feat: add release automation for v2 packages

.github/release-please-v2.json

@@ -0,0 +1,23 @@
+{
+  "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json",
+  "release-type": "simple",
+  "bump-minor-pre-major": true,
+  "bump-patch-for-minor-pre-major": true,
+  "group-pull-request-title-pattern": "chore(v2): Release ${version}",
+  "pull-request-header": "Pending Aztec Packages v2 release",
+  "versioning": "always-bump-patch",
+  "include-component-in-tag": false,
+  "changelog-sections": [
+    { "type": "feat", "section": "Features", "hidden": false },
+    { "type": "fix", "section": "Bug Fixes", "hidden": false },
+    { "type": "chore", "section": "Miscellaneous", "hidden": false },
+    { "type": "test", "section": "Miscellaneous", "hidden": false },
+    { "type": "refactor", "section": "Miscellaneous", "hidden": false },
+    { "type": "docs", "section": "Documentation", "hidden": false }
+  ],
+  "packages": {
+    ".": {
+      "release-type": "simple"
+    }
+  }
+}

.github/workflows/ci3.yml

@@ -136,7 +136,7 @@ jobs:
             exec ./ci.sh docs
           elif [ "${CI_BARRETENBERG:-0}" -eq 1 ]; then
             exec ./ci.sh barretenberg
-          elif [ "${{ contains(github.ref, '-nightly.') }}" == "true" ]; then
+          elif [ "${{ contains(github.ref, '-nightly.') }}" == "true" ] || [ "${{ contains(github.ref, '-rc.') }}" == "true" ]; then
             exec ./ci.sh nightly
           elif [ "${{ startsWith(github.ref, 'refs/tags/v') }}" == "true" ]; then
             exec ./ci.sh release

.github/workflows/create-release-branch.yml

@@ -0,0 +1,66 @@
+name: Create Release Branch
+
+# Take the current version from the release-please-manifest.json file on `next`,
+# and create a release branch for it. Then update the release-please-manifest.json file on `next` to the next version.
+
+on:
+  workflow_dispatch:
+    inputs:
+      source_commit:
+        description: "Source commit SHA from next branch"
+        required: true
+        type: string
+
+env:
+  GITHUB_TOKEN: ${{ secrets.AZTEC_BOT_GITHUB_TOKEN }}
+
+jobs:
+  create-release-branch:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+        with:
+          ref: ${{ github.event.inputs.source_commit }}
+          token: ${{ secrets.AZTEC_BOT_GITHUB_TOKEN }}
+          fetch-depth: 0
+
+      - name: Configure Git
+        run: |
+          git config --global user.name "AztecBot"
+          git config --global user.email "[email protected]"
+
+      - name: Create release branch
+        run: |
+          # Get the version from the release-please-manifest.json file
+          CURRENT_VERSION=$(jq -r '."."' .release-please-manifest.json)
+
+          # grab major version
+          CURRENT_MAJOR_VERSION="${CURRENT_VERSION%%.*}"
+
+          # create branch name
+          BRANCH_NAME="v${CURRENT_MAJOR_VERSION}"
+
+          # Check if branch already exists
+          if git ls-remote --heads origin "$BRANCH_NAME" | grep -q "$BRANCH_NAME"; then
+            echo "Error: Branch $BRANCH_NAME already exists"
+            exit 1
+          fi
+
+          # Create and push the branch
+          git checkout -b "$BRANCH_NAME"
+          git push origin "$BRANCH_NAME"
+
+          # increment major version
+          NEXT_MAJOR_VERSION=$((CURRENT_MAJOR_VERSION + 1))
+          NEXT_VERSION="${NEXT_MAJOR_VERSION}.0.0"
+
+          # update release-please-manifest.json on `next` branch
+          git fetch origin next
+          git checkout -B next origin/next
+          jq --arg version "$NEXT_VERSION" '.["."] = $version' .release-please-manifest.json > temp.json && mv temp.json .release-please-manifest.json
+          git add .release-please-manifest.json
+          git commit -m "chore(release): update release-please-manifest.json to $NEXT_VERSION"
+          git push origin next

.github/workflows/release-please.yml

@@ -3,6 +3,7 @@ name: release-please
 on:
   push:
     branches:
+      - "v[0-9]*"
       - master
 
 permissions:
@@ -27,6 +28,105 @@ jobs:
           config-file: .github/release-please-${{ github.ref_name }}.json
           target-branch: ${{ github.ref_name }}
 
+  auto-tag:
+    needs: [release-please]
+    if: ${{ startsWith(github.ref, 'refs/heads/v') }}
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+        with:
+          fetch-depth: 0
+          token: ${{ secrets.AZTEC_BOT_GITHUB_TOKEN }}
+
+      - name: Extract version from branch name
+        id: version
+        run: |
+          BRANCH_NAME="${GITHUB_REF#refs/heads/}"
+          MAJOR_VERSION="${BRANCH_NAME#v}"
+          echo "branch=$BRANCH_NAME" >> $GITHUB_OUTPUT
+          echo "major=$MAJOR_VERSION" >> $GITHUB_OUTPUT
+
+      - name: Determine next version
+        id: next_version
+        run: |
+          # Read current version from release-please manifest and use it directly
+          if [ ! -f .release-please-manifest.json ]; then
+            echo "Error: .release-please-manifest.json not found"
+            exit 1
+          fi
+
+          MANIFEST_VERSION=$(jq -r '."."' .release-please-manifest.json)
+          echo "Manifest version: $MANIFEST_VERSION"
+
+          # Ensure manifest major matches vX branch major
+          BRANCH_MAJOR="${{ steps.version.outputs.major }}"
+          if [ -z "$BRANCH_MAJOR" ]; then
+            echo "Error: Branch major version not available from previous step"
+            exit 1
+          fi
+
+          MANIFEST_MAJOR="${MANIFEST_VERSION%%.*}"
+          if [ "$MANIFEST_MAJOR" != "$BRANCH_MAJOR" ]; then
+            echo "Error: Manifest major ($MANIFEST_MAJOR) does not match branch major ($BRANCH_MAJOR)"
+            exit 1
+          fi
+
+          if [[ "$MANIFEST_VERSION" =~ ^([0-9]+)\.([0-9]+)\.([0-9]+)$ ]]; then
+            NEXT_VERSION="$MANIFEST_VERSION"
+          else
+            echo "Error: Invalid manifest version format"
+            exit 1
+          fi
+
+          echo "version=$NEXT_VERSION" >> $GITHUB_OUTPUT
+          echo "Next version will be: $NEXT_VERSION"
+
+      - name: Get next RC number
+        id: rc
+        run: |
+          # Get all existing RC tags for this specific version
+          EXISTING_TAGS=$(git tag -l "v${{ steps.next_version.outputs.version }}-rc.*" | sort -V)
+
+          if [ -z "$EXISTING_TAGS" ]; then
+            # No RC tags exist yet for this version, start with 1
+            NEXT_RC=1
+          else
+            # Extract the highest RC number and increment
+            LAST_TAG=$(echo "$EXISTING_TAGS" | tail -n 1)
+            LAST_RC=$(echo "$LAST_TAG" | sed 's/.*-rc\.\([0-9]\+\)$/\1/')
+            NEXT_RC=$((LAST_RC + 1))
+          fi
+
+          echo "number=$NEXT_RC" >> $GITHUB_OUTPUT
+          echo "Next RC number: $NEXT_RC"
+
+      - name: Check if commit already tagged
+        id: check_tag
+        run: |
+          # Check if current commit already has any RC tag
+          EXISTING_TAGS=$(git tag --points-at HEAD | grep "^v.*-rc\." || true)
+
+          if [ -n "$EXISTING_TAGS" ]; then
+            echo "Commit already tagged as: $EXISTING_TAGS"
+            echo "skip=true" >> $GITHUB_OUTPUT
+          else
+            echo "skip=false" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Create and push new RC tag
+        if: steps.check_tag.outputs.skip != 'true'
+        run: |
+          TAG_NAME="v${{ steps.next_version.outputs.version }}-rc.${{ steps.rc.outputs.number }}"
+
+          # Create annotated tag
+          git tag -a "$TAG_NAME" -m "Release candidate ${{ steps.rc.outputs.number }} for v${{ steps.next_version.outputs.version }}"
+          git push origin "$TAG_NAME"
+
+          echo "✅ Created tag: $TAG_NAME"
+
   update-docs:
     name: Update docs
     env:

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "1.2.1"
+  ".": "2.0.0"
 }