1) # # Apply the commits, one at a time. On failure, ask if should # continue to try the rest of the patches, or quit. # if self.dry_run: print("Would apply") applied = [] last = len(commits) - 1 for i, commit in enumerate(commits): if self.dry_run: print(" ", read_pipe(["git", "show", "-s", "--format=format:%h %s", commit])) ok = True else: ok = self.applyCommit(commit) if ok: applied.append(commit) if self.prepare_p4_only: if i < last: print("Processing only the first commit due to option" \ " --prepare-p4-only") break else: if i < last: # prompt for what to do, or use the option/variable if self.conflict_behavior == "ask": print("What do you want to do?") response = prompt("[s]kip this commit but apply the rest, or [q]uit? ") elif self.conflict_behavior == "skip": response = "s" elif self.conflict_behavior == "quit": response = "q" else: die("Unknown conflict_behavior '%s'" % self.conflict_behavior) if response == "s": print("Skipping this commit, but applying the rest") if response == "q": print("Quitting") break chdir(self.oldWorkingDirectory) shelved_applied = "shelved" if self.shelve else "applied" if self.dry_run: pass elif self.prepare_p4_only: pass elif len(commits) == len(applied): print("All commits {0}!".format(shelved_applied)) sync = P4Sync() if self.branch: sync.branch = self.branch if self.disable_p4sync: sync.sync_origin_only() else: sync.run([]) if not self.disable_rebase: rebase = P4Rebase() rebase.rebase() else: if len(applied) == 0: print("No commits {0}.".format(shelved_applied)) else: print("{0} only the commits marked with '*':".format(shelved_applied.capitalize())) for c in commits: if c in applied: star = "*" else: star = " " print(star, read_pipe(["git", "show", "-s", "--format=format:%h %s", c])) print("You will have to do 'git p4 sync' and rebase.") if gitConfigBool("git-p4.exportLabels"): self.exportLabels = True if self.exportLabels: p4Labels = getP4Labels(self.depotPath) gitTags = getGitTags() missingGitTags = gitTags - p4Labels self.exportGitTags(missingGitTags) # exit with error unless everything applied perfectly if len(commits) != len(applied): sys.exit(1) return True class View(object): """Represent a p4 view ("p4 help views"), and map files in a repo according to the view.""" def __init__(self, client_name): self.mappings = [] self.client_prefix = "//%s/" % client_name # cache results of "p4 where" to lookup client file locations self.client_spec_path_cache = {} def append(self, view_line): """Parse a view line, splitting it into depot and client sides. Append to self.mappings, preserving order. This is only needed for tag creation.""" # Split the view line into exactly two words. P4 enforces # structure on these lines that simplifies this quite a bit. # # Either or both words may be double-quoted. # Single quotes do not matter. # Double-quote marks cannot occur inside the words. # A + or - prefix is also inside the quotes. # There are no quotes unless they contain a space. # The line is already white-space stripped. # The two words are separated by a single space. # if view_line[0] == '"': # First word is double quoted. Find its end. close_quote_index = view_line.find('"', 1) if close_quote_index <= 0: die("No first-word closing quote found: %s" % view_line) depot_side = view_line[1:close_quote_index] # skip closing quote and space rhs_index = close_quote_index + 1 + 1 else: space_index = view_line.find(" ") if space_index <= 0: die("No word-splitting space found: %s" % view_line) depot_side = view_line[0:space_index] rhs_index = space_index + 1 # prefix + means overlay on previous mapping if depot_side.startswith("+"): depot_side = depot_side[1:] # prefix - means exclude this path, leave out of mappings exclude = False if depot_side.startswith("-"): exclude = True depot_side = depot_side[1:] if not exclude: self.mappings.append(depot_side) def convert_client_path(self, clientFile): # chop off //client/ part to make it relative if not decode_path(clientFile).startswith(self.client_prefix): die("No prefix '%s' on clientFile '%s'" % (self.client_prefix, clientFile)) return clientFile[len(self.client_prefix):] def update_client_spec_path_cache(self, files): """ Caching file paths by "p4 where" batch query """ # List depot file paths exclude that already cached fileArgs = [f['path'] for f in files if decode_path(f['path']) not in self.client_spec_path_cache] if len(fileArgs) == 0: return # All files in cache where_result = p4CmdList(["-x", "-", "where"], stdin=fileArgs) for res in where_result: if "code" in res and res["code"] == "error": # assume error is "... file(s) not in client view" continue if "clientFile" not in res: die("No clientFile in 'p4 where' output") if "unmap" in res: # it will list all of them, but only one not unmap-ped continue depot_path = decode_path(res['depotFile']) if gitConfigBool("core.ignorecase"): depot_path = depot_path.lower() self.client_spec_path_cache[depot_path] = self.convert_client_path(res["clientFile"]) # not found files or unmap files set to "" for depotFile in fileArgs: depotFile = decode_path(depotFile) if gitConfigBool("core.ignorecase"): depotFile = depotFile.lower() if depotFile not in self.client_spec_path_cache: self.client_spec_path_cache[depotFile] = b'' def map_in_client(self, depot_path): """Return the relative location in the client where this depot file should live. Returns "" if the file should not be mapped in the client.""" if gitConfigBool("core.ignorecase"): depot_path = depot_path.lower() if depot_path in self.client_spec_path_cache: return self.client_spec_path_cache[depot_path] die( "Error: %s is not found in client spec path" % depot_path ) return "" def cloneExcludeCallback(option, opt_str, value, parser): # prepend "/" because the first "/" was consumed as part of the option itself. # ("-//depot/A/..." becomes "/depot/A/..." after option parsing) parser.values.cloneExclude += ["/" + re.sub(r"\.\.\.$", "", value)] class P4Sync(Command, P4UserMap): def __init__(self): Command.__init__(self) P4UserMap.