svn2git

import argparse
from subprocess import check_output,PIPE,run
import re
parser = argparse.ArgumentParser()

parser.add_argument("-u","--svn-url",dest="svn_url",help="Subversion URL")
parser.add_argument("-n","--last-rev",dest="rev",help="Clone last N num revision",type=int)
parser.add_argument("-d","--output-dir",dest="mydir",help="Clone to this directory")

args = parser.parse_args()

print("SvnUrl {}  nRevsions {} CloneDirectory {} ".format(args.svn_url,args.rev,args.mydir))

get_rev = "--limit=" + str(args.rev)
svnurl = args.svn_url

REV_COMMAND = ['svn','log', args.svn_url,'-rHEAD:1', get_rev]

def getsvnrev(rev):
    log = run(rev,stdout=PIPE,universal_newlines=True).stdout
    #log = check_output(rev,universal_newlines=True)
    print(log)
    res = re.findall(r'^r[0-9][0-9][0-9][0-9]+', log, flags=re.MULTILINE)[-1][1:]

    return res

svnrev = getsvnrev(REV_COMMAND)

lastrev = "-r" + svnrev + ":HEAD"
SVN_GIT_COMMAND = ['git','svn','clone',lastrev,args.svn_url,args.mydir]

def gitsvnclone(svn2git_cmd):
    print("Migrating SVN Repo from revision :",svnrev)
    clone = check_output(svn2git_cmd).decode('utf-8')
    return clone

git2svn = gitsvnclone(SVN_GIT_COMMAND)

Find an SVN revision that occurred N revisions ago and Perform a git svn clone based on the last N revisions of the SVN repo. This is useful if you have a giant SVN repo you want to move to git, but you don't want to clone the entire history.