introduce Songmu/tagpr

.github/workflows/tagpr-release.yml

@@ -0,0 +1,43 @@
+name: tagpr and release
+on:
+  push:
+    branches: ["main"]
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: "release tag"
+        required: false
+        type: string
+
+permissions:
+  pull-requests: write
+  packages: write
+  contents: write
+  actions: write
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ inputs.tag || github.ref }}
+      - uses: Songmu/tagpr@v1
+        id: tagpr
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        if: ${{ github.event_name != 'workflow_dispatch' }} # skip on workflow_dispatch
+      # after tagpr adds a release tag, or workflow_dispatch, release it
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: "1.23"
+        if: ${{ steps.tagpr.outputs.tag != '' || github.event_name == 'workflow_dispatch' }}
+      - name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v6
+        with:
+          version: '~> v2'
+          args: release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        if: ${{ steps.tagpr.outputs.tag != '' || github.event_name == 'workflow_dispatch' }}