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-rwxr-xr-xgit-p4.py304
1 files changed, 214 insertions, 90 deletions
diff --git a/git-p4.py b/git-p4.py
index 0682e61e90..911bbce6c5 100755
--- a/git-p4.py
+++ b/git-p4.py
@@ -7,10 +7,21 @@
# 2007 Trolltech ASA
# License: MIT <http://www.opensource.org/licenses/mit-license.php>
#
-
-import optparse, sys, os, marshal, subprocess, shelve
-import tempfile, getopt, os.path, time, platform
-import re, shutil
+import sys
+if sys.hexversion < 0x02040000:
+ # The limiter is the subprocess module
+ sys.stderr.write("git-p4: requires Python 2.4 or later.\n")
+ sys.exit(1)
+import os
+import optparse
+import marshal
+import subprocess
+import tempfile
+import time
+import platform
+import re
+import shutil
+import stat
try:
from subprocess import CalledProcessError
@@ -68,12 +79,27 @@ def p4_build_cmd(cmd):
real_cmd += cmd
return real_cmd
-def chdir(dir):
- # P4 uses the PWD environment variable rather than getcwd(). Since we're
- # not using the shell, we have to set it ourselves. This path could
- # be relative, so go there first, then figure out where we ended up.
- os.chdir(dir)
- os.environ['PWD'] = os.getcwd()
+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 die(msg):
if verbose:
@@ -179,6 +205,22 @@ def p4_system(cmd):
if retcode:
raise CalledProcessError(retcode, real_cmd)
+_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)])
@@ -552,43 +594,75 @@ def gitBranchExists(branch):
return proc.wait() == 0;
_gitConfig = {}
-def gitConfig(key, args = None): # set args to "--bool", for instance
+
+def gitConfig(key):
+ if not _gitConfig.has_key(key):
+ cmd = [ "git", "config", 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 not _gitConfig.has_key(key):
- argsFilter = ""
- if args != None:
- argsFilter = "%s " % args
- cmd = "git config %s%s" % (argsFilter, key)
- _gitConfig[key] = read_pipe(cmd, ignore_error=True).strip()
+ cmd = [ "git", "config", "--bool", key ]
+ s = read_pipe(cmd, ignore_error=True)
+ v = s.strip()
+ _gitConfig[key] = v == "true"
return _gitConfig[key]
def gitConfigList(key):
if not _gitConfig.has_key(key):
- _gitConfig[key] = read_pipe("git config --get-all %s" % key, ignore_error=True).strip().split(os.linesep)
+ s = read_pipe(["git", "config", "--get-all", key], ignore_error=True)
+ _gitConfig[key] = s.strip().split(os.linesep)
return _gitConfig[key]
-def p4BranchesInGit(branchesAreInRemotes = True):
+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 += " --remotes"
+ cmdline += "--remotes"
else:
- cmdline += " --branches"
+ cmdline += "--branches"
for line in read_pipe_lines(cmdline):
line = line.strip()
- ## only import to p4/
- if not line.startswith('p4/') or line == "p4/HEAD":
+ # only import to p4/
+ if not line.startswith('p4/'):
+ continue
+ # special symbolic ref to p4/master
+ if line == "p4/HEAD":
continue
- branch = line
- # strip off p4
- branch = re.sub ("^p4/", "", line)
+ # 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()
+ 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
@@ -690,8 +764,7 @@ def p4PathStartsWith(path, prefix):
#
# we may or may not have a problem. If you have core.ignorecase=true,
# we treat DirA and dira as the same directory
- ignorecase = gitConfig("core.ignorecase", "--bool") == "true"
- if ignorecase:
+ if gitConfigBool("core.ignorecase"):
return path.lower().startswith(prefix.lower())
return path.startswith(prefix)
@@ -921,19 +994,21 @@ class P4Submit(Command, P4UserMap):
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)
+ choices=self.conflict_behavior_choices),
+ optparse.make_option("--branch", dest="branch"),
]
self.description = "Submit changes from git to the perforce depot."
