Implement DiffVouch as a standalone Go CLI

.github/workflows/ci.yml

@@ -0,0 +1,52 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-go@v7
+        with:
+          go-version-file: go.mod
+          cache: true
+      - run: go test -race ./...
+      - run: go vet ./...
+      - run: go build -trimpath ./cmd/diffvouch
+
+  cross-build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - goos: linux
+            goarch: amd64
+          - goos: linux
+            goarch: arm64
+          - goos: darwin
+            goarch: amd64
+          - goos: darwin
+            goarch: arm64
+          - goos: windows
+            goarch: amd64
+          - goos: windows
+            goarch: arm64
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-go@v7
+        with:
+          go-version-file: go.mod
+          cache: true
+      - run: go build -trimpath -o /tmp/diffvouch ./cmd/diffvouch
+        env:
+          CGO_ENABLED: 0
+          GOOS: ${{ matrix.goos }}
+          GOARCH: ${{ matrix.goarch }}

.github/workflows/release.yml

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+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+permissions:
+  contents: write
+
+jobs:
+  goreleaser:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-go@v7
+        with:
+          go-version-file: go.mod
+          cache: true
+      - uses: goreleaser/goreleaser-action@v7
+        with:
+          distribution: goreleaser
+          version: latest
+          args: release --clean
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -1,2 +1,5 @@
 __pycache__/
 *.py[cod]
+dist/
+bin/
+coverage.out

.goreleaser.yml

@@ -0,0 +1,42 @@
+version: 2
+
+project_name: diffvouch
+
+builds:
+  - id: diffvouch
+    main: ./cmd/diffvouch
+    binary: diffvouch
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - darwin
+      - linux
+      - windows
+    goarch:
+      - amd64
+      - arm64
+    ldflags:
+      - -s -w -X main.version={{.Version}}
+
+archives:
+  - id: diffvouch
+    ids:
+      - diffvouch
+    formats:
+      - tar.gz
+    format_overrides:
+      - goos: windows
+        formats:
+          - zip
+    name_template: >-
+      {{ .ProjectName }}_{{ .Version }}_{{ .Os }}_{{ .Arch }}
+
+checksum:
+  name_template: checksums.txt
+
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - '^docs:'
+      - '^test:'