Removed p4-fast-export and p4-git-sync as they've been integrated into git-p4 now.

Signed-off-by: Simon Hausmann <hausmann@kde.org>
This commit is contained in:
Simon Hausmann 2007-03-20 22:09:27 +01:00
parent c715706b15
commit c5fdcbcc20
2 changed files with 0 additions and 928 deletions

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@ -1,632 +0,0 @@
#!/usr/bin/env python
#
# p4-fast-export.py
#
# Author: Simon Hausmann <hausmann@kde.org>
# License: MIT <http://www.opensource.org/licenses/mit-license.php>
#
# TODO:
# - support integrations (at least p4i)
# - support p4 submit (hah!)
# - emulate p4's delete behavior: if a directory becomes empty delete it. continue
# with parent dir until non-empty dir is found.
#
import os, string, sys, time, os.path
import marshal, popen2, getopt, sha
from sets import Set;
dataCache = False
commandCache = False
silent = False
knownBranches = Set()
createdBranches = Set()
committedChanges = Set()
branch = "refs/heads/master"
globalPrefix = previousDepotPath = os.popen("git-repo-config --get p4.depotpath").read()
detectBranches = False
changesFile = ""
if len(globalPrefix) != 0:
globalPrefix = globalPrefix[:-1]
try:
opts, args = getopt.getopt(sys.argv[1:], "", [ "branch=", "detect-branches", "changesfile=", "silent", "known-branches=",
"cache", "command-cache" ])
except getopt.GetoptError:
print "fixme, syntax error"
sys.exit(1)
for o, a in opts:
if o == "--branch":
branch = "refs/heads/" + a
elif o == "--detect-branches":
detectBranches = True
elif o == "--changesfile":
changesFile = a
elif o == "--silent":
silent= True
elif o == "--known-branches":
for branch in open(a).readlines():
knownBranches.add(branch[:-1])
elif o == "--cache":
dataCache = True
commandCache = True
elif o == "--command-cache":
commandCache = True
if len(args) == 0 and len(globalPrefix) != 0:
if not silent:
print "[using previously specified depot path %s]" % globalPrefix
elif len(args) != 1:
print "usage: %s //depot/path[@revRange]" % sys.argv[0]
print "\n example:"
print " %s //depot/my/project/ -- to import the current head"
print " %s //depot/my/project/@all -- to import everything"
print " %s //depot/my/project/@1,6 -- to import only from revision 1 to 6"
print ""
print " (a ... is not needed in the path p4 specification, it's added implicitly)"
print ""
sys.exit(1)
else:
if len(globalPrefix) != 0 and globalPrefix != args[0]:
print "previous import used depot path %s and now %s was specified. this doesn't work!" % (globalPrefix, args[0])
sys.exit(1)
globalPrefix = args[0]
changeRange = ""
revision = ""
users = {}
initialParent = ""
lastChange = 0
initialTag = ""
if globalPrefix.find("@") != -1:
atIdx = globalPrefix.index("@")
changeRange = globalPrefix[atIdx:]
if changeRange == "@all":
changeRange = ""
elif changeRange.find(",") == -1:
revision = changeRange
changeRange = ""
globalPrefix = globalPrefix[0:atIdx]
elif globalPrefix.find("#") != -1:
hashIdx = globalPrefix.index("#")
revision = globalPrefix[hashIdx:]
globalPrefix = globalPrefix[0:hashIdx]
elif len(previousDepotPath) == 0:
revision = "#head"
if globalPrefix.endswith("..."):
globalPrefix = globalPrefix[:-3]
if not globalPrefix.endswith("/"):
globalPrefix += "/"
def p4File(depotPath):
cacheKey = "/tmp/p4cache/data-" + sha.new(depotPath).hexdigest()
data = 0
try:
if not dataCache:
raise
data = open(cacheKey, "rb").read()
except:
data = os.popen("p4 print -q \"%s\"" % depotPath, "rb").read()
if dataCache:
open(cacheKey, "wb").write(data)
return data
def p4CmdList(cmd):
fullCmd = "p4 -G %s" % cmd;