__init__(self) self.options = [ optparse.make_option("--branch", dest="branch"), optparse.make_option("--detect-branches", dest="detectBranches", action="store_true"), optparse.make_option("--changesfile", dest="changesFile"), optparse.make_option("--silent", dest="silent", action="store_true"), optparse.make_option("--detect-labels", dest="detectLabels", action="store_true"), optparse.make_option("--import-labels", dest="importLabels", action="store_true"), optparse.make_option("--import-local", dest="importIntoRemotes", action="store_false", help="Import into refs/heads/ , not refs/remotes"), optparse.make_option("--max-changes", dest="maxChanges", help="Maximum number of changes to import"), optparse.make_option("--changes-block-size", dest="changes_block_size", type="int", help="Internal block size to use when iteratively calling p4 changes"), optparse.make_option("--keep-path", dest="keepRepoPath", action='store_true', help="Keep entire BRANCH/DIR/SUBDIR prefix during import"), optparse.make_option("--use-client-spec", dest="useClientSpec", action='store_true', help="Only sync files that are included in the Perforce Client Spec"), optparse.make_option("-/", dest="cloneExclude", action="callback", callback=cloneExcludeCallback, type="string", help="exclude depot path"), ] self.description = """Imports from Perforce into a git repository.\n example: //depot/my/project/ -- to import the current head //depot/my/project/@all -- to import everything //depot/my/project/@1,6 -- to import only from revision 1 to 6 (a ... is not needed in the path p4 specification, it's added implicitly)""" self.usage += " //depot/path[@revRange]" self.silent = False self.createdBranches = set() self.committedChanges = set() self.branch = "" self.detectBranches = False self.detectLabels = False self.importLabels = False self.changesFile = "" self.syncWithOrigin = True self.importIntoRemotes = True self.maxChanges = "" self.changes_block_size = None self.keepRepoPath = False self.depotPaths = None self.p4BranchesInGit = [] self.cloneExclude = [] self.useClientSpec = False self.useClientSpec_from_options = False self.clientSpecDirs = None self.tempBranches = [] self.tempBranchLocation = "refs/git-p4-tmp" self.largeFileSystem = None self.suppress_meta_comment = False 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 self.depotPaths = [] self.changeRange = "" self.previousDepotPaths = [] self.hasOrigin = False # map from branch depot path to parent branch self.knownBranches = {} self.initialParents = {} self.tz = "%+03d%02d" % (- time.timezone / 3600, ((- time.timezone % 3600) / 60)) self.labels = {} # Force a checkpoint in fast-import and wait for it to finish def checkpoint(self): self.gitStream.write("checkpoint\n\n") self.gitStream.write("progress checkpoint\n\n") self.gitStream.flush() out = self.gitOutput.readline() if self.verbose: print("checkpoint finished: " + out) def isPathWanted(self, path): for p in self.cloneExclude: if p.endswith("/"): if p4PathStartsWith(path, p): return False # "-//depot/file1" without a trailing "/" should only exclude "file1", but not "file111" or "file1_dir/file2" elif path.lower() == p.lower(): return False for p in self.depotPaths: if p4PathStartsWith(path, decode_path(p)): return True return False def extractFilesFromCommit(self, commit, shelved=False, shelved_cl = 0): files = [] fnum = 0 while "depotFile%s" % fnum in commit: path = commit["depotFile%s" % fnum] found = self.isPathWanted(decode_path(path)) if not found: fnum = fnum + 1 continue file = {} file["path"] = path file["rev"] = commit["rev%s" % fnum] file["action"] = commit["action%s" % fnum] file["type"] = commit["type%s" % fnum] if shelved: file["shelved_cl"] = int(shelved_cl) files.append(file) fnum = fnum + 1 return files def extractJobsFromCommit(self, commit): jobs = [] jnum = 0 while "job%s" % jnum in commit: job = commit["job%s" % jnum] jobs.append(job) jnum = jnum + 1 return jobs def stripRepoPath(self, path, prefixes): """When streaming files, this is called to map a p4 depot path to where it should go in git. The prefixes are either self.depotPaths, or self.branchPrefixes in the case of branch detection.""" if self.useClientSpec: # branch detection moves files up a level (the branch name) # from what client spec interpretation gives path = decode_path(self.clientSpecDirs.map_in_client(path)) if self.detectBranches: for b in self.knownBranches: if p4PathStartsWith(path, b + "/"): path = path[len(b)+1:] elif self.keepRepoPath: # Preserve everything in relative path name except leading # //depot/; just look at first prefix as they all should # be in the same depot. depot = re.sub("^(//[^/]+/).*", r'\1', prefixes[0]) if p4PathStartsWith(path, depot): path = path[len(depot):] else: for p in prefixes: if p4PathStartsWith(path, p): path = path[len(p):] break path = wildcard_decode(path) return path def splitFilesIntoBranches(self, commit): """Look at each depotFile in the commit to figure out to what branch it belongs.""" if self.clientSpecDirs: files = self.extractFilesFromCommit(commit) self.clientSpecDirs.update_client_spec_path_cache(files) branches = {} fnum = 0 while "depotFile%s" % fnum in commit: raw_path = commit["depotFile%s" % fnum] path = decode_path(raw_path) found = self.isPathWanted(path) if not found: fnum = fnum + 1 continue file = {} file["path"] = raw_path file["rev"] = commit["rev%s" % fnum] file["action"] = commit["action%s" % fnum] file["type"] = commit["type%s" % fnum] fnum = fnum + 1 # start with the full relative path where this file would # go in a p4 client if self.useClientSpec: relPath = decode_path(self.clientSpecDirs.map_in_client(path)) else: relPath = self.stripRepoPath(path, self.depotPaths) for branch in self.knownBranches.keys(): # add a trailing slash so that a commit into qt/4.2foo # doesn't end up in qt/4.2, e.g. if p4PathStartsWith(relPath, branch + "/"): if branch not in branches: branches[branch] = [] branches[branch].append(file) break return branches def writeToGitStream(self, gitMode, relPath, contents): self.gitStream.write(encode_text_stream(u'M {} inline {}\n'.format(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') def encodeWithUTF8(self, path): try: path.decode('ascii') except: encoding = 'utf8' if gitConfig('git-p4.pathEncoding'): encoding = gitConfig('git-p4.pathEncoding') path = path.decode(encoding, 'replace').encode('utf8', 'replace') if self.verbose: print('Path with non-ASCII characters detected. Used %s to encode: %s ' % (encoding, path)) return path # output one file from the P4 stream # - helper for streamP4Files def streamOneP4File(self, file, contents): file_path = file['depotFile'] relPath = self.stripRepoPath(decode_path(file_path), self.branchPrefixes) if verbose: if 'fileSize' in self.stream_file: size = int(self.stream_file['fileSize']) else: size = 0 # deleted files don't get a fileSize apparently sys.stdout.write('\r%s --> %s (%s)\n' % ( file_path, relPath, format_size_human_readable(size))) sys.stdout.flush() (type_base, type_mods) = split_p4_type(file["type"]) git_mode = "100644" if "x" in type_mods: git_mode = "100755" if type_base == "symlink": git_mode = "120000" # p4 print on a symlink sometimes contains "target\n"; # if it does, remove the newline data = ''.join(decode_text_stream(c) for c in contents) if not data: # Some version of p4 allowed creating a symlink that pointed # to nothing. This causes p4 errors when checking out such # a change, and errors here too. Work around it by ignoring # the bad symlink; hopefully a future change fixes it. print("\nIgnoring empty symlink in %s" % file_path) return elif data[-1] == '\n': contents = [data[:-1]] else: contents = [data] if type_base == "utf16": # p4 delivers different text in the python output to -G # than it does when using "print -o", or normal p4 client # operations. utf16 is converted to ascii or utf8, perhaps. # But ascii text saved as -t utf16 is completely mangled. # Invoke print -o to get the real contents. # # On windows, the newlines will always be mangled by print, so put # them back too. This is not needed to the cygwin windows version, # just the native "NT" type. # try: text = p4_read_pipe(['print', '-q', '-o', '-', '%s@%s' % (decode_path(file['depotFile']), file['change'])], raw=True) except Exception as e: if 'Translation of file content failed' in str(e): type_base = 'binary' else: raise e else: if p4_version_string().find('/NT') >= 0: text = text.replace(b'\r\n', b'\n') contents = [ text ] if type_base == "apple": # Apple filetype files will be streamed as a concatenation of # its appledouble header and the contents. This is useless # on both macs and non-macs. If using "print -q -o xx", it # will create "xx" with the data, and "%xx" with the header. # This is also not very useful. # # Ideally, someday, this script can learn how to generate # appledouble files directly and import those to git, but # non-mac machines can never find a use for apple filetype. print("\nIgnoring apple filetype file %s" % file['depotFile']) return # Note that we do not try to de-mangle keywords on utf16 files, # even though in theory somebody may want that. regexp = p4_keywords_regexp_for_type(type_base, type_mods) if regexp: contents = [regexp.sub(br'$\1$', c) for c in contents] if self.largeFileSystem: (git_mode, contents) = self.largeFileSystem.processContent(git_mode, relPath, contents) self.writeToGitStream(git_mode, relPath, contents) def streamOneP4Deletion(self, file): relPath = self.stripRepoPath(decode_path(file['path']), self.branchPrefixes) if verbose: sys.stdout.write("delete %s\n" % relPath) sys.stdout.flush() self.gitStream.write(encode_text_stream(u'D {}\n'.format(relPath))) if self.largeFileSystem and self.largeFileSystem.isLargeFile(relPath): self.largeFileSystem.removeLargeFile(relPath) # handle another chunk of streaming data def streamP4FilesCb(self, marshalled): # catch p4 errors and complain err = None if "code" in 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 %s.' % ( os.getcwd(), format_size_human_readable(required_bytes)) if err: f = None if self.stream_have_file_info: if "depotFile" in self.stream_file: f = self.stream_file["depotFile"] # force a failure in fast-import, else an empty # commit will be made self.gitStream.write("\n") self.gitStream.write("die-now\n") self.gitStream.close() # ignore errors, but make sure it exits first self.importProcess.wait() if f: die("Error from p4 print for %s: %s" % (f, err)) else: die("Error from p4 print: %s" % err) if 'depotFile' in marshalled and self.stream_have_file_info: # start of a new file - output the old one first self.streamOneP4File(self.stream_file, self.stream_contents) self.stream_file = {} self.stream_contents = [] self.stream_have_file_info = False # pick up the new file information... for the # '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%% (%s)' % ( self.stream_file['depotFile'], progress, format_size_human_readable(size))) sys.stdout.flush() self.stream_have_file_info = True # Stream directly from "p4 files" into "git fast-import" def streamP4Files(self, files): filesForCommit = [] filesToRead = [] filesToDelete = [] for f in files: filesForCommit.append(f) if f['action'] in self.delete_actions: filesToDelete.append(f) else: filesToRead.append(f) # deleted files... for f in filesToDelete: self.streamOneP4Deletion(f) if len(filesToRead) > 0: self.stream_file = {} self.stream_contents = [] self.stream_have_file_info = False # curry self argument def streamP4FilesCbSelf(entry): self.streamP4FilesCb(entry) fileArgs = [] for f in filesToRead: if 'shelved_cl' in f: # Handle shelved CLs using the "p4 print file@=N" syntax to print # the contents fileArg = f['path'] + encode_text_stream('@={}'.format(f['shelved_cl'])) else: fileArg = f['path'] + encode_text_stream('#{}'.format(f['rev'])) fileArgs.append(fileArg) p4CmdList(["-x", "-", "print"], stdin=fileArgs, cb=streamP4FilesCbSelf) # do the last chunk if 'depotFile' in self.stream_file: self.streamOneP4File(self.stream_file, self.stream_contents) def make_email(self, userid): if userid in self.users: return self.users[userid] else: return "%s " % userid def streamTag(self, gitStream, labelName, labelDetails, commit, epoch): """ Stream a p4 tag. commit is either a git commit, or a fast-import mark, ":" """ if verbose: print("writing tag %s for commit %s" % (labelName, commit)) gitStream.write("tag %s\n" % labelName) gitStream.write("from %s\n" % commit) if 'Owner' in labelDetails: owner = labelDetails["Owner"] else: owner = None # Try to use the owner of the p4 label, or failing that, # the current p4 user id. if owner: email = self.make_email(owner) else: email = self.make_email(self.p4UserId()) tagger = "%s %s %s" % (email, epoch, self.tz) gitStream.write("tagger %s\n" % tagger) print("labelDetails=",labelDetails) if 'Description' in labelDetails: description = labelDetails['Description'] else: description = 'Label from git p4' gitStream.write("data %d\n" % len(description)) 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 not hasPrefix and self.verbose: print('Ignoring file outside of prefix: {0}'.format(path)) return hasPrefix def findShadowedFiles(self, files, change): # Perforce allows you commit files and directories with the same name, # so you could have files //depot/foo and //depot/foo/bar both checked # in. A p4 sync of a repository in this state fails. Deleting one of # the files recovers the repository. # # Git will not allow the broken state to exist and only the most recent # of the conflicting names is left in the repository. When one of the # conflicting files is deleted we need to re-add the other one to make # sure the git repository recovers in the same way as perforce. deleted = [f for f in files if f['action'] in self.delete_actions] to_check = set() for f in deleted: path = decode_path(f['path']) to_check.add(path + '/...') while True: path = path.rsplit("/", 1)[0] if path == "/" or path in to_check: break to_check.add(path) to_check = ['%s@%s' % (wildcard_encode(p), change) for p in to_check if self.hasBranchPrefix(p)] if to_check: stat_result = p4CmdList(["-x", "-", "fstat", "-T", "depotFile,headAction,headRev,headType"], stdin=to_check) for record in stat_result: if record['code'] != 'stat': continue if record['headAction'] in self.delete_actions: continue files.append({ 'action': 'add', 'path': record['depotFile'], 'rev': record['headRev'], 'type': record['headType']}) def commit(self, details, files, branch, parent = "", allow_empty=False): epoch = details["time"] author = details["user"] jobs = self.extractJobsFromCommit(details) if self.verbose: print('commit into {0}'.format(branch)) files = [f for f in files if self.hasBranchPrefix(decode_path(f['path']))] self.findShadowedFiles(files, details['change']) if self.clientSpecDirs: self.clientSpecDirs.update_client_spec_path_cache(files) files = [f for f in files if self.inClientSpec(decode_path(f['path']))] if gitConfigBool('git-p4.keepEmptyCommits'): allow_empty = True if not files and not allow_empty: 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"])) committer = "" if author not in self.users: self.getUserMapFromPerforceServer() committer = "%s %s %s" % (self.make_email(author), epoch, self.tz) self.gitStream.write("committer %s\n" % committer) self.gitStream.write("data < 0: self.gitStream.write("\nJobs: %s" % (' '.join(jobs))) if not self.suppress_meta_comment: self.gitStream.write("\n[git-p4: depot-paths = \"%s\": change = %s" % (','.join(self.branchPrefixes), details["change"])) if len(details['options']) > 0: self.gitStream.write(": options = %s" % details['options']) self.gitStream.write("]\n") self.gitStream.write("EOT\n\n") if len(parent) > 0: if self.verbose: print("parent %s" % parent) self.gitStream.write("from %s\n" % parent) self.streamP4Files(files) self.gitStream.write("\n") change = int(details["change"]) if change in self.labels: label = self.labels[change] labelDetails = label[0] labelRevisions = label[1] if self.verbose: print("Change %s is labelled %s" % (change, labelDetails)) files = p4CmdList(["files"] + ["%s...@%s" % (p, change) for p in self.branchPrefixes]) if len(files) == len(labelRevisions): cleanedFiles = {} for info in files: if info["action"] in self.delete_actions: continue cleanedFiles[info["depotFile"]] = info["rev"] if cleanedFiles == labelRevisions: self.streamTag(self.gitStream, 'tag_%s' % labelDetails['label'], labelDetails, branch, epoch) else: if not self.silent: print("Tag %s does not match with change %s: files do not match." % (labelDetails["label"], change)) else: if not self.silent: print("Tag %s does not match with change %s: file count is different." % (labelDetails["label"], change)) # Build a dictionary of changelists and labels, for "detect-labels" option. def getLabels(self): self.labels = {} l = p4CmdList(["labels"] + ["%s..." % p for p in self.depotPaths]) if len(l) > 0 and not self.silent: print("Finding files belonging to labels in %s" % self.depotPaths) for output in l: label = output["label"] revisions = {} newestChange = 0 if self.verbose: print("Querying files for label %s" % label) for file in p4CmdList(["files"] + ["%s...@%s" % (p, label) for p in self.depotPaths]): revisions[file["depotFile"]] = file["rev"] change = int(file["change"]) if change > newestChange: newestChange = change self.labels[newestChange] = [output, revisions] if self.verbose: print("Label changes: %s" % self.labels.keys()) # Import p4 labels as git tags. A direct mapping does not # exist, so assume that if all the files are at the same revision # then we can use that, or it's something more complicated we should # just ignore. def importP4Labels(self, stream, p4Labels): if verbose: print("import p4 labels: " + ' '.join(p4Labels)) ignoredP4Labels = gitConfigList("git-p4.ignoredP4Labels") validLabelRegexp = gitConfig("git-p4.labelImportRegexp") if len(validLabelRegexp) == 0: validLabelRegexp = defaultLabelRegexp m = re.compile(validLabelRegexp) for name in p4Labels: commitFound = False if not m.match(name): if verbose: print("label %s does not match regexp %s" % (name,validLabelRegexp)) continue if name in ignoredP4Labels: continue labelDetails = p4CmdList(['label', "-o", name])[0] # get the most recent changelist for each file in this label change = p4Cmd(["changes", "-m", "1"] + ["%s...@%s" % (p, name) for p in self.depotPaths]) if 'change' in change: # find the corresponding git commit; take the oldest commit changelist = int(change['change']) if changelist in self.committedChanges: gitCommit = ":%d" % changelist # use a fast-import mark commitFound = True else: gitCommit = read_pipe(["git", "rev-list", "--max-count=1", "--reverse", ":/\[git-p4:.*change = %d\]" % changelist], ignore_error=True) if len(gitCommit) == 0: print("importing label %s: could not find git commit for changelist %d" % (name, changelist)) else: commitFound = True gitCommit = gitCommit.strip() if commitFound: # Convert from p4 time format try: tmwhen = time.strptime(labelDetails['Update'], "%Y/%m/%d %H:%M:%S") except ValueError: print("Could not convert label time %s" % labelDetails['Update']) tmwhen = 1 when = int(time.mktime(tmwhen)) self.streamTag(stream, name, labelDetails, gitCommit, when) if verbose: print("p4 label %s mapped to git commit %s" % (name, gitCommit)) else: if verbose: print("Label %s has no changelists - possibly deleted?" % name) if not commitFound: # We can't import this label; don't try again as it will get very # expensive repeatedly fetching all the files for labels that will # never be imported. If the label is moved in the future, the # ignore will need to be removed manually. system(["git", "config", "--add", "git-p4.ignoredP4Labels", name]) def guessProjectName(self): for p in self.depotPaths: if p.endswith("/"): p = p[:-1] p = p[p.strip().rfind("/") + 1:] if not p.endswith("/"): p += "/" return p def getBranchMapping(self): lostAndFoundBranches = set() user = gitConfig("git-p4.branchUser") for info in p4CmdList( ["branches"] + (["-u", user] if len(user) > 0 else [])): details = p4Cmd(["branch", "-o", info["branch"]]) viewIdx = 0 while "View%s" % viewIdx in details: paths = details["View%s" % viewIdx].split(" ") viewIdx = viewIdx + 1 # require standard //depot/foo/... //depot/bar/... mapping if len(paths) != 2 or not paths[0].endswith("/...") or not paths[1].endswith("/..."): continue source = paths[0] destination = paths[1] ## HACK if p4PathStartsWith(source, self.depotPaths[0]) and p4PathStartsWith(destination, self.depotPaths[0]): source = source[len(self.depotPaths[0]):-4] destination = destination[len(self.depotPaths[0]):-4] if destination in