From c38030cd26bc3f01ffcf5040c9376646a084d0e9 Mon Sep 17 00:00:00 2001
From: Maxwell G <maxwell@gtmx.me>
Date: Wed, 26 Mar 2025 07:25:34 -0500
Subject: [PATCH] ci pip-compile: always create PR when one doesn't exist

Previously, this only would create a PR when the branch was newly
created earlier in the workflow (assuming that branches would be deleted
once the previous dependency update PR was merged), but it was possible
for the branch to already exist but not have a PR open against it.
This uses the Github API to properly check whether a PR already exists.
---
 .github/workflows/reusable-pip-compile.yml | 42 ++++++++++++++--------
 1 file changed, 27 insertions(+), 15 deletions(-)

diff --git a/.github/workflows/reusable-pip-compile.yml b/.github/workflows/reusable-pip-compile.yml
index 877e1c61e98..c4527964ac3 100644
--- a/.github/workflows/reusable-pip-compile.yml
+++ b/.github/workflows/reusable-pip-compile.yml
@@ -94,6 +94,7 @@ jobs:
           pr_title: "[${{ inputs.base-branch }}] ${{ inputs.message }}"
           changed_files: "${{ inputs.changed-files }}"
           labels: "${{ inputs.labels }}"
+          branch_exists: "${{ steps.branch.outputs.branch-exists }}"
         run: |
           set -x
           git diff || :
@@ -107,20 +108,31 @@ jobs:
 
           git commit -m "${message}"
           git push --force origin "${pr_branch}"
-          if [ "${{ steps.branch.outputs.branch-exists }}" = "false" ]
-          then
-            command=(gh pr create
-              --base "${base_branch}"
-              --title "${pr_title}"
-              --body ""
-              --label dependency_update
-            )
-            # Add custom labels to the command.
-            old_ifs="$IFS"
-            IFS=","
-            for label in ${labels}; do
-              command+=("--label" "${label}")
-            done
-            IFS="${old_ifs}"
+
+          if [ "${branch_exists}" = "true" ]; then
+            # https://github.com/cli/cli/discussions/5792#discussioncomment-10410197
+            current_pr="$(gh pr list \
+              --head "${pr_branch}"\
+              --app ansible-documentation-bot \
+              --state open \
+              --json url --jq .[].url \
+            )"
+            if [ -n "${current_pr}" ]; then
+              echo "PR already exists: ${current_pr}"
+              exit
+            fi
           fi
+          command=(gh pr create
+            --base "${base_branch}"
+            --title "${pr_title}"
+            --body ""
+            --label dependency_update
+          )
+          # Add custom labels to the command.
+          old_ifs="$IFS"
+          IFS=","
+          for label in ${labels}; do
+            command+=("--label" "${label}")
+          done
+          IFS="${old_ifs}"
           "${command[@]}"