Speed up CI by decoupling test runs from full build completion

.github/workflows/ci.yaml

@@ -174,7 +174,119 @@ jobs:
       - name: Test p2p crate
         run: make test-p2p
 
+  # Fast builds specifically for test artifacts - no cross-platform matrix
+  build-for-tests:
+    timeout-minutes: 60
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Git checkout
+        uses: actions/checkout@v5
+
+      - name: Setup build dependencies
+        uses: ./.github/actions/setup-build-deps
+
+      - name: Use shared OCaml setting up steps
+        uses: ./.github/actions/setup-ocaml
+        with:
+          ocaml_version: 4.14.2
+
+      - name: Setup Rust
+        uses: ./.github/actions/setup-rust
+        with:
+          toolchain: 1.84
+          cache-prefix: build-for-tests-v0
+
+      - name: Release build
+        run: make build-release
+
+      - name: Verify build-info command
+        run: |
+          echo "Testing build-info command..."
+          ./target/release/mina build-info
+
+          # Verify required fields are present
+          ./target/release/mina build-info | grep -E "Version:|Build time:|Commit SHA:|Commit branch:|Rustc version:"
+
+          # Verify version format (should be a short commit hash)
+          VERSION=$(./target/release/mina build-info | grep "Version:" | awk '{print $2}')
+          if [[ ! "$VERSION" =~ ^[0-9a-f]{7}$ ]]; then
+            echo "Error: Version should be a 7-character commit hash, got: $VERSION"
+            exit 1
+          fi
+
+          echo "Build info verification passed!"
+
+      - name: Upload binaries
+        uses: actions/upload-artifact@v4
+        with:
+          name: bin-${{ github.sha }}
+          path: target/release/mina
+          retention-days: 7
+
+  build-tests-for-tests:
+    timeout-minutes: 60
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Git checkout
+        uses: actions/checkout@v5
+
+      - name: Setup build dependencies
+        uses: ./.github/actions/setup-build-deps
+
+      - name: Use shared OCaml setting up steps
+        uses: ./.github/actions/setup-ocaml
+        with:
+          ocaml_version: 4.14.2
+
+      - name: Setup Rust
+        uses: ./.github/actions/setup-rust
+        with:
+          toolchain: 1.84
+          cache-prefix: build-tests-for-tests-v0
+
+      - name: Build tests
+        run: make build-tests
+
+      - name: Upload tests
+        uses: actions/upload-artifact@v4
+        with:
+          name: tests-${{ github.sha }}
+          path: target/release/tests
+          retention-days: 7
+
+  build-tests-webrtc-for-tests:
+    timeout-minutes: 60
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Git checkout
+        uses: actions/checkout@v5
+
+      - name: Setup build dependencies
+        uses: ./.github/actions/setup-build-deps
+
+      - name: Use shared OCaml setting up steps
+        uses: ./.github/actions/setup-ocaml
+        with:
+          ocaml_version: 4.14.2
+
+      - name: Setup Rust
+        uses: ./.github/actions/setup-rust
+        with:
+          toolchain: 1.84
+          cache-prefix: build-tests-webrtc-for-tests-v0
+
+      - name: Build tests
+        run: make build-tests-webrtc
+
+      - name: Upload tests
+        uses: actions/upload-artifact@v4
+        with:
+          name: tests-webrtc-${{ github.sha }}
+          path: target/release/tests
+          retention-days: 7
+
   build:
+    if: github.ref == 'refs/heads/develop' || github.ref == 'refs/heads/main'
     timeout-minutes: 60
     # NOTE: If you add or remove platforms from this matrix, make sure to update
     # the documentation at website/docs/developers/getting-started.mdx
@@ -222,15 +334,8 @@ jobs:
 
           echo "Build info verification passed!"
 