cacheKey = sha.new(fullCmd).hexdigest()
cacheKey = "/tmp/p4cache/cmd-" + cacheKey
cached = True
pipe = 0
try:
if not commandCache:
raise
pipe = open(cacheKey, "rb")
except:
cached = False
pipe = os.popen(fullCmd, "rb")
result = []
try:
while True:
entry = marshal.load(pipe)
result.append(entry)
except EOFError:
pass
pipe.close()
if not cached and commandCache:
pipe = open(cacheKey, "wb")
for r in result:
marshal.dump(r, pipe)
pipe.close()
return result
def p4Cmd(cmd):
list = p4CmdList(cmd)
result = {}
for entry in list:
result.update(entry)
return result;
def extractFilesFromCommit(commit):
files = []
fnum = 0
while commit.has_key("depotFile%s" % fnum):
path = commit["depotFile%s" % fnum]
if not path.startswith(globalPrefix):
# if not silent:
# print "\nchanged files: ignoring path %s outside of %s in change %s" % (path, globalPrefix, change)
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]
files.append(file)
fnum = fnum + 1
return files
def isSubPathOf(first, second):
if not first.startswith(second):
return False
if first == second:
return True
return first[len(second)] == "/"
def branchesForCommit(files):
global knownBranches
branches = Set()
for file in files:
relativePath = file["path"][len(globalPrefix):]
# 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 isSubPathOf(relativePath, branch):
knownBranch = True
break
# if branch.startswith(relativePath):
if isSubPathOf(branch, relativePath):
branches.remove(branch)
break
if knownBranch:
continue
for branch in knownBranches:
#if relativePath.startswith(branch):
if isSubPathOf(relativePath, branch):
if len(branches) == 0:
relativePath = branch
else:
knownBranch = True
break
if knownBranch:
continue
branches.add(relativePath)
knownBranches.add(relativePath)
return branches
def findBranchParent(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(globalPrefix):]
# strip off the filename
relPath = relPath[0:relPath.rfind("/")]
for branch in knownBranches:
if 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(details, files, branch, branchPrefix, parent, merged = ""):
global users
global lastChange
global committedChanges
epoch = details["time"]
author = details["user"]
gitStream.write("commit %s\n" % branch)
# gitStream.write("mark :%s\n" % details["change"])
committedChanges.add(int(details["change"]))
committer = ""
if author in users:
committer = "%s %s %s" % (users[author], epoch, tz)
else:
committer = "%s <a@b> %s %s" % (author, epoch, tz)
gitStream.write("committer %s\n" % committer)
gitStream.write("data <<EOT\n")
gitStream.write(details["desc"])
gitStream.write("\n[ imported from %s; change %s ]\n" % (branchPrefix, details["change"]))
gitStream.write("EOT\n\n")
if len(parent) > 0:
gitStream.write("from %s\n" % parent)
if len(merged) > 0:
gitStream.write("merge %s\n" % merged)
for file in files:
path = file["path"]
if not path.startswith(branchPrefix):
# if not silent:
# print "\nchanged files: ignoring path %s outside of branch prefix %s in change %s" % (path, branchPrefix, details["change"])
continue
rev = file["rev"]
depotPath = path + "#" + rev
relPath = path[len(branchPrefix):]
action = file["action"]
if file["type"] == "apple":
print "\nfile %s is a strange apple file that forks. Ignoring!" % path
continue
if action == "delete":
gitStream.write("D %s\n" % relPath)
else:
mode = 644
if file["type"].startswith("x"):
mode = 755
data = p4File(depotPath)
gitStream.write("M %s inline %s\n" % (mode, relPath))
gitStream.write("data %s\n" % len(data))
gitStream.write(data)
gitStream.write("\n")
