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v2fly/common/platform/filesystem/file.go
2019-02-10 19:04:11 +01:00

45 lines
809 B
Go

package filesystem
import (
"io"
"os"
"v2ray.com/core/common/buf"
"v2ray.com/core/common/platform"
)
type FileReaderFunc func(path string) (io.ReadCloser, error)
var NewFileReader FileReaderFunc = func(path string) (io.ReadCloser, error) {
return os.Open(path)
}
func ReadFile(path string) ([]byte, error) {
reader, err := NewFileReader(path)
if err != nil {
return nil, err
}
defer reader.Close()
return buf.ReadAllToBytes(reader)
}
func ReadAsset(file string) ([]byte, error) {
return ReadFile(platform.GetAssetLocation(file))
}
func CopyFile(dst string, src string) error {
bytes, err := ReadFile(src)
if err != nil {
return err
}
f, err := os.OpenFile(dst, os.O_CREATE|os.O_WRONLY, 0644)
if err != nil {
return err
}
defer f.Close()
_, err = f.Write(bytes)
return err
}