self.usage += " [name of git branch to submit into perforce depot]"
self.origin = ""
self.detectRenames = False
- self.preserveUser = gitConfig("git-p4.preserveUser").lower() == "true"
+ self.preserveUser = gitConfigBool("git-p4.preserveUser")
self.dry_run = False
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
def check(self):
if len(p4CmdList("opened ...")) > 0:
@@ -1021,7 +1096,8 @@ class P4Submit(Command, P4UserMap):
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' %s" % id)
+ gitEmail = read_pipe(["git", "log", "--max-count=1",
+ "--format=%ae", id])
gitEmail = gitEmail.strip()
if not self.emails.has_key(gitEmail):
return (None,gitEmail)
@@ -1034,7 +1110,7 @@ class P4Submit(Command, P4UserMap):
(user,email) = self.p4UserForCommit(id)
if not user:
msg = "Cannot find p4 user for email %s in commit %s." % (email, id)
- if gitConfig('git-p4.allowMissingP4Users').lower() == "true":
+ if gitConfigBool("git-p4.allowMissingP4Users"):
print "%s" % msg
else:
die("Error: %s\nSet git-p4.allowMissingP4Users to true to allow this." % msg)
@@ -1129,7 +1205,7 @@ class P4Submit(Command, P4UserMap):
message. Return true if okay to continue with the submit."""
# if configured to skip the editing part, just submit
- if gitConfig("git-p4.skipSubmitEdit") == "true":
+ if gitConfigBool("git-p4.skipSubmitEdit"):
return True
# look at the modification time, to check later if the user saved
@@ -1145,7 +1221,7 @@ class P4Submit(Command, P4UserMap):
# If the file was not saved, prompt to see if this patch should
# be skipped. But skip this verification step if configured so.
- if gitConfig("git-p4.skipSubmitEditCheck") == "true":
+ if gitConfigBool("git-p4.skipSubmitEditCheck"):
return True
# modification time updated means user saved the file
@@ -1203,6 +1279,9 @@ class P4Submit(Command, P4UserMap):
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":
@@ -1221,6 +1300,8 @@ class P4Submit(Command, P4UserMap):
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)
@@ -1240,7 +1321,7 @@ class P4Submit(Command, P4UserMap):
# Patch failed, maybe it's just RCS keyword woes. Look through
# the patch to see if that's possible.
- if gitConfig("git-p4.attemptRCSCleanup","--bool") == "true":
+ if gitConfigBool("git-p4.attemptRCSCleanup"):
file = None
pattern = None
kwfiles = {}
@@ -1261,6 +1342,10 @@ class P4Submit(Command, P4UserMap):
for file in kwfiles:
if verbose:
print "zapping %s with %s" % (line,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
@@ -1531,7 +1616,7 @@ class P4Submit(Command, P4UserMap):
sys.exit(128)
self.useClientSpec = False
- if gitConfig("git-p4.useclientspec", "--bool") == "true":
+ if gitConfigBool("git-p4.useclientspec"):
self.useClientSpec = True
if self.useClientSpec:
self.clientSpecDirs = getClientSpec()
@@ -1554,7 +1639,7 @@ class P4Submit(Command, P4UserMap):
new_client_dir = True
os.makedirs(self.clientPath)
- chdir(self.clientPath)
+ chdir(self.clientPath, is_client_path=True)
if self.dry_run:
print "Would synchronize p4 checkout in %s" % self.clientPath
else:
@@ -1567,11 +1652,11 @@ class P4Submit(Command, P4UserMap):
self.check()
commits = []
- for line in read_pipe_lines("git rev-list --no-merges %s..%s" % (self.origin, self.master)):
+ for line in read_pipe_lines(["git", "rev-list", "--no-merges", "%s..%s" % (self.origin, self.master)]):
commits.append(line.strip())
commits.reverse()
- if self.preserveUser or (gitConfig("git-p4.skipUserNameCheck") == "true"):
+ if self.preserveUser or gitConfigBool("git-p4.skipUserNameCheck"):
self.checkAuthorship = False
else:
self.checkAuthorship = True
@@ -1607,7 +1692,7 @@ class P4Submit(Command, P4UserMap):
else:
self.diffOpts += " -C%s" % detectCopies
- if gitConfig("git-p4.detectCopiesHarder", "--bool") == "true":
+ if gitConfigBool("git-p4.detectCopiesHarder"):
self.diffOpts += " --find-copies-harder"
#
@@ -1670,6 +1755,8 @@ class P4Submit(Command, P4UserMap):
print "All commits applied!"
sync = P4Sync()
+ if self.branch:
+ sync.branch = self.branch
sync.run([])
rebase = P4Rebase()
@@ -1689,7 +1776,7 @@ class P4Submit(Command, P4UserMap):
"--format=format:%h %s", c])
print "You will have to do 'git p4 sync' and rebase."
- if gitConfig("git-p4.exportLabels", "--bool") == "true":
+ if gitConfigBool("git-p4.exportLabels"):
self.exportLabels = True
if self.exportLabels:
@@ -1959,7 +2046,6 @@ class P4Sync(Command, P4UserMap):
self.syncWithOrigin = True
self.importIntoRemotes = True
self.maxChanges = ""
- self.isWindows = (platform.system() == "Windows")
self.keepRepoPath = False
self.depotPaths = None
self.p4BranchesInGit = []
@@ -2104,7 +2190,14 @@ class P4Sync(Command, P4UserMap):
# 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.
+ #
text = p4_read_pipe(['print', '-q', '-o', '-', file['depotFile']])
+ if p4_version_string().find("/NT") >= 0:
+ text = text.replace("\r\n", "\n")
contents = [ text ]
if type_base == "apple":
@@ -2120,15 +2213,6 @@ class P4Sync(Command, P4UserMap):
print "\nIgnoring apple filetype file %s" % file['depotFile']
return
- # Perhaps windows wants unicode, utf16 newlines translated too;
- # but this is not doing it.
- if self.isWindows and type_base == "text":
- mangled = []
- for data in contents:
- data = data.replace("\r\n", "\n")
- mangled.append(data)
- contents = mangled
-
# Note that we do not try to de-mangle keywords on utf16 files,
# even though in theory somebody may want that.
pattern = p4_keywords_regexp_for_type(type_base, type_mods)
@@ -2523,13 +2607,6 @@ class P4Sync(Command, P4UserMap):
branch = branch[len(self.projectName):]
self.knownBranches[branch] = branch
- def listExistingP4GitBranches(self):
- # branches holds mapping from name to commit
- branches = p4BranchesInGit(self.importIntoRemotes)
- self.p4BranchesInGit = branches.keys()
- for branch in branches.keys():
- self.initialParents[self.refPrefix + branch] = branches[branch]
-
def updateOptionDict(self, d):
option_keys = {}
if self.keepRepoPath:
@@ -2613,7 +2690,8 @@ class P4Sync(Command, P4UserMap):
def searchParent(self, parent, branch, target):
parentFound = False
- for blob in read_pipe_lines(["git", "rev-list", "--reverse", "--no-merges", parent]):
+ for blob in read_pipe_lines(["git", "rev-list", "--reverse",
+ "--no-merges", parent]):
blob = blob.strip()
if len(read_pipe(["git", "diff-tree", blob, target])) == 0:
parentFound = True
@@ -2684,7 +2762,7 @@ class P4Sync(Command, P4UserMap):
blob = None
if len(parent) > 0:
- tempBranch = os.path.join(self.tempBranchLocation, "%d" % (change))
+ tempBranch = "%s/%d" % (self.tempBranchLocation, change)
if self.verbose:
print "Creating temporary branch: " + tempBranch
self.commit(description, filesForCommit, tempBranch)
@@ -2701,6 +2779,7 @@ class P4Sync(Command, P4UserMap):
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()
@@ -2766,41 +2845,38 @@ class P4Sync(Command, P4UserMap):
def run(self, args):
self.depotPaths = []
self.changeRange = ""
- self.initialParent = ""
self.previousDepotPaths = []
+ self.hasOrigin = False
# map from branch depot path to parent branch
self.knownBranches = {}
self.initialParents = {}
- self.hasOrigin = originP4BranchesExist()
- if not self.syncWithOrigin:
- self.hasOrigin = False
if self.importIntoRemotes:
self.refPrefix = "refs/remotes/p4/"
else:
self.refPrefix = "refs/heads/p4/"
- if self.syncWithOrigin and self.hasOrigin:
- if not self.silent:
- print "Syncing with origin first by calling git fetch origin"
- system("git fetch origin")
+ 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")
