import re import portage import json import urllib.request, urllib.error, urllib.parse from euscan import helpers, output, mangling HANDLER_NAME = "rubygems" CONFIDENCE = 100 PRIORITY = 90 def can_handle(pkg, url=None): return url and url.startswith('mirror://rubygems/') def guess_gem(cpv, url): match = re.search('mirror://rubygems/(.*).gem', url) if match: cpv = 'fake/%s' % match.group(1) ret = portage.pkgsplit(cpv) if not ret: return None cp, ver, rev = ret cat, pkg = cp.split("/") return pkg def scan_url(pkg, url, options): 'http://guides.rubygems.org/rubygems-org-api/#gemversion' gem = guess_gem(pkg.cpv, url) if not gem: output.eerror("Can't guess gem name using %s and %s" % \ (pkg.cpv, url)) return [] output.einfo("Using RubyGem API: %s" % gem) return scan_pkg(pkg, {'data': gem}) def scan_pkg(pkg, options): gem = options['data'] url = 'http://rubygems.org/api/v1/versions/%s.json' % gem try: fp = helpers.urlopen(url) except urllib.error.URLError: return [] except IOError: return [] if not fp: return [] data = fp.read() versions = json.loads(data) cp, ver, rev = portage.pkgsplit(pkg.cpv) ret = [] for version in versions: up_pv = version['number'] pv = mangling.mangle_version(up_pv, options) if helpers.version_filtered(cp, ver, pv): continue url = 'http://rubygems.org/gems/%s-%s.gem' % (gem, up_pv) url = mangling.mangle_url(url, options) ret.append((url, pv, HANDLER_NAME, CONFIDENCE)) return ret