From fb0562da2f027d8e4e010a806e9bd021ae04c27b Mon Sep 17 00:00:00 2001
From: Julian Bez <julian@posthog.com>
Date: Wed, 17 Jan 2024 11:09:02 +0000
Subject: [PATCH] feat(types): Add mypy GitHub problem matcher (#19706)

---
 .github/mypy-problem-matcher.json | 18 ++++++++++++++++++
 .github/workflows/ci-backend.yml  |  3 +++
 2 files changed, 21 insertions(+)
 create mode 100644 .github/mypy-problem-matcher.json

diff --git a/.github/mypy-problem-matcher.json b/.github/mypy-problem-matcher.json
new file mode 100644
index 0000000000000..f87b1c492ea4d
--- /dev/null
+++ b/.github/mypy-problem-matcher.json
@@ -0,0 +1,18 @@
+{
+    "problemMatcher": [
+        {
+            "owner": "mypy",
+            "severity": "error",
+            "pattern": [
+                {
+                    "regexp": "^([^:]*):(\\d+):(?:(\\d+):)? (?:error|note): (.*?)(?:  \\[(\\S+)\\])?$",
+                    "file": 1,
+                    "line": 2,
+                    "column": 3,
+                    "message": 4,
+                    "code": 5
+                }
+            ]
+        }
+    ]
+}
diff --git a/.github/workflows/ci-backend.yml b/.github/workflows/ci-backend.yml
index f62f587935372..570364fbe28fd 100644
--- a/.github/workflows/ci-backend.yml
+++ b/.github/workflows/ci-backend.yml
@@ -135,6 +135,9 @@ jobs:
               run: |
                   ruff format --exclude posthog/hogql/grammar --check --diff .
 
+            - name: Add Problem Matcher
+              run: echo "::add-matcher::.github/mypy-problem-matcher.json"
+
             - name: Check static typing
               run: |
                   mypy -p posthog | mypy-baseline filter