Integrate selected builds with candidate workflows

cmd/releasekit/internal/cli/config_test.go

@@ -33,6 +33,13 @@ func TestParse(t *testing.T) {
 	if publish.Command != PublishAction || publish.Repository != "candidate" || publish.ConfigPath != "releasekit.json" || publish.Version != "v1.2.4" {
 		t.Fatalf("Parse(publish) = %#v", publish)
 	}
+	build, err := Parse([]string{"build", "--repo", "candidate", "--config", "releasekit.json", "--output", "output with spaces", "v1.2.5"})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if build.Command != BuildAction || build.Repository != "candidate" || build.ConfigPath != "releasekit.json" || build.OutputDir != "output with spaces" || build.Version != "v1.2.5" {
+		t.Fatalf("Parse(build) = %#v", build)
+	}
 	if _, err := Parse([]string{"check", "v1.2.3", "--repo", "repository"}); err == nil {
 		t.Fatal("Parse accepted a flag after the version")
 	}
@@ -121,6 +128,32 @@ func TestExampleProfileLoads(t *testing.T) {
 	}
 }
 
+func TestBuildProfileLoads(t *testing.T) {
+	repoDir := t.TempDir()
+	path := filepath.Join(repoDir, "profile.json")
+	if err := os.WriteFile(path, []byte(`{"product":"Example","build":{"main_package":"./cmd/app","binary_name":"example","targets":["linux/amd64","darwin/arm64"]}}`), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	settings, err := LoadSettings(repoDir, path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if settings.Build == nil || settings.Build.MainPackage != "./cmd/app" || settings.Build.BinaryName != "example" || len(settings.Build.Targets) != 2 {
+		t.Fatalf("build settings = %#v", settings.Build)
+	}
+	repoDir, err = filepath.Abs(filepath.Join("..", "..", "..", ".."))
+	if err != nil {
+		t.Fatal(err)
+	}
+	example, err := LoadSettings(repoDir, filepath.Join("examples", "releasekit-binary.json"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if example.Build == nil || len(example.Build.Targets) != 3 {
+		t.Fatalf("binary example settings = %#v", example.Build)
+	}
+}
+
 func TestLoadSettingsRejectsInvalidProfiles(t *testing.T) {
 	tests := []struct {
 		name    string
@@ -129,7 +162,9 @@ func TestLoadSettingsRejectsInvalidProfiles(t *testing.T) {
 	}{
 		{name: "missing product", content: `{}`, want: "product is required"},
 		{name: "unknown top-level field", content: `{"product":"Example","delivery":{}}`, want: "unknown field"},
-		{name: "unsupported build field", content: `{"product":"Example","build":{}}`, want: "unknown field"},
+		{name: "build package required", content: `{"product":"Example","build":{"binary_name":"example","targets":["linux/amd64"]}}`, want: "build.main_package is required"},
+		{name: "build target format", content: `{"product":"Example","build":{"main_package":".","binary_name":"example","targets":["linux"]}}`, want: "must be GOOS/GOARCH"},
+		{name: "unsafe binary name", content: `{"product":"Example","build":{"main_package":".","binary_name":"../example","targets":["linux/amd64"]}}`, want: "filename component"},
 		{name: "unknown command field", content: `{"product":"Example","checks":[{"args":["true"],"shell":true}]}`, want: "unknown field"},
 		{name: "command is required", content: `{"product":"Example","checks":[{"args":[]}]}`, want: "must include a command"},
 		{name: "multiple JSON values", content: `{"product":"Example"}{"product":"Other"}`, want: "multiple JSON values"},