Merge pull request #3714 from jackwilsdon/problem-matcher

Add flake8 problem matcher

.github/flake8-problem-matcher.json

@@ -0,0 +1,16 @@
+{
+    "problemMatcher": [
+        {
+            "owner": "flake8",
+            "pattern": [
+                {
+                    "regexp": "^(.*?):(\\d+):(\\d+): (.*)$",
+                    "file": 1,
+                    "line": 2,
+                    "column": 3,
+                    "message": 4
+                }
+            ]
+        }
+    ]
+}

.github/workflows/ci.yaml

@@ -65,9 +65,6 @@ jobs:
   lint:
     runs-on: ubuntu-latest
 
-    env:
-      PY_COLORS: 1
-
     steps:
       - uses: actions/checkout@v2
 
@@ -81,5 +78,8 @@ jobs:
           python -m pip install --upgrade pip
           python -m pip install tox sphinx
 
+      - name: Add problem matcher
+        run: echo "::add-matcher::.github/flake8-problem-matcher.json"
+
       - name: Lint with flake8
         run: tox -e py-lint