Add Gitea(+ Forgejo) handler

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

src/euscan/handlers/gitea.py

@@ -0,0 +1,70 @@
+# Copyright 2020-2024 src_prepare group
+# Distributed under the terms of the GNU General Public License v2
+
+import json
+import re
+
+import portage
+
+from euscan import helpers, mangling, output
+
+HANDLER_NAME = "gitea"
+CONFIDENCE = 100
+PRIORITY = 90
+
+# Forgejo strives to be compatible with Gitea API
+# https://forgejo.org/2024-02-forking-forward/
+
+_gitea_instances = [
+    "codeberg.org",
+    "git.osgeo.org",
+    "gitea.com",
+    "gitea.ladish.org",
+    "gitea.osmocom.org",
+    "gitea.treehouse.systems",
+]
+
+gitea_patterns = [
+    re.compile(rf"https://(?P<domain>{domain})/(?P<repository>[^/]+/[^/]+)")
+    for domain in _gitea_instances
+]
+
+
+def can_handle(pkg, url=None):
+    return url and any([re.search(pattern, url) for pattern in gitea_patterns])
+
+
+def scan_url(pkg, url, options):
+    "https://docs.gitea.com/api/1.20/#tag/repository/operation/repoListReleases"
+
+    match = [
+        re.search(pattern, url)
+        for pattern in gitea_patterns
+        if re.search(pattern, url) is not None
+    ][0]
+
+    domain = match.group("domain")
+    repository = match.group("repository")
+
+    output.einfo(f"Using Gitea API in {domain}: {repository}")
+
+    request = helpers.urlopen(f"https://{domain}/api/v1/repos/{repository}/releases")
+
+    data = json.load(request)
+
+    versions = [release["tag_name"] for release in data]
+
+    cp, ver, rev = portage.pkgsplit(pkg.cpv)
+
+    ret = []
+    for up_pv in versions:
+        pv = mangling.mangle_version(up_pv, options)
+        if helpers.version_filtered(cp, ver, pv):
+            continue
+        urls = " ".join(
+            mangling.mangle_url(release["tarball_url"], options)
+            for release in data
+            if release["tag_name"] == up_pv
+        )
+        ret.append((urls, pv, HANDLER_NAME, CONFIDENCE))
+    return ret