mirror of
https://github.com/git/git.git
synced 2024-11-28 04:23:30 +08:00
contrib: remove git-p4import
The git p4import documentation has suggested git p4 as a better alternative for more than 6 years. (According to the mailing list discussion when it was moved to contrib/, git-p4import has serious bugs --- e.g., its incremental mode just doesn't work.) Since then, git p4 has been actively developed and was promoted to a standard git command alongside git svn. Searches on google.com/trends and stackoverflow suggest that no one is looking for git-p4import any more. Remove it. Noticed while considering marking the contrib/p4import/git-p4import.py script executable as part of a wider sweep. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Acked-by: Pete Wyckoff <pw@padd.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Nieder
Junio C Hamano
parent
2e820ba9bc
commit
30a3318ac0
@ -1 +0,0 @@
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Please see contrib/fast-import/git-p4 for a better Perforce importer.
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@ -1,365 +0,0 @@
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#!/usr/bin/env python
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#
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# This tool is copyright (c) 2006, Sean Estabrooks.
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# It is released under the Gnu Public License, version 2.
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#
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# Import Perforce branches into Git repositories.
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# Checking out the files is done by calling the standard p4
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# client which you must have properly configured yourself
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#
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import marshal
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import os
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import sys
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import time
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import getopt
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if sys.hexversion < 0x02020000:
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# The behavior of the marshal module changed significantly in 2.2
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sys.stderr.write("git-p4import.py: requires Python 2.2 or later.\n")
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sys.exit(1)
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from signal import signal, \
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SIGPIPE, SIGINT, SIG_DFL, \
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default_int_handler
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signal(SIGPIPE, SIG_DFL)
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s = signal(SIGINT, SIG_DFL)
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if s != default_int_handler:
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signal(SIGINT, s)
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def die(msg, *args):
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for a in args:
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msg = "%s %s" % (msg, a)
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print "git-p4import fatal error:", msg
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sys.exit(1)
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def usage():
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print "USAGE: git-p4import [-q|-v] [--authors=<file>] [-t <timezone>] [//p4repo/path <branch>]"
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sys.exit(1)
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verbosity = 1
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logfile = "/dev/null"
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ignore_warnings = False
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stitch = 0
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tagall = True
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def report(level, msg, *args):
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global verbosity
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global logfile
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for a in args:
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msg = "%s %s" % (msg, a)
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fd = open(logfile, "a")
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fd.writelines(msg)
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fd.close()
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if level <= verbosity:
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print msg
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class p4_command:
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def __init__(self, _repopath):
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try:
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global logfile
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self.userlist = {}
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if _repopath[-1] == '/':
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self.repopath = _repopath[:-1]
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else:
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self.repopath = _repopath
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if self.repopath[-4:] != "/...":
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self.repopath= "%s/..." % self.repopath
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f=os.popen('p4 -V 2>>%s'%logfile, 'rb')
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a = f.readlines()
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if f.close():
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raise
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except:
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die("Could not find the \"p4\" command")
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def p4(self, cmd, *args):
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global logfile
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cmd = "%s %s" % (cmd, ' '.join(args))
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report(2, "P4:", cmd)
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f=os.popen('p4 -G %s 2>>%s' % (cmd,logfile), 'rb')
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list = []
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while 1:
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try:
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list.append(marshal.load(f))
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except EOFError:
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break
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self.ret = f.close()
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return list
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def sync(self, id, force=False, trick=False, test=False):
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if force:
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ret = self.p4("sync -f %s@%s"%(self.repopath, id))[0]
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elif trick:
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ret = self.p4("sync -k %s@%s"%(self.repopath, id))[0]
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elif test:
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ret = self.p4("sync -n %s@%s"%(self.repopath, id))[0]
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else:
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ret = self.p4("sync %s@%s"%(self.repopath, id))[0]
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if ret['code'] == "error":
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data = ret['data'].upper()
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if data.find('VIEW') > 0:
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die("Perforce reports %s is not in client view"% self.repopath)
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elif data.find('UP-TO-DATE') < 0:
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die("Could not sync files from perforce", self.repopath)
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def changes(self, since=0):
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try:
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list = []
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for rec in self.p4("changes %s@%s,#head" % (self.repopath, since+1)):
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list.append(rec['change'])
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list.reverse()
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return list
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except:
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return []
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def authors(self, filename):
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f=open(filename)
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for l in f.readlines():
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self.userlist[l[:l.find('=')].rstrip()] = \
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(l[l.find('=')+1:l.find('<')].rstrip(),l[l.find('<')+1:l.find('>')])
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f.close()
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for f,e in self.userlist.items():
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report(2, f, ":", e[0], " <", e[1], ">")
