From 7584af4e44913f714fa09f00db4b3a05df5820a4 Mon Sep 17 00:00:00 2001
From: David Perl <david.perl@psi.ch>
Date: Wed, 14 May 2025 14:47:00 +0200
Subject: [PATCH] ci: don't duplicate push & PR

---
 .github/workflows/check_pr.yml | 27 +++++++++++++++++++++++++++
 .github/workflows/ci.yml       | 11 +++++++++++
 2 files changed, 38 insertions(+)
 create mode 100644 .github/workflows/check_pr.yml

diff --git a/.github/workflows/check_pr.yml b/.github/workflows/check_pr.yml
new file mode 100644
index 00000000..3e644cf0
--- /dev/null
+++ b/.github/workflows/check_pr.yml
@@ -0,0 +1,27 @@
+on:
+  workflow_call:
+    outputs:
+      branch-pr:
+        description: The PR number if the branch is in one
+        value: ${{ jobs.pr.outputs.branch-pr }}
+
+jobs:
+  pr:
+    runs-on: "ubuntu-latest"
+    outputs:
+      branch-pr: ${{ steps.script.outputs.result }}
+    steps:
+      - uses: actions/github-script@v7
+        id: script
+        if: github.event_name == 'push'
+        with:
+          script: |
+            const prs = await github.rest.pulls.list({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              head: context.repo.owner + ':${{ github.ref_name }}'
+            })
+            if (prs.data.length) {
+              console.log(`::notice ::Skipping CI on branch push as it is already run in PR #${prs.data[0]["number"]}`)
+              return prs.data[0]["number"]
+            }
\ No newline at end of file
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 700513b6..e8068401 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,16 +5,27 @@ permissions:
   pull-requests: write
 
 jobs:
+  check_pr_status:
+    uses: ./.github/workflows/check_pr.yml
+
   formatter:
+    needs: check_pr_status
+    if: needs.check_pr_status.outputs.branch-pr == ''
     uses: ./.github/workflows/formatter.yml
 
   unit-test:
+    needs: check_pr_status
+    if: needs.check_pr_status.outputs.branch-pr == ''
     uses: ./.github/workflows/pytest.yml
     secrets:
       CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 
   unit-test-matrix:
+    needs: check_pr_status
+    if: needs.check_pr_status.outputs.branch-pr == ''
     uses: ./.github/workflows/pytest-matrix.yml
 
   end2end-test:
+    needs: check_pr_status
+    if: needs.check_pr_status.outputs.branch-pr == ''
     uses: ./.github/workflows/end2end-conda.yml
\ No newline at end of file