blob: e51aae9cc6bd4c61b2a71a461042bb9202b401b6 (
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package main
import (
"fmt"
"os"
)
func main() {
if err := Main(os.Args[1:]...); err != nil {
fmt.Fprintf(os.Stderr, "%v: error: %v\n", os.Args[0], err)
os.Exit(1)
}
}
func Main(imgfilenames ...string) (err error) {
maybeSetErr := func(_err error) {
if _err != nil && err == nil {
err = _err
}
}
var imgfiles []*os.File
for _, imgfilename := range imgfilenames {
fh, err := os.OpenFile(imgfilename, os.O_RDWR, 0)
if err != nil {
return err
}
defer func() {
maybeSetErr(fh.Close())
}()
imgfiles = append(imgfiles, fh)
}
fs, sb, err := pass0(imgfiles...)
if err != nil {
return err
}
foundNodes, err := pass1(fs, sb)
if err != nil {
return err
}
pass2(fs, foundNodes)
return nil
}
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