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("--known-branches", dest="knownBranches"),
- optparse.make_option("--data-cache", dest="dataCache", action="store_true"),
- optparse.make_option("--command-cache", dest="commandCache", action="store_true"),
optparse.make_option("--detect-labels", dest="detectLabels", action="store_true"),
- optparse.make_option("--with-origin", dest="syncWithOrigin", action="store_true")
+ optparse.make_option("--with-origin", dest="syncWithOrigin", action="store_true"),
+ optparse.make_option("--verbose", dest="verbose", action="store_true")
]
self.description = """Imports from Perforce into a git repository.\n
example:
self.usage += " //depot/path[@revRange]"
- self.dataCache = False
- self.commandCache = False
self.silent = False
- self.knownBranches = Set()
self.createdBranches = Set()
self.committedChanges = Set()
self.branch = ""
self.detectLabels = False
self.changesFile = ""
self.syncWithOrigin = False
+ self.verbose = False
def p4File(self, depotPath):
return os.popen("p4 print -q \"%s\"" % depotPath, "rb").read()
fnum = fnum + 1
return files
- def isSubPathOf(self, first, second):
- if not first.startswith(second):
- return False
- if first == second:
- return True
- return first[len(second)] == "/"
-
- def branchesForCommit(self, files):
- branches = Set()
-
- for file in files:
- relativePath = file["path"][len(self.depotPath):]
- # strip off the filename
- relativePath = relativePath[0:relativePath.rfind("/")]
-
- # if len(branches) == 0:
- # branches.add(relativePath)
- # knownBranches.add(relativePath)
- # continue
-
- ###### this needs more testing :)
- knownBranch = False
- for branch in branches:
- if relativePath == branch:
- knownBranch = True
- break
- # if relativePath.startswith(branch):
- if self.isSubPathOf(relativePath, branch):
- knownBranch = True
- break
- # if branch.startswith(relativePath):
- if self.isSubPathOf(branch, relativePath):
- branches.remove(branch)
- break
+ def splitFilesIntoBranches(self, commit):
+ branches = {}
- if knownBranch:
+ fnum = 0
+ while commit.has_key("depotFile%s" % fnum):
+ path = commit["depotFile%s" % fnum]
+ if not path.startswith(self.depotPath):
+ # if not self.silent:
+ # print "\nchanged files: ignoring path %s outside of %s in change %s" % (path, self.depotPath, change)
+ fnum = fnum + 1
continue
- for branch in self.knownBranches:
- #if relativePath.startswith(branch):
- if self.isSubPathOf(relativePath, branch):
- if len(branches) == 0:
- relativePath = branch
- else:
- knownBranch = True
- break
+ file = {}
+ file["path"] = path
+ file["rev"] = commit["rev%s" % fnum]
+ file["action"] = commit["action%s" % fnum]
+ file["type"] = commit["type%s" % fnum]
+ fnum = fnum + 1
- if knownBranch:
- continue
+ relPath = path[len(self.depotPath):]
- branches.add(relativePath)
- self.knownBranches.add(relativePath)
+ for branch in self.knownBranches.keys():
+ if relPath.startswith(branch):
+ if branch not in branches:
+ branches[branch] = []
+ branches[branch].append(file)
return branches
- def findBranchParent(self, branchPrefix, files):
- for file in files:
- path = file["path"]
- if not path.startswith(branchPrefix):
- continue
- action = file["action"]
- if action != "integrate" and action != "branch":
- continue
- rev = file["rev"]
- depotPath = path + "#" + rev
-
- log = p4CmdList("filelog \"%s\"" % depotPath)
- if len(log) != 1:
- print "eek! I got confused by the filelog of %s" % depotPath
- sys.exit(1);
-
- log = log[0]
- if log["action0"] != action:
- print "eek! wrong action in filelog for %s : found %s, expected %s" % (depotPath, log["action0"], action)
- sys.exit(1);
-
- branchAction = log["how0,0"]
- # if branchAction == "branch into" or branchAction == "ignored":
- # continue # ignore for branching
-
- if not branchAction.endswith(" from"):
- continue # ignore for branching
- # print "eek! file %s was not branched from but instead: %s" % (depotPath, branchAction)
- # sys.exit(1);
-
- source = log["file0,0"]
- if source.startswith(branchPrefix):
- continue
-
- lastSourceRev = log["erev0,0"]
-
- sourceLog = p4CmdList("filelog -m 1 \"%s%s\"" % (source, lastSourceRev))
- if len(sourceLog) != 1:
- print "eek! I got confused by the source filelog of %s%s" % (source, lastSourceRev)
- sys.exit(1);
- sourceLog = sourceLog[0]
-
- relPath = source[len(self.depotPath):]
- # strip off the filename
- relPath = relPath[0:relPath.rfind("/")]
-
- for branch in self.knownBranches:
- if self.isSubPathOf(relPath, branch):
- # print "determined parent branch branch %s due to change in file %s" % (branch, source)
- return branch
- # else:
- # print "%s is not a subpath of branch %s" % (relPath, branch)
-
- return ""
-
- def commit(self, details, files, branch, branchPrefix, parent = "", merged = ""):
+ def commit(self, details, files, branch, branchPrefix, parent = ""):
epoch = details["time"]
author = details["user"]
+ if self.verbose:
+ print "commit into %s" % branch
+
self.gitStream.write("commit %s\n" % branch)
# gitStream.write("mark :%s\n" % details["change"])
self.committedChanges.add(int(details["change"]))
committer = ""
+ if author not in self.users:
+ self.getUserMapFromPerforceServer()
if author in self.users:
committer = "%s %s %s" % (self.users[author], epoch, self.tz)
else:
self.gitStream.write("EOT\n\n")
if len(parent) > 0:
+ if self.verbose:
+ print "parent %s" % parent
self.gitStream.write("from %s\n" % parent)
- if len(merged) > 0:
- self.gitStream.write("merge %s\n" % merged)
-
for file in files:
path = file["path"]
if not path.startswith(branchPrefix):
change = int(details["change"])
- self.lastChange = change
-
- if change in self.labels:
+ if self.labels.has_key(change):
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" % (branchPrefix, change))
if not self.silent:
print "Tag %s does not match with change %s: file count is different." % (labelDetails["label"], change)
- def extractFilesInCommitToBranch(self, files, branchPrefix):
- newFiles = []
-
- for file in files:
- path = file["path"]
- if path.startswith(branchPrefix):
- newFiles.append(file)
-
- return newFiles
-
- def findBranchSourceHeuristic(self, files, branch, branchPrefix):
- for file in files:
- action = file["action"]
- if action != "integrate" and action != "branch":
- continue
- path = file["path"]
- rev = file["rev"]
- depotPath = path + "#" + rev
-
- log = p4CmdList("filelog \"%s\"" % depotPath)
- if len(log) != 1:
- print "eek! I got confused by the filelog of %s" % depotPath
- sys.exit(1);
-
- log = log[0]
- if log["action0"] != action:
- print "eek! wrong action in filelog for %s : found %s, expected %s" % (depotPath, log["action0"], action)
- sys.exit(1);
-
- branchAction = log["how0,0"]
-
- if not branchAction.endswith(" from"):
- continue # ignore for branching
- # print "eek! file %s was not branched from but instead: %s" % (depotPath, branchAction)
- # sys.exit(1);
-
- source = log["file0,0"]
- if source.startswith(branchPrefix):
- continue
-
- lastSourceRev = log["erev0,0"]
-
- sourceLog = p4CmdList("filelog -m 1 \"%s%s\"" % (source, lastSourceRev))
- if len(sourceLog) != 1:
- print "eek! I got confused by the source filelog of %s%s" % (source, lastSourceRev)
- sys.exit(1);
- sourceLog = sourceLog[0]
-
- relPath = source[len(self.depotPath):]
- # strip off the filename
- relPath = relPath[0:relPath.rfind("/")]
-
- for candidate in self.knownBranches:
- if self.isSubPathOf(relPath, candidate) and candidate != branch:
- return candidate
-
- return ""
-
- def changeIsBranchMerge(self, sourceBranch, destinationBranch, change):
- sourceFiles = {}
- for file in p4CmdList("files %s...@%s" % (self.depotPath + sourceBranch + "/", change)):
- if file["action"] == "delete":
- continue
- sourceFiles[file["depotFile"]] = file
-
- destinationFiles = {}
- for file in p4CmdList("files %s...@%s" % (self.depotPath + destinationBranch + "/", change)):
- destinationFiles[file["depotFile"]] = file
-
- for fileName in sourceFiles.keys():
- integrations = []
- deleted = False
- integrationCount = 0
- for integration in p4CmdList("integrated \"%s\"" % fileName):
- toFile = integration["fromFile"] # yes, it's true, it's fromFile
- if not toFile in destinationFiles:
- continue
- destFile = destinationFiles[toFile]
- if destFile["action"] == "delete":
- # print "file %s has been deleted in %s" % (fileName, toFile)
- deleted = True
- break
- integrationCount += 1
- if integration["how"] == "branch from":
- continue
-
- if int(integration["change"]) == change:
- integrations.append(integration)
- continue
- if int(integration["change"]) > change:
- continue
-
- destRev = int(destFile["rev"])
-
- startRev = integration["startFromRev"][1:]
- if startRev == "none":
- startRev = 0
- else:
- startRev = int(startRev)
-
- endRev = integration["endFromRev"][1:]
- if endRev == "none":
- endRev = 0
- else:
- endRev = int(endRev)
-
- initialBranch = (destRev == 1 and integration["how"] != "branch into")
- inRange = (destRev >= startRev and destRev <= endRev)
- newer = (destRev > startRev and destRev > endRev)
-
- if initialBranch or inRange or newer:
- integrations.append(integration)
-
- if deleted:
- continue
-
- if len(integrations) == 0 and integrationCount > 1:
- print "file %s was not integrated from %s into %s" % (fileName, sourceBranch, destinationBranch)
- return False
-
- return True
-
- def getUserMap(self):
+ def getUserMapFromPerforceServer(self):
self.users = {}
for output in p4CmdList("users"):
continue
self.users[output["User"]] = output["FullName"] + " <" + output["Email"] + ">"
+ cache = open(gitdir + "/p4-usercache.txt", "wb")
+ for user in self.users.keys():
+ cache.write("%s\t%s\n" % (user, self.users[user]))
+ cache.close();
+
+ def loadUserMapFromCache(self):
+ self.users = {}
+ try:
+ cache = open(gitdir + "/p4-usercache.txt", "rb")
+ lines = cache.readlines()
+ cache.close()
+ for line in lines:
+ entry = line[:-1].split("\t")
+ self.users[entry[0]] = entry[1]
+ except IOError:
+ self.getUserMapFromPerforceServer()
+
def getLabels(self):
self.labels = {}
label = output["label"]
revisions = {}
newestChange = 0
- for file in p4CmdList("files //...@%s" % label):
+ if self.verbose:
+ print "Querying files for label %s" % label
+ for file in p4CmdList("files %s...@%s" % (self.depotPath, label)):
revisions[file["depotFile"]] = file["rev"]
change = int(file["change"])
if change > newestChange:
self.labels[newestChange] = [output, revisions]
+ if self.verbose:
+ print "Label changes: %s" % self.labels.keys()
+
+ def getBranchMapping(self):
+ self.projectName = self.depotPath[self.depotPath[:-1].rfind("/") + 1:]
+
+ for info in p4CmdList("branches"):
+ details = p4Cmd("branch -o %s" % info["branch"])
+ viewIdx = 0
+ while details.has_key("View%s" % viewIdx):
+ 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]
+ if source.startswith(self.depotPath) and destination.startswith(self.depotPath):
+ source = source[len(self.depotPath):-4]
+ destination = destination[len(self.depotPath):-4]
+ if destination not in self.knownBranches:
+ self.knownBranches[destination] = source
+ if source not in self.knownBranches:
+ self.knownBranches[source] = source
+
+ def listExistingP4GitBranches(self):
+ self.p4BranchesInGit = []
+
+ for line in mypopen("git rev-parse --symbolic --remotes").readlines():
+ if line.startswith("p4/") and line != "p4/HEAD\n":
+ branch = line[3:-1]
+ self.p4BranchesInGit.append(branch)
+ self.initialParents["refs/remotes/p4/" + branch] = parseRevision(line[:-1])
+
def run(self, args):
self.depotPath = ""
self.changeRange = ""
self.initialParent = ""
self.previousDepotPath = ""
- # importing into default remotes/p4/* layout?
