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// Copyright (C) 2022 Luke Shumaker <lukeshu@lukeshu.com>
//
// SPDX-License-Identifier: GPL-2.0-or-later
package main
import (
"os"
"runtime"
"github.com/datawire/dlib/dlog"
"github.com/datawire/ocibuild/pkg/cliutil"
"github.com/spf13/cobra"
"git.lukeshu.com/btrfs-progs-ng/lib/btrfs"
"git.lukeshu.com/btrfs-progs-ng/lib/btrfsprogs/btrfsinspect/rebuildmappings"
)
func init() {
inspectors = append(inspectors, subcommand{
Command: cobra.Command{
Use: "scan-for-extents NODESCAN.json DUMPSUMS.gob",
Args: cliutil.WrapPositionalArgs(cobra.ExactArgs(2)),
},
RunE: func(fs *btrfs.FS, cmd *cobra.Command, args []string) error {
ctx := cmd.Context()
dlog.Infof(ctx, "Reading %q...", args[0])
bgs, err := rebuildmappings.ReadNodeScanResults(fs, args[0])
if err != nil {
return err
}
runtime.GC()
dlog.Infof(ctx, "... done reading %q", args[0])
dlog.Infof(ctx, "Reading %q...", args[1])
sums, err := rebuildmappings.ReadAllSums(args[1])
if err != nil {
return err
}
dlog.Infof(ctx, "... done reading %q", args[1])
if err := rebuildmappings.ScanForExtents(ctx, fs, bgs, sums); err != nil {
return err
}
dlog.Infof(ctx, "Writing reconstructed mappings to stdout...")
if err := writeMappingsJSON(os.Stdout, fs); err != nil {
return err
}
return nil
},
})
}
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