handlers/github: remove

* Mirror removed and api has very strict ratelimits making impractical
  to use.
* https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=f119d00dab0c3bd087faab36f1a44734772a9d75

Signed-off-by: Alfred Wingate <parona@protonmail.com>

src/euscan/handlers/github.py

@@ -1,66 +0,0 @@
-# Copyright 2011 Corentin Chary <corentin.chary@gmail.com>
-# Copyright 2020-2023 src_prepare group
-# Distributed under the terms of the GNU General Public License v2
-
-import json
-import re
-import urllib.error
-import urllib.parse
-import urllib.request
-
-import portage
-
-from euscan import helpers, mangling, output
-
-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(
-        f"Using github API for: project={project} user={user} filename={filename}"
-    )
-
-    dlreq = urllib.request.urlopen(
-        f"https://api.github.com/repos/{user}/{project}/downloads"
-    )
-    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