Add show command

pmctl/show.go

@@ -0,0 +1,89 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/spf13/cobra"
+)
+
+func init() {
+	rootCmd.AddCommand(showCmd)
+	showCmd.AddCommand(showCore)
+	showCmd.AddCommand(showApp)
+	showCmd.AddCommand(showNotifier)
+}
+
+var showCmd = &cobra.Command{
+	Use:   "show",
+	Short: "Show the command to run a Portmaster component yourself",
+}
+
+var showCore = &cobra.Command{
+	Use:   "core",
+	Short: "Show command to run the Portmaster Core",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		return show(cmd, &Options{
+			Identifier: "core/portmaster-core",
+		})
+	},
+	FParseErrWhitelist: cobra.FParseErrWhitelist{
+		// UnknownFlags will ignore unknown flags errors and continue parsing rest of the flags
+		UnknownFlags: true,
+	},
+}
+
+var showApp = &cobra.Command{
+	Use:   "app",
+	Short: "Show command to run the Portmaster App",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		return show(cmd, &Options{
+			Identifier: "app/portmaster-app",
+		})
+	},
+	FParseErrWhitelist: cobra.FParseErrWhitelist{
+		// UnknownFlags will ignore unknown flags errors and continue parsing rest of the flags
+		UnknownFlags: true,
+	},
+}
+
+var showNotifier = &cobra.Command{
+	Use:   "notifier",
+	Short: "Show command to run the Portmaster Notifier",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		return show(cmd, &Options{
+			Identifier: "notifier/portmaster-notifier",
+		})
+	},
+	FParseErrWhitelist: cobra.FParseErrWhitelist{
+		// UnknownFlags will ignore unknown flags errors and continue parsing rest of the flags
+		UnknownFlags: true,
+	},
+}
+
+func show(cmd *cobra.Command, opts *Options) error {
+	defer close(programEnded)
+
+	// get original arguments
+	var args []string
+	if len(os.Args) < 4 {
+		return cmd.Help()
+	}
+	args = os.Args[3:]
+
+	// adapt identifier
+	if onWindows {
+		opts.Identifier += ".exe"
+	}
+
+	file, err := getFile(opts)
+	if err != nil {
+		return fmt.Errorf("could not get component: %s", err)
+	}
+
+	fmt.Printf("%s command:\n", logPrefix)
+	fmt.Printf("%s %s\n", file.Path(), strings.Join(args, " "))
+
+	return nil
+}