gitStream.write("\n")
lastChange = int(details["change"])
def extractFilesInCommitToBranch(files, branchPrefix):
newFiles = []
for file in files:
path = file["path"]
if path.startswith(branchPrefix):
newFiles.append(file)
return newFiles
def findBranchSourceHeuristic(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(globalPrefix):]
# strip off the filename
relPath = relPath[0:relPath.rfind("/")]
for candidate in knownBranches:
if isSubPathOf(relPath, candidate) and candidate != branch:
return candidate
return ""
def changeIsBranchMerge(sourceBranch, destinationBranch, change):
sourceFiles = {}
for file in p4CmdList("files %s...@%s" % (globalPrefix + sourceBranch + "/", change)):
if file["action"] == "delete":
continue
sourceFiles[file["depotFile"]] = file
destinationFiles = {}
for file in p4CmdList("files %s...@%s" % (globalPrefix + 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():
users = {}
for output in p4CmdList("users"):
if not output.has_key("User"):
continue
users[output["User"]] = output["FullName"] + " <" + output["Email"] + ">"
return users
users = getUserMap()
if len(changeRange) == 0:
try:
sout, sin, serr = popen2.popen3("git-name-rev --tags `git-rev-parse %s`" % branch)
output = sout.read()
if output.endswith("\n"):
output = output[:-1]
tagIdx = output.index(" tags/p4/")
caretIdx = output.find("^")
endPos = len(output)
if caretIdx != -1:
endPos = caretIdx
rev = int(output[tagIdx + 9 : endPos]) + 1
changeRange = "@%s,#head" % rev
initialParent = os.popen("git-rev-parse %s" % branch).read()[:-1]
initialTag = "p4/%s" % (int(rev) - 1)
except:
pass
tz = - time.timezone / 36
tzsign = ("%s" % tz)[0]
if tzsign != '+' and tzsign != '-':
tz = "+" + ("%s" % tz)
gitOutput, gitStream, gitError = popen2.popen3("git-fast-import")
if len(revision) > 0:
print "Doing initial import of %s from revision %s" % (globalPrefix, revision)
details = { "user" : "git perforce import user", "time" : int(time.time()) }
details["desc"] = "Initial import of %s from the state at revision %s" % (globalPrefix, revision)
details["change"] = revision
newestRevision = 0
fileCnt = 0
for info in p4CmdList("files %s...%s" % (globalPrefix, revision)):
change = int(info["change"])
if change > newestRevision:
newestRevision = change
if info["action"] == "delete":
continue
for prop in [ "depotFile", "rev", "action", "type" ]:
details["%s%s" % (prop, fileCnt)] = info[prop]
fileCnt = fileCnt + 1
details["change"] = newestRevision
try:
commit(details, extractFilesFromCommit(details), branch, globalPrefix)
except:
print gitError.read()
else:
changes = []
if len(changesFile) > 0:
output = open(changesFile).readlines()
changeSet = Set()
for line in output:
changeSet.add(int(line))
for change in changeSet:
changes.append(change)
changes.sort()
else:
output = os.popen("p4 changes %s...%s" % (globalPrefix, changeRange)).readlines()
for line in output:
changeNum = line.split(" ")[1]
changes.append(changeNum)
changes.reverse()
if len(changes) == 0:
if not silent:
print "no changes to import!"
sys.exit(1)
cnt = 1
for change in changes:
description = p4Cmd("describe %s" % change)
if not silent:
sys.stdout.write("\rimporting revision %s (%s%%)" % (change, cnt * 100 / len(changes)))
sys.stdout.flush()
cnt = cnt + 1
try:
files = extractFilesFromCommit(description)
if detectBranches:
for branch in branchesForCommit(files):
knownBranches.add(branch)
branchPrefix = globalPrefix + branch + "/"
filesForCommit = extractFilesInCommitToBranch(files, branchPrefix)
merged = ""
parent = ""
########### remove cnt!!!
if branch not in createdBranches and cnt > 2:
createdBranches.add(branch)
parent = findBranchParent(branchPrefix, files)
if parent == branch:
parent = ""
# elif len(parent) > 0:
# print "%s branched off of %s" % (branch, parent)
if len(parent) == 0:
merged = 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 changeIsBranchMerge(merged, branch, int(description["change"])):
merged = ""
branch = "refs/heads/" + branch
if len(parent) > 0:
parent = "refs/heads/" + parent
if len(merged) > 0:
merged = "refs/heads/" + merged
commit(description, files, branch, branchPrefix, parent, merged)
else:
commit(description, files, branch, globalPrefix, initialParent)
initialParent = ""
except IOError:
print gitError.read()
sys.exit(1)
if not silent:
print ""
gitStream.write("reset refs/tags/p4/%s\n" % lastChange)
gitStream.write("from %s\n\n" % branch);
gitStream.close()
gitOutput.close()
gitError.close()
os.popen("git-repo-config p4.depotpath %s" % globalPrefix).read()
if len(initialTag) > 0:
os.popen("git tag -d %s" % initialTag).read()
sys.exit(0)

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#!/usr/bin/env python
#
# p4-git-sync.py
#
# Author: Simon Hausmann <hausmann@kde.org>
# Copyright: 2007 Simon Hausmann <hausmann@kde.org>
# 2007 Trolltech ASA
# License: MIT <http://www.opensource.org/licenses/mit-license.php>
#
import os, string, shelve, stat
import getopt, sys, marshal, tempfile
def p4CmdList(cmd):
cmd = "p4 -G %s" % cmd
pipe = os.popen(cmd, "rb")
result = []
try:
while True:
entry = marshal.load(pipe)
result.append(entry)
except EOFError:
pass
pipe.close()
return result
def p4Cmd(cmd):
list = p4CmdList(cmd)
result = {}
for entry in list:
result.update(entry)
return result;
def die(msg):
sys.stderr.write(msg + "\n")
sys.exit(1)
def tryGitDir(path):
if os.path.exists(path + "/HEAD") and os.path.exists(path + "/refs") and os.path.exists(path + "/objects"):
return True;
return False
try:
opts, args = getopt.getopt(sys.argv[1:], "", [ "continue", "git-dir=", "origin=", "reset", "master=",
"submit-log-subst=", "log-substitutions=", "noninteractive",
"dry-run" ])
except getopt.GetoptError:
print "fixme, syntax error"
sys.exit(1)
logSubstitutions = {}
logSubstitutions["<enter description here>"] = "%log%"
logSubstitutions["\tDetails:"] = "\tDetails: %log%"
gitdir = os.environ.get("GIT_DIR", "")
origin = "origin"
master = ""
firstTime = True
reset = False
interactive = True
dryRun = False
for o, a in opts:
if o == "--git-dir":
gitdir = a
elif o == "--origin":
origin = a
elif o == "--master":
master = a
elif o == "--continue":
firstTime = False
elif o == "--reset":
reset = True
firstTime = True
elif o == "--submit-log-subst":
key = a.split("%")[0]
value = a.split("%")[1]
logSubstitutions[key] = value
elif o == "--log-substitutions":
for line in open(a, "r").readlines():
tokens = line[:-1].split("=")
logSubstitutions[tokens[0]] = tokens[1]
elif o == "--noninteractive":
interactive = False
elif o == "--dry-run":
dryRun = True
if len(gitdir) == 0:
gitdir = ".git"
else:
os.environ["GIT_DIR"] = gitdir
if not tryGitDir(gitdir):
if tryGitDir(gitdir + "/.git"):
gitdir += "/.git"
os.environ["GIT_DIR"] = gitdir
else:
die("fatal: %s seems not to be a git repository." % gitdir)
configFile = gitdir + "/p4-git-sync.cfg"
origin = "origin"
if len(args) == 1:
origin = args[0]
if len(master) == 0:
sys.stdout.write("Auto-detecting current branch: ")
master = os.popen("git-name-rev HEAD").read().split(" ")[1][:-1]
if len(master) == 0 or not os.path.exists("%s/refs/heads/%s" % (gitdir, master)):
die("\nFailed to detect current branch! Aborting!");
sys.stdout.write("%s\n" % master)
def system(cmd):
if os.system(cmd) != 0:
die("command failed: %s" % cmd)
def check():
if len(p4CmdList("opened ...")) > 0:
die("You have files opened with perforce! Close them before starting the sync.")
