feat: initial borfsck stub

cmd/borfsck/borfsck.go

@@ -0,0 +1,62 @@
+package borfsck
+
+import (
+	"fmt"
+	"github.com/spf13/cobra"
+	"github.com/syndtr/goleveldb/leveldb"
+	"github.com/syndtr/goleveldb/leveldb/filter"
+	"github.com/syndtr/goleveldb/leveldb/opt"
+)
+
+type fsckParamsType struct {
+	dbPath                 string
+	cacheSize              *int
+	openFilesCacheCapacity *int
+}
+
+var fsckParams = fsckParamsType{}
+
+var BorFsckCmd = &cobra.Command{
+	Use:   "bor-fsck /path/to/leveldb",
+	Short: "bor-fsck /path/to/leveldb",
+	Long:  "TODO",
+	Args: func(cmd *cobra.Command, args []string) error {
+		if len(args) != 1 {
+			return fmt.Errorf("bor-fsck expects exactly one argument: a path to leveldb")
+		}
+
+		fsckParams.dbPath = args[0]
+		db, err := openLevelDB()
+		if err != nil {
+			return err
+		}
+		_ = db
+		return nil
+	},
+	RunE: func(cmd *cobra.Command, args []string) error {
+		return nil
+	},
+}
+
+func openLevelDB() (*leveldb.DB, error) {
+	db, err := leveldb.OpenFile(fsckParams.dbPath, &opt.Options{
+		Filter:                 filter.NewBloomFilter(10),
+		DisableSeeksCompaction: true,
+		OpenFilesCacheCapacity: *fsckParams.openFilesCacheCapacity,
+		BlockCacheCapacity:     *fsckParams.cacheSize / 2 * opt.MiB,
+		// This tool should not be doing writes
+		ReadOnly: true,
+	})
+	if err != nil {
+		return nil, err
+	}
+	return db, nil
+
+}
+
+func init() {
+	flagSet := BorFsckCmd.PersistentFlags()
+	fsckParams.cacheSize = flagSet.Int("cache-size", 512, "the number of megabytes to use as our internal cache size")
+	fsckParams.openFilesCacheCapacity = flagSet.Int("handles", 500, "defines the capacity of the open files caching. Use -1 for zero, this has same effect as specifying NoCacher to OpenFilesCacher.")
+
+}

cmd/root.go

@@ -13,6 +13,7 @@ import (
 	"github.com/spf13/viper"
 
 	"github.com/maticnetwork/polygon-cli/cmd/abi"
+	"github.com/maticnetwork/polygon-cli/cmd/borfsck"
 	"github.com/maticnetwork/polygon-cli/cmd/dbbench"
 	"github.com/maticnetwork/polygon-cli/cmd/dumpblocks"
 	"github.com/maticnetwork/polygon-cli/cmd/enr"
@@ -106,6 +107,7 @@ func NewPolycliCommand() *cobra.Command {
 	// Define commands.
 	cmd.AddCommand(
 		abi.ABICmd,
+		borfsck.BorFsckCmd,
 		dumpblocks.DumpblocksCmd,
 		fork.ForkCmd,
 		fund.FundCmd,