persist coverage badge SVG + deduplicate UV setup (fix #42, fix #43)

- Upload badge SVG to Gitea generic package registry for stable URL
- Set UV_PROJECT_ENVIRONMENT=.venv so test reuses lint's installed env
- Remove redundant uv sync/pip install from test and coverage-badge steps

.woodpecker/ci.yml

@@ -11,6 +11,7 @@ steps:
     environment:
       UV_PYTHON_PREFERENCE: only-system
       UV_LINK_MODE: copy
+      UV_PROJECT_ENVIRONMENT: .venv
     commands:
       - uv python pin 3.13.11
       - uv sync --dev
@@ -23,10 +24,8 @@ steps:
     environment:
       UV_PYTHON_PREFERENCE: only-system
       UV_LINK_MODE: copy
+      UV_PROJECT_ENVIRONMENT: .venv
     commands:
-      - uv python pin 3.13.11
-      - uv sync --dev
-      - uv pip install -e .
       - uv run pytest tests/ --cov=src --cov-report=term-missing --cov-fail-under=99 -q 2>&1 | tee pytest.out
       - uv run python dev/scripts/coverage_badge.py < pytest.out > coverage.svg
     depends_on:
@@ -38,15 +37,14 @@ steps:
     environment:
       UV_PYTHON_PREFERENCE: only-system
       UV_LINK_MODE: copy
+      UV_PROJECT_ENVIRONMENT: .venv
       GITEA_TOKEN:
         from_secret: gitea_token
       GITEA_URL:
         from_secret: gitea_url
     commands:
-      - uv python pin 3.13.11
-      - uv sync --dev
-      - uv pip install -e .
       - uv run python dev/scripts/coverage_badge.py --post pytest.out
+      - uv run python dev/scripts/coverage_badge.py --upload coverage.svg
     depends_on:
       - test
 

dev/scripts/coverage_badge.py

@@ -58,9 +58,12 @@ def extract_pct(text: str) -> int:
     return int(m.group(1))
 
 
+def _gitea_env() -> tuple[str, str]:
+    return os.environ["GITEA_TOKEN"], os.environ["GITEA_URL"]
+
+
 def post_status(pct: int) -> None:
-    token = os.environ["GITEA_TOKEN"]
-    url = os.environ["GITEA_URL"]
+    token, url = _gitea_env()
     sha = os.environ["CI_COMMIT_SHA"]
     endpoint = f"{url}/api/v1/repos/homelab/stack/statuses/{sha}"
     body = json.dumps({
@@ -81,12 +84,42 @@ def post_status(pct: int) -> None:
         print(f"Posted coverage status: {pct}% (HTTP {resp.status})")
 
 
+def upload_badge(svg_path: str) -> None:
+    token, url = _gitea_env()
+    endpoint = f"{url}/api/packages/homelab/generic/coverage/latest/badge.svg"
+    data = open(svg_path, "rb").read()
+    # Delete existing package version first (ignore 404)
+    try:
+        req = urllib.request.Request(
+            f"{url}/api/packages/homelab/generic/coverage/latest",
+            headers={"Authorization": f"token {token}"},
+            method="DELETE",
+        )
+        urllib.request.urlopen(req)
+    except urllib.error.HTTPError:
+        pass
+    req = urllib.request.Request(
+        endpoint,
+        data=data,
+        headers={
+            "Authorization": f"token {token}",
+            "Content-Type": "image/svg+xml",
+        },
+        method="PUT",
+    )
+    with urllib.request.urlopen(req) as resp:
+        print(f"Uploaded badge SVG (HTTP {resp.status})")
+
+
 def main() -> None:
     if "--post" in sys.argv:
         path = sys.argv[sys.argv.index("--post") + 1]
         text = open(path).read()
         pct = extract_pct(text)
         post_status(pct)
+    elif "--upload" in sys.argv:
+        svg_path = sys.argv[sys.argv.index("--upload") + 1]
+        upload_badge(svg_path)
     else:
         text = sys.stdin.read()
         pct = extract_pct(text)