def start(config):
if len(config) > 0 and not reset:
die("Cannot start sync. Previous sync config found at %s" % configFile)
#if len(os.popen("git-update-index --refresh").read()) > 0:
# die("Your working tree is not clean. Check with git status!")
commits = []
for line in os.popen("git-rev-list --no-merges %s..%s" % (origin, master)).readlines():
commits.append(line[:-1])
commits.reverse()
config["commits"] = commits
print "Creating temporary p4-sync branch from %s ..." % origin
system("git checkout -f -b p4-sync %s" % origin)
# print "Cleaning index..."
# system("git checkout -f")
def prepareLogMessage(template, message):
result = ""
for line in template.split("\n"):
if line.startswith("#"):
result += line + "\n"
continue
substituted = False
for key in logSubstitutions.keys():
if line.find(key) != -1:
value = logSubstitutions[key]
value = value.replace("%log%", message)
if value != "@remove@":
result += line.replace(key, value) + "\n"
substituted = True
break
if not substituted:
result += line + "\n"
return result
def apply(id):
global interactive
print "Applying %s" % (os.popen("git-log --max-count=1 --pretty=oneline %s" % id).read())
diff = os.popen("git diff-tree -r --name-status \"%s^\" \"%s\"" % (id, id)).readlines()
filesToAdd = set()
filesToDelete = set()
for line in diff:
modifier = line[0]
path = line[1:].strip()
if modifier == "M":
system("p4 edit %s" % path)
elif modifier == "A":
filesToAdd.add(path)
if path in filesToDelete:
filesToDelete.remove(path)
elif modifier == "D":
filesToDelete.add(path)
if path in filesToAdd:
filesToAdd.remove(path)
else:
die("unknown modifier %s for %s" % (modifier, path))
system("git-diff-files --name-only -z | git-update-index --remove -z --stdin")
system("git cherry-pick --no-commit \"%s\"" % id)
#system("git format-patch --stdout -k \"%s^\"..\"%s\" | git-am -k" % (id, id))
#system("git branch -D tmp")
#system("git checkout -f -b tmp \"%s^\"" % id)
for f in filesToAdd:
system("p4 add %s" % f)
for f in filesToDelete:
system("p4 revert %s" % f)
system("p4 delete %s" % f)
logMessage = ""
foundTitle = False
for log in os.popen("git-cat-file commit %s" % id).readlines():
if not foundTitle:
if len(log) == 1:
foundTitle = 1
continue
if len(logMessage) > 0:
logMessage += "\t"
logMessage += log
template = os.popen("p4 change -o").read()
if interactive:
submitTemplate = prepareLogMessage(template, logMessage)
diff = os.popen("p4 diff -du ...").read()
for newFile in filesToAdd:
diff += "==== new file ====\n"
diff += "--- /dev/null\n"
diff += "+++ %s\n" % newFile
f = open(newFile, "r")
for line in f.readlines():
diff += "+" + line
f.close()
pipe = os.popen("less", "w")
pipe.write(submitTemplate + diff)
pipe.close()
response = "e"
while response == "e":
response = raw_input("Do you want to submit this change (y/e/n)? ")
if response == "e":
[handle, fileName] = tempfile.mkstemp()
tmpFile = os.fdopen(handle, "w+")
tmpFile.write(submitTemplate)
tmpFile.close()
editor = os.environ.get("EDITOR", "vi")
system(editor + " " + fileName)
tmpFile = open(fileName, "r")
submitTemplate = tmpFile.read()
tmpFile.close()
os.remove(fileName)
if response == "y" or response == "yes":
if dryRun:
print submitTemplate
raw_input("Press return to continue...")
else:
pipe = os.popen("p4 submit -i", "w")
pipe.write(submitTemplate)
pipe.close()
else:
print "Not submitting!"
interactive = False
else:
fileName = "submit.txt"
file = open(fileName, "w+")
file.write(prepareLogMessage(template, logMessage))
file.close()
print "Perforce submit template written as %s. Please review/edit and then use p4 submit -i < %s to submit directly!" % (fileName, fileName)
check()
config = shelve.open(configFile, writeback=True)
if firstTime:
start(config)
commits = config.get("commits", [])
while len(commits) > 0:
firstTime = False
commit = commits[0]
commits = commits[1:]
config["commits"] = commits
apply(commit)
if not interactive:
break
config.close()
if len(commits) == 0:
if firstTime:
print "No changes found to apply between %s and current HEAD" % origin
else:
print "All changes applied!"
print "Deleting temporary p4-sync branch and going back to %s" % master
system("git checkout %s" % master)
system("git branch -D p4-sync")
print "Cleaning out your perforce checkout by doing p4 edit ... ; p4 revert ..."
system("p4 edit ... >/dev/null")
system("p4 revert ... >/dev/null")
os.remove(configFile)