Add support for automated release using GitHub Actions

.github/actions/get-prerelease/action.yml

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+name: Return a boolean indicating if the version contains prerelease identifiers
+
+#
+# Returns a simple true/false boolean indicating whether the version indicates it's a prerelease or not.
+#
+# TODO: Remove once the common repo is public.
+#
+
+inputs:
+  version:
+    required: true
+
+outputs:
+  prerelease:
+    value: ${{ steps.get_prerelease.outputs.PRERELEASE }}
+
+runs:
+  using: composite
+
+  steps:
+    - id: get_prerelease
+      shell: bash
+      run: |
+        if [[ "${VERSION}" == *"beta"* || "${VERSION}" == *"alpha"* ]]; then
+          echo "PRERELEASE=true" >> $GITHUB_OUTPUT
+        else
+          echo "PRERELEASE=false" >> $GITHUB_OUTPUT
+        fi
+      env:
+        VERSION: ${{ inputs.version }}

.github/actions/get-release-notes/action.yml

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+name: Return the release notes extracted from the PR body
+
+#
+# Returns the release notes from the content of a pull request linked to a release branch. It expects the branch name to be in the format release/vX.Y.Z, release/X.Y.Z, release/vX.Y.Z-beta.N. etc.
+#
+# TODO: Remove once the common repo is public.
+#
+inputs:
+  version :
+    required: true
+  repo_name:
+    required: false
+  repo_owner:
+    required: true
+  token:
+    required: true
+
+runs:
+  using: composite
+
+  steps:
+    - uses: actions/github-script@v7
+      id: get_release_notes
+      with:
+        result-encoding: string
+        script: |
+          const { data: pulls } = await github.rest.pulls.list({
+            owner: process.env.REPO_OWNER,
+            repo: process.env.REPO_NAME,
+            state: 'all',
+            head: `${process.env.REPO_OWNER}:release/${process.env.VERSION}`,
+          });
+          core.exportVariable('RELEASE_NOTES', pulls[0].body)
+      env:
+        GITHUB_TOKEN: ${{ inputs.token }}
+        REPO_OWNER: ${{ inputs.repo_owner }}
+        REPO_NAME: ${{ inputs.repo_name }}
+        VERSION: ${{ inputs.version }}

.github/actions/get-version/action.yml

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+name: Return the version extracted from the branch name
+
+#
+# Returns the version from the .version file.
+#
+# TODO: Remove once the common repo is public.
+#
+
+outputs:
+  version:
+    value: ${{ steps.get_version.outputs.VERSION }}
+
+runs:
+  using: composite
+
+  steps:
+    - id: get_version
+      shell: bash
+      run: |
+        VERSION=$(head -1 .version)
+        echo "VERSION=${VERSION}" >> $GITHUB_OUTPUT

.github/actions/publish-package/action.yml

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+name: Publish release to package manager
+
+inputs:
+  node-version:
+    required: true
+  npm-token:
+    required: true
+  version:
+    required: true
+
+runs:
+  using: composite
+
+  steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Setup Node
+      uses: actions/setup-node@v4
+      with:
+        node-version: ${{ inputs.node-version }}
+        cache: 'npm'
+        registry-url: 'https://registry.npmjs.org'
+
+    - name: Build package
+      uses: ./.github/actions/build
+      with:
+        node: ${{ inputs.node-version }}
+
+    - name: Publish release to NPM
+      shell: bash
+      run: |
+        if [[ "${VERSION}" == *"beta"* ]]; then
+          TAG="beta"
+        elif [[ "${VERSION}" == *"alpha"* ]]; then
+          TAG="alpha"
+        else
+          TAG="latest"
+        fi
+        npm publish --provenance --tag $TAG
+      env:
+        NODE_AUTH_TOKEN: ${{ inputs.npm-token }}
+        VERSION: ${{ inputs.version }}

.github/actions/release-create/action.yml

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+name: Create a GitHub release
+
+#
+# Creates a GitHub release with the given version.
+#
+# TODO: Remove once the common repo is public.
+#
+
+inputs:
+  token:
+    required: true
+  files:
+    required: false
+  name:
+    required: true
+  body:
+    required: true
+  tag:
+    required: true
+  commit:
+    required: true
+  draft:
+    default: false
+    required: false
+  prerelease:
+    default: false
+    required: false
+  fail_on_unmatched_files:
+    default: true
+    required: false
+
+runs:
+  using: composite
+
+  steps:
+    - uses: softprops/action-gh-release@de2c0eb89ae2a093876385947365aca7b0e5f844
+      with:
+        body: ${{ inputs.body }}
+        name: ${{ inputs.name }}
+        tag_name: ${{ inputs.tag }}
+        target_commitish: ${{ inputs.commit }}
+        draft: ${{ inputs.draft }}
+        prerelease: ${{ inputs.prerelease }}
+        fail_on_unmatched_files: ${{ inputs.fail_on_unmatched_files }}
+        files: ${{ inputs.files }}
+      env:
+        GITHUB_TOKEN: ${{ inputs.token }}

.github/actions/tag-exists/action.yml

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+name: Return a boolean indicating if a tag already exists for the repository
+
+#
+# Returns a simple true/false boolean indicating whether the tag exists or not.
+#
+# TODO: Remove once the common repo is public.
+#
+
+inputs:
+  token:
+    required: true
+  tag:
+    required: true
+
+outputs:
+  exists:
+    description: 'Whether the tag exists or not'
+    value: ${{ steps.tag-exists.outputs.EXISTS }}
+
+runs:
+  using: composite
+
+  steps:
+    - id: check
+      shell: bash
+      run: |
+        GET_API_URL="https://api.github.com/repos/${GITHUB_REPOSITORY}/git/ref/tags/${TAG_NAME}"
+        http_status_code=$(curl -LI $GET_API_URL -o /dev/null -w '%{http_code}\n' -s -H "Authorization: token ${GITHUB_TOKEN}")
+        if [ "$http_status_code" -ne "404" ] ; then
+          echo "EXISTS=true" >> $GITHUB_OUTPUT
+        else
+          echo "EXISTS=false" >> $GITHUB_OUTPUT
+        fi
+      env:
+        TAG_NAME: ${{ inputs.tag }}
+        GITHUB_TOKEN: ${{ inputs.token }}