// checkDirectorySingle is check directory using single goroutine
func checkDirectorySingle(basePath string, extensions []string, ch chan<- string, closeFlg bool) {
// read directory
fis, err := ioutil.ReadDir(basePath)
if err != nil {
//fmt.Printf("error : %s\n", err)
return
}
for _, fi := range fis {
//fmt.Printf("file name is %s\n", fi.Name())
if reg.IsInvisiblefile(fi.Name()) {
continue
}
fullPath := filepath.Join(basePath, fi.Name())
//fmt.Printf("full path is %s\n", fullPath)
if fi.IsDir() {
//fmt.Println("this is directory. skip.")
//check more deep directory
checkDirectorySingle(fullPath, extensions, ch, false)
} else {
for _, ex := range extensions {
//fmt.Printf("search %s from %s\n", ex, fi.Name())
if reg.IsExtFile(fi.Name(), ex) {
ch <- fullPath
}
}
}
}
if closeFlg {
close(ch)
}
}
// checkDirectoryJIC is check directory without goroutine
func checkDirectoryJIC(basePath string, extensions []string) {
// read directory
fis, err := ioutil.ReadDir(basePath)
if err != nil {
//fmt.Printf("error : %s\n", err)
return
}
for _, fi := range fis {
//fmt.Printf("file name is %s\n", fi.Name())
if reg.IsInvisiblefile(fi.Name()) {
continue
}
fullPath := filepath.Join(basePath, fi.Name())
//fmt.Printf("full path is %s\n", fullPath)
if fi.IsDir() {
//fmt.Println("this is directory. skip.")
//check more deep directory
checkDirectoryJIC(fullPath, extensions)
} else {
for _, ex := range extensions {
//fmt.Printf("search %s from %s\n", ex, fi.Name())
if reg.IsExtFile(fi.Name(), ex) {
fileNames = append(fileNames, fullPath)
}
}
}
}
}
// checkDirectory is to check directory using goroutine as semaphore
func checkDirectory(basePath string, extensions []string, ch chan<- string, chSmp chan bool, wg *sync.WaitGroup, closeFlg bool) {
// read directory
fis, err := ioutil.ReadDir(basePath)
if err != nil {
//fmt.Printf("error : %s\n", err)
return
}
for _, fi := range fis {
//fmt.Printf("file name is %s\n", fi.Name())
if reg.IsInvisiblefile(fi.Name()) {
continue
}
fullPath := filepath.Join(basePath, fi.Name())
//fmt.Printf("full path is %s\n", fullPath)
if fi.IsDir() {
wg.Add(1)
chSmp <- true
//fmt.Println("this is directory. skip.")
//check more deep directory
go func() {
defer func() {
<-chSmp
wg.Done()
}()
checkDirectory(fullPath, extensions, ch, chSmp, wg, false)
}()
} else {
for _, ex := range extensions {
//fmt.Printf("search %s from %s\n", ex, fi.Name())
if reg.IsExtFile(fi.Name(), ex) {
ch <- fullPath
}
}
}
}
if closeFlg {
wg.Wait()
close(ch)
}
}