+ 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 %s refs/heads/p4" % self.branch)
- system("git branch -D p4");
- # create it /after/ importing, when master exists
- if not gitBranchExists(self.refPrefix + "HEAD") and self.importIntoRemotes and gitBranchExists(self.branch):
- system("git symbolic-ref %sHEAD %s" % (self.refPrefix, self.branch))
+ 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 gitConfig("git-p4.useclientspec", "--bool") == "true":
+ if gitConfigBool("git-p4.useclientspec"):
self.useClientSpec = True
if self.useClientSpec:
self.clientSpecDirs = getClientSpec()
@@ -2810,12 +2886,25 @@ class P4Sync(Command, P4UserMap):
if args == []:
if self.hasOrigin:
createOrUpdateBranchesFromOrigin(self.refPrefix, self.silent)
- self.listExistingP4GitBranches()
+
+ # 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
@@ -2852,13 +2941,21 @@ class P4Sync(Command, P4UserMap):
if p4Change > 0:
self.depotPaths = sorted(self.previousDepotPaths)
self.changeRange = "@%s,#head" % p4Change
- if not self.detectBranches:
- self.initialParent = parseRevision(self.branch)
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/"):
- self.branch = "refs/heads/" + self.branch
+ 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:
@@ -2969,8 +3066,21 @@ class P4Sync(Command, P4UserMap):
else:
# catch "git p4 sync" with no new branches, in a repo that
# does not have any existing p4 branches
- if len(args) == 0 and not self.p4BranchesInGit:
- die("No remote p4 branches. Perhaps you never did \"git p4 clone\" in here.");
+ if len(args) == 0:
+ if not self.p4BranchesInGit:
+ die("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:
+ die("Error: branch %s does not exist." % self.branch)
+ else:
+ die("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)
@@ -2988,6 +3098,14 @@ class P4Sync(Command, P4UserMap):
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:
@@ -2998,7 +3116,7 @@ class P4Sync(Command, P4UserMap):
sys.stdout.write("%s " % b)
sys.stdout.write("\n")
- if gitConfig("git-p4.importLabels", "--bool") == "true":
+ if gitConfigBool("git-p4.importLabels"):
self.importLabels = True
if self.importLabels:
@@ -3020,6 +3138,13 @@ class P4Sync(Command, P4UserMap):
read_pipe("git update-ref -d %s" % branch)
os.rmdir(os.path.join(os.environ.get("GIT_DIR", ".git"), self.tempBranchLocation))
+ # Create a symbolic ref p4/HEAD pointing to p4/<branch> 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):
@@ -3109,6 +3234,7 @@ class P4Clone(P4Sync):
self.cloneExclude = ["/"+p for p in self.cloneExclude]
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:
@@ -3129,17 +3255,15 @@ class P4Clone(P4Sync):
if not P4Sync.run(self, depotPaths):
return False
- if self.branch != "master":
- if self.importIntoRemotes:
- masterbranch = "refs/remotes/p4/master"
- else:
- masterbranch = "refs/heads/p4/master"
- if gitBranchExists(masterbranch):
- system("git branch master %s" % masterbranch)
- if not self.cloneBare:
- system("git checkout -f")
- else:
- print "Could not detect main branch. No checkout/master branch created."
+
+ # create a master branch and check out a work tree
+ if gitBranchExists(self.branch):
+ system([ "git", "branch", "master", self.branch ])
+ if not self.cloneBare:
+ system([ "git", "checkout", "-f" ])
+ else:
+ print 'Not checking out any branch, use ' \
+ '"git checkout -q -b master <branch>"'
# auto-set this variable if invoked with --use-client-spec
if self.useClientSpec_from_options:
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-18 12:19:16 +0000