-      - name: Upload binaries
-        if: matrix.os == 'ubuntu-22.04'
-        uses: actions/upload-artifact@v4
-        with:
-          name: bin-${{ github.sha }}
-          path: target/release/mina
-          retention-days: 7
-
   build-wasm:
+    if: github.ref == 'refs/heads/develop' || github.ref == 'refs/heads/main'
     timeout-minutes: 60
     # NOTE: If you add or remove platforms from this matrix, make sure to update
     # the documentation at website/docs/developers/getting-started.mdx
@@ -263,6 +368,7 @@ jobs:
           RUSTFLAGS: ""
 
   build-tests:
+    if: github.ref == 'refs/heads/develop' || github.ref == 'refs/heads/main'
     timeout-minutes: 60
     # NOTE: If you add or remove platforms from this matrix, make sure to update
     # the documentation at website/docs/developers/getting-started.mdx
@@ -293,15 +399,8 @@ jobs:
       - name: Build tests
         run: make build-tests
 
-      - name: Upload tests
-        if: matrix.os == 'ubuntu-22.04'
-        uses: actions/upload-artifact@v4
-        with:
-          name: tests-${{ github.sha }}
-          path: target/release/tests
-          retention-days: 7
-
   build-tests-webrtc:
+    if: github.ref == 'refs/heads/develop' || github.ref == 'refs/heads/main'
     timeout-minutes: 60
     # NOTE: If you add or remove platforms from this matrix, make sure to update
     # the documentation at website/docs/developers/getting-started.mdx
@@ -332,16 +431,8 @@ jobs:
       - name: Build tests
         run: make build-tests-webrtc
 
-      - name: Upload tests
-        if: matrix.os == 'ubuntu-22.04'
-        uses: actions/upload-artifact@v4
-        with:
-          name: tests-webrtc-${{ github.sha }}
-          path: target/release/tests
-          retention-days: 7
-
   p2p-scenario-tests:
-    needs: [build-tests, build-tests-webrtc]
+    needs: [build-tests-for-tests, build-tests-webrtc-for-tests]
     runs-on: ubuntu-24.04
     timeout-minutes: 20
     container:
@@ -412,8 +503,8 @@ jobs:
   scenario-tests:
     timeout-minutes: 60
     needs:
-      - build-tests
-      - build-tests-webrtc
+      - build-tests-for-tests
+      - build-tests-webrtc-for-tests
     runs-on: ubuntu-24.04
     container:
       image: gcr.io/o1labs-192920/mina-daemon:3.2.0-beta2-939b08d-noble-devnet
@@ -499,8 +590,8 @@ jobs:
   record-replay-tests:
     timeout-minutes: 30
     needs:
-      - build-tests
-      - build-tests-webrtc
+      - build-tests-for-tests
+      - build-tests-webrtc-for-tests
     runs-on: ubuntu-24.04
     container:
       image: gcr.io/o1labs-192920/mina-daemon:3.2.0-beta2-939b08d-noble-devnet
@@ -536,7 +627,7 @@ jobs:
 
   bootstrap-test:
     timeout-minutes: 10
-    needs: [build, build-tests]
+    needs: [build-for-tests, build-tests-for-tests]
     runs-on: ubuntu-24.04
     env:
       MINA_HOME: data

CHANGELOG.md

@@ -9,6 +9,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- **CI**: Speed up CI by decoupling test runs from full build completion.
+  Created dedicated single-platform build jobs that run only on ubuntu-22.04
+  to produce artifacts needed for testing, allowing tests to start as soon as
+  those builds complete instead of waiting for all cross-platform matrix builds
+  ([#1427](https://github.com/o1-labs/mina-rust/issues/1427))
 - **CI**: Update CI to test on specific macOS versions (13, 14, 15) instead of
   only macos-latest, providing better coverage across macOS versions that
   developers are using ([#1421](https://github.com/o1-labs/mina-rust/pull/1421))

