ncmdump-go/main.go

147 lines
3.5 KiB
Go

package main
import (
"fmt"
"github.com/taurusxin/ncmdump-go/ncmcrypt"
"github.com/taurusxin/ncmdump-go/utils"
"os"
"path/filepath"
flag "github.com/spf13/pflag"
)
func processFile(filePath string, outputDir string) error {
// skip if the extension is not .ncm
if filePath[len(filePath)-4:] != ".ncm" {
return nil
}
// process the file
currentFile, err := ncmcrypt.NewNeteaseCloudMusic(filePath)
if err != nil {
utils.ErrorPrintfln("Reading '%s' failed: %s", filePath, err.Error())
return err
}
dump, err := currentFile.Dump(outputDir)
if err != nil {
utils.ErrorPrintfln("Processing '%s' failed: %s", filePath, err.Error())
return err
}
if dump {
metadata, err := currentFile.FixMetadata(true)
if !metadata {
utils.WarningPrintfln("Fix metadata for '%s' failed: %s", filePath, err.Error())
return err
}
utils.DonePrintfln("'%s' -> '%s'", filePath, currentFile.GetDumpFilePath())
}
return nil
}
func main() {
var sourceDir string
var outputDir string
showHelp := flag.BoolP("help", "h", false, "Display help message")
showVersion := flag.BoolP("version", "v", false, "Display version information")
processRecursive := flag.BoolP("recursive", "r", false, "Process all files in the directory recursively")
flag.StringVarP(&outputDir, "output", "o", "", "Output directory for the dump files")
flag.StringVarP(&sourceDir, "dir", "d", "", "Process all files in the directory")
flag.Parse()
if len(os.Args) == 1 {
flag.Usage()
os.Exit(0)
}
if *showHelp {
flag.Usage()
os.Exit(0)
}
if *showVersion {
fmt.Println("ncmdump version 1.7.1")
os.Exit(0)
}
if !flag.Lookup("dir").Changed && sourceDir == "" && len(flag.Args()) == 0 {
flag.Usage()
os.Exit(1)
}
if flag.Lookup("recursive").Changed && !flag.Lookup("dir").Changed {
utils.ErrorPrintfln("The -r option can only be used with the -d option")
os.Exit(1)
}
outputDirSpecified := flag.Lookup("output").Changed
if outputDirSpecified {
if utils.PathExists(outputDir) {
if !utils.IsDir(outputDir) {
utils.ErrorPrintfln("Output directory '%s' is not valid.", outputDir)
os.Exit(1)
}
} else {
_ = os.MkdirAll(outputDir, os.ModePerm)
}
}
if sourceDir != "" {
if !utils.IsDir(sourceDir) {
utils.ErrorPrintfln("The source directory '%s' is not valid.", sourceDir)
os.Exit(1)
}
if *processRecursive {
_ = filepath.WalkDir(sourceDir, func(p string, d os.DirEntry, err_ error) error {
if !outputDirSpecified {
outputDir = sourceDir
}
relativePath := utils.GetRelativePath(sourceDir, p)
destinationPath := filepath.Join(outputDir, relativePath)
if utils.IsRegularFile(p) {
parentDir := filepath.Dir(destinationPath)
_ = os.MkdirAll(parentDir, os.ModePerm)
_ = processFile(p, parentDir)
}
return nil
})
} else {
// dump files in the folder
files, err := os.ReadDir(sourceDir)
if err != nil {
utils.ErrorPrintfln("Unable to read directory: '%s'", sourceDir)
os.Exit(1)
}
for _, file := range files {
if file.IsDir() {
continue
}
filePath := filepath.Join(sourceDir, file.Name())
if outputDirSpecified {
_ = processFile(filePath, outputDir)
} else {
_ = processFile(filePath, sourceDir)
}
}
}
} else {
// process files from args
for _, filePath := range flag.Args() {
// skip if the extension is not .ncm
if filePath[len(filePath)-4:] != ".ncm" {
continue
}
if outputDirSpecified {
_ = processFile(filePath, outputDir)
} else {
_ = processFile(filePath, sourceDir)
}
}
}
}