Add custom python problem matcher for pylint and yapf

.github/python_matcher.json

+{
+    "problemMatcher": [
+        {
+            "owner": "yapf-diff",
+            "pattern": [
+                {
+                    "regexp": "^[+-]{3}\\s*([^\\s]*)\\s*\\((original|reformatted)\\)$",
+                    "file": 1
+                },
+                {
+                    "regexp": "^@@\\s*-(\\d+),(\\d+)\\s*\\+(\\d+),(\\d+)\\s*@@$",
+                    "line": 1,
+                    "column": 2
+                },
+                {
+                    "regexp": "^(\\s|\\+[^+]|\\-[^-]).*$",
+                    "loop": true,
+                    "message": 1
+                }
+            ]
+        },
+        {
+            "owner": "pylint",
+            "pattern": [
+                {
+                    "regexp": "^PYLINT:\\(.*)/.*$",
+                    "fromPath": 1
+                },
+                {
+                    "regexp": "^\\*{13}\\s*Module\\s+(.*)$",
+                    "file": 1
+                },
+                {
+                    "regexp": "^([CEFIRW]\\d{4}):\\s*(\\d+)\\s*:\\s*(.*)$",
+                    "code": 1,
+                    "line": 2,
+                    "message": 3
+                },
+                {
+                    "regexp": "^([^CEFIRW*]*)$",
+                    "message": 1,
+                    "loop": true
+                }
+            ]
+        }
+    ]
+}

.github/workflows/python.yml

@@ -26,7 +26,10 @@ jobs:
       - name: Test code with pylint
         run: |
           pip install pylint
-          pylint --rcfile=.pylintrc --score=n `find . ! -path "./third_party/*" -type f -name '*.py'`
+          ./setup.sh
+          echo ::add-matcher::./.github/python_matcher.json
+          find . -type f -name '*.py' -exec echo PYLINT:\{\} \; -exec pylint --rcfile=.pylintrc --score=n \{\} \;
+      #find . ! -path "./third_party/*" -type f -name '*.py' -exec echo PYLINT:\{\} \; -exec pylint --rcfile=.pylintrc --score=n \{\} \;
 
   yapf:
     runs-on: ubuntu-18.04
@@ -39,6 +42,9 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip setuptools wheel
-          pip install yapf
+          pip install yapf tockloader
       - name: Test code formatting with yapf
-        run: yapf --style=chromium --recursive --exclude third_party --diff .
+        run: |
+        ./setup.sh
+        echo ::add-matcher::./.github/python_matcher.json
+        yapf --style=chromium --recursive --exclude third_party --diff .