setup release please (#37)

.github/.release-please-manifest.json

@@ -0,0 +1,3 @@
+{
+  ".": "0.0.1"
+}

.github/release-please-config.json

@@ -0,0 +1,65 @@
+{
+  "bootstrap-sha": "06044867da1edbac03aca0fd58cd40de6abe6a77",
+  "packages": {
+    ".": {
+      "release-type": "ruby",
+      "changelog-path": "CHANGELOG.md",
+      "bump-minor-pre-major": true,
+      "bump-patch-for-minor-pre-major": true,
+      "draft": false,
+      "prerelease": false,
+      "include-v-in-tag": false,
+      "changelog-sections": [
+        {
+          "type": "feat",
+          "section": "Features"
+        },
+        {
+          "type": "feature",
+          "section": "Features"
+        },
+        {
+          "type": "fix",
+          "section": "Bug Fixes"
+        },
+        {
+          "type": "perf",
+          "section": "Performance Improvements"
+        },
+        {
+          "type": "revert",
+          "section": "Reverts"
+        },
+        {
+          "type": "docs",
+          "section": "Documentation"
+        },
+        {
+          "type": "style",
+          "section": "Styles"
+        },
+        {
+          "type": "chore",
+          "section": "Miscellaneous Chores"
+        },
+        {
+          "type": "refactor",
+          "section": "Code Refactoring"
+        },
+        {
+          "type": "test",
+          "section": "Tests"
+        },
+        {
+          "type": "build",
+          "section": "Build System"
+        },
+        {
+          "type": "ci",
+          "section": "Continuous Integration"
+        }
+      ]
+    }
+  },
+  "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json"
+}

.github/workflows/ci.yml

@@ -1,6 +1,25 @@
 name: CI
 on: push
 jobs:
+  release-please:
+    name: Release Please
+    runs-on: ubuntu-latest
+    if: github.ref == 'refs/heads/main'
+    outputs:
+      release_created: ${{ steps.release-please.outputs.release_created }}
+      tag_name: ${{ steps.release-please.outputs.tag_name }} # e.g. v1.0.0
+      version: ${{ steps.release-please.outputs.version }} # e.g. 1.0.0
+    steps:
+      - uses: tibdex/github-app-token@v1
+        id: generate-github-token
+        with:
+          app_id: ${{ vars.RELEASE_PLEASE_GITHUB_APP_ID }}
+          private_key: ${{ secrets.RELEASE_PLEASE_GITHUB_APP_PRIVATE_KEY }}
+      - uses: krystal/release-please-manifest-action@v1
+        id: release-please
+        with:
+          token: ${{ steps.generate-github-token.outputs.token }}
+
   lint:
     runs-on: ubuntu-latest
     steps: