Integrate selected builds with candidate workflows

cmd/releasekit/internal/cli/config.go

@@ -16,7 +16,7 @@ import (
 	"gitea.maximumdirect.net/eric/ReleaseKit/internal/process"
 )
 
-const Usage = "usage: releasekit version\n       releasekit check [--repo DIR] [--config FILE] VERSION\n       releasekit publish [--repo DIR] [--config FILE] VERSION"
+const Usage = "usage: releasekit version\n       releasekit check [--repo DIR] [--config FILE] VERSION\n       releasekit publish [--repo DIR] [--config FILE] VERSION\n       releasekit build [--repo DIR] [--config FILE] [--output DIR] VERSION"
 
 type Command string
 
@@ -24,6 +24,7 @@ const (
 	VersionCommand Command = "version"
 	CheckAction    Command = "check"
 	PublishAction  Command = "publish"
+	BuildAction    Command = "build"
 )
 
 // Invocation contains parsed command settings owned by the CLI adapter.
@@ -31,6 +32,7 @@ type Invocation struct {
 	Command    Command
 	Repository string
 	ConfigPath string
+	OutputDir  string
 	Version    string
 }
 
@@ -45,19 +47,23 @@ func Parse(args []string) (Invocation, error) {
 			return Invocation{}, errors.New("version takes no arguments")
 		}
 		return Invocation{Command: VersionCommand}, nil
-	case string(CheckAction), string(PublishAction):
+	case string(CheckAction), string(PublishAction), string(BuildAction):
 		action := Command(args[0])
 		flags := flag.NewFlagSet(string(action), flag.ContinueOnError)
 		flags.SetOutput(io.Discard)
 		repository := flags.String("repo", ".", "repository directory")
 		configPath := flags.String("config", "", "profile path")
+		var outputDir string
+		if action == BuildAction {
+			flags.StringVar(&outputDir, "output", "", "build output directory")
+		}
 		if err := flags.Parse(args[1:]); err != nil {
 			return Invocation{}, err
 		}
 		if flags.NArg() != 1 {
 			return Invocation{}, fmt.Errorf("%s requires one version argument", action)
 		}
-		return Invocation{Command: action, Repository: *repository, ConfigPath: *configPath, Version: flags.Arg(0)}, nil
+		return Invocation{Command: action, Repository: *repository, ConfigPath: *configPath, OutputDir: outputDir, Version: flags.Arg(0)}, nil
 	default:
 		return Invocation{}, fmt.Errorf("unknown command %q", args[0])
 	}
@@ -75,6 +81,14 @@ type Settings struct {
 	Product string         `json:"product"`
 	Remote  string         `json:"remote,omitempty"`
 	Checks  []CheckCommand `json:"checks,omitempty"`
+	Build   *BuildSettings `json:"build,omitempty"`
+}
+
+// BuildSettings selects the Go application package, artifact name, and targets.
+type BuildSettings struct {
+	MainPackage string   `json:"main_package,omitempty"`
+	BinaryName  string   `json:"binary_name,omitempty"`
+	Targets     []string `json:"targets,omitempty"`
 }
 
 // LoadSettings reads a profile path relative to repoDir unless it is absolute.
@@ -122,6 +136,31 @@ func LoadSettings(repoDir, configPath string) (Settings, error) {
 			return Settings{}, fmt.Errorf("profile %q: checks[%d].args must include a command", configPath, i)
 		}
 	}
+	if settings.Build != nil {
+		if len(settings.Build.Targets) != 0 {
+			if strings.TrimSpace(settings.Build.MainPackage) == "" {
+				return Settings{}, fmt.Errorf("profile %q: build.main_package is required when targets are selected", configPath)
+			}
+			if strings.TrimSpace(settings.Build.BinaryName) == "" {
+				return Settings{}, fmt.Errorf("profile %q: build.binary_name is required when targets are selected", configPath)
+			}
+			if strings.ContainsAny(settings.Build.BinaryName, "/\\\r\n") {
+				return Settings{}, fmt.Errorf("profile %q: build.binary_name must be a filename component", configPath)
+			}
+		}
+		for i, target := range settings.Build.Targets {
+			if strings.Count(target, "/") != 1 {
+				return Settings{}, fmt.Errorf("profile %q: build.targets[%d] must be GOOS/GOARCH", configPath, i)
+			}
+			goos, goarch, _ := strings.Cut(target, "/")
+			if strings.TrimSpace(goos) == "" || strings.TrimSpace(goarch) == "" {
+				return Settings{}, fmt.Errorf("profile %q: build.targets[%d] must be GOOS/GOARCH", configPath, i)
+			}
+			if strings.ContainsAny(goos+goarch, "\\\r\n") {
+				return Settings{}, fmt.Errorf("profile %q: build.targets[%d] contains an unsafe filename component", configPath, i)
+			}
+		}
+	}
 	return settings, nil
 }