process_tags.py

#!/usr/bin/env python

import os
import sys

import re

COMMIT_RE = re.compile("commit ([a-f0-9]{40})")
GEOTAG_RE = re.compile("richo_geotag: ([-0-9.]+,[-0-9.]+)")


def usage():
    sys.stderr.write("Usage: %s <tags_file>\n" % (sys.argv[0]))
    sys.stderr.write("tags_file should be a file of commits and tags")
    os.exit(1)


def main(f):
    fh = open(f, 'r')
    last = ""
    for line in fh:
        line = line.strip()
        if last:
            commit_match = COMMIT_RE.match(last)
            if commit_match:
                geotag_match = GEOTAG_RE.match(line)
                if geotag_match:
                    print("%s %s" % (commit_match.groups(1)[0], geotag_match.groups(1)[0]))
                    last = ""
        else:
            last = line

if __name__ == "__main__":
    if len(sys.argv) == 1:
        usage()
    main(sys.argv[1])