From a7bdbdfb22cc444813b3b1096e4ed4cf33d4b3c3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20M=C3=BCller?=
 <323649642+oc-tmueller@users.noreply.github.com>
Date: Mon, 26 Oct 2026 14:33:21 +0100
Subject: [PATCH 1/2] ci: add zizmor workflow audit
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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Runs zizmor over this repository's workflows on every pull request, on
pushes to the default branch and weekly, through owncloud/reusable-
workflows' zizmor.yml. Any finding fails the check.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Thomas Müller <323649642+oc-tmueller@users.noreply.github.com>
---
 .github/workflows/zizmor.yml | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 .github/workflows/zizmor.yml

diff --git a/.github/workflows/zizmor.yml b/.github/workflows/zizmor.yml
new file mode 100644
index 0000000..ae9fff6
--- /dev/null
+++ b/.github/workflows/zizmor.yml
@@ -0,0 +1,30 @@
+name: Zizmor
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
+  schedule:
+    # Weekly: online audits (known-vulnerable actions, impostor commits) can
+    # start failing without a code change.
+    - cron: '0 4 * * 1'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+# Grouped per event, so a push to the default branch can never cancel or
+# displace the weekly run; only pull request runs cancel superseded ones.
+concurrency:
+  group: zizmor-${{ github.event_name }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
+jobs:
+  zizmor:
+    name: Zizmor
+    uses: owncloud/reusable-workflows/.github/workflows/zizmor.yml@main

From 01516cd4c02f649dcbf6495a9eacf1d97ffb9f8b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20M=C3=BCller?=
 <323649642+oc-tmueller@users.noreply.github.com>
Date: Mon, 26 Oct 2026 14:47:30 +0100
Subject: [PATCH 2/2] fix(ci): say what the zizmor concurrency group guarantees
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The caller comment claimed only pull request runs cancel superseded
ones. GitHub keeps one pending run per group, so for other events a
queued run is still replaced by a newer one; the per-event grouping
only keeps a push from cancelling or displacing the weekly run.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Thomas Müller <323649642+oc-tmueller@users.noreply.github.com>
---
 .github/workflows/zizmor.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/zizmor.yml b/.github/workflows/zizmor.yml
index ae9fff6..b9cb1a9 100644
--- a/.github/workflows/zizmor.yml
+++ b/.github/workflows/zizmor.yml
@@ -19,7 +19,8 @@ permissions:
   contents: read
 
 # Grouped per event, so a push to the default branch can never cancel or
-# displace the weekly run; only pull request runs cancel superseded ones.
+# displace the weekly run. Running pull request runs are cancelled by newer
+# ones; for other events GitHub still replaces a queued run with a newer one.
 concurrency:
   group: zizmor-${{ github.event_name }}-${{ github.ref }}
   cancel-in-progress: ${{ github.event_name == 'pull_request' }}