cmd, core, ethdb, node: move chain freezer one folder deeper (#25487)

* cmd, core, ethdb, node: create chain freezer in a sub folder

* core/rawdb: remove unused code

* core, ethdb, node: add AncientDatadir API back

* cmd, core: extend freezer info dump for sub-ancient-store

* core/rawdb: rework freezer inspector

* core/rawdb: address comments from Peter

* core/rawdb: fix build issue

cmd/geth/dbcmd.go

@@ -22,7 +22,6 @@ import (
 	"os"
 	"os/signal"
 	"path/filepath"
-	"sort"
 	"strconv"
 	"strings"
 	"syscall"
@@ -160,8 +159,8 @@ WARNING: This is a low-level operation which may cause database corruption!`,
 	dbDumpFreezerIndex = &cli.Command{
 		Action:    freezerInspect,
 		Name:      "freezer-index",
-		Usage:     "Dump out the index of a given freezer type",
-		ArgsUsage: "<type> <start (int)> <end (int)>",
+		Usage:     "Dump out the index of a specific freezer table",
+		ArgsUsage: "<freezer-type> <table-type> <start (int)> <end (int)>",
 		Flags: flags.Merge([]cli.Flag{
 			utils.SyncModeFlag,
 		}, utils.NetworkFlags, utils.DatabasePathFlags),
@@ -275,7 +274,7 @@ func inspect(ctx *cli.Context) error {
 		start  []byte
 	)
 	if ctx.NArg() > 2 {
-		return fmt.Errorf("Max 2 arguments: %v", ctx.Command.ArgsUsage)
+		return fmt.Errorf("max 2 arguments: %v", ctx.Command.ArgsUsage)
 	}
 	if ctx.NArg() >= 1 {
 		if d, err := hexutil.Decode(ctx.Args().Get(0)); err != nil {
@@ -536,43 +535,35 @@ func dbDumpTrie(ctx *cli.Context) error {
 }
 
 func freezerInspect(ctx *cli.Context) error {
-	var (
-		start, end    int64
-		disableSnappy bool
-		err           error
-	)
-	if ctx.NArg() < 3 {
+	if ctx.NArg() < 4 {
 		return fmt.Errorf("required arguments: %v", ctx.Command.ArgsUsage)
 	}
-	kind := ctx.Args().Get(0)
-	if noSnap, ok := rawdb.FreezerNoSnappy[kind]; !ok {
-		var options []string
-		for opt := range rawdb.FreezerNoSnappy {
-			options = append(options, opt