From 160ee7bd1bb0741d7b22305de685ada742648552 Mon Sep 17 00:00:00 2001
From: Mat Jones <mat@mjones.network>
Date: Fri, 19 Apr 2024 09:38:21 -0400
Subject: [PATCH 1/3] chore(ci): Auto-add one approval to automated flake.lock
 PRs

---
 .github/workflows/approve-flake-lock-prs.yml    | 16 ++++++++++++++++
 .github/workflows/update-flake-dependencies.yml |  7 ++++++-
 2 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 .github/workflows/approve-flake-lock-prs.yml

diff --git a/.github/workflows/approve-flake-lock-prs.yml b/.github/workflows/approve-flake-lock-prs.yml
new file mode 100644
index 00000000..578c85e0
--- /dev/null
+++ b/.github/workflows/approve-flake-lock-prs.yml
@@ -0,0 +1,16 @@
+# This job applies one approval automatically to the automated `flake.lock` PRs
+# This helps us keep up with the weekly automated PRs, but still requires at least 1
+# human manual approval.
+name: Approve flake.lock PRs (still require 1 human approval)
+permissions:
+  pull-requests: write
+jobs:
+  approve-flake-lock-prs:
+    runs-on: ubuntu-latest
+    if: github.actor == 'github-actions[bot]' && github.event.pull_request.labels.*.name == 'flake.lock automation'
+    steps:
+      - name: Approve flake.lock PRs (still requires 1 human approval)
+        run: gh pr review --approve "$PR_URL"
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+          GH_TOKEN: ${{secrets.GITHUB_TOKEN}}
diff --git a/.github/workflows/update-flake-dependencies.yml b/.github/workflows/update-flake-dependencies.yml
index a19c3bf6..85fad658 100644
--- a/.github/workflows/update-flake-dependencies.yml
+++ b/.github/workflows/update-flake-dependencies.yml
@@ -33,5 +33,10 @@ jobs:
               --field content=@<(base64 -i $FILE_TO_COMMIT) \
               --field branch="$COMMIT_BRANCH" \
               --field sha="$(git rev-parse $COMMIT_BRANCH:$FILE_TO_COMMIT)"
-            gh pr create --title "[automation]: Update Flake dependencies" --body "This is an automated PR to update \`flake.lock\`" --reviewer mrjones2014 --reviewer AndyTitu --base main --head $COMMIT_BRANCH
+            gh pr create --title "[automation]: Update Flake dependencies" \
+              --body "This is an automated PR to update \`flake.lock\`" \
+              --label "flake.lock automation" \
+              --reviewer mrjones2014 \
+              --reviewer AndyTitu \
+              --base main --head $COMMIT_BRANCH
           fi

From d5191376db6d041ca87fd564a0bf59feab8e495f Mon Sep 17 00:00:00 2001
From: Mat Jones <mat@mjones.network>
Date: Fri, 19 Apr 2024 10:51:34 -0400
Subject: [PATCH 2/3] fix: run only if ONLY flake.lock is changed

---
 .github/workflows/approve-flake-lock-prs.yml | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/approve-flake-lock-prs.yml b/.github/workflows/approve-flake-lock-prs.yml
index 578c85e0..b1ba3721 100644
--- a/.github/workflows/approve-flake-lock-prs.yml
+++ b/.github/workflows/approve-flake-lock-prs.yml
@@ -4,13 +4,23 @@
 name: Approve flake.lock PRs (still require 1 human approval)
 permissions:
   pull-requests: write
+on:
+  pull_request_target:
+    paths:
+      - 'flake.lock' # only run if flake.lock has changed
 jobs:
   approve-flake-lock-prs:
     runs-on: ubuntu-latest
     if: github.actor == 'github-actions[bot]' && github.event.pull_request.labels.*.name == 'flake.lock automation'
     steps:
       - name: Approve flake.lock PRs (still requires 1 human approval)
-        run: gh pr review --approve "$PR_URL"
+        run: |
+          # only run if only exactly 1 file is changed;
+          # this combined with the `paths:` filter on the job itself
+          # ensures that the PR changes ONLY flake.lock and no other files
+          if [[ "$(git diff --name-only HEAD..origin/main | wc -l)" = 1 ]]; then
+            gh pr review --approve "$PR_URL"
+          end
         env:
           PR_URL: ${{github.event.pull_request.html_url}}
           GH_TOKEN: ${{secrets.GITHUB_TOKEN}}

From e98eb985fdce1654c01e7d7a58f17cdb014b3119 Mon Sep 17 00:00:00 2001
From: Mat Jones <mat@mjones.network>
Date: Fri, 19 Apr 2024 10:54:00 -0400
Subject: [PATCH 3/3] fix: checkout the repo before trying to analyze git
 status

---
 .github/workflows/approve-flake-lock-prs.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.github/workflows/approve-flake-lock-prs.yml b/.github/workflows/approve-flake-lock-prs.yml
index b1ba3721..6b997c00 100644
--- a/.github/workflows/approve-flake-lock-prs.yml
+++ b/.github/workflows/approve-flake-lock-prs.yml
@@ -13,6 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.actor == 'github-actions[bot]' && github.event.pull_request.labels.*.name == 'flake.lock automation'
     steps:
+      - uses: actions/checkout@v4
       - name: Approve flake.lock PRs (still requires 1 human approval)
         run: |
           # only run if only exactly 1 file is changed;