results = p4CmdList(["changes", "-m", "1"], skip_info=True)
return int(results[0]['change'])
-def p4_describe(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."""
- ds = p4CmdList(["describe", "-s", str(change)], skip_info=True)
+ 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)))
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):
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')]
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")
if self.verbose:
print "checkpoint finished: " + out
- def extractFilesFromCommit(self, commit):
+ def cmp_shelved(self, path, filerev, revision):
+ """ Determine if a path at revision #filerev is the same as the file
+ at revision @revision for a shelved changelist. If they don't match,
+ unshelving won't be safe (we will get other changes mixed in).
+
+ This is comparing the revision that the shelved changelist is *based* on, not
+ the shelved changelist itself.
+ """
+ ret = p4Cmd(["diff2", "{0}#{1}".format(path, filerev), "{0}@{1}".format(path, revision)])
+ if verbose:
+ print("p4 diff2 path %s filerev %s revision %s => %s" % (path, filerev, revision, ret))
+ return ret["status"] == "identical"
+
+ def extractFilesFromCommit(self, commit, shelved=False, shelved_cl = 0, origin_revision = 0):
self.cloneExclude = [re.sub(r"\.\.\.$", "", path)
for path in self.cloneExclude]
files = []
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)
+
+ # For shelved changelists, check that the revision of each file that the
+ # shelve was based on matches the revision that we are using for the
+ # starting point for git-fast-import (self.initialParent). Otherwise
+ # the resulting diff will contain deltas from multiple commits.
+
+ if file["action"] != "add" and \
+ not self.cmp_shelved(path, file["rev"], origin_revision):
+ sys.exit("change {0} not based on {1} for {2}, cannot unshelve".format(
+ commit["change"], self.initialParent, path))
+
files.append(file)
fnum = fnum + 1
return files
def streamP4FilesCbSelf(entry):
self.streamP4FilesCb(entry)
- fileArgs = ['%s#%s' % (f['path'], f['rev']) for f in filesToRead]
+ 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 = '%s@=%d' % (f['path'], f['shelved_cl'])
+ else:
+ fileArg = '%s#%s' % (f['path'], f['rev'])
+
+ fileArgs.append(fileArg)
p4CmdList(["-x", "-", "print"],
stdin=fileArgs,
self.gitStream.write(details["desc"])
if len(jobs) > 0:
self.gitStream.write("\nJobs: %s" % (' '.join(jobs)))
- 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("]\nEOT\n\n")
+
+ 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:
else:
return None
- def importChanges(self, changes):
+ def importChanges(self, changes, shelved=False, origin_revision=0):
cnt = 1
for change in changes:
- description = p4_describe(change)
+ description = p4_describe(change, shelved)
self.updateOptionDict(description)
if not self.silent:
print "Parent of %s not found. Committing into head of %s" % (branch, parent)
self.commit(description, filesForCommit, branch, parent)
else:
- files = self.extractFilesFromCommit(description)
+ files = self.extractFilesFromCommit(description, shelved, change, origin_revision)
self.commit(description, files, self.branch,
self.initialParent)
# only needed once, to connect to the previous commit
print "IO error with git fast-import. Is your git version recent enough?"
print self.gitError.read()
+ 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
- def run(self, args):
- self.depotPaths = []
- self.changeRange = ""
- self.previousDepotPaths = []
- self.hasOrigin = False
-
- # map from branch depot path to parent branch
- self.knownBranches = {}
- self.initialParents = {}
+ def closeStreams(self):
+ self.gitStream.close()
+ if self.importProcess.wait() != 0:
+ die("fast-import failed: %s" % self.gitError.read())
+ self.gitOutput.close()
+ self.gitError.close()
+ def run(self, args):
if self.importIntoRemotes:
self.refPrefix = "refs/remotes/p4/"
else:
b = b[len(self.projectName):]
self.createdBranches.add(b)
- self.tz = "%+03d%02d" % (- time.timezone / 3600, ((- time.timezone % 3600) / 60))
-
- 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
+ self.openStreams()
if revision:
self.importHeadRevision(revision)
missingP4Labels = p4Labels - gitTags
self.importP4Labels(self.gitStream, missingP4Labels)
- self.gitStream.close()
- if self.importProcess.wait() != 0:
- die("fast-import failed: %s" % self.gitError.read())
- self.gitOutput.close()
- self.gitError.close()
+ self.closeStreams()
# Cleanup temporary branches created during import
if self.tempBranches != []:
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 settings.has_key('change'):
+ return settings
+
+ sys.exit("could not find git-p4 commits in {0}".format(self.origin))
+
+ 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
+ sync.initialParent = self.origin
+
+ # use the first change in the list to construct the branch to unshelve into
+ 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)
+ origin_revision = settings['change']
+ sync.depotPaths = settings['depot-paths']
+ sync.branchPrefixes = sync.depotPaths
+
+ sync.openStreams()
+ sync.loadUserMapFromCache()
+ sync.silent = True
+ sync.importChanges(changes, shelved=True, origin_revision=origin_revision)
+ sync.closeStreams()
+
+ print("unshelved changelist {0} into {1}".format(change, branch_name))
+
+ return True
+
class P4Branches(Command):
def __init__(self):
Command.__init__(self)
"rebase" : P4Rebase,
"clone" : P4Clone,
"rollback" : P4RollBack,
- "branches" : P4Branches
+ "branches" : P4Branches,
+ "unshelve" : P4Unshelve,
}