Release workflow for shp CLI

- Use gorelease to create binaries for windows, linux, and macOS on
  amd64 and arm64.
- Run workflow whenever a semantic version tag is created.

Author: akram

.github/workflows/release.yml

@@ -0,0 +1,26 @@
+---
+name: Release
+on:
+  push:
+    tags:
+      - 'v*'
+jobs:
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+    - name: Set up Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.17.x
+    - name: Run GoReleaser
+      uses: goreleaser/goreleaser-action@v2
+      with:
+        version: latest
+        args: release --rm-dist
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -2,3 +2,4 @@ _output/
 /shp
 /shp-*
 /bin/*
+dist/

.goreleaser.yml

@@ -0,0 +1,28 @@
+before:
+  hooks:
+  - go generate ./...
+builds:
+- env:
+  - CGO_ENABLED=0
+  goos:
+  - linux
+  - darwin
+  - windows
+  goarch:
+  - amd64
+  - arm64
+  main: ./cmd/shp/main.go
+archives:
+- replacements:
+    darwin: macOS
+    amd64: x86_64
+checksum:
+  name_template: 'checksums.txt'
+snapshot:
+  name_template: "{{ incpatch .Version }}-next"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+    - '^docs:'
+    - '^test:'