euscan-ng/pym/euscan/handlers/github.py
2019-12-05 17:46:19 +01:00

60 lines
1.6 KiB
Python

import json
import urllib.request, urllib.error, urllib.parse
import re
import portage
from euscan import helpers, output, mangling
HANDLER_NAME = "github"
CONFIDENCE = 100
PRIORITY = 90
def can_handle(pkg, url=None):
return url and url.startswith('mirror://github/')
def guess_package(cp, url):
match = re.search('^mirror://github/(.*?)/(.*?)/(.*)$', url)
assert(match)
return (match.group(1), match.group(2), match.group(3))
def scan_url(pkg, url, options):
'http://developer.github.com/v3/repos/downloads/'
user, project, filename = guess_package(pkg.cpv, url)
# find out where version is expected to be found
cp, ver, rev = portage.pkgsplit(pkg.cpv)
if ver not in filename:
return
# now create a filename-matching regexp
# XXX: supposedly replace first with (?P<foo>...)
# and remaining ones with (?P=foo)
fnre = re.compile('^%s$' % \
re.escape(filename).replace(re.escape(ver), '(.*?)'))
output.einfo("Using github API for: project=%s user=%s filename=%s" % \
(project, user, filename))
dlreq = urllib.request.urlopen('https://api.github.com/repos/%s/%s/downloads' % \
(user, project))
dls = json.load(dlreq)
ret = []
for dl in dls:
m = fnre.match(dl['name'])
if m:
pv = mangling.mangle_version(m.group(1), options)
if helpers.version_filtered(cp, ver, pv):
continue
url = mangling.mangle_url(dl['html_url'], options)
ret.append((url, pv, HANDLER_NAME, CONFIDENCE))
return ret