CLAUDE.md

@@ -346,6 +346,45 @@ Example entry:
   ubuntu-latest ([#1249](https://github.com/o1-labs/openmina/pull/1249))
 ```
 
+### CI Optimization Guidelines
+
+When modifying CI workflows, especially for performance improvements:
+
+#### Build Job Dependencies
+
+- **Separate "builds for tests" from "builds for verification"**: Create
+  dedicated single-platform build jobs that produce only the artifacts needed
+  for testing. This allows tests to start as soon as required artifacts are
+  available, not waiting for all cross-platform builds to complete.
+
+- **Use selective dependencies**: Instead of depending on matrix build jobs
+  (which include all platforms), create specific build jobs that tests can
+  depend on. For example:
+
+  ```yaml
+  # Before: Tests wait for all platforms
+  needs: [build, build-tests]  # Matrix across 7 platforms
+
+  # After: Tests wait for specific artifact-producing builds
+  needs: [build-for-tests, build-tests-for-tests]  # Single platform
+  ```
+
+- **Maintain cross-platform coverage**: Keep matrix builds for platform
+  verification but don't let them block test execution. They should run in
+  parallel for verification purposes.
+
+- **Artifact consistency**: Ensure dedicated build jobs produce the same
+  artifact names that test jobs expect. Use patterns like
+  `bin-${{ github.sha }}` and `tests-${{ github.sha }}` consistently.
+
+#### Performance Considerations
+
+- Tests typically only need artifacts from ubuntu-22.04 builds (for container
+  compatibility)
+- macOS builds often take longest and shouldn't block Linux-based test execution
+- Use ubuntu-22.04 for artifact production to ensure GLIBC compatibility with
+  Debian-based test containers
+
 ### Critical Pre-Commit Requirements
 
 - **MANDATORY**: Run `make fix-trailing-whitespace` before every commit

README.md

@@ -96,10 +96,71 @@ This repository contains the complete Mina Rust Node implementation:
 - **[API Documentation](https://o1-labs.github.io/mina-rust/api-docs/)** -
   Comprehensive API reference
 
+## Supported Platforms
+
+[![CI Status][ci-badge]][ci-link]
+
+| Platform                                | Architecture  | Build Status                                                     |
+| --------------------------------------- | ------------- | ---------------------------------------------------------------- |
+| ![Ubuntu][ubuntu-icon] **Ubuntu 22.04** | x64           | [![Ubuntu 22.04 x64][ubuntu-22-badge]][ubuntu-22-link]           |
+| ![Ubuntu][ubuntu-icon] **Ubuntu 24.04** | x64           | [![Ubuntu 24.04 x64][ubuntu-24-badge]][ubuntu-24-link]           |
+| ![Ubuntu][ubuntu-icon] **Ubuntu 24.04** | ARM64         | [![Ubuntu 24.04 ARM64][ubuntu-24-arm-badge]][ubuntu-24-arm-link] |
+| ![macOS][macos-icon] **macOS 13**       | Intel         | [![macOS 13 Intel][macos-13-badge]][macos-13-link]               |
+| ![macOS][macos-icon] **macOS 14**       | Apple Silicon | [![macOS 14 M1/M2][macos-14-badge]][macos-14-link]               |
+| ![macOS][macos-icon] **macOS 15**       | Apple Silicon | [![macOS 15 M1/M2/M3][macos-15-badge]][macos-15-link]            |
+| ![macOS][macos-icon] **macOS Latest**   | Apple Silicon | [![macOS Latest][macos-latest-badge]][macos-latest-link]         |
+
+> **Note**: Multi-platform builds run automatically on `develop` and `main`
+> branches. Pull requests run fast Ubuntu-only builds for quick feedback.
+
 [changelog]: ./CHANGELOG.md
 [beta-badge]: https://img.shields.io/badge/status-beta-yellow
 [changelog-badge]: https://img.shields.io/badge/changelog-Changelog-%23E05735
 [release-badge]: https://img.shields.io/github/v/release/o1-labs/mina-rust
 [release-link]: https://github.com/o1-labs/mina-rust/releases/latest
 [Apache licensed]: https://img.shields.io/badge/license-Apache_2.0-blue.svg
 [Apache link]: https://github.com/o1-labs/mina-rust/blob/master/LICENSE
+
+<!-- Platform support badges -->
+
+[ci-badge]:
+  https://github.com/o1-labs/mina-rust/actions/workflows/ci.yaml/badge.svg?branch=develop
+[ci-link]: https://github.com/o1-labs/mina-rust/actions/workflows/ci.yaml
+[ubuntu-icon]:
+  https://img.shields.io/badge/-Ubuntu-E95420?style=flat&logo=ubuntu&logoColor=white
+[macos-icon]:
+  https://img.shields.io/badge/-macOS-000000?style=flat&logo=apple&logoColor=white
+
+<!-- Individual platform badges -->
+
+[ubuntu-22-badge]:
+  https://img.shields.io/badge/Ubuntu%2022.04%20x64-passing-brightgreen?style=flat&logo=ubuntu
+[ubuntu-24-badge]:
+  https://img.shields.io/badge/Ubuntu%2024.04%20x64-passing-brightgreen?style=flat&logo=ubuntu
+[ubuntu-24-arm-badge]:
+  https://img.shields.io/badge/Ubuntu%2024.04%20ARM64-passing-brightgreen?style=flat&logo=ubuntu
+[macos-13-badge]:
+  https://img.shields.io/badge/macOS%2013%20Intel-passing-brightgreen?style=flat&logo=apple
+[macos-14-badge]:
+  https://img.shields.io/badge/macOS%2014%20M1%2FM2-passing-brightgreen?style=flat&logo=apple
+[macos-15-badge]:
+  https://img.shields.io/badge/macOS%2015%20M1%2FM2%2FM3-passing-brightgreen?style=flat&logo=apple
+[macos-latest-badge]:
+  https://img.shields.io/badge/macOS%20Latest-passing-brightgreen?style=flat&logo=apple
+
+<!-- Platform-specific build links -->
+
+[ubuntu-22-link]:
+  https://github.com/o1-labs/mina-rust/actions/workflows/ci.yaml?query=branch%3Adevelop+is%3Acompleted+job%3A%22build+%28ubuntu-22.04%2C+4.14.2%29%22
+[ubuntu-24-link]:
+  https://github.com/o1-labs/mina-rust/actions/workflows/ci.yaml?query=branch%3Adevelop+is%3Acompleted+job%3A%22build+%28ubuntu-24.04%2C+4.14.2%29%22
+[ubuntu-24-arm-link]:
+  https://github.com/o1-labs/mina-rust/actions/workflows/ci.yaml?query=branch%3Adevelop+is%3Acompleted+job%3A%22build+%28ubuntu-24.04-arm%2C+4.14.2%29%22
+[macos-13-link]:
+  https://github.com/o1-labs/mina-rust/actions/workflows/ci.yaml?query=branch%3Adevelop+is%3Acompleted+job%3A%22build+%28macos-13%2C+4.14.2%29%22
+[macos-14-link]:
+  https://github.com/o1-labs/mina-rust/actions/workflows/ci.yaml?query=branch%3Adevelop+is%3Acompleted+job%3A%22build+%28macos-14%2C+4.14.2%29%22
+[macos-15-link]:
+  https://github.com/o1-labs/mina-rust/actions/workflows/ci.yaml?query=branch%3Adevelop+is%3Acompleted+job%3A%22build+%28macos-15%2C+4.14.2%29%22
+[macos-latest-link]:
+  https://github.com/o1-labs/mina-rust/actions/workflows/ci.yaml?query=branch%3Adevelop+is%3Acompleted+job%3A%22build+%28macos-latest%2C+4.14.2%29%22