Initial commit: GitHub Release Monitor CLI tool

CLI tool that tracks GitHub releases or tags from user-defined repositories
and exposes them as a subscribable RSS 2.0 feed.

Features:
- Track releases or tags per repository
- SQLite storage with automatic deduplication
- RSS 2.0 feed with markdown-stripped release notes
- Built-in HTTP server for local feed access
- Rate-limit-aware GitHub API client
- 64 passing tests

tests/test_server.py

@@ -0,0 +1,90 @@
+"""Tests for the HTTP server."""
+
+import sqlite3
+import threading
+import tempfile
+
+import httpx
+import pytest
+
+from src.db import _create_tables, add_repo, upsert_entry
+from src.server import create_handler
+from http.server import HTTPServer
+
+
+@pytest.fixture
+def db_path(tmp_path):
+    """Create a temporary database with sample data."""
+    path = str(tmp_path / "test.db")
+    conn = __import__("sqlite3").connect(path)
+    _create_tables(conn)
+    repo_id = add_repo(conn, "owner/repo")
+    upsert_entry(conn, repo_id, "release", "v1.0.0", "Release v1.0.0",
+                 "# Changelog\n\n- New feature",
+                 "2025-01-15T10:30:00Z",
+                 "https://github.com/owner/repo/releases/tag/v1.0.0")
+    conn.close()
+    return path
+
+
+@pytest.fixture
+def server(db_path):
+    """Start a test HTTP server in a background thread."""
+    handler = create_handler(db_path)
+    server = HTTPServer(("127.0.0.1", 0), handler)
+    port = server.server_address[1]
+    thread = threading.Thread(target=server.serve_forever, daemon=True)
+    thread.start()
+    yield f"http://127.0.0.1:{port}"
+    server.shutdown()
+
+
+class TestFeedEndpoint:
+    def test_feed_returns_200(self, server):
+        resp = httpx.get(f"{server}/feed.xml")
+        assert resp.status_code == 200
+
+    def test_feed_content_type(self, server):
+        resp = httpx.get(f"{server}/feed.xml")
+        assert "application/rss+xml" in resp.headers["content-type"]
+
+    def test_feed_contains_entry(self, server):
+        resp = httpx.get(f"{server}/feed.xml")
+        assert "owner/repo" in resp.text
+        assert "v1.0.0" in resp.text
+
+    def test_feed_is_valid_xml(self, server):
+        import xml.etree.ElementTree as ET
+        resp = httpx.get(f"{server}/feed.xml")
+        root = ET.fromstring(resp.text)
+        assert root.tag == "rss"
+
+
+class TestIndexEndpoint:
+    def test_index_returns_200(self, server):
+        resp = httpx.get(server + "/")
+        assert resp.status_code == 200
+
+    def test_index_content_type(self, server):
+        resp = httpx.get(server + "/")
+        assert "text/html" in resp.headers["content-type"]
+
+    def test_index_links_to_feed(self, server):
+        resp = httpx.get(server + "/")
+        assert "/feed.xml" in resp.text
+
+
+class TestHealthEndpoint:
+    def test_health_returns_200(self, server):
+        resp = httpx.get(f"{server}/health")
+        assert resp.status_code == 200
+
+    def test_health_body(self, server):
+        resp = httpx.get(f"{server}/health")
+        assert resp.text == "OK"
+
+
+class TestNotFound:
+    def test_unknown_path(self, server):
+        resp = httpx.get(f"{server}/unknown")
+        assert resp.status_code == 404