changelog.py

#! /usr/bin/env python
import os
import re
import git

categories = [
    'usertools', 	# bin, usr.bin
    'kernel',		# sys
    'systemtool',	# sbin, usr.sbin, libexec
    'contrib',		# contrib 
    'crypto',		# crypto
    'doc',		# doc
    'etc',		# etc, share
    'games',		# games
    'gnu',		# gnu
    'lib',		# lib
    'nrelease',		# nrelease
    'tools'		# test, tools
]

changelog = dict()

previous = 'origin/DragonFly_RELEASE_4_6'
current = 'origin/DragonFly_RELEASE_4_8'

#
# Set a commit in a specific category and add it to the
# changelog dictionary
#
def parse_commit(commit):
    global categories

    catg = dict.fromkeys(categories, 0)
    topcat = dict()

    assert commit.message != ''

    for files, changes in commit.stats.files.iteritems():
        if files.startswith('bin/') or files.startswith('usr.bin/'):
            catg['usertools'] += 1
        elif files.startswith('sys/'):
            catg['kernel'] += 1
        elif files.startswith('sbin/') or files.startswith('usr.sbin/'):
            catg['systemtool'] += 1
        elif files.startswith('contrib/'):
            catg['contrib'] += 1
        elif files.startswith('crypto/'):
            catg['crypto'] += 1
        elif files.startswith('doc/'):
            catg['doc'] += 1
        elif files.startswith('etc/') or files.startswith('share/') and 'man' not in files:
            catg['etc'] += 1
        elif files.startswith('games/'):
            catg['games'] += 1
        elif files.startswith('gnu/'):
            catg['gnu'] += 1
        elif files.startswith('lib/'):
            catg['lib'] += 1
        elif files.startswith('nrelease/'):
            catg['nrelease'] += 1
        elif files.startswith('test/') or files.startswith('tools/'):
            catg['tools'] += 1

    for cat, occur in catg.iteritems():
        if not topcat:
            topcat = { cat: occur }
        else:
            key = topcat.iteritems().next()[0]
            if topcat[key] < catg[cat]:
                del topcat[key]
                topcat.update({ cat: occur })

    key = topcat.iteritems().next()[0]
    if not key in changelog:
        changelog[key] = dict()
    changelog[key].update({ commit.hexsha: commit.message.splitlines()[0] })
            
# --------------------------
repo = git.Repo('/home/antonioh/s/dragonfly')

for commit in repo.iter_commits('%s..%s' %(previous, current)):
    parse_commit(commit)

for category, msg in sorted(changelog.iteritems()):
    print 'Category:', category
    for commitid, cmsg in changelog[category].iteritems():
        print '\t ', commitid, cmsg