CI: cancel workflow runs of outdated commits and skip for same content

.github/workflows/ci.yml

@@ -16,7 +16,24 @@ concurrency:
 ## `rust-toolchain` is always used and the only source of truth.
 
 jobs:
+  skip_check:
+    runs-on: ubuntu-latest
+    outputs:
+      should_skip: ${{ steps.skip_check.outputs.should_skip }}
+    steps:
+      - id: skip_check
+        uses: fkirc/skip-duplicate-actions@v5
+        with:
+          cancel_others: 'true'
+          concurrent_skipping: 'same_content_newer'
+          paths_ignore: '["**/README.md"]'
+
   test:
+    needs: [skip_check]
+    if: |
+      github.event.pull_request.draft == false &&
+      (github.event.action == 'ready_for_review' || needs.skip_check.outputs.should_skip != 'true')
+
     name: Test
     runs-on: ["${{github.run_id}}", self-hosted, c5.9xlarge]
 
@@ -61,7 +78,10 @@ jobs:
           args: --verbose --release --all --all-features --exclude integration-tests --exclude circuit-benchmarks serial_ -- --ignored --test-threads 1
 
   build:
-    if: github.event.pull_request.draft == false
+    needs: [skip_check]
+    if: |
+      github.event.pull_request.draft == false &&
+      (github.event.action == 'ready_for_review' || needs.skip_check.outputs.should_skip != 'true')
 
     name: Build target ${{ matrix.target }}
     runs-on: ubuntu-latest
@@ -111,7 +131,10 @@ jobs:
           args: --verbose --release --all-features -p circuit-benchmarks --no-run
 
   bitrot:
-    if: github.event.pull_request.draft == false
+    needs: [skip_check]
+    if: |
+      github.event.pull_request.draft == false &&
+      (github.event.action == 'ready_for_review' || needs.skip_check.outputs.should_skip != 'true')
 
     name: Bitrot check
     runs-on: ubuntu-latest
@@ -149,7 +172,10 @@ jobs:
           args: --benches --examples --all-features
 
   doc-links:
-    if: github.event.pull_request.draft == false
+    needs: [skip_check]
+    if: |
+      github.event.pull_request.draft == false &&
+      (github.event.action == 'ready_for_review' || needs.skip_check.outputs.should_skip != 'true')
 
     name: Intra-doc links
     runs-on: ubuntu-latest
@@ -193,7 +219,10 @@ jobs:
           args: --no-deps --all --document-private-items
 
   fmt:
-    if: github.event.pull_request.draft == false
+    needs: [skip_check]
+    if: |
+      github.event.pull_request.draft == false &&
+      (github.event.action == 'ready_for_review' || needs.skip_check.outputs.should_skip != 'true')
 
     name: Rustfmt
     timeout-minutes: 30

.github/workflows/lints.yml

@@ -10,8 +10,23 @@ on:
       - main
 
 jobs:
+  skip_check:
+    runs-on: ubuntu-latest
+    outputs:
+      should_skip: ${{ steps.skip_check.outputs.should_skip }}
+    steps:
+      - id: skip_check
+        uses: fkirc/skip-duplicate-actions@v5
+        with:
+          cancel_others: 'true'
+          concurrent_skipping: 'same_content_newer'
+          paths_ignore: '["**/README.md"]'
+
   clippy:
-    if: github.event.pull_request.draft == false
+    needs: [skip_check]
+    if: |
+      github.event.pull_request.draft == false &&
+      (github.event.action == 'ready_for_review' || needs.skip_check.outputs.should_skip != 'true')
 
     name: Clippy
     timeout-minutes: 30