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// Copyright (c) 2021, Sylabs Inc. All rights reserved.
// This software is licensed under a 3-clause BSD license. Please consult the
// LICENSE file distributed with the sources of this project regarding your
// rights to use or distribute this software.
package siftool
import (
"os"
"github.com/sylabs/sif/v2/pkg/sif"
)
// withFileImage calls fn with a FileImage loaded from path.
func withFileImage(path string, writable bool, fn func(*sif.FileImage) error) (err error) {
flag := os.O_RDONLY
if writable {
flag = os.O_RDWR
}
f, err := sif.LoadContainerFromPath(path, sif.OptLoadWithFlag(flag))
if err != nil {
return err
}
defer func() {
if uerr := f.UnloadContainer(); uerr != nil && err == nil {
err = uerr
}
}()
return fn(f)
}
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