Mateusz Loskot :: hacking on, working out, living up

Preparing for Subversion to Git migration

23 Sep 2011 | mloskot

GEOS is slowly moving to Git, so I decided to clear the Subversion specific settings, namely the svn:keywords. The procedure is quick and based on the commands I used to perform bulk svn:keywords property update.

First, svn:keywords property is removed:

find . -path '*/.svn' -prune -o -type f -print  | xargs svn propdel -q svn:keywords

Next, line consisting of $Id$ keyword is stripped from every plain text file using a tiny script coded in Python:

    #! /usr/bin/env python
    import fileinput
    import re
    import sys
    
    def strip_line(filename, rx):
        sys.stderr.write(filename + '\n')
        for line in fileinput.input(filename, inplace=1):
            m = re.match(rx, line)
            if m is None:
                sys.stdout.write(line)
            else:
                sys.stderr.write(line)
    
    if len(sys.argv) < 2:
        sys.exit("Missing filename")
    
    pattern = '^.*\$Id.*$'
    rx = re.compile(pattern, re.DOTALL)
    strip_line(sys.argv[1], rx)

The script is executed for every file, excluding the working copy admin area in .svn:

for f in `find . -path '*/.svn' -prune -o -type f -print`; do ~/bin/strip_line_regex.py $f; done;

Voila!

Update: Torvalds answers Does GIT has vc keywords like CVS/Subversion?

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