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// Copyright (C) 2022 Luke Shumaker <lukeshu@lukeshu.com>
//
// SPDX-License-Identifier: GPL-2.0-or-later
package btrfsutil
import (
"context"
"fmt"
"os"
"github.com/datawire/dlib/dlog"
"git.lukeshu.com/btrfs-progs-ng/lib/btrfs"
)
func Open(ctx context.Context, flag int, filenames ...string) (*btrfs.FS, error) {
fs := new(btrfs.FS)
for i, filename := range filenames {
dlog.Debugf(ctx, "Adding device file %d/%d %q...", i, len(filenames), filename)
fh, err := os.OpenFile(filename, flag, 0)
if err != nil {
_ = fs.Close()
return nil, fmt.Errorf("device file %q: %w", filename, err)
}
if err := fs.AddDevice(&btrfs.Device{File: fh}); err != nil {
dlog.Errorf(ctx, "device file %q: %v", filename, err)
}
}
return fs, nil
}
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