From 720282dc86e6854f7f21b2e1bdc4a2826436aa26 Mon Sep 17 00:00:00 2001
From: mhucka <mhucka@google.com>
Date: Thu, 26 Mar 2026 22:26:25 +0000
Subject: [PATCH 1/3] Add problem matcher for Yapf

Add problem matcher for yapf, used in CI.
---
 .github/problem-matchers/README.md | 10 ++++++++--
 .github/problem-matchers/yapf.json | 22 ++++++++++++++++++++++
 2 files changed, 30 insertions(+), 2 deletions(-)
 create mode 100644 .github/problem-matchers/yapf.json

diff --git a/.github/problem-matchers/README.md b/.github/problem-matchers/README.md
index 60ede5cbb..7a68ff0d6 100644
--- a/.github/problem-matchers/README.md
+++ b/.github/problem-matchers/README.md
@@ -6,5 +6,11 @@ This directory contains Problem Matchers used by the GitHub Actions workflows in
 
 The following problem matcher JSON files found in this directory were copied from the [Home Assistant](https://github.com/home-assistant/core) project on GitHub. The Home Assistant project is licensed under the Apache 2.0 open-source license. The version of the files at the time they were copied was 2025.1.2.
 
-- [`pylint.json`](https://github.com/home-assistant/core/blob/dev/.github/workflows/matchers/pylint.json)
-- [`yamllint.json`](https://github.com/home-assistant/core/blob/dev/.github/workflows/matchers/yamllint.json)
+*   [`pylint.json`](https://github.com/home-assistant/core/blob/dev/.github/workflows/matchers/pylint.json)
+*   [`yamllint.json`](https://github.com/home-assistant/core/blob/dev/.github/workflows/matchers/yamllint.json)
+
+The following problem matcher for yapf came from the [Google
+SCAAML](https://github.com/google/scaaml) repository as it appeared on 2025-12-08. The last commit
+was by user jmichelp on 2022-07-03. The file is licensed under the Apache 2.0 license.
+
+*   [`yapf.json`](https://github.com/google/scaaml/blob/6d9c3a42c527212ef77f2877419dd8f6e77eb442/.github/python_matcher.json)
diff --git a/.github/problem-matchers/yapf.json b/.github/problem-matchers/yapf.json
new file mode 100644
index 000000000..5c72ce5bc
--- /dev/null
+++ b/.github/problem-matchers/yapf.json
@@ -0,0 +1,22 @@
+{
+  "problemMatcher": [
+    {
+      "owner": "yapf-diff",
+      "pattern": [
+        {
+          "regexp": "^---\\s*([^\\s]*)\\s*\\(original\\)$",
+          "file": 1
+        },
+        {
+          "regexp": "^\\+\\+\\+\\s*([^\\s]*)\\s*\\((.*)\\)$",
+          "message": 2
+        },
+        {
+          "regexp": "^@@\\s*-(\\d+),(\\d+)\\s*\\+(\\d+),(\\d+)\\s*@@$",
+          "line": 1
+        }
+      ]
+    },
+  }
+  ]
+}

From 02d78afd557fefbdf57afd38a9e1f18234d40317 Mon Sep 17 00:00:00 2001
From: mhucka <mhucka@google.com>
Date: Thu, 26 Mar 2026 22:27:27 +0000
Subject: [PATCH 2/3] Set up to use problem matcher when running Yapf

---
 .github/workflows/ci-file-checks.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/workflows/ci-file-checks.yaml b/.github/workflows/ci-file-checks.yaml
index 166af5c90..8febc24c7 100644
--- a/.github/workflows/ci-file-checks.yaml
+++ b/.github/workflows/ci-file-checks.yaml
@@ -333,6 +333,9 @@ jobs:
           path: ${{needs.Setup.outputs.cache_paths}}
           fail-on-cache-miss: true
 
+      - name: Set up yapf output problem matcher
+        run: echo '::add-matcher::.github/problem-matchers/yapf.json'
+
       - name: Run Yapf on the Python changed files
         run: |
           set +e

From 3213d647378e5333cafb1b3484bb8dcb643bcf4e Mon Sep 17 00:00:00 2001
From: mhucka <mhucka@google.com>
Date: Thu, 26 Mar 2026 22:29:42 +0000
Subject: [PATCH 3/3] Fix syntax error

---
 .github/problem-matchers/yapf.json | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/.github/problem-matchers/yapf.json b/.github/problem-matchers/yapf.json
index 5c72ce5bc..0e2d58507 100644
--- a/.github/problem-matchers/yapf.json
+++ b/.github/problem-matchers/yapf.json
@@ -16,7 +16,6 @@
           "line": 1
         }
       ]
-    },
-  }
+    }
   ]
 }