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def _get_user(self, id):
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if not self.userlist.has_key(id):
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try:
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user = self.p4("users", id)[0]
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self.userlist[id] = (user['FullName'], user['Email'])
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except:
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self.userlist[id] = (id, "")
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return self.userlist[id]
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def _format_date(self, ticks):
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symbol='+'
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name = time.tzname[0]
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offset = time.timezone
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if ticks[8]:
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name = time.tzname[1]
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offset = time.altzone
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if offset < 0:
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offset *= -1
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symbol = '-'
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localo = "%s%02d%02d %s" % (symbol, offset / 3600, offset % 3600, name)
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tickso = time.strftime("%a %b %d %H:%M:%S %Y", ticks)
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return "%s %s" % (tickso, localo)
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def where(self):
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try:
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return self.p4("where %s" % self.repopath)[-1]['path']
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except:
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return ""
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def describe(self, num):
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desc = self.p4("describe -s", num)[0]
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self.msg = desc['desc']
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self.author, self.email = self._get_user(desc['user'])
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self.date = self._format_date(time.localtime(long(desc['time'])))
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return self
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class git_command:
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def __init__(self):
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try:
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self.version = self.git("--version")[0][12:].rstrip()
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except:
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die("Could not find the \"git\" command")
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try:
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self.gitdir = self.get_single("rev-parse --git-dir")
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report(2, "gdir:", self.gitdir)
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except:
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die("Not a git repository... did you forget to \"git init\" ?")
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try:
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self.cdup = self.get_single("rev-parse --show-cdup")
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if self.cdup != "":
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os.chdir(self.cdup)
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self.topdir = os.getcwd()
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report(2, "topdir:", self.topdir)
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except:
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die("Could not find top git directory")
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def git(self, cmd):
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global logfile
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report(2, "GIT:", cmd)
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f=os.popen('git %s 2>>%s' % (cmd,logfile), 'rb')
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r=f.readlines()
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self.ret = f.close()
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return r
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def get_single(self, cmd):
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return self.git(cmd)[0].rstrip()
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def current_branch(self):
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try:
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testit = self.git("rev-parse --verify HEAD")[0]
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return self.git("symbolic-ref HEAD")[0][11:].rstrip()
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except:
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return None
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def get_config(self, variable):
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try:
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return self.git("config --get %s" % variable)[0].rstrip()
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except:
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return None
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def set_config(self, variable, value):
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try:
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self.git("config %s %s"%(variable, value) )
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except:
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die("Could not set %s to " % variable, value)
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def make_tag(self, name, head):
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self.git("tag -f %s %s"%(name,head))
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def top_change(self, branch):
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try:
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a=self.get_single("name-rev --tags refs/heads/%s" % branch)
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loc = a.find(' tags/') + 6
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if a[loc:loc+3] != "p4/":
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raise
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return int(a[loc+3:][:-2])
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except:
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return 0
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def update_index(self):
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self.git("ls-files -m -d -o -z | git update-index --add --remove -z --stdin")
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def checkout(self, branch):
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self.git("checkout %s" % branch)
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def repoint_head(self, branch):
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self.git("symbolic-ref HEAD refs/heads/%s" % branch)
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def remove_files(self):
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self.git("ls-files | xargs rm")
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def clean_directories(self):
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self.git("clean -d")
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def fresh_branch(self, branch):
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report(1, "Creating new branch", branch)
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self.git("ls-files | xargs rm")
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os.remove(".git/index")
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self.repoint_head(branch)
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self.git("clean -d")
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def basedir(self):
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return self.topdir
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def commit(self, author, email, date, msg, id):
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self.update_index()
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fd=open(".msg", "w")
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fd.writelines(msg)
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fd.close()
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try:
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current = self.get_single("rev-parse --verify HEAD")
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head = "-p HEAD"
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except:
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current = ""
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head = ""
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tree = self.get_single("write-tree")
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for r,l in [('DATE',date),('NAME',author),('EMAIL',email)]:
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os.environ['GIT_AUTHOR_%s'%r] = l
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os.environ['GIT_COMMITTER_%s'%r] = l
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commit = self.get_single("commit-tree %s %s < .msg" % (tree,head))
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os.remove(".msg")
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self.make_tag("p4/%s"%id, commit)
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self.git("update-ref HEAD %s %s" % (commit, current) )
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try:
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opts, args = getopt.getopt(sys.argv[1:], "qhvt:",
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["authors=","help","stitch=","timezone=","log=","ignore","notags"])
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except getopt.GetoptError:
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usage()
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for o, a in opts:
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if o == "-q":
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verbosity = 0
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if o == "-v":
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verbosity += 1
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if o in ("--log"):
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logfile = a
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if o in ("--notags"):
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tagall = False
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if o in ("-h", "--help"):
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usage()
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if o in ("--ignore"):
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ignore_warnings = True
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git = git_command()
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branch=git.current_branch()
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for o, a in opts:
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if o in ("-t", "--timezone"):
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git.set_config("perforce.timezone", a)
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if o in ("--stitch"):
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git.set_config("perforce.%s.path" % branch, a)
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stitch = 1
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if len(args) == 2:
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branch = args[1]
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git.checkout(branch)
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if branch == git.current_branch():
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die("Branch %s already exists!" % branch)
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report(1, "Setting perforce to ", args[0])
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git.set_config("perforce.%s.path" % branch, args[0])
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elif len(args) != 0:
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die("You must specify the perforce //depot/path and git branch")
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p4path = git.get_config("perforce.%s.path" % branch)
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if p4path == None:
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die("Do not know Perforce //depot/path for git branch", branch)
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p4 = p4_command(p4path)
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for o, a in opts:
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if o in ("-a", "--authors"):
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p4.authors(a)
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localdir = git.basedir()
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if p4.where()[:len(localdir)] != localdir:
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report(1, "**WARNING** Appears p4 client is misconfigured")
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report(1, " for sync from %s to %s" % (p4.repopath, localdir))
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if ignore_warnings != True:
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die("Reconfigure or use \"--ignore\" on command line")
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if stitch == 0:
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top = git.top_change(branch)
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else:
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top = 0
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changes = p4.changes(top)
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count = len(changes)
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if count == 0:
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report(1, "Already up to date...")
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sys.exit(0)
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ptz = git.get_config("perforce.timezone")
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if ptz:
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report(1, "Setting timezone to", ptz)
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os.environ['TZ'] = ptz
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time.tzset()
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if stitch == 1:
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git.remove_files()
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git.clean_directories()
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p4.sync(changes[0], force=True)
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elif top == 0 and branch != git.current_branch():
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p4.sync(changes[0], test=True)
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report(1, "Creating new initial commit");
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git.fresh_branch(branch)
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p4.sync(changes[0], force=True)
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else:
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p4.sync(changes[0], trick=True)
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report(1, "processing %s changes from p4 (%s) to git (%s)" % (count, p4.repopath, branch))
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for id in changes:
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report(1, "Importing changeset", id)
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change = p4.describe(id)
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p4.sync(id)
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if tagall :
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git.commit(change.author, change.email, change.date, change.msg, id)
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else:
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git.commit(change.author, change.email, change.date, change.msg, "import")
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if stitch == 1:
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git.clean_directories()
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stitch = 0
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@ -1,167 +0,0 @@
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git-p4import(1)
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===============
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NAME
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----
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git-p4import - Import a Perforce repository into git
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SYNOPSIS
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--------
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[verse]
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`git-p4import` [-q|-v] [--notags] [--authors <file>] [-t <timezone>]
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<//p4repo/path> <branch>
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`git-p4import` --stitch <//p4repo/path>
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`git-p4import`
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DESCRIPTION
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-----------
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Import a Perforce repository into an existing git repository. When
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a <//p4repo/path> and <branch> are specified a new branch with the
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given name will be created and the initial import will begin.
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Once the initial import is complete you can do an incremental import
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of new commits from the Perforce repository. You do this by checking
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out the appropriate git branch and then running `git-p4import` without
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any options.
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The standard p4 client is used to communicate with the Perforce
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repository; it must be configured correctly in order for `git-p4import`
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to operate (see below).
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OPTIONS
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-------
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-q::
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Do not display any progress information.
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-v::
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Give extra progress information.
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\--authors::
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Specify an authors file containing a mapping of Perforce user
|
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ids to full names and email addresses (see Notes below).
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\--notags::
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Do not create a tag for each imported commit.
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\--stitch::
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Import the contents of the given perforce branch into the
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currently checked out git branch.
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\--log::
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Store debugging information in the specified file.
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-t::
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Specify that the remote repository is in the specified timezone.
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Timezone must be in the format "US/Pacific" or "Europe/London"
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etc. You only need to specify this once, it will be saved in
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the git config file for the repository.
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<//p4repo/path>::
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The Perforce path that will be imported into the specified branch.
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|
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<branch>::
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The new branch that will be created to hold the Perforce imports.
|
||||
|
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P4 Client
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---------
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You must make the `p4` client command available in your $PATH and
|
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configure it to communicate with the target Perforce repository.
|
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Typically this means you must set the "$P4PORT" and "$P4CLIENT"
|
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environment variables.
|
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|
||||
You must also configure a `p4` client "view" which maps the Perforce
|
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branch into the top level of your git repository, for example:
|
||||
|
||||
------------
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Client: myhost
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|
||||
Root: /home/sean/import
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|
||||
Options: noallwrite clobber nocompress unlocked modtime rmdir
|
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|
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View:
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//public/jam/... //myhost/jam/...
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------------
|
||||
|
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With the above `p4` client setup, you could import the "jam"
|
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perforce branch into a branch named "jammy", like so:
|
||||
|
||||
------------
|
||||
$ mkdir -p /home/sean/import/jam
|
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$ cd /home/sean/import/jam
|
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$ git init
|
||||
$ git p4import //public/jam jammy
|
||||
------------
|
||||
|
||||
|
||||
Multiple Branches
|
||||
-----------------
|
||||
Note that by creating multiple "views" you can use `git-p4import`
|
||||
to import additional branches into the same git repository.
|
||||
However, the `p4` client has a limitation in that it silently
|
||||
ignores all but the last "view" that maps into the same local
|
||||
directory. So the following will *not* work:
|
||||
|
||||
------------
|
||||
View:
|
||||
//public/jam/... //myhost/jam/...
|
||||
//public/other/... //myhost/jam/...
|
||||
//public/guest/... //myhost/jam/...
|
||||
------------
|
||||
|
||||
If you want more than one Perforce branch to be imported into the
|
||||
same directory you must employ a workaround. A simple option is
|
||||
to adjust your `p4` client before each import to only include a
|
||||
single view.
|
||||
|
||||
Another option is to create multiple symlinks locally which all
|
||||
point to the same directory in your git repository and then use
|
||||
one per "view" instead of listing the actual directory.
|
||||
|
||||
|
||||
Tags
|
||||
----
|
||||
A git tag of the form p4/xx is created for every change imported from
|
||||
the Perforce repository where xx is the Perforce changeset number.
|
||||
Therefore after the import you can use git to access any commit by its
|
||||
Perforce number, e.g. git show p4/327.
|
||||
|
||||
The tag associated with the HEAD commit is also how `git-p4import`
|
||||
determines if there are new changes to incrementally import from the
|
||||
Perforce repository.
|
||||
|
||||
If you import from a repository with many thousands of changes
|
||||
you will have an equal number of p4/xxxx git tags. Git tags can
|
||||
be expensive in terms of disk space and repository operations.
|
||||
If you don't need to perform further incremental imports, you
|
||||
may delete the tags.
|
||||
|
||||
|
||||
Notes
|
||||
-----
|
||||
You can interrupt the import (e.g. ctrl-c) at any time and restart it
|
||||
without worry.
|
||||
|
||||
Author information is automatically determined by querying the
|
||||
Perforce "users" table using the id associated with each change.
|
||||
However, if you want to manually supply these mappings you can do
|
||||
so with the "--authors" option. It accepts a file containing a list
|
||||
of mappings with each line containing one mapping in the format:
|
||||
|
||||
------------
|
||||
perforce_id = Full Name <email@address.com>
|
||||
------------
|
||||
|
||||
|
||||
Author
|
||||
------
|
||||
Written by Sean Estabrooks <seanlkml@sympatico.ca>
|
||||
|
||||
|
||||
GIT
|
||||
---
|
||||
Part of the gitlink:git[7] suite
|
||||
Loading…
Reference in New Issue
Block a user