/
path.go
110 lines (94 loc) · 2.05 KB
/
path.go
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package util
import (
"io"
"io/ioutil"
"os"
"path"
"path/filepath"
)
func Exists(path string) (bool, error) {
_, err := os.Stat(path)
if err == nil {
return true, nil
} else if os.IsNotExist(err) {
return false, nil
}
return false, err
}
func ListSubFolders(path string) ([]string, error) {
exists, err := Exists(path)
if err != nil || !exists {
return nil, err
}
subfolders := make([]string, 0)
files, err := ioutil.ReadDir(path)
if err != nil {
return nil, err
}
for _, f := range files {
if f.IsDir() {
subfolders = append(subfolders, f.Name())
}
}
return subfolders, nil
}
// will return full path.
func ListFiles(folder string) ([]string, *Result) {
exists, err := Exists(folder)
if err != nil || !exists {
return nil, Error("Exists", err)
}
files, err := os.ReadDir(folder)
if err != nil {
return nil, Error("ReadDir", err)
}
ret := make([]string, 0)
for _, file := range files {
if file.Type().IsRegular() {
ret = append(ret, path.Join(folder, file.Name()))
}
}
return ret, nil
}
func MaybeCreate(folder string) error {
return os.MkdirAll(folder, 0777)
}
func MoveFile(src, dst string) *Result {
if src == "" {
return MsgError("CheckSourcePath", "no source path to move")
}
//TODO: src is a folder?
if fs, err := os.Stat(dst); err != nil {
return Error("CheckTargetPath", err)
} else {
if fs.IsDir() {
_, fn := filepath.Split(src)
dst = filepath.Join(dst, fn)
}
}
dstFolder, _ := filepath.Split(dst)
if err := MaybeCreate(dstFolder); err != nil {
return Error("MaybeCreate: "+dstFolder, err)
}
inputFile, err := os.Open(src)
if err != nil {
return Error("Open: "+src, err)
}
outputFile, err := os.Create(dst)
if err != nil {
inputFile.Close()
return Error("Create: "+dst, err)
}
defer outputFile.Close()
_, err = io.Copy(outputFile, inputFile)
inputFile.Close()
if err != nil {
return Error("Copy "+src+" to "+dst, err)
}
// The copy was successful, so now delete the original file
err = os.Remove(src)
if err != nil {
return Error("Remove "+src, err)
}
return nil
}