- defaultImport = False
+ # map from branch depot path to parent branch
+ self.knownBranches = {}
+ self.initialParents = {}
+
+ self.listExistingP4GitBranches()
+
+ if self.syncWithOrigin and gitBranchExists("origin") and gitBranchExists("refs/remotes/p4/master") and not self.detectBranches:
+ ### needs to be ported to multi branch import
- if self.syncWithOrigin and gitBranchExists("origin") and gitBranchExists("refs/remotes/p4/master"):
print "Syncing with origin first as requested by calling git fetch origin"
system("git fetch origin")
[originPreviousDepotPath, originP4Change] = extractDepotPathAndChangeFromGitLog(extractLogMessageFromGitCommit("origin"))
self.branch = "refs/remotes/p4/master"
if gitBranchExists("refs/heads/p4"):
system("git update-ref %s refs/heads/p4" % self.branch)
- system("git symbolic-ref refs/remotes/p4/HEAD refs/remotes/p4/master")
system("git branch -D p4");
- else:
- defaultImport = True
+ if not gitBranchExists("refs/remotes/p4/HEAD"):
+ system("git symbolic-ref refs/remotes/p4/HEAD %s" % self.branch)
if len(args) == 0:
- if not gitBranchExists(self.branch) and gitBranchExists("origin"):
+ if not gitBranchExists(self.branch) and gitBranchExists("origin") and not self.detectBranches:
+ ### needs to be ported to multi branch import
if not self.silent:
print "Creating %s branch in git repository based on origin" % self.branch
branch = self.branch
if not branch.startswith("refs"):
branch = "refs/heads/" + branch
system("git update-ref %s origin" % branch)
- if defaultImport:
- system("git symbolic-ref refs/remotes/p4/HEAD %s" % branch)
- [self.previousDepotPath, p4Change] = extractDepotPathAndChangeFromGitLog(extractLogMessageFromGitCommit(self.branch))
- if len(self.previousDepotPath) > 0 and len(p4Change) > 0:
- p4Change = int(p4Change) + 1
+ if self.verbose:
+ print "branches: %s" % self.p4BranchesInGit
+
+ p4Change = 0
+ for branch in self.p4BranchesInGit:
+ depotPath, change = extractDepotPathAndChangeFromGitLog(extractLogMessageFromGitCommit("refs/remotes/p4/" + branch))
+
+ if self.verbose:
+ print "path %s change %s" % (depotPath, change)
+
+ if len(depotPath) > 0 and len(change) > 0:
+ change = int(change) + 1
+ p4Change = max(p4Change, change)
+
+ if len(self.previousDepotPath) == 0:
+ self.previousDepotPath = depotPath
+ else:
+ i = 0
+ l = min(len(self.previousDepotPath), len(depotPath))
+ while i < l and self.previousDepotPath[i] == depotPath[i]:
+ i = i + 1
+ self.previousDepotPath = self.previousDepotPath[:i]
+
+ if p4Change > 0:
self.depotPath = self.previousDepotPath
self.changeRange = "@%s,#head" % p4Change
self.initialParent = parseRevision(self.branch)
self.revision = ""
self.users = {}
- self.lastChange = 0
if self.depotPath.find("@") != -1:
atIdx = self.depotPath.index("@")
if not self.depotPath.endswith("/"):
self.depotPath += "/"
- self.getUserMap()
+ self.loadUserMapFromCache()
self.labels = {}
if self.detectLabels:
self.getLabels();
+ if self.detectBranches:
+ 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":
+ b = b[len(self.projectName):]
+ self.createdBranches.add(b)
+
