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|
package main
import (
"fmt"
"os"
"lukeshu.com/btrfs-tools/pkg/btrfs"
)
func main() {
if err := Main(os.Args[1]); err != nil {
fmt.Fprintf(os.Stderr, "%s: error: %v\n", os.Args[0], err)
os.Exit(1)
}
}
func Main(imgfilename string) (err error) {
maybeSetErr := func(_err error) {
if _err != nil && err == nil {
err = _err
}
}
fh, err := os.OpenFile(imgfilename, os.O_RDWR, 0)
if err != nil {
return err
}
defer func() {
maybeSetErr(fh.Close())
}()
fs := &btrfs.FS{
Devices: []*btrfs.Device{
{
File: fh,
},
},
}
superblock, err := pass0(fs)
if err != nil {
return err
}
foundNodes, err := pass1(fs, superblock)
if err != nil {
return err
}
pass2(fs, foundNodes)
return nil
}
|