self.knownBranches: if not self.silent: print("p4 branch %s defines a mapping from %s to %s" % (info["branch"], source, destination)) print("but there exists another mapping from %s to %s already!" % (self.knownBranches[destination], destination)) continue self.knownBranches[destination] = source lostAndFoundBranches.discard(destination) if source not in self.knownBranches: lostAndFoundBranches.add(source) # Perforce does not strictly require branches to be defined, so we also # check git config for a branch list. # # Example of branch definition in git config file: # [git-p4] # branchList=main:branchA # branchList=main:branchB # branchList=branchA:branchC configBranches = gitConfigList("git-p4.branchList") for branch in configBranches: if branch: (source, destination) = branch.split(":") self.knownBranches[destination] = source lostAndFoundBranches.discard(destination) if source not in self.knownBranches: lostAndFoundBranches.add(source) for branch in lostAndFoundBranches: self.knownBranches[branch] = branch def getBranchMappingFromGitBranches(self): branches = p4BranchesInGit(self.importIntoRemotes) for branch in branches.keys(): if branch == "master": branch = "main" else: branch = branch[len(self.projectName):] self.knownBranches[branch] = branch def updateOptionDict(self, d): option_keys = {} if self.keepRepoPath: option_keys['keepRepoPath'] = 1 d["options"] = ' '.join(sorted(option_keys.keys())) def readOptions(self, d): self.keepRepoPath = ('options' in d and ('keepRepoPath' in d['options'])) def gitRefForBranch(self, branch): if branch == "main": return self.refPrefix + "master" if len(branch) <= 0: return branch return self.refPrefix + self.projectName + branch def gitCommitByP4Change(self, ref, change): if self.verbose: print("looking in ref " + ref + " for change %s using bisect..." % change) earliestCommit = "" latestCommit = parseRevision(ref) while True: if self.verbose: print("trying: earliest %s latest %s" % (earliestCommit, latestCommit)) next = read_pipe(["git", "rev-list", "--bisect", latestCommit, earliestCommit]).strip() if len(next) == 0: if self.verbose: print("argh") return "" log = extractLogMessageFromGitCommit(next) settings = extractSettingsGitLog(log) currentChange = int(settings['change']) if self.verbose: print("current change %s" % currentChange) if currentChange == change: if self.verbose: print("found %s" % next) return next if currentChange < change: earliestCommit = "^%s" % next else: if next == latestCommit: die("Infinite loop while looking in ref %s for change %s. Check your branch mappings" % (ref, change)) latestCommit = "%s^@" % next return "" def importNewBranch(self, branch, maxChange): # make fast-import flush all changes to disk and update the refs using the checkpoint # command so that we can try to find the branch parent in the git history self.gitStream.write("checkpoint\n\n"); self.gitStream.flush(); branchPrefix = self.depotPaths[0] + branch + "/" range = "@1,%s" % maxChange #print "prefix" + branchPrefix changes = p4ChangesForPaths([branchPrefix], range, self.changes_block_size) if len(changes) <= 0: return False firstChange = changes[0] #print "first change in branch: %s" % firstChange sourceBranch = self.knownBranches[branch] sourceDepotPath = self.depotPaths[0] + sourceBranch sourceRef = self.gitRefForBranch(sourceBranch) #print "source " + sourceBranch branchParentChange = int(p4Cmd(["changes", "-m", "1", "%s...@1,%s" % (sourceDepotPath, firstChange)])["change"]) #print "branch parent: %s" % branchParentChange gitParent = self.gitCommitByP4Change(sourceRef, branchParentChange) if len(gitParent) > 0: self.initialParents[self.gitRefForBranch(branch)] = gitParent #print "parent git commit: %s" % gitParent self.importChanges(changes) return True def searchParent(self, parent, branch, target): targetTree = read_pipe(["git", "rev-parse", "{}^{{tree}}".format(target)]).strip() for line in read_pipe_lines(["git", "rev-list", "--format=%H %T", "--no-merges", parent]): if line.startswith("commit "): continue commit, tree = line.strip().split(" ") if tree == targetTree: if self.verbose: print("Found parent of %s in commit %s" % (branch, commit)) return commit return None def importChanges(self, changes, origin_revision=0): cnt = 1 for change in changes: description = p4_describe(change) self.updateOptionDict(description) if not self.silent: sys.stdout.write("\rImporting revision %s (%d%%)" % ( change, (cnt * 100) // len(changes))) sys.stdout.flush() cnt = cnt + 1 try: if self.detectBranches: branches = self.splitFilesIntoBranches(description) for branch in branches.keys(): ## HACK --hwn branchPrefix = self.depotPaths[0] + branch + "/" self.branchPrefixes = [ branchPrefix ] parent = "" filesForCommit = branches[branch] if self.verbose: print("branch is %s" % branch) self.updatedBranches.add(branch) if branch not in self.createdBranches: self.createdBranches.add(branch) parent = self.knownBranches[branch] if parent == branch: parent = "" else: fullBranch = self.projectName + branch if fullBranch not in self.p4BranchesInGit: if not self.silent: print("\n Importing new branch %s" % fullBranch); if self.importNewBranch(branch, change - 1): parent = "" self.p4BranchesInGit.append(fullBranch) if not self.silent: print("\n Resuming with change %s" % change); if self.verbose: print("parent determined through known branches: %s" % parent) branch = self.gitRefForBranch(branch) parent = self.gitRefForBranch(parent) if self.verbose: print("looking for initial parent for %s; current parent is %s" % (branch, parent)) if len(parent) == 0 and branch in self.initialParents: parent = self.initialParents[branch] del self.initialParents[branch] blob = None if len(parent) > 0: tempBranch = "%s/%d" % (self.tempBranchLocation, change) if self.verbose: print("Creating temporary branch: " + tempBranch) self.commit(description, filesForCommit, tempBranch) self.tempBranches.append(tempBranch) self.checkpoint() blob = self.searchParent(parent, branch, tempBranch) if blob: self.commit(description, filesForCommit, branch, blob) else: if self.verbose: print("Parent of %s not found. Committing into head of %s" % (branch, parent)) self.commit(description, filesForCommit, branch, parent) else: files = self.extractFilesFromCommit(description) self.commit(description, files, self.branch, self.initialParent) # only needed once, to connect to the previous commit self.initialParent = "" except IOError: print(self.gitError.read()) sys.exit(1) def sync_origin_only(self): if self.syncWithOrigin: self.hasOrigin = originP4BranchesExist() if self.hasOrigin: if not self.silent: print('Syncing with origin first, using "git fetch origin"') system(["git", "fetch", "origin"]) def importHeadRevision(self, revision): print("Doing initial import of %s from revision %s into %s" % (' '.join(self.depotPaths), revision, self.branch)) details = {} details["user"] = "git perforce import user" details["desc"] = ("Initial import of %s from the state at revision %s\n" % (' '.join(self.depotPaths), revision)) details["change"] = revision newestRevision = 0 fileCnt = 0 fileArgs = ["%s...