get the change history from a repository and write it as csv to disk

svn_change_history.py

# download and install http://pysvn.tigris.org
import pysvn
import csv
from datetime import datetime

svn = pysvn.Client()

#DATEFORMAT = "%Y-%m-%d %H:%M:%S"
DATEFORMAT = "%Y-%m-%d"

def create_change_entry(log_item):
    """ revision number based"""
    date = datetime.fromtimestamp(log_item["date"])
    return dict(revision=log_item["revision"].number, 
               date=date.strftime(dateformat), 
               message=log_item["message"], 
               author=log_item["author"])

def write_csv( filename, changes, fields=None, delimiter="\t"):
    with open( filename, 'w') as outfile:
        if fields:
            # only use the fields specified and don't throw an exception on extra fields
            writer = csv.DictWriter(outfile, fields, delimiter=delimiter, extrasaction='ignore')
        else:
            writer = csv.DictWriter(outfile, delimiter=delimiter)
        writer.writeheader()
        writer.writerows(changes)


if __name__ == "__main__":
    #TODO: Add command line parsing
    # parameters: dateformat, ouput_file, url
    # optionally use the pipe as output
    output_file = "<some file name>"
    url = "<some subversion repository>"

    log_items = svn.log(url)
    changes = map( create_change_entry, log_items)
    write_csv( output_file, changes, fields=["revision", "date", "message", "author"])