113 lines
2.4 KiB
Go
113 lines
2.4 KiB
Go
package main
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import (
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"bufio"
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"fmt"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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)
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func main() {
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// Check command line arguments
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if len(os.Args) != 2 {
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fmt.Println("Usage: renamedit <directory path>")
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os.Exit(1)
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}
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dirPath := os.Args[1]
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// Check if directory exists
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info, err := os.Stat(dirPath)
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if err != nil {
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fmt.Printf("Error: %v\n", err)
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os.Exit(1)
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}
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if !info.IsDir() {
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fmt.Printf("Error: %s is not a directory\n", dirPath)
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os.Exit(1)
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}
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// Get list of files in the directory
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files, err := os.ReadDir(dirPath)
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if err != nil {
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fmt.Printf("Error reading directory: %v\n", err)
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os.Exit(1)
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}
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// Create temporary file
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tmpFile, err := os.CreateTemp("", "rename-*.txt")
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if err != nil {
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fmt.Printf("Error creating temporary file: %v\n", err)
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os.Exit(1)
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}
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defer os.Remove(tmpFile.Name())
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// Write filenames to temporary file
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fileNames := make([]string, 0)
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for _, file := range files {
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if !file.IsDir() {
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fileName := file.Name()
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fileNames = append(fileNames, fileName)
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tmpFile.WriteString(fileName + "\n")
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}
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}
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tmpFile.Close()
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// Open temporary file with editor
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editor := os.Getenv("EDITOR")
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if editor == "" {
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editor = "vim" // Default editor
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}
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cmd := exec.Command(editor, tmpFile.Name())
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cmd.Stdin = os.Stdin
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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err = cmd.Run()
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if err != nil {
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fmt.Printf("Editor error: %v\n", err)
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os.Exit(1)
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}
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// Read edited file
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content, err := os.ReadFile(tmpFile.Name())
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if err != nil {
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fmt.Printf("Error reading temporary file: %v\n", err)
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os.Exit(1)
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}
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// Parse new filenames
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scanner := bufio.NewScanner(strings.NewReader(string(content)))
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var newFileNames []string
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for scanner.Scan() {
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line := strings.TrimSpace(scanner.Text())
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if line != "" {
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newFileNames = append(newFileNames, line)
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}
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}
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// Check if the number of files matches
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if len(newFileNames) != len(fileNames) {
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fmt.Println("Error: Number of new and old filenames doesn't match")
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os.Exit(1)
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}
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// Perform renaming
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for i, oldName := range fileNames {
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newName := newFileNames[i]
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if oldName != newName {
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oldPath := filepath.Join(dirPath, oldName)
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newPath := filepath.Join(dirPath, newName)
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err := os.Rename(oldPath, newPath)
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if err != nil {
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fmt.Printf("Failed to rename %s to %s: %v\n", oldName, newName, err)
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} else {
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fmt.Printf("Renamed: %s -> %s\n", oldName, newName)
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}
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}
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}
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}
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