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#!/usr/bin/python -u
# vim: set fileencoding=utf-8 :
#
# (C) 2008 Guido Guenther <agx@sigxcpu.org>
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
"""Link Debian changelog entries to the VCS"""
import cgi
import os
import re
import sys
#import cgitb; cgitb.enable(display=0, logdir='/tmp')
import urlgrabber
from lxml import etree
from genshi.template import TemplateLoader
import vcsbrowsers
from htmlchangelog import HTMLChangelog
VERSION="0.0.2"
XMLNS='http://www.w3.org/1999/xhtml'
PTS='http://packages.qa.debian.org'
PKGNAMERE="[a-zA-Z0-9.+\-]+$"
def fetch_changelog(cl_url):
changelog = urlgrabber.urlread(cl_url, timeout=5.0).decode('utf-8')
return changelog
def fetch_pts_page(package):
pts = None
try:
url = "%s/%s" % (PTS, package)
pts = urlgrabber.urlopen(url, timeout=5.0)
except urlgrabber.grabber.URLGrabError, (code, msg):
if code == 14:
raise Exception, "Can't find package '%s' on '%s'" % (package, PTS)
else:
raise
return pts
def parse_pts_xhtml(pts):
cl_url = None
vcs_url = None
vcs = None
tree = etree.parse(pts)
searcher = etree.ETXPath('/{%s}html/{%s}body//{%s}a[@href]' % (XMLNS, XMLNS, XMLNS))
result = searcher(tree)
for r in result:
if r.text == "Changelog":
cl_url = r.attrib['href']
elif r.text == "browse":
vcs_url = r.attrib['href']
parent = r.getparent()
vcs = parent.getchildren()[0].text.lower()
return cl_url, vcs_url, vcs
def get_vcsbrowser(vcs, vcs_url):
if vcs == "git":
return vcsbrowsers.GitWebBrowser(vcs_url)
elif vcs == "Mercurial":
return vcsbrowsers.HgBrowser(vcs_url)
def render_search_page(title, pkg=None, err=None):
loader = TemplateLoader('templates')
tmpl = loader.load('index.html')
print tmpl.generate(title=title, pkg=pkg,
err=err).render('xhtml', doctype='xhtml-strict')
def render_changelog_page(cl):
print cl
def main(argv):
title = "cl2vcs %s" % VERSION
err = ""
print "Content-Type: text/html; charset=utf-8"
print
try:
form = cgi.FieldStorage()
if form.has_key('pkg'):
pkg = form.getfirst('pkg').decode('utf-8').strip()
else:
pkg = None
if pkg:
if not re.match(PKGNAMERE, pkg):
return render_search_page(title=title, err=u"Invalid package name: '%s'" % pkg)
else:
return render_search_page(title=title, err=err)
try:
pts = fetch_pts_page(pkg)
except Exception, exc_err:
err=exc_err
pts = None
if not pts:
return render_search_page(title=title, pkg=pkg, err=err)
cl_url, vcs_url, vcs = parse_pts_xhtml(pts)
if cl_url == None:
return render_search_page(pkg=pkg, err=err)
try:
cl_text = fetch_changelog(cl_url)
except urlgrabber.grabber.URLGrabError, (errcode, errmsg):
return render_search_page(title=title,
err="Cannot fetch '%s': %s" % (cl_url, errmsg))
if vcs and vcs_url:
vcsbrowser = get_vcsbrowser(vcs, vcs_url)
else:
vcsbrowser = None
cl = HTMLChangelog(cl_text, vcsbrowser=vcsbrowser)
if cl:
render_changelog_page(cl)
except Exception, err:
import traceback
traceback.print_exc(file=sys.stderr)
render_search_page(title=title, err="Unknown error")
return 0
if __name__ == "__main__":
sys.exit(main(sys.argv))
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