%s" % (p,revision) for p in self.depotPaths] for info in p4CmdList(["files"] + fileArgs): if 'code' in info and info['code'] == 'error': sys.stderr.write("p4 returned an error: %s\n" % info['data']) if info['data'].find("must refer to client") >= 0: sys.stderr.write("This particular p4 error is misleading.\n") sys.stderr.write("Perhaps the depot path was misspelled.\n"); sys.stderr.write("Depot path: %s\n" % " ".join(self.depotPaths)) sys.exit(1) if 'p4ExitCode' in info: sys.stderr.write("p4 exitcode: %s\n" % info['p4ExitCode']) sys.exit(1) change = int(info["change"]) if change > newestRevision: newestRevision = change if info["action"] in self.delete_actions: # don't increase the file cnt, otherwise details["depotFile123"] will have gaps! #fileCnt = fileCnt + 1 continue for prop in ["depotFile", "rev", "action", "type" ]: details["%s%s" % (prop, fileCnt)] = info[prop] fileCnt = fileCnt + 1 details["change"] = newestRevision # Use time from top-most change so that all git p4 clones of # the same p4 repo have the same commit SHA1s. res = p4_describe(newestRevision) details["time"] = res["time"] self.updateOptionDict(details) try: self.commit(details, self.extractFilesFromCommit(details), self.branch) except IOError as err: print("IO error with git fast-import. Is your git version recent enough?") print("IO error details: {}".format(err)) print(self.gitError.read()) def importRevisions(self, args, branch_arg_given): changes = [] if len(self.changesFile) > 0: with open(self.changesFile) as f: output = f.readlines() changeSet = set() for line in output: changeSet.add(int(line)) for change in changeSet: changes.append(change) changes.sort() else: # catch "git p4 sync" with no new branches, in a repo that # does not have any existing p4 branches if len(args) == 0: if not self.p4BranchesInGit: raise P4CommandException("No remote p4 branches. Perhaps you never did \"git p4 clone\" in here.") # The default branch is master, unless --branch is used to # specify something else. Make sure it exists, or complain # nicely about how to use --branch. if not self.detectBranches: if not branch_exists(self.branch): if branch_arg_given: raise P4CommandException("Error: branch %s does not exist." % self.branch) else: raise P4CommandException("Error: no branch %s; perhaps specify one with --branch." % self.branch) if self.verbose: print("Getting p4 changes for %s...%s" % (', '.join(self.depotPaths), self.changeRange)) changes = p4ChangesForPaths(self.depotPaths, self.changeRange, self.changes_block_size) if len(self.maxChanges) > 0: changes = changes[:min(int(self.maxChanges), len(changes))] if len(changes) == 0: if not self.silent: print("No changes to import!") else: if not self.silent and not self.detectBranches: print("Import destination: %s" % self.branch) self.updatedBranches = set() if not self.detectBranches: if args: # start a new branch self.initialParent = "" else: # build on a previous revision self.initialParent = parseRevision(self.branch) self.importChanges(changes) if not self.silent: print("") if len(self.updatedBranches) > 0: sys.stdout.write("Updated branches: ") for b in self.updatedBranches: sys.stdout.write("%s " % b) sys.stdout.write("\n") def openStreams(self): self.importProcess = subprocess.Popen(["git", "fast-import"], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE); self.gitOutput = self.importProcess.stdout self.gitStream = self.importProcess.stdin self.gitError = self.importProcess.stderr if bytes is not str: # Wrap gitStream.write() so that it can be called using `str` arguments def make_encoded_write(write): def encoded_write(s): return write(s.encode() if isinstance(s, str) else s) return encoded_write self.gitStream.write = make_encoded_write(self.gitStream.write) def closeStreams(self): if self.gitStream is None: return self.gitStream.close() if self.importProcess.wait() != 0: die("fast-import failed: %s" % self.gitError.read()) self.gitOutput.close() self.gitError.close() self.gitStream = None def run(self, args): if self.importIntoRemotes: self.refPrefix = "refs/remotes/p4/" else: self.refPrefix = "refs/heads/p4/" self.sync_origin_only() branch_arg_given = bool(self.branch) if len(self.branch) == 0: self.branch = self.refPrefix + "master" if gitBranchExists("refs/heads/p4") and self.importIntoRemotes: system(["git", "update-ref", self.branch, "refs/heads/p4"]) system(["git", "branch", "-D", "p4"]) # accept either the command-line option, or the configuration variable if self.useClientSpec: # will use this after clone to set the variable self.useClientSpec_from_options = True else: if gitConfigBool("git-p4.useclientspec"): self.useClientSpec = True if self.useClientSpec: self.clientSpecDirs = getClientSpec() # TODO: should always look at previous commits, # merge with previous imports, if possible. if args == []: if self.hasOrigin: createOrUpdateBranchesFromOrigin(self.refPrefix, self.silent) # branches holds mapping from branch name to sha1 branches = p4BranchesInGit(self.importIntoRemotes) # restrict to just this one, disabling detect-branches if branch_arg_given: short = self.branch.split("/")[-1] if short in branches: self.p4BranchesInGit = [ short ] else: self.p4BranchesInGit = branches.keys() if len(self.p4BranchesInGit) > 1: if not self.silent: print("Importing from/into multiple branches") self.detectBranches = True for branch in branches.keys(): self.initialParents[self.refPrefix + branch] = \ branches[branch] if self.verbose: print("branches: %s" % self.p4BranchesInGit) p4Change = 0 for branch in self.p4BranchesInGit: logMsg = extractLogMessageFromGitCommit(self.refPrefix + branch) settings = extractSettingsGitLog(logMsg) self.readOptions(settings) if ('depot-paths' in settings and 'change' in settings): change = int(settings['change']) + 1 p4Change = max(p4Change, change) depotPaths = sorted(settings['depot-paths']) if self.previousDepotPaths == []: self.previousDepotPaths = depotPaths else: paths = [] for (prev, cur) in zip(self.previousDepotPaths, depotPaths): prev_list = prev.split("/") cur_list = cur.split("/") for i in range(0, min(len(cur_list), len(prev_list))): if cur_list[i] != prev_list[i]: i = i - 1 break paths.append ("/".join(cur_list[:i + 1])) self.previousDepotPaths = paths if p4Change > 0: self.depotPaths = sorted(self.previousDepotPaths) self.changeRange = "@%s,#head" % p4Change if not self.silent and not self.detectBranches: print("Performing incremental import into %s git branch" % self.branch) # accept multiple ref name abbreviations: # 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 not self.branch.startswith("refs/"): if self.importIntoRemotes: prepend = "refs/remotes/" else: prepend = "refs/heads/" if not self.branch.startswith("p4/"): prepend += "p4/" self.branch = prepend + self.branch if len(args) == 0 and self.depotPaths: if not self.silent: print("Depot paths: %s" % ' '.join(self.depotPaths)) else: if self.depotPaths and self.depotPaths != args: print("previous import used depot path %s and now %s was specified. " "This doesn't work!" % (' '.join (self.depotPaths), ' '.join (args))) sys.exit(1) self.depotPaths = sorted(args) revision = "" self.users = {} # Make sure no revision specifiers are used when --changesfile # is specified. bad_changesfile = False if len(self.changesFile) > 0: for p in self.depotPaths: if p.find("@") >= 0 or p.find("#") >= 0: bad_changesfile = True break if bad_changesfile: die("Option --changesfile is incompatible with revision specifiers") newPaths = [] for p in self.depotPaths: if p.find("@") != -1: atIdx = p.index("@") self.changeRange = p[atIdx:] if self.changeRange == "@all": self.changeRange = "" elif ',' not in self.changeRange: revision = self.changeRange self.changeRange = "" p = p[:atIdx] elif p.find("#") != -1: hashIdx = p.index("#") revision = p[hashIdx:] p = p[:hashIdx] elif self.previousDepotPaths == []: # pay attention to changesfile, if given, else import # the entire p4 tree at the head revision if len(self.changesFile) == 0: revision = "#head" p = re.sub ("\.\.\.$", "", p) if not p.endswith("/"): p += "/" newPaths.append(p) self.depotPaths = newPaths # --detect-branches may change this for each branch self.branchPrefixes = self.depotPaths self.loadUserMapFromCache() self.labels = {} if self.detectLabels: self.getLabels(); if self.detectBranches: ## FIXME - what's a P4 projectName ? self.projectName = self.guessProjectName() if self.hasOrigin: self.getBranchMappingFromGitBranches() else: self.getBranchMapping() if self.verbose: print("p4-git branches: %s" % self.p4BranchesInGit) print("initial parents: %s" % self.initialParents) for b in self.p4BranchesInGit: if b != "master": ## FIXME b = b[len(self.projectName):] self.createdBranches.add(b) p4_check_access() self.openStreams() err = None try: if revision: self.importHeadRevision(revision) else: self.importRevisions(args, branch_arg_given) if gitConfigBool("git-p4.importLabels"): self.importLabels = True if self.importLabels: p4Labels = getP4Labels(self.depotPaths) gitTags = getGitTags() missingP4Labels = p4Labels - gitTags self.importP4Labels(self.gitStream, missingP4Labels) except P4CommandException as e: err = e finally: self.closeStreams() if err: die(str(err)) # Cleanup temporary branches created during import if self.tempBranches != []: for branch in self.tempBranches: read_pipe(["git", "update-ref", "-d", branch]) os.rmdir(os.path.join(os.environ.get("GIT_DIR", ".git"), self.tempBranchLocation)) # Create a symbolic ref p4/HEAD pointing to p4/ to allow # a convenient shortcut refname "p4". if self.importIntoRemotes: head_ref = self.refPrefix + "HEAD" if not gitBranchExists(head_ref) and gitBranchExists(self.branch): system(["git", "symbolic-ref", head_ref, self.branch]) return True class P4Rebase(Command): def __init__(self): Command.__init__(self) self.options = [ optparse.make_option("--import-labels", dest="importLabels", action="store_true"), ] self.importLabels = False self.description = ("Fetches the latest revision from perforce and " + "rebases the current work (branch) against it") def run(self, args): sync = P4Sync() sync.importLabels = self.importLabels sync.run([]) return self.rebase() def rebase(self): if os.system("git update-index --refresh") != 0: die("Some files in your working directory are modified and different than what is in your index. You can use git update-index to bring the index up to date or stash away all your changes with git stash."); if len(read_pipe(["git", "diff-index", "HEAD", "--"])) > 0: die("You have uncommitted changes. Please commit them before rebasing or stash them away with git stash."); [upstream, settings] = findUpstreamBranchPoint() if len(upstream) == 0: die("Cannot find upstream branchpoint for rebase") # the branchpoint may be p4/foo~3, so strip off the parent upstream = re.sub("~[0-9]+$", "", upstream) print("Rebasing the current branch onto %s" % upstream) oldHead = read_pipe(["git", "rev-parse", "HEAD"]).strip() system(["git", "rebase", upstream]) system(["git", "diff-tree", "--stat", "--summary", "-M", oldHead, "HEAD", "--"]) return True class P4Clone(P4Sync): def __init__(self): P4Sync.__init__(self) self.description = "Creates a new git repository and imports from Perforce into it" self.usage = "usage: %prog [options] //depot/path[@revRange]" self.options += [ optparse.make_option("--destination", dest="cloneDestination", action='store', default=None, help="where to leave result of the clone"), optparse.make_option("--bare", dest="cloneBare", action="store_true", default=False), ] self.cloneDestination = None self.needsGit = False self.cloneBare = False def defaultDestination(self, args): ## TODO: use common prefix of args? depotPath = args[0] depotDir = re.sub("(@[^@]*)$", "", depotPath) depotDir = re.sub("(#[^#]*)$", "", depotDir) depotDir = re.sub(r"\.\.\.$", "", depotDir) depotDir = re.sub(r"/$", "", depotDir) return os.path.split(depotDir)[1] def run(self, args): if len(args) < 1: return False if self.keepRepoPath and not self.cloneDestination: sys.stderr.write("Must specify destination for --keep-path\n") sys.exit(1) depotPaths = args if not self.cloneDestination and len(depotPaths) > 1: self.cloneDestination = depotPaths[-1] depotPaths = depotPaths[:-1] for p in depotPaths: if not p.startswith("//"): sys.stderr.write('Depot paths must start with "//": %s\n' % p) return False if not self.cloneDestination: self.cloneDestination = self.defaultDestination(args) print("Importing from %s into %s" % (', '.join(depotPaths), self.cloneDestination)) if not os.path.exists(self.cloneDestination): os.makedirs(self.cloneDestination) chdir(self.cloneDestination) init_cmd = [ "git", "init" ] if self.cloneBare: init_cmd.append("--bare") retcode = subprocess.call(init_cmd) if retcode: raise subprocess.CalledProcessError(retcode, init_cmd) if not P4Sync.run(self, depotPaths): return False # create a master branch and check out a work tree if gitBranchExists(self.branch): system([ "git", "branch", currentGitBranch(), self.branch ]) if not self.cloneBare: system([ "git", "checkout", "-f" ]) else: print('Not checking out any branch, use ' \ '"git checkout -q -b master "') # auto-set this variable if invoked with --use-client-spec if self.useClientSpec_from_options: system(["git", "config", "--bool", "git-p4.useclientspec", "true"]) return True class P4Unshelve(Command): def __init__(self): Command.