Merge 9cb5830 into 2b024aa

Author: trexfeathers

.github/workflows/benchmarks_run.yml

@@ -16,15 +16,39 @@ on:
         required: false
         type: string
   pull_request:
-    types: [labeled]
+    # Add the `labeled` type to the default list.
+    types: [labeled, opened, synchronize, reopened]
 
 jobs:
+  pre-checks:
+    runs-on: ubuntu-latest
+    if: github.repository == 'SciTools/iris'
+    outputs:
+      overnight: ${{ steps.overnight.outputs.overnight }}
+      branch: ${{ steps.branch.outputs.branch }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 2
+      - uses: marceloprado/has-changed-path@df1b7a3161b8fb9fd8c90403c66a9e66dfde50cb
+        id: locks-changed
+        with:
+          paths: requirements/locks/*.lock
+      - id: overnight
+        if: github.event_name != 'pull_request'
+        run: echo "overnight=true" >> "$GITHUB_OUTPUT"
+      - id: branch
+        if: >
+          steps.locks-changed.outputs.changed == 'true'
+          ||
+          github.event.label.name == 'benchmark_this'
+        run: echo "branch=true" >> "$GITHUB_OUTPUT"
+        
+  
   benchmark:
-    if: >
-      github.repository == 'SciTools/iris' && 
-      (github.event_name != 'pull_request' || 
-      github.event.label.name == 'benchmark_this')
     runs-on: ubuntu-latest
+    needs: pre-checks
+    if: needs.pre-checks.outputs.overnight == 'true' || needs.pre-checks.outputs.branch == 'true'
 
     env:
       IRIS_TEST_DATA_LOC_PATH: benchmarks
@@ -76,7 +100,7 @@ jobs:
           echo "OVERRIDE_TEST_DATA_REPOSITORY=${GITHUB_WORKSPACE}/${IRIS_TEST_DATA_PATH}/test_data" >> $GITHUB_ENV
 
       - name: Benchmark this pull request
-        if: ${{ github.event.label.name == 'benchmark_this' }}
+        if: needs.pre-checks.outputs.branch == 'true'
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           PR_NUMBER: ${{ github.event.number }}
@@ -85,7 +109,7 @@ jobs:
 
       - name: Run overnight benchmarks
         id: overnight
-        if: ${{ github.event_name != 'pull_request' }}
+        if: needs.pre-checks.outputs.overnight == 'true'
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |