esync

Directory watching and remote syncing
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edit.go (2329B)

      1 package cmd
      2 
      3 import (
      4 	"bufio"
      5 	"fmt"
      6 	"os"
      7 	"os/exec"
      8 	"strings"
      9 
     10 	"github.com/spf13/cobra"
     11 
     12 	"github.com/louloulibs/esync/internal/config"
     13 )
     14 
     15 // ---------------------------------------------------------------------------
     16 // Command
     17 // ---------------------------------------------------------------------------
     18 
     19 var editCmd = &cobra.Command{
     20 	Use:   "edit",
     21 	Short: "Open config in $EDITOR, then validate and preview",
     22 	Long:  "Open the esync configuration file in your editor. After saving, the config is validated and a file preview is shown.",
     23 	RunE:  runEdit,
     24 }
     25 
     26 func init() {
     27 	rootCmd.AddCommand(editCmd)
     28 }
     29 
     30 // ---------------------------------------------------------------------------
     31 // Run
     32 // ---------------------------------------------------------------------------
     33 
     34 func runEdit(cmd *cobra.Command, args []string) error {
     35 	// 1. Find config file
     36 	path := cfgFile
     37 	if path == "" {
     38 		path = config.FindConfigFile()
     39 	}
     40 	if path == "" {
     41 		fmt.Fprintln(os.Stderr, "No config file found. Run `esync init` first to create one.")
     42 		return nil
     43 	}
     44 
     45 	// 2. Determine editor
     46 	editor := os.Getenv("EDITOR")
     47 	if editor == "" {
     48 		editor = "vi"
     49 	}
     50 
     51 	reader := bufio.NewReader(os.Stdin)
     52 
     53 	// 3. Edit loop
     54 	for {
     55 		// Open editor
     56 		editorCmd := exec.Command(editor, path)
     57 		editorCmd.Stdin = os.Stdin
     58 		editorCmd.Stdout = os.Stdout
     59 		editorCmd.Stderr = os.Stderr
     60 
     61 		if err := editorCmd.Run(); err != nil {
     62 			return fmt.Errorf("editor exited with error: %w", err)
     63 		}
     64 
     65 		// Validate config
     66 		cfg, err := config.Load(path)
     67 		if err != nil {
     68 			fmt.Fprintf(os.Stderr, "\nConfig error: %s\n", err)
     69 			fmt.Print("Press 'e' to edit again, or 'q' to cancel: ")
     70 			answer, _ := reader.ReadString('\n')
     71 			answer = strings.TrimSpace(strings.ToLower(answer))
     72 			if answer == "q" {
     73 				fmt.Println("Cancelled.")
     74 				return nil
     75 			}
     76 			continue
     77 		}
     78 
     79 		// Valid config — show preview
     80 		if err := printPreview(cfg); err != nil {
     81 			return err
     82 		}
     83 
     84 		// Ask user what to do
     85 		fmt.Print("Press Enter to accept, 'e' to edit again, or 'q' to cancel: ")
     86 		answer, _ := reader.ReadString('\n')
     87 		answer = strings.TrimSpace(strings.ToLower(answer))
     88 
     89 		switch answer {
     90 		case "q":
     91 			fmt.Println("Cancelled.")
     92 			return nil
     93 		case "e":
     94 			continue
     95 		default:
     96 			// Enter or anything else: accept
     97 			fmt.Println("Config saved.")
     98 			return nil
     99 		}
    100 	}
    101 }