ci: add semantic release

Author: mtrezza

.github/workflows/release.yml

@@ -1,24 +1,25 @@
 name: release
 on:
-  release:
-    types: [published]
+  push:
+    branches: [ main, alpha, beta ]
 jobs:
   publish-npm:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
-        with:
-          node-version: '10.14'
-          registry-url: https://registry.npmjs.org/
-      - name: Cache Node.js modules
-        uses: actions/cache@v2
-        with:
-          path: ~/.npm
-          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
-          restore-keys: |
-              ${{ runner.os }}-node-
-      - run: npm ci
-      - run: npm publish
-        env:
-          NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}
+    - uses: actions/checkout@v2
+    - uses: actions/setup-node@v1
+      with:
+        node-version: 12
+        registry-url: https://registry.npmjs.org/
+    - name: Cache Node.js modules
+      uses: actions/cache@v2
+      with:
+        path: ~/.npm
+        key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+        restore-keys: |
+            ${{ runner.os }}-node-
+    - run: npm ci
+    - run: npx semantic-release
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

.releaserc/commit.hbs

@@ -0,0 +1,60 @@
+*{{#if scope}} **{{scope}}:**
+{{~/if}} {{#if subject}}
+  {{~subject}}
+{{~else}}
+  {{~header}}
+{{~/if}}
+
+{{~!-- commit link --}} {{#if @root.linkReferences~}}
+  ([{{shortHash}}](
+  {{~#if @root.repository}}
+    {{~#if @root.host}}
+      {{~@root.host}}/
+    {{~/if}}
+    {{~#if @root.owner}}
+      {{~@root.owner}}/
+    {{~/if}}
+    {{~@root.repository}}
+  {{~else}}
+    {{~@root.repoUrl}}
+  {{~/if}}/
+  {{~@root.commit}}/{{hash}}))
+{{~else}}
+  {{~shortHash}}
+{{~/if}}
+
+{{~!-- commit references --}}
+{{~#if references~}}
+  , closes
+  {{~#each references}} {{#if @root.linkReferences~}}
+    [
+    {{~#if this.owner}}
+      {{~this.owner}}/
+    {{~/if}}
+    {{~this.repository}}#{{this.issue}}](
+    {{~#if @root.repository}}
+      {{~#if @root.host}}
+        {{~@root.host}}/
+      {{~/if}}
+      {{~#if this.repository}}
+        {{~#if this.owner}}
+          {{~this.owner}}/
+        {{~/if}}
+        {{~this.repository}}
+      {{~else}}
+        {{~#if @root.owner}}
+          {{~@root.owner}}/
+        {{~/if}}
+          {{~@root.repository}}
+        {{~/if}}
+    {{~else}}
+      {{~@root.repoUrl}}
+    {{~/if}}/
+    {{~@root.issue}}/{{this.issue}})
+  {{~else}}
+    {{~#if this.owner}}
+      {{~this.owner}}/
+    {{~/if}}
+    {{~this.repository}}#{{this.issue}}
+  {{~/if}}{{/each}}
+{{~/if}}

.releaserc/footer.hbs

@@ -0,0 +1,11 @@
+{{#if noteGroups}}
+{{#each noteGroups}}
+
+### {{title}}
+
+{{#each notes}}
+* {{#if commit.scope}}**{{commit.scope}}:** {{/if}}{{text}}
+{{/each}}
+{{/each}}
+
+{{/if}}

.releaserc/header.hbs

@@ -0,0 +1,25 @@
+{{#if isPatch~}}
+  ##
+{{~else~}}
+  #
+{{~/if}} {{#if @root.linkCompare~}}
+  [{{version}}](
+  {{~#if @root.repository~}}
+    {{~#if @root.host}}
+      {{~@root.host}}/
+    {{~/if}}
+    {{~#if @root.owner}}
+      {{~@root.owner}}/
+    {{~/if}}
+    {{~@root.repository}}
+  {{~else}}
+    {{~@root.repoUrl}}
+  {{~/if~}}
+  /compare/{{previousTag}}...{{currentTag}})
+{{~else}}
+  {{~version}}
+{{~/if}}
+{{~#if title}} "{{title}}"
+{{~/if}}
+{{~#if date}} ({{date}})
+{{/if}}

.releaserc/template.hbs

@@ -0,0 +1,14 @@
+{{> header}}
+
+{{#each commitGroups}}
+
+{{#if title}}
+### {{title}}
+
+{{/if}}
+{{#each commits}}
+{{> commit root=@root}}
+{{/each}}
+{{/each}}
+
+{{> footer}}