#!/usr/bin/python
# Copyright 2008 Marcus D. Hanwell <marcus@cryos.org>
# Distributed under the terms of the GNU General Public License v2 or later
import string, re, os
# Execute git log with the desired command line options.
fin = os.popen('git log --summary --stat --no-merges --date=short', 'r')
# Create a ChangeLog file in the current directory.
fout = open('ChangeLog', 'w')
# Set up the loop variables in order to locate the blocks we want
authorFound = False
dateFound = False
messageFound = False
filesFound = False
message = ""
messageNL = False
files = ""
prevAuthorLine = ""
# The main part of the loop
for line in fin:
# The commit line marks the start of a new commit object.
if string.find(line, 'commit') >= 0:
# Start all over again...
authorFound = False
dateFound = False
messageFound = False
messageNL = False
message = ""
filesFound = False
files = ""
continue
# Match the author line and extract the part we want
elif re.match('Author:', line) >=0:
authorList = re.split(': ', line, 1)
author = authorList[1]
author = author[0:len(author)-1]
authorFound = True
# Match the date line
elif re.match('Date:', line) >= 0:
dateList = re.split(': ', line, 1)
date = dateList[1]
date = date[0:len(date)-1]
dateFound = True
# The svn-id lines are ignored
elif re.match(' git-svn-id:', line) >= 0:
continue
# The sign off line is ignored too
elif re.search('Signed-off-by', line) >= 0:
continue
# Extract the actual commit message for this commit
elif authorFound & dateFound & messageFound == False:
# Find the commit message if we can
if len(line) == 1:
if messageNL:
messageFound = True
else:
messageNL = True
elif len(line) == 4:
messageFound = True
else:
if len(message) == 0:
message = message + line.strip()
else:
message = message + " " + line.strip()
# If this line is hit all of the files have been stored for this commit
elif re.search('files changed', line) >= 0:
filesFound = True
continue
# Collect the files for this commit. FIXME: Still need to add +/- to files
elif authorFound & dateFound & messageFound:
fileList = re.split(' \| ', line, 2)
if len(fileList) > 1:
if len(files) > 0:
files = files + ", " + fileList[0].strip()
else:
files = fileList[0].strip()
# All of the parts of the commit have been found - write out the entry
if authorFound & dateFound & messageFound & filesFound:
# First the author line, only outputted if it is the first for that
# author on this day
authorLine = date + " " + author
if len(prevAuthorLine) == 0:
fout.write(authorLine + "\n")
elif authorLine == prevAuthorLine:
pass
else:
fout.write("\n" + authorLine + "\n")
# Assemble the actual commit message line(s) and limit the line length
# to 80 characters.
commitLine = "* " + files + ": " + message
i = 0
commit = ""
while i < len(commitLine):
if len(commitLine) < i + 78:
commit = commit + "\n " + commitLine[i:len(commitLine)]
break
index = commitLine.rfind(' ', i, i+78)
if index > i:
commit = commit + "\n " + commitLine[i:index]
i = index+1
else:
commit = commit + "\n " + commitLine[i:78]
i = i+79
# Write out the commit line
fout.write(commit + "\n")
#Now reset all the variables ready for a new commit block.
authorFound = False
dateFound = False
messageFound = False
messageNL = False
message = ""
filesFound = False
files = ""
prevAuthorLine = authorLine
# Close the input and output lines now that we are finished.
fin.close()
fout.close()
