// Copies the file at path src to path dst.
// Returns the number of bytes written or an error if it occurred.
func (gw *GhostWriter) copyFile(src string, dst string) (n int64, err error) {
var (
fdst fauxfile.File
fsrc fauxfile.File
fi os.FileInfo
)
if fsrc, err = gw.fs.Open(src); err != nil {
return
}
defer func() {
if err := fsrc.Close(); err != nil {
gw.log.Printf("Problem closing %v: %v\n", src, err)
} else {
gw.log.Printf("Closed %v\n", src)
}
}()
if fdst, err = gw.fs.Create(dst); err != nil {
return
}
defer func() {
if err := fdst.Close(); err != nil {
gw.log.Printf("Problem closing %v: %v\n", dst, err)
} else {
gw.log.Printf("Closed %v\n", dst)
}
}()
if fi, err = fsrc.Stat(); err != nil {
return
}
fdst.Chmod(fi.Mode())
_, err = io.Copy(fdst, fsrc)
return
}
