git-reader: Add HEAD support on attachments endpoints (#1078)

Author: leplatrem

git-reader/app.py

@@ -663,7 +663,7 @@ def cert_chain(
         raise HTTPException(status_code=404, detail=f"{pem} not found")
 
 
-@app.get(f"/{API_PREFIX}attachments/{{path:path}}")
+@app.api_route(f"/{API_PREFIX}attachments/{{path:path}}", methods=["GET", "HEAD"])
 def attachments(
     request: Request,
     path: str,

git-reader/tests/test_api.py

@@ -458,6 +458,11 @@ def test_attachment_real_file(api_client):
     assert len(resp.content) == 1000
 
 
+def test_attachment_supports_head(api_client):
+    resp = api_client.head("/v2/attachments/main-workspace/regions/world.geojson")
+    assert resp.status_code == 200
+
+
 def test_attachment_mimetype(api_client):
     resp = api_client.get("/v2/attachments/main-workspace/regions/world.geojson")
     assert resp.status_code == 200