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package safetemp
import (
"io"
"io/ioutil"
"os"
"path/filepath"
)
// Dir creates a new temporary directory that isn't yet created. This
// can be used with calls that expect a non-existent directory.
//
// The directory is created as a child of a temporary directory created
// within the directory dir starting with prefix. The temporary directory
// returned is always named "temp". The parent directory has the specified
// prefix.
//
// The returned io.Closer should be used to clean up the returned directory.
// This will properly remove the returned directory and any other temporary
// files created.
//
// If an error is returned, the Closer does not need to be called (and will
// be nil).
func Dir(dir, prefix string) (string, io.Closer, error) {
// Create the temporary directory
td, err := ioutil.TempDir(dir, prefix)
if err != nil {
return "", nil, err
}
return filepath.Join(td, "temp"), pathCloser(td), nil
}
// pathCloser implements io.Closer to remove the given path on Close.
type pathCloser string
// Close deletes this path.
func (p pathCloser) Close() error {
return os.RemoveAll(string(p))
}
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