self.tz = "%+03d%02d" % (- time.timezone / 3600, ((- time.timezone % 3600) / 60))
importProcess = subprocess.Popen(["git", "fast-import"], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE);
changes.sort()
else:
+ if self.verbose:
+ print "Getting p4 changes for %s...%s" % (self.depotPath, self.changeRange)
output = mypopen("p4 changes %s...%s" % (self.depotPath, self.changeRange)).readlines()
for line in output:
cnt = cnt + 1
try:
- files = self.extractFilesFromCommit(description)
if self.detectBranches:
- for branch in self.branchesForCommit(files):
- self.knownBranches.add(branch)
+ branches = self.splitFilesIntoBranches(description)
+ for branch in branches.keys():
branchPrefix = self.depotPath + branch + "/"
- filesForCommit = self.extractFilesInCommitToBranch(files, branchPrefix)
-
- merged = ""
parent = ""
- ########### remove cnt!!!
- if branch not in self.createdBranches and cnt > 2:
+
+ filesForCommit = branches[branch]
+
+ if self.verbose:
+ print "branch is %s" % branch
+
+ if branch not in self.createdBranches:
self.createdBranches.add(branch)
- parent = self.findBranchParent(branchPrefix, files)
+ parent = self.knownBranches[branch]
if parent == branch:
parent = ""
- # elif len(parent) > 0:
- # print "%s branched off of %s" % (branch, parent)
+ elif self.verbose:
+ print "parent determined through known branches: %s" % parent
- if len(parent) == 0:
- merged = self.findBranchSourceHeuristic(filesForCommit, branch, branchPrefix)
- if len(merged) > 0:
- print "change %s could be a merge from %s into %s" % (description["change"], merged, branch)
- if not self.changeIsBranchMerge(merged, branch, int(description["change"])):
- merged = ""
+ # main branch? use master
+ if branch == "main":
+ branch = "master"
+ else:
+ branch = self.projectName + branch
- branch = "refs/heads/" + branch
+ if parent == "main":
+ parent = "master"
+ elif len(parent) > 0:
+ parent = self.projectName + parent
+
+ branch = "refs/remotes/p4/" + branch
if len(parent) > 0:
- parent = "refs/heads/" + parent
- if len(merged) > 0:
- merged = "refs/heads/" + merged
- self.commit(description, files, branch, branchPrefix, parent, merged)
+ parent = "refs/remotes/p4/" + 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]
+
+ self.commit(description, filesForCommit, branch, branchPrefix, parent)
else:
+ files = self.extractFilesFromCommit(description)
self.commit(description, files, self.branch, self.depotPath, self.initialParent)
self.initialParent = ""
except IOError:
self.gitStream.close()
+ if importProcess.wait() != 0:
+ die("fast-import failed: %s" % self.gitError.read())
self.gitOutput.close()
self.gitError.close()
- importProcess.wait()
return True
if not P4Sync.run(self, [depotPath]):
return False
if self.branch != "master":
- system("git branch master p4")
- system("git checkout -f")
+ if gitBranchExists("refs/remotes/p4/master"):
+ system("git branch master refs/remotes/p4/master")
+ system("git checkout -f")
+ else:
+ print "Could not detect main branch. No checkout/master branch created."
return True
class HelpFormatter(optparse.IndentedHelpFormatter):