kamal/test/cli/build_test.rb

require_relative "cli_test_case"

class CliBuildTest < CliTestCase
  test "deliver" do
    Kamal::Cli::Build.any_instance.expects(:push)
    Kamal::Cli::Build.any_instance.expects(:pull)

    run_command("deliver")
  end

  test "push" do
    with_build_directory do
      Kamal::Commands::Hook.any_instance.stubs(:hook_exists?).returns(true)
      hook_variables = { version: 999, service_version: "app@999", hosts: "1.1.1.1,1.1.1.2,1.1.1.3,1.1.1.4", command: "build", subcommand: "push" }

      run_command("push", "--verbose").tap do |output|
        assert_hook_ran "pre-build", output, **hook_variables
        assert_match /Cloning repo into build directory/, output
        assert_match /git -C #{Dir.tmpdir}\/kamal-clones\/app-#{pwd_sha} clone #{Dir.pwd}/, output
        assert_match /docker --version && docker buildx version/, output
        assert_match /docker buildx build --push --platform linux\/amd64,linux\/arm64 --builder kamal-app-multiarch -t dhh\/app:999 -t dhh\/app:latest --label service="app" --file Dockerfile \. as .*@localhost/, output
      end
    end
  end

  test "push reseting clone" do
    with_build_directory do
      stub_setup
      build_dir = "#{Dir.tmpdir}/kamal-clones/app-#{pwd_sha}/kamal/"

      SSHKit::Backend::Abstract.any_instance.stubs(:execute).with(:docker, "--version", "&&", :docker, :buildx, "version")
      SSHKit::Backend::Abstract.any_instance.stubs(:execute).with(:docker, :buildx, :create, "--use", "--name", "kamal-app-multiarch")

      SSHKit::Backend::Abstract.any_instance.stubs(:execute).with(:mkdir, "-p", "#{Dir.tmpdir}/kamal-clones/app-#{pwd_sha}")
      SSHKit::Backend::Abstract.any_instance.stubs(:execute)
        .with(:git, "-C", "#{Dir.tmpdir}/kamal-clones/app-#{pwd_sha}", :clone, Dir.pwd)
        .raises(SSHKit::Command::Failed.new("fatal: destination path 'kamal' already exists and is not an empty directory"))
        .then
        .returns(true)
      SSHKit::Backend::Abstract.any_instance.stubs(:execute).with(:git, "-C", build_dir, :remote, "set-url", :origin, Dir.pwd)
      SSHKit::Backend::Abstract.any_instance.stubs(:execute).with(:git, "-C", build_dir, :fetch, :origin)
      SSHKit::Backend::Abstract.any_instance.stubs(:execute).with(:git, "-C", build_dir, :reset, "--hard", Kamal::Git.revision)
      SSHKit::Backend::Abstract.any_instance.stubs(:execute).with(:git, "-C", build_dir, :clean, "-fdx")

      SSHKit::Backend::Abstract.any_instance.stubs(:execute)
        .with(:docker, :buildx, :build, "--push", "--platform", "linux/amd64,linux/arm64", "--builder", "kamal-app-multiarch", "-t", "dhh/app:999", "-t", "dhh/app:latest", "--label", "service=\"app\"", "--file", "Dockerfile", ".")

      run_command("push", "--verbose").tap do |output|
        assert_match /Cloning repo into build directory/, output
        assert_match /Resetting local clone/, output
      end
    end
  end

  test "push without clone" do
    Kamal::Commands::Hook.any_instance.stubs(:hook_exists?).returns(true)
    hook_variables = { version: 999, service_version: "app@999", hosts: "1.1.1.1,1.1.1.2,1.1.1.3,1.1.1.4", command: "build", subcommand: "push" }

    run_command("push", "--verbose", fixture: :without_clone).tap do |output|
      assert_no_match /Cloning repo into build directory/, output
      assert_hook_ran "pre-build", output, **hook_variables
      assert_match /docker --version && docker buildx version/, output
      assert_match /docker buildx build --push --platform linux\/amd64,linux\/arm64 --builder kamal-app-multiarch -t dhh\/app:999 -t dhh\/app:latest --label service="app" --file Dockerfile . as .*@localhost/, output
    end
  end

  test "push without builder" do
    with_build_directory do
      stub_setup

      SSHKit::Backend::Abstract.any_instance.stubs(:execute)
        .with(:docker, "--version", "&&", :docker, :buildx, "version")

      SSHKit::Backend::Abstract.any_instance.stubs(:execute)
        .with(:docker, :buildx, :create, "--use", "--name", "kamal-app-multiarch")

      SSHKit::Backend::Abstract.any_instance.stubs(:execute)
        .with { |*args| args[0..1] == [ :docker, :buildx ] }
        .raises(SSHKit::Command::Failed.new("no builder"))
        .then
        .returns(true)

      SSHKit::Backend::Abstract.any_instance.stubs(:execute).with { |*args| args.first.start_with?("git") }

      SSHKit::Backend::Abstract.any_instance.stubs(:execute).with(:mkdir, "-p", "#{Dir.tmpdir}/kamal-clones/app-#{pwd_sha}")

      run_command("push").tap do |output|
        assert_match /WARN Missing compatible builder, so creating a new one first/, output
      end
    end
  end

  test "push with no buildx plugin" do
    stub_setup
    SSHKit::Backend::Abstract.any_instance.stubs(:execute)
      .with(:docker, "--version", "&&", :docker, :buildx, "version")
      .raises(SSHKit::Command::Failed.new("no buildx"))

    Kamal::Commands::Builder.any_instance.stubs(:native_and_local?).returns(false)
    assert_raises(Kamal::Cli::Build::BuildError) { run_command("push") }
  end

  test "push pre-build hook failure" do
    fail_hook("pre-build")

    error = assert_raises(Kamal::Cli::HookError) { run_command("push") }
    assert_equal "Hook `pre-build` failed:\nfailed", error.message

    assert @executions.none? { |args| args[0..2] == [ :docker, :buildx, :build ] }
  end

  test "pull" do
    run_command("pull").tap do |output|
      assert_match /docker image rm --force dhh\/app:999/, output
      assert_match /docker pull dhh\/app:999/, output
      assert_match "docker inspect -f '{{ .Config.Labels.service }}' dhh/app:999 | grep -x app || (echo \"Image dhh/app:999 is missing the 'service' label\" && exit 1)", output
    end
  end

  test "create" do
    run_command("create").tap do |output|
      assert_match /docker buildx create --use --name kamal-app-multiarch/, output
    end
  end

  test "create remote" do
    run_command("create", fixture: :with_remote_builder).tap do |output|
      assert_match "Running /usr/bin/env true on 1.1.1.5", output
      assert_match "docker context create kamal-app-native-remote-amd64 --description 'kamal-app-native-remote amd64 native host' --docker 'host=ssh://app@1.1.1.5'", output
      assert_match "docker buildx create --name kamal-app-native-remote kamal-app-native-remote-amd64 --platform linux/amd64", output
    end
  end

  test "create with error" do
    stub_setup
    SSHKit::Backend::Abstract.any_instance.stubs(:execute)
      .with { |arg| arg == :docker }
      .raises(SSHKit::Command::Failed.new("stderr=error"))

    run_command("create").tap do |output|
      assert_match /Couldn't create remote builder: error/, output
    end
  end

  test "remove" do
    run_command("remove").tap do |output|
      assert_match /docker buildx rm kamal-app-multiarch/, output
    end
  end

  test "details" do
    SSHKit::Backend::Abstract.any_instance.stubs(:capture)
      .with(:docker, :context, :ls, "&&", :docker, :buildx, :ls)
      .returns("docker builder info")

    run_command("details").tap do |output|
      assert_match /Builder: multiarch/, output
      assert_match /docker builder info/, output
    end
  end

  private
    def run_command(*command, fixture: :with_accessories)
      stdouted { Kamal::Cli::Build.start([ *command, "-c", "test/fixtures/deploy_#{fixture}.yml" ]) }
    end

    def stub_dependency_checks
      SSHKit::Backend::Abstract.any_instance.stubs(:execute)
        .with(:docker, "--version", "&&", :docker, :buildx, "version")
      SSHKit::Backend::Abstract.any_instance.stubs(:execute)
        .with { |*args| args[0..1] == [ :docker, :buildx ] }
    end

    def with_build_directory
      build_directory = File.join Dir.tmpdir, "kamal-clones", "app-#{pwd_sha}", "kamal"
      FileUtils.mkdir_p build_directory
      FileUtils.touch File.join build_directory, "Dockerfile"
      yield
    ensure
      FileUtils.rm_rf build_directory
    end

    def pwd_sha
      Digest::SHA256.hexdigest(Dir.pwd)[0..12]
    end
end