[CI/Build] Add error matching config for mypy (vllm-project#9512)

Author: russellb

.github/workflows/matchers/mypy.json

@@ -0,0 +1,16 @@
+{
+  "problemMatcher": [
+    {
+      "owner": "mypy",
+      "pattern": [
+        {
+          "regexp": "^(.+):(\\d+):\\s(error|warning):\\s(.+)$",
+          "file": 1,
+          "line": 2,
+          "severity": 3,
+          "message": 4
+        }
+      ]
+    }
+  ]
+}

.github/workflows/mypy.yaml

@@ -32,4 +32,5 @@ jobs:
         pip install types-setuptools
     - name: Mypy
       run: |
-        tools/mypy.sh
+        echo "::add-matcher::.github/workflows/matchers/mypy.json"
+        tools/mypy.sh 1

tools/mypy.sh

@@ -2,6 +2,10 @@
 
 CI=${1:-0}
 
+if [ $CI -eq 1 ]; then
+    set -e
+fi
+
 run_mypy() {
     echo "Running mypy on $1"
     if [ $CI -eq 1 ] && [ -z "$1" ]; then