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#!/usr/bin/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 incremental imports
# - create tags
# - instead of reading all files into a variable try to pipe from
# - support p4 submit (hah!)
# - don't hardcode the import to master
#
import os, string, sys, time
import marshal, popen2
if len(sys.argv) != 2:
print "usage: %s //depot/path[@revRange]" % sys.argv[0]
print "\n example:"
print " %s //depot/my/project/ -- 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)
prefix = sys.argv[1]
changeRange = ""
try:
atIdx = prefix.index("@")
changeRange = prefix[atIdx:]
prefix = prefix[0:atIdx]
except ValueError:
changeRange = ""
if prefix.endswith("..."):
prefix = prefix[:-3]
if not prefix.endswith("/"):
prefix += "/"
def p4CmdList(cmd):
pipe = os.popen("p4 -G %s" % 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 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()
output = os.popen("p4 changes %s...%s" % (prefix, changeRange)).readlines()
changes = []
for line in output:
changeNum = line.split(" ")[1]
changes.append(changeNum)
changes.reverse()
sys.stderr.write("\n")
tz = - time.timezone / 36
gitOutput, gitStream, gitError = popen2.popen3("git-fast-import")
cnt = 1
for change in changes:
description = p4Cmd("describe %s" % change)
sys.stdout.write("\rimporting revision %s (%s%%)" % (change, cnt * 100 / len(changes)))
sys.stdout.flush()
cnt = cnt + 1
epoch = description["time"]
author = description["user"]
gitStream.write("commit refs/heads/master\n")
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(description["desc"])
gitStream.write("\n[ imported from %s; change %s ]\n" % (prefix, change))
gitStream.write("EOT\n\n")
fnum = 0
while description.has_key("depotFile%s" % fnum):
path = description["depotFile%s" % fnum]
if not path.startswith(prefix):
print "\nchanged files: ignoring path %s outside of %s in change %s" % (path, prefix, change)
fnum = fnum + 1
continue
rev = description["rev%s" % fnum]
depotPath = path + "#" + rev
relPath = path[len(prefix):]
action = description["action%s" % fnum]
if action == "delete":
gitStream.write("D %s\n" % relPath)
else:
mode = 644
if description["type%s" % fnum].startswith("x"):
mode = 755
data = os.popen("p4 print -q \"%s\"" % depotPath, "rb").read()
gitStream.write("M %s inline %s\n" % (mode, relPath))
gitStream.write("data %s\n" % len(data))
gitStream.write(data)
gitStream.write("\n")
fnum = fnum + 1
gitStream.write("\n")
gitStream.write("tag p4/%s\n" % change)
gitStream.write("from refs/heads/master\n");
gitStream.write("tagger %s\n" % committer);
gitStream.write("data 0\n\n")
gitStream.close()
gitOutput.close()
gitError.close()
print ""
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