__init__(self) self.options = [] self.origin = "HEAD" self.description = "Unshelve a P4 changelist into a git commit" self.usage = "usage: %prog [options] changelist" self.options += [ optparse.make_option("--origin", dest="origin", help="Use this base revision instead of the default (%s)" % self.origin), ] self.verbose = False self.noCommit = False self.destbranch = "refs/remotes/p4-unshelved" def renameBranch(self, branch_name): """ Rename the existing branch to branch_name.N """ found = True for i in range(0,1000): backup_branch_name = "{0}.{1}".format(branch_name, i) if not gitBranchExists(backup_branch_name): gitUpdateRef(backup_branch_name, branch_name) # copy ref to backup gitDeleteRef(branch_name) found = True print("renamed old unshelve branch to {0}".format(backup_branch_name)) break if not found: sys.exit("gave up trying to rename existing branch {0}".format(sync.branch)) def findLastP4Revision(self, starting_point): """ Look back from starting_point for the first commit created by git-p4 to find the P4 commit we are based on, and the depot-paths. """ for parent in (range(65535)): log = extractLogMessageFromGitCommit("{0}~{1}".format(starting_point, parent)) settings = extractSettingsGitLog(log) if 'change' in settings: return settings sys.exit("could not find git-p4 commits in {0}".format(self.origin)) def createShelveParent(self, change, branch_name, sync, origin): """ Create a commit matching the parent of the shelved changelist 'change' """ parent_description = p4_describe(change, shelved=True) parent_description['desc'] = 'parent for shelved changelist {}\n'.format(change) files = sync.extractFilesFromCommit(parent_description, shelved=False, shelved_cl=change) parent_files = [] for f in files: # if it was added in the shelved changelist, it won't exist in the parent if f['action'] in self.add_actions: continue # if it was deleted in the shelved changelist it must not be deleted # in the parent - we might even need to create it if the origin branch # does not have it if f['action'] in self.delete_actions: f['action'] = 'add' parent_files.append(f) sync.commit(parent_description, parent_files, branch_name, parent=origin, allow_empty=True) print("created parent commit for {0} based on {1} in {2}".format( change, self.origin, branch_name)) def run(self, args): if len(args) != 1: return False if not gitBranchExists(self.origin): sys.exit("origin branch {0} does not exist".format(self.origin)) sync = P4Sync() changes = args # only one change at a time change = changes[0] # if the target branch already exists, rename it branch_name = "{0}/{1}".format(self.destbranch, change) if gitBranchExists(branch_name): self.renameBranch(branch_name) sync.branch = branch_name sync.verbose = self.verbose sync.suppress_meta_comment = True settings = self.findLastP4Revision(self.origin) sync.depotPaths = settings['depot-paths'] sync.branchPrefixes = sync.depotPaths sync.openStreams() sync.loadUserMapFromCache() sync.silent = True # create a commit for the parent of the shelved changelist self.createShelveParent(change, branch_name, sync, self.origin) # create the commit for the shelved changelist itself description = p4_describe(change, True) files = sync.extractFilesFromCommit(description, True, change) sync.commit(description, files, branch_name, "") sync.closeStreams() print("unshelved changelist {0} into {1}".format(change, branch_name)) return True class P4Branches(Command): def __init__(self): Command.__init__(self) self.options = [ ] self.description = ("Shows the git branches that hold imports and their " + "corresponding perforce depot paths") self.verbose = False def run(self, args): if originP4BranchesExist(): createOrUpdateBranchesFromOrigin() for line in read_pipe_lines(["git", "rev-parse", "--symbolic", "--remotes"]): line = line.strip() if not line.startswith('p4/') or line == "p4/HEAD": continue branch = line log = extractLogMessageFromGitCommit("refs/remotes/%s" % branch) settings = extractSettingsGitLog(log) print("%s <= %s (%s)" % (branch, ",".join(settings["depot-paths"]), settings["change"])) return True class HelpFormatter(optparse.IndentedHelpFormatter): def __init__(self): optparse.IndentedHelpFormatter.__init__(self) def format_description(self, description): if description: return description + "\n" else: return "" def printUsage(commands): print("usage: %s [options]" % sys.argv[0]) print("") print("valid commands: %s" % ", ".join(commands)) print("") print("Try %s --help for command specific help." % sys.argv[0]) print("") commands = { "submit" : P4Submit, "commit" : P4Submit, "sync" : P4Sync, "rebase" : P4Rebase, "clone" : P4Clone, "branches" : P4Branches, "unshelve" : P4Unshelve, } def main(): if len(sys.argv[1:]) == 0: printUsage(commands.keys()) sys.exit(2) cmdName = sys.argv[1] try: klass = commands[cmdName] cmd = klass() except KeyError: print("unknown command %s" % cmdName) print("") printUsage(commands.keys()) sys.exit(2) options = cmd.options cmd.gitdir = os.environ.get("GIT_DIR", None) args = sys.argv[2:] options.append(optparse.make_option("--verbose", "-v", dest="verbose", action="store_true")) if cmd.needsGit: options.append(optparse.make_option("--git-dir", dest="gitdir")) parser = optparse.OptionParser(cmd.usage.replace("%prog", "%prog " + cmdName), options, description = cmd.description, formatter = HelpFormatter()) try: (cmd, args) = parser.parse_args(sys.argv[2:], cmd); except: parser.print_help() raise global verbose verbose = cmd.verbose if cmd.needsGit: if cmd.gitdir == None: cmd.gitdir = os.path.abspath(".git") if not isValidGitDir(cmd.gitdir): # "rev-parse --git-dir" without arguments will try $PWD/.git cmd.gitdir = read_pipe(["git", "rev-parse", "--git-dir"]).strip() if os.path.exists(cmd.gitdir): cdup = read_pipe(["git", "rev-parse", "--show-cdup"]).strip() if len(cdup) > 0: chdir(cdup); if not isValidGitDir(cmd.gitdir): if isValidGitDir(cmd.gitdir + "/.git"): cmd.gitdir += "/.git" else: die("fatal: cannot locate git repository at %s" % cmd.gitdir) # so git commands invoked from the P4 workspace will succeed os.environ["GIT_DIR"] = cmd.gitdir if not cmd.run(args): parser.print_help() sys.exit(2) if __name__ == '__main__': main()