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# Copyright 1999-2009 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$
import codecs
import re
import portage
from portage import os
from portage import _encodings
from portage import _unicode_encode
def calc_changelog(ebuildpath,current,next):
if ebuildpath == None or not os.path.exists(ebuildpath):
return []
current = '-'.join(portage.catpkgsplit(current)[1:])
if current.endswith('-r0'):
current = current[:-3]
next = '-'.join(portage.catpkgsplit(next)[1:])
if next.endswith('-r0'):
next = next[:-3]
changelogpath = os.path.join(os.path.split(ebuildpath)[0],'ChangeLog')
try:
changelog = codecs.open(_unicode_encode(changelogpath,
encoding=_encodings['fs'], errors='strict'),
mode='r', encoding=_encodings['repo.content'], errors='replace'
).read()
except SystemExit as e:
raise # Needed else can't exit
except:
return []
divisions = _find_changelog_tags(changelog)
#print 'XX from',current,'to',next
#for div,text in divisions: print 'XX',div
# skip entries for all revisions above the one we are about to emerge
for i in range(len(divisions)):
if divisions[i][0]==next:
divisions = divisions[i:]
break
# find out how many entries we are going to display
for i in range(len(divisions)):
if divisions[i][0]==current:
divisions = divisions[:i]
break
else:
# couldnt find the current revision in the list. display nothing
return []
return divisions
def _find_changelog_tags(changelog):
divs = []
release = None
while 1:
match = re.search(r'^\*\ ?([-a-zA-Z0-9_.+]*)(?:\ .*)?\n',changelog,re.M)
if match is None:
if release is not None:
divs.append((release,changelog))
return divs
if release is not None:
divs.append((release,changelog[:match.start()]))
changelog = changelog[match.end():]
release = match.group(1)
if release.endswith('.ebuild'):
release = release[:-7]
if release.endswith('-r0'):
release = release[:-3]
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