ci: release

.github/workflows/release.yaml

@@ -0,0 +1,15 @@
+name: Release
+
+on:
+  push:
+
+jobs:
+  check:
+    runs-on: ubuntu-24.04-arm
+    steps:
+      - uses: earthbuild/actions-setup@main
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Check
+        run: earthly --ci +check

Earthfile

@@ -0,0 +1,24 @@
+VERSION 0.8
+FROM homebrew/brew:4.6.20
+ENV HOMEBREW_NO_AUTO_UPDATE=1
+WORKDIR /home/linuxbrew/earthbuild-tap
+RUN brew developer on
+
+src:
+    COPY --dir .git Formula .
+    RUN brew tap EarthBuild/tap .
+
+# lint verify the formula for code quality
+lint:
+    BUILD +audit
+    BUILD +style
+
+# audit the formula
+audit:
+    FROM +src
+    RUN brew audit --new --signing --debug --audit-debug EarthBuild/tap/earth
+
+# style check the formula
+style:
+    FROM +src
+    RUN brew style --verbose --debug EarthBuild/tap/earth

Formula/earth.rb

@@ -1,44 +1,57 @@
 class Earth < Formula
-  desc "Build automation tool for the container era"
-  homepage "https://github.com/earthbuild"
-  url "https://github.com/EarthBuild/earthbuild.git",
-    tag: "v0.8.17",
-      revision: "52f2da6dd7f3de24a60a76e00044ec560b0ea407"
-  license "MPL-2.0"
-  head "https://github.com/EarthBuild/earthbuild.git", branch: "main"
+  desc 'Build automation tool for the container era'
+  homepage 'https://github.com/earthbuild'
+  url 'https://github.com/EarthBuild/earthbuild.git',
+      tag: 'v0.8.17-rc-0',
+      revision: '52f2da6dd7f3de24a60a76e00044ec560b0ea407'
+  license 'MPL-2.0'
+  head 'https://github.com/EarthBuild/earthbuild.git', branch: 'main'
 
   bottle do
-    sha256 cellar: :any_skip_relocation, arm64_tahoe: "194e4b767c3d1a551453ceb3739345c84de89533768b352e3b339d116497a238"
+    sha256 cellar: :any_skip_relocation,
+           arm64_tahoe: '194e4b767c3d1a551453ceb3739345c84de89533768b352e3b339d116497a238'
+    sha256 cellar: :any_skip_relocation,
+           arm64_linux: 'f7f743e111f7791301299c304b27fa1d4eda0a48b150c6270374fb360ee29b5b'
+    sha256 cellar: :any_skip_relocation,
+           x86_64_linux: '8eba8b430051d74be92b403116c7e510225bcc3a94fb8fec7f836f2959dd4227'
   end
 
-  depends_on "go" => :build
+  depends_on 'go' => :build
 
   def install
-    ENV["CGO_ENABLED"] = "0"
+    ENV['CGO_ENABLED'] = '0'
     ldflags = %W[
       -s -w
-      -X main.DefaultBuildkitdImage=docker.io/earthly/buildkitd:v0.8.16
+      -X main.DefaultBuildkitdImage=docker.io/earthbuild/buildkitd:v0.8.17-rc-0
       -X main.Version=v#{version}
       -X main.GitSha=#{Utils.git_head}
       -X main.BuiltBy=homebrew-earthbuild
     ]
-    tags = "dfrunmount dfrunsecurity dfsecrets dfssh dfrunnetwork dfheredoc forceposix"
-    system "go", "build", "-tags", tags, *std_go_args(ldflags: ldflags, output: bin/"earth"), "./cmd/earthly"
+    tags = 'dfrunmount dfrunsecurity dfsecrets dfssh dfrunnetwork dfheredoc forceposix'
+    system 'go', 'build', '-tags', tags, *std_go_args(ldflags: ldflags, output: bin / 'earth'), './cmd/earthly'
 
-    bin.install_symlink "earth" => "earthly"
+    bin.install_symlink 'earth' => 'earthly'
 
-    generate_completions_from_executable(bin/"earth", "bootstrap", "--source", shells: [:bash, :zsh])
+    generate_completions_from_executable(bin / 'earth', 'bootstrap', '--source', shells: %i[bash zsh])
+  end
+
+  def caveats
+    <<~EOS
+      EarthBuild requires a container runtime to function.
+      If you don't have one, you can install Docker or Podman:
+        brew install --cask docker
+        OR
+        brew install podman
+    EOS
   end
 
   test do
-    # earthbuild requires docker to run; therefore doing a complete end-to-end test here is not
-    # possible; however the "earthbuild ls" command is able to run without docker.
-    (testpath/"Earthfile").write <<~EOS
+    (testpath / 'Earthfile').write <<~EOS
       VERSION 0.8
       mytesttarget:
       \tRUN echo Homebrew
     EOS
-    output = shell_output("#{bin}/earthly ls")
-    assert_match "+mytesttarget", output
+    output = shell_output("#{bin}/earth ls")
+    assert_match '+mytesttarget', output
   end
 end