#!/usr/bin/env python

# Update a git repo so that it uses ssh for the pushurl

# but http for pulling, so you don't need a password to pull.

# Unfortunately git uses lots of different syntaxes for the same thing.

# Examples:

# pushurl = ssh://git.gnome.org/git/gimp

# url = git://git.gnome.org/gimp

# OR

# pushurl = [email protected]:akkana/scripts.git

# url = https://github.com/akkana/scripts.git

# OR

# pushurl = github.com:akkana/hexchat.git

# url = https://github.com/akkana/hexchat.git

#

# Provide the repo name; the lines are in reponame/.git/config

#

# Share and enjoy under the GPL v2 or later.

import sys, os

import re

def repopull(repoloc):

configfile = os.path.join(repoloc, ".git", "config")

if not os.path.exists(configfile):

print configfile, "doesn't exist"

return

fp = open(configfile)

pushurl = None

urlline = None

for line in fp:

# print "Line:", line,

if re.match('^\s*pushurl\s*=\s*(\S*)\s$', line):

print repoloc, "already has a pushurl! Bailing."

return

m = re.match('^(\s*)url\s*=\s*(\S*)\s$', line)

if m:

if pushurl:

print "More than one url = line in %s! Bailing." % repoloc

return

whitespace = m.group(1)

pushurl = m.group(2)

urlline = line

fp.close()

if not pushurl or not urlline:

print "Couldn't find a url = line in", repoloc

return

# Now we have a single url = line, and there was no pushurl = line.

# pushurl is just the original url (presumably the push one).

# Parse it. The two syntaxes I know are:

# url = ssh://git.gnome.org/git/reponame

# url = [git@]github.com:user/reponame.git

print "Found push url:", pushurl

if pushurl.startswith("http"):

print "url is not a push url.", pushurl

return

if pushurl.startswith("ssh://"):

# The only example I have of this is gimp/gnome,

# where ssh://git.gnome.org/git/gimp

# maps to git://git.gnome.org/gimp

# Hope this is standard?

print "Using gnome syntax for", repoloc

parts = pushurl[6:].split('/')

parts.remove('git')

pullurl = 'git://' + '/'.join(parts)

else:

# Hope it's github syntax, [git@]github.com:user/reponame.git

# map to https://github.com/user/reponame.git

if ':' not in pushurl:

print "Can't parse", pushurl

return

host, path = pushurl.split(':')

if '@' in host:

host = host.split('@')[1]

pullurl = 'https://%s/%s' % (host, path)

print "pushurl:", pushurl

print "pullurl:", pullurl

# Supposedly we have all we need now.

configbak = configfile + ".bak"

os.rename(configfile, configbak)

fp = open(configbak)

ofp = open(configfile, "w")

for line in fp:

if line != urlline:

ofp.write(line)

continue

# It is the url line. Preserve the initial whitespace:

ofp.write(whitespace + "# " + line[len(whitespace):])

ofp.write(whitespace + "url = " + pullurl + '\n')

ofp.write(whitespace + "pushurl = " + pushurl + '\n')

ofp.close()

fp.close()

print "Wrote", configfile

# pushurl=$( egrep '^\s*url\s*=' $configfile | sed -e 's/^\s*url\s*=\s*//' )

# This should be something like [email protected]:akkana/hexchat.git

if __name__ == '__main__':

for repo in sys.argv[1:]:

repopull(repo)