Releasing with goreleaser (#12)

Releasing with `goreleaser`

.github/workflows/release.yml

@@ -0,0 +1,57 @@
+name: release
+
+on:
+  workflow_dispatch:
+
+  release:
+    types:
+      - published
+
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
+
+permissions:
+  contents: write
+
+jobs:
+  goreleaser:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: '1.20'
+
+      - name: Test Snapshot Release
+        if: github.event_name == 'pull_request' || (github.event_name == 'workflow_dispatch' && github.ref_name != 'master')
+        uses: goreleaser/goreleaser-action@v4
+        with:
+          distribution: goreleaser
+          version: latest
+          args: release --clean --snapshot
+
+      - name: Upload Test Release Assets
+        if: github.event_name == 'pull_request' || (github.event_name == 'workflow_dispatch' && github.ref_name != 'master')
+        uses: actions/upload-artifact@v3
+        with:
+          name: slack-notifier
+          path: dist/*
+          retention-days: 3
+
+      - name: Public Release
+        if: (github.event_name == 'release' && github.event.action == 'published') || (github.event_name == 'workflow_dispatch' && github.ref_name == 'master')
+        uses: goreleaser/goreleaser-action@v4
+        with:
+          distribution: goreleaser
+          version: latest
+          args: release --clean
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -17,3 +17,5 @@ slack-notifier
 *.out
 
 build-harness/
+
+dist/

.goreleaser.yaml

@@ -0,0 +1,35 @@
+before:
+  hooks:
+    - go mod download
+
+builds:
+  - env:
+      - CGO_ENABLED=0
+      - GO111MODULE=on
+    goos:
+      - linux
+      - windows
+      - darwin
+      - freebsd
+      - openbsd
+      - netbsd
+    goarch:
+      - amd64
+      - '386'
+      - arm
+      - arm64
+      - s390x
+
+source:
+  enabled: true
+  name_template: 'sources'
+
+archives:
+  - format: binary
+    name_template: '{{ .ProjectName }}_{{ .Os }}_{{ .Arch }}'
+
+checksum:
+  name_template: 'checksums.txt'
+
+snapshot:
+  name_template: "{{ incpatch .Version }}"