build(release): configure semantic release

.github/semantic.yml

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+allowMergeCommits: true
+allowRevertCommits: true
+titleAndCommits: true
+types:
+  - feat
+  - fix
+  - style
+  - refactor
+  - perf
+  - test
+  - build
+  - docs
+  - chore

.github/workflows/release-alpha.yml

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+name: Alpha release
+on:
+  push:
+    branches:
+      - alpha
+jobs:
+  Release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Cache node_modules
+        if: github.event_name == 'push' || github.event_name == 'pull_request'
+        uses: actions/cache@v2
+        env:
+          cache-name: cache-node-modules
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-build-${{ env.cache-name }}-
+            ${{ runner.os }}-build-
+            ${{ runner.os }}-
+      - name: Install dependencies
+        run: npm ci
+      - name: Release
+        run: npm run semver
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/release.yml

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+name: Release
+on:
+  push:
+    branches:
+      - master
+jobs:
+  CurrentTag:
+    runs-on: ubuntu-latest
+    outputs:
+      CURRENT_TAG: ${{ steps.save-current-tag.outputs.CURRENT_TAG }}
+    steps:
+      - name: Checkout main
+        uses: actions/checkout@v2
+        with:
+          ref: main
+      - name: Reset branch
+        run: |
+          git fetch origin master:master
+          git reset --hard master
+      - name: Get current tag
+        id: current-tag
+        uses: WyriHaximus/github-action-get-previous-tag@master
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Save current tag
+        id: save-current-tag
+        run: echo '::set-output name=CURRENT_TAG::${{ steps.current-tag.outputs.tag }}'
+  Release:
+    runs-on: ubuntu-latest
+    needs: [CurrentTag]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Cache node_modules
+        if: github.event_name == 'push' || github.event_name == 'pull_request'
+        uses: actions/cache@v2
+        env:
+          cache-name: cache-node-modules
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-build-${{ env.cache-name }}-
+            ${{ runner.os }}-build-
+            ${{ runner.os }}-
+      - name: Install dependencies
+        run: npm ci
+      - name: Release
+        run: npm run semver
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+  PR:
+    runs-on: ubuntu-latest
+    needs: [CurrentTag, Release]
+    steps:
+      - name: Checkout main
+        uses: actions/checkout@v2
+        with:
+          ref: main
+      - name: Reset branch
+        run: |
+          git fetch origin master:master
+          git reset --hard master
+      - name: Get latest tag
+        id: latest-tag
+        uses: WyriHaximus/github-action-get-previous-tag@master
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Show current tag
+        run: echo 'The current tag is ${{ needs.CurrentTag.outputs.CURRENT_TAG }}'
+      - name: Has new tag
+        if: needs.CurrentTag.outputs.CURRENT_TAG != steps.latest-tag.outputs.tag
+        run: echo 'The current tag is not the same after the release. A new tag has been created'
+      - name: Has same tag
+        if: needs.CurrentTag.outputs.CURRENT_TAG == steps.latest-tag.outputs.tag
+        run: echo 'The current tag did not change'
+      - name: Create PR from master to main
+        if: needs.CurrentTag.outputs.CURRENT_TAG != steps.latest-tag.outputs.tag
+        uses: peter-evans/create-pull-request@v3
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          title: 'chore(main): merge master into main due to new version v${{ steps.latest-tag.outputs.tag }}'
+          branch: feature/merge-master-into-main
+          commit-message: 'chore(main): merge master into main'
+          body: |
+            This PR was generated after the creation of the version v${{ steps.latest-tag.outputs.tag }}
+
+            The release is available on:
+            - [GitHub release](https://github.com/actions/stale/releases/tag/${{ steps.latest-tag.outputs.tag }})

.releaserc.json

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+{
+  "branches": [
+    "master",
+    {
+      "name": "alpha",
+      "prerelease": true
+    }
+  ],
+  "plugins": [
+    [
+      "@semantic-release/commit-analyzer",
+      {
+        "preset": "angular"
+      }
+    ],
+    [
+      "@semantic-release/release-notes-generator",
+      {
+        "preset": "angular",
+        "writerOpts": {
+          "commitsSort": [
+            "subject",
+            "scope"
+          ]
+        },
+        "linkCompare": true,
+        "linkReferences": true,
+        "commit": "commit",
+        "issue": "issues"
+      }
+    ],
+    [
+      "@semantic-release/changelog",
+      {
+        "changelogFile": "CHANGELOG.md",
+        "changelogTitle": "# Stale Changelog"
+      }
+    ],
+    [
+      "@semantic-release/git",
+      {
+        "assets": [
+          "package.json",
+          "package-lock.json",
+          "CHANGELOG.md"
+        ],
+        "message": "build(release): new version v${nextRelease.version}"
+      }
+    ],
+    [
+      "@semantic-release/github",
+      {
+        "assets": [
+          {
+            "path": "dist/index.js",
+            "name": "stale-${nextRelease.gitTag}.js",
+            "label": "Stale ${nextRelease.gitTag} release"
+          }
+        ],
+        "addReleases": "bottom"
+      }
+    ]
+  ],
+  "dryRun": false,
+  "ci": true,
+  "debug": false,
+  "tagFormat": "v${version}"
+}