CI: some improvements for faster PR builds

.github/actions/setup-go/action.yml

@@ -0,0 +1,55 @@
+name: 'Setup Go with caching'
+description: 'Set up Go with mod and build caching'
+inputs:
+  cache-prefix:
+    description: 'Cache prefix for advanced caching (e.g., "test", "build-e2e", "buildsrc")'
+    required: false
+    default: ''
+runs:
+  using: 'composite'
+  steps:
+    - name: Get Go version
+      id: go_version
+      run: echo "GO_VERSION=$(./scripts/get_golang_version.sh)" >> $GITHUB_ENV
+      shell: bash
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: ${{ env.GO_VERSION }}
+        cache: ${{ inputs.cache-prefix == '' }}
+    # branch-aware caching with fallback key prefixes following examples from:
+    # https://github.com/algorand/go-algorand/blob/ab03c94d2008dd349b761ef2b949e17b361996a3/.circleci/config.yml#L407-L439
+    # https://danp.net/posts/github-actions-go-cache/
+    - name: Set cache date and paths
+      if: inputs.cache-prefix != ''
+      shell: bash
+      run: |
+        echo "GO_CACHE_DATE=$(date +'%Y-%m-%d')" >> $GITHUB_ENV
+        echo "GOMODCACHE=$(go env GOMODCACHE)" >> $GITHUB_ENV
+        echo "GOCACHE=$(go env GOCACHE)" >> $GITHUB_ENV
+    - name: Cache Go modules
+      if: inputs.cache-prefix != ''
+      uses: actions/cache@v4
+      with:
+        path: ${{ env.GOMODCACHE }}
+        key: ${{ inputs.cache-prefix }}-${{ runner.os }}-${{ runner.arch }}-go-mod-${{ github.ref_name }}-${{ hashFiles('**/go.sum') }}-${{ env.GO_CACHE_DATE }}
+        restore-keys: |
+          ${{ inputs.cache-prefix }}-${{ runner.os }}-${{ runner.arch }}-go-mod-${{ github.ref_name }}-${{ hashFiles('**/go.sum') }}-
+          ${{ inputs.cache-prefix }}-${{ runner.os }}-${{ runner.arch }}-go-mod-${{ github.ref_name }}-
+          ${{ inputs.cache-prefix }}-${{ runner.os }}-${{ runner.arch }}-go-mod-master-
+          ${{ inputs.cache-prefix }}-${{ runner.os }}-${{ runner.arch }}-go-mod-
+    - name: Cache Go build cache
+      if: inputs.cache-prefix != ''
+      uses: actions/cache@v4
+      with:
+        path: ${{ env.GOCACHE }}
+        key: ${{ inputs.cache-prefix }}-${{ runner.os }}-${{ runner.arch }}-go-build-${{ github.ref_name }}-${{ hashFiles('**/go.sum') }}-${{ env.GO_CACHE_DATE }}
+        restore-keys: |
+          ${{ inputs.cache-prefix }}-${{ runner.os }}-${{ runner.arch }}-go-build-${{ github.ref_name }}-${{ hashFiles('**/go.sum') }}-
+          ${{ inputs.cache-prefix }}-${{ runner.os }}-${{ runner.arch }}-go-build-${{ github.ref_name }}-
+          ${{ inputs.cache-prefix }}-${{ runner.os }}-${{ runner.arch }}-go-build-master-
+          ${{ inputs.cache-prefix }}-${{ runner.os }}-${{ runner.arch }}-go-build-
+    - name: Download Go modules
+      if: inputs.cache-prefix != ''
+      shell: bash
+      run: go mod download

.github/actions/setup-test/action.yml

@@ -0,0 +1,40 @@
+name: 'Set up Test Environment'
+description: 'Set up testing environment for all platforms'
+inputs:
+  install-expect:
+    description: 'Whether to install expect package'
+    required: false
+    default: 'false'
+runs:
+  using: 'composite'
+  steps:
+    - name: Cache libsodium
+      uses: actions/cache@v4
+      with:
+        path: crypto/libs
+        key: libsodium-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles('crypto/libsodium-fork/**') }}
+    - name: Build libsodium
+      run: make libsodium
+      shell: bash
+    - name: Configure development environment
+      if: runner.os != 'Linux'
+      run: ./scripts/configure_dev.sh
+      shell: bash
+      # GHA Linux VMs provide all needed apt packages, except expect
+    - name: Install expect package
+      if: inputs.install-expect == 'true' && runner.os == 'Linux'
+      run: |
+        echo 'set man-db/auto-update false' | sudo debconf-communicate >/dev/null
+        sudo dpkg-reconfigure -f noninteractive man-db
+        sudo apt-get install -y --no-upgrade expect
+      shell: bash
+    - name: Cache gotestsum
+      id: cache-gotestsum
+      uses: actions/cache@v4
+      with:
+        path: ~/go/bin/gotestsum
+        key: gotestsum-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles('scripts/buildtools/versions') }}
+    - name: Install gotestsum
+      if: steps.cache-gotestsum.outputs.cache-hit != 'true'
+      run: ./scripts/buildtools/install_buildtools.sh -o "gotest.tools/gotestsum"
+      shell: bash

.github/actions/slack-notify/action.yml

@@ -0,0 +1,35 @@
+name: 'Slack Failure Notification'
+description: 'Send failure notification to Slack'
+inputs:
+  job-type:
+    description: 'Type of job that failed (e.g., Test, Integration Test, etc.)'
+    required: true
+  build-type:
+    description: 'Type of build (e.g., PR Build, Nightly Build)'
+    required: true
+  details:
+    description: 'Additional job-specific details (formatted string)'
+    required: false
+    default: ''
+runs:
+  using: 'composite'
+  steps:
+    - name: Send Slack notification
+      if: env.SLACK_WEBHOOK != ''
+      uses: slackapi/slack-github-action@v2.1.0
+      with:
+        webhook: ${{ env.SLACK_WEBHOOK }}
+        webhook-type: webhook-trigger
+        payload: |
+          {
+            "text": "🚨 ${{ inputs.job-type }} Failure Alert",
+            "blocks": [
+              {
+                "type": "section",
+                "text": {
+                  "type": "mrkdwn",
+                  "text": "*${{ inputs.job-type }} Failure in ${{ inputs.build-type }}*\n\n• Job Type: `${{ github.job }}`\n• Platform: `${{ matrix.platform }}`${{ inputs.details != '' && format('\n{0}', inputs.details) || '' }}\n• Run URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+                }
+              }
+            ]
+          }

.github/workflows/benchmarks.yml

@@ -18,12 +18,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5
-        with:
-          go-version-file: 'go.mod'
+      - name: Set up Go
+        uses: ./.github/actions/setup-go
       - run: go version
       - name: Build go-algorand
-        run: scripts/travis/build.sh
+        run: |
+          export SKIP_GO_INSTALLATION=True
+          scripts/travis/build.sh
       # BenchmarkUintMath - Serves as a proxy for AVM `eval` performance.
       # Performance degradations suggest either or both:  (1) op code
       # degradation, (2) `eval` degradation.  (2) suggests a broader performance

.github/workflows/build.yml → .github/workflows/build-windows.yml

@@ -20,19 +20,14 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - name: Determine Go version
-        id: go_version
-        run: echo "GO_VERSION=$(./scripts/get_golang_version.sh)" >> $GITHUB_ENV
-      - name: Install golang
-        uses: actions/setup-go@v5
-        with:
-          go-version: ${{ env.GO_VERSION }}
+      - name: Set up Go
+        uses: ./.github/actions/setup-go
       - name: Restore libsodium from cache
         id: cache-libsodium
         uses: actions/cache@v4
         with:
           path: crypto/libs
-          key: libsodium-fork-v2-${{ runner.os }}-${{ hashFiles('crypto/libsodium-fork/**') }}
+          key: libsodium-fork-v2-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles('crypto/libsodium-fork/**') }}
       - name: Build
         run: |
           export ALGORAND_DEADLOCK=enable