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main.go
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main.go
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package main
import (
"flag"
"io/ioutil"
"path"
"github.com/jayacarlson/dbg"
"github.com/jayacarlson/mp3"
"github.com/jayacarlson/pth"
)
var (
dprog, fprog bool
)
func init() {
flag.BoolVar(&dprog, "d", false, "Show progress by outputing directory")
flag.BoolVar(&fprog, "f", false, "Show progress by outputing file")
}
func processDir(srcPath string, recurse bool, dirHandler func(string) error, filHandler func(string) error) error {
if !pth.Exists(srcPath) {
return pth.Err_NotExist
}
if dprog {
dbg.Info("processing: %s", srcPath)
}
entries, err := ioutil.ReadDir(srcPath)
err = pth.ChkFileErr(err)
if nil != err {
return err
}
for _, entry := range entries {
if !entry.Mode().IsDir() && (nil != filHandler) {
err = filHandler(path.Join(srcPath, entry.Name()))
err = pth.ChkFileErr(err)
if nil != err {
return err
}
continue
}
if entry.Mode().IsDir() {
if nil != dirHandler {
err = dirHandler(path.Join(srcPath, entry.Name()))
if nil != err {
return err
}
}
if recurse {
err = processDir(path.Join(srcPath, entry.Name()), recurse, dirHandler, filHandler)
if nil != err {
return err
}
}
}
}
return nil
}
func fileHandler(path string) error {
_, _, ext := pth.Split(path)
if fprog {
dbg.Echo("checking: %s", path)
}
if ".mp3" != ext {
return nil
}
m, err := mp3.OpenMP3File(path)
if nil != err {
dbg.Error("ERR: %v for file `%s`", err, path)
return nil
}
defer m.Close()
err = m.ValidateID3v2File()
if nil != err {
dbg.Error("ERR: %v for file `%s`", err, path)
return nil
}
verMajor, _ := m.ID3v2Version()
if !(2 <= verMajor && 4 >= verMajor) {
dbg.Error("ERR: %v for file `%s`", mp3.Err_UnknownID3v2Version, path)
return nil
}
if 2 == verMajor {
dbg.Error("ERR: %v for file `%s`", mp3.Err_ObsoleteID3v2Version, path)
return nil
}
for {
frm, err := m.ReadID3v2Frame()
if mp3.Err_EOF == err {
return nil
}
if nil != err {
dbg.Error("ERR: %v", err)
return nil
}
_, err = frm.ToString()
if nil != err {
dbg.Error("ERR: %v", err)
return nil
}
}
return nil
}
func main() {
flag.Parse()
dirs := flag.Args()
if len(dirs) == 0 {
dbg.Fatal("Must supply dir to validate")
}
for _, dir := range dirs {
err := processDir(pth.AsRealPath(dir), true, nil, fileHandler)
if nil != err {
return
}
}
}