If you need to check if a file exists using Go, then you can use one of the following methods, depending on the version of Go you may be using.
If you are using Go >=1.13, then
file, err := os.OpenFile("/path/to/file.txt")
if errors.Is(err, os.ErrNotExist) {
// The file does not exists
}
However, it is also possible to trap an error from an OpenFile attempt:
file, err := os.OpenFile("/path/to/file.txt")
if os.IsNotExist(err) {
// The file does not exists
}
You can also confirm if the path is also not a directory as follows:
func fileExists(filename string) bool {
info, err := os.Stat(filename)
if os.IsNotExist(err) {
return false
}
return !info.IsDir()
}
