Release on Homebrew using GoReleaser (#5)

* Release on Homebrew using GoReleaser

* Add a Build task

.cirrus.yml

@@ -0,0 +1,27 @@
+env:
+  PATH: "$PATH:$HOME/.cargo/bin"
+
+task:
+  name: Build
+  macos_instance:
+    image: ghcr.io/cirruslabs/macos-monterey-xcode:14
+  install_rust_script:
+    - curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+  build_script:
+    - cargo build
+
+task:
+  name: Release
+  only_if: $CIRRUS_TAG != ''
+  macos_instance:
+    image: ghcr.io/cirruslabs/macos-monterey-xcode:14
+  env:
+    GITHUB_TOKEN: ENCRYPTED[!98ace8259c6024da912c14d5a3c5c6aac186890a8d4819fad78f3e0c41a4e0cd3a2537dd6e91493952fb056fa434be7c!]
+    GORELEASER_KEY: ENCRYPTED[!9b80b6ef684ceaf40edd4c7af93014ee156c8aba7e6e5795f41c482729887b5c31f36b651491d790f1f668670888d9fd!]
+  install_rust_script:
+    - curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+  install_goreleaser_script:
+    - brew install go goreleaser/tap/goreleaser-pro
+  build_script:
+    - cargo build --release
+  release_script: goreleaser

.goreleaser.yml

@@ -0,0 +1,32 @@
+project_name: softnet
+
+builds:
+  - builder: prebuilt
+    goos:
+      - darwin
+    goarch:
+      - arm64
+    prebuilt:
+      path: target/release/softnet
+
+archives:
+  - id: binary
+    format: binary
+    name_template: "{{ .ProjectName }}"
+  - id: regular
+    name_template: "{{ .ProjectName }}"
+
+release:
+  prerelease: auto
+
+brews:
+  - name: softnet
+    ids:
+      - regular
+    tap:
+      owner: cirruslabs
+      name: homebrew-cli
+    caveats: See the Github repository for more information
+    homepage: https://github.com/cirruslabs/softnet
+    description: Software networking with isolation for Tart
+    skip_upload: auto