feat: add config command to display current configuration and enhance Makefile targets

Author: gambitier

Makefile

@@ -12,7 +12,7 @@ LDFLAGS=-ldflags "-s -w"
 .PHONY: all build clean run list test help
 
 # Default target
-all: build
+.DEFAULT_GOAL := help
 
 # Build the application
 build:
@@ -27,10 +27,20 @@ run: build
 	@$(BUILD_DIR)/$(BINARY_NAME) update $(ARGS)
 
 # List discovered packages
-list: build
+list:
 	@echo "Discovering Go packages..."
 	@$(BUILD_DIR)/$(BINARY_NAME) list
 
+# List packages with verbose output
+list-verbose: build
+	@echo "Discovering Go packages (verbose)..."
+	@$(BUILD_DIR)/$(BINARY_NAME) list --verbose
+
+# Show current configuration
+config:
+	@echo "Showing current configuration..."
+	@$(BUILD_DIR)/$(BINARY_NAME) config
+
 # Clean build artifacts
 clean:
 	@echo "Cleaning build artifacts..."
@@ -53,15 +63,19 @@ test:
 # Show help
 help:
 	@echo "Available targets:"
-	@echo "  build   - Build the application"
-	@echo "  run     - Build and run the application (update command)"
-	@echo "  list    - Build and list discovered packages"
-	@echo "  clean   - Clean build artifacts"
-	@echo "  deps    - Install dependencies"
-	@echo "  test    - Run tests"
-	@echo "  help    - Show this help message"
+	@echo "  build         - Build the application"
+	@echo "  run           - Build and run the application (update command)"
+	@echo "  list          - Build and list discovered packages"
+	@echo "  list-verbose  - Build and list packages with full details"
+	@echo "  config        - Show current configuration"
+	@echo "  clean         - Clean build artifacts"
+	@echo "  deps          - Install dependencies"
+	@echo "  test          - Run tests"
+	@echo "  help          - Show this help message"
 	@echo ""
 	@echo "Usage examples:"
 	@echo "  make run                    # Interactive tag update"
 	@echo "  make list                   # List discovered packages"
-	@echo "  make run ARGS=\"\"            # Same as make run"
+	@echo "  make list-verbose           # List with full details"
+	@echo "  make config                 # Show current configuration"
+	@echo "  make run ARGS=\"\"          # Same as make run"

cmd/config.go

@@ -0,0 +1,84 @@
+package cmd
+
+import (
+	"os"
+
+	"github.com/fatih/color"
+	"github.com/gambitier/tag-manager/pkg/config"
+	"github.com/spf13/cobra"
+)
+
+var configCmd = &cobra.Command{
+	Use:   "config",
+	Short: "Show current configuration",
+	Long:  `Display the current tag-manager configuration including file location and package settings.`,
+	RunE:  runConfig,
+}
+
+func runConfig(cmd *cobra.Command, args []string) error {
+	// Get config path
+	configPath := config.GetConfigPath()
+
+	// Check if config file exists
+	exists := true
+	if _, err := os.Stat(configPath); os.IsNotExist(err) {
+		exists = false
+	}
+
+	// Display config file location
+	color.Cyan("=== Tag Manager Configuration ===")
+	color.White("Config file: %s", configPath)
+	if exists {
+		color.Green("Status: ✓ Found")
+	} else {
+		color.Yellow("Status: ✗ Not found (will be created on first use)")
+	}
+	color.White("")
+
+	// Load and display configuration
+	cfg, err := config.LoadConfig(configPath)
+	if err != nil {
+		if exists {
+			color.Red("Error loading configuration: %v", err)
+			return nil
+		}
+		// If file doesn't exist, show default config
+		color.Yellow("No configuration file found. Here are the defaults:")
+		color.White("")
+
+		// Show default configuration
+		color.Cyan("Default Tag Format: %s", config.GetDefaultConfig().Defaults.TagFormat)
+		color.White("")
+		color.White("Configuration will be created automatically when you:")
+		color.White("  • Run 'tag-manager update' for the first time")
+		color.White("  • Configure a package's tag format")
+		return nil
+	}
+
+	// Display current configuration
+	color.Cyan("Current Configuration:")
+	color.White("")
+
+	// Show default tag format
+	color.Cyan("Default Tag Format: %s", cfg.Defaults.TagFormat)
+	color.White("")
+
+	// Show configured packages
+	if len(cfg.Packages) == 0 {
+		color.Yellow("No packages configured yet.")
+		color.White("Packages will be configured automatically when you run 'tag-manager update'.")
+	} else {
+		color.Cyan("Configured Packages (%d):", len(cfg.Packages))
+		for modulePath, pkgConfig := range cfg.Packages {
+			color.White("")
+			color.White("  Package: %s", modulePath)
+			color.White("    Tag Format: %s", pkgConfig.TagFormat)
+			color.White("    Use Default: %t", pkgConfig.UseDefault)
+			if pkgConfig.LastUpdated != "" {
+				color.White("    Last Updated: %s", pkgConfig.LastUpdated)
+			}
+		}
+	}
+
+	return nil
+}

cmd/root.go

@@ -27,4 +27,5 @@ func init() {
 	// Add subcommands
 	rootCmd.AddCommand(updateCmd)
 	rootCmd.AddCommand(listCmd)
+	rootCmd.AddCommand(configCmd)
 }

pkg/config/config.go

@@ -101,6 +101,16 @@ func GetConfigPath() string {
 	return filepath.Join(homeDir, ".tag-manager.yaml")
 }
 
+// GetDefaultConfig returns the default configuration
+func GetDefaultConfig() *Config {
+	return &Config{
+		Packages: make(map[string]PackageConfig),
+		Defaults: DefaultConfig{
+			TagFormat: "{package-name}/v{major}.{minor}.{patch}",
+		},
+	}
+}
+
 // GetPackageConfig returns configuration for a specific package
 func (c *Config) GetPackageConfig(modulePath string) PackageConfig {
 	if pkg, exists := c.Packages[modulePath]; exists {