From ef55b3a6b563701c94d999507fa4405e3847c728 Mon Sep 17 00:00:00 2001
From: Toni Bergholm <toni.bergholm@iki.fi>
Date: Fri, 22 May 2026 16:41:35 +0300
Subject: [PATCH 1/3] ci: add explicit CodeQL workflow to replace Default setup

GitHub's Default setup couldn't find refs/heads/main to diff against,
producing a spurious "1 configuration not found" warning on every PR.
A file-tracked workflow gives CodeQL a stable base to compare from.

Analyzes rust and python on push/PR and weekly; category tags match
what the Default setup was reporting (/language:rust, /language:python).
---
 .github/workflows/codeql.yml | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 .github/workflows/codeql.yml

diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
new file mode 100644
index 0000000..74b56b6
--- /dev/null
+++ b/.github/workflows/codeql.yml
@@ -0,0 +1,33 @@
+name: codeql
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+  schedule:
+    - cron: "30 7 * * 1"
+
+jobs:
+  analyze:
+    name: analyze (${{ matrix.language }})
+    runs-on: ubuntu-latest
+    permissions:
+      security-events: write
+      actions: read
+      contents: read
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [rust, python]
+    steps:
+      - uses: actions/checkout@v4
+      - name: initialize codeql
+        uses: github/codeql-action/init@v3
+        with:
+          languages: ${{ matrix.language }}
+      - name: autobuild
+        uses: github/codeql-action/autobuild@v3
+      - name: perform analysis
+        uses: github/codeql-action/analyze@v3
+        with:
+          category: /language:${{ matrix.language }}

From 7d4f97aa037037b5795aacebeea482c48f8631b4 Mon Sep 17 00:00:00 2001
From: Toni Bergholm <toni.bergholm@gmail.com>
Date: Fri, 22 May 2026 16:45:11 +0300
Subject: [PATCH 2/3] Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
---
 .github/workflows/codeql.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 74b56b6..c5022b6 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -9,6 +9,7 @@ on:
 
 jobs:
   analyze:
+    if: ${{ github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository }}
     name: analyze (${{ matrix.language }})
     runs-on: ubuntu-latest
     permissions:

From f5e22e4f3f1505983ee63911d58c64fb1ee8573c Mon Sep 17 00:00:00 2001
From: Toni Bergholm <toni.bergholm@gmail.com>
Date: Fri, 22 May 2026 16:45:20 +0300
Subject: [PATCH 3/3] Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
---
 .github/workflows/codeql.yml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index c5022b6..b14e70e 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -22,6 +22,12 @@ jobs:
         language: [rust, python]
     steps:
       - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@1.95.0
+        if: ${{ matrix.language == 'rust' }}
+      - uses: actions/setup-python@v5
+        if: ${{ matrix.language == 'python' }}
+        with:
+          python-version: "3.12"
       - name: initialize codeql
         uses: github/codeql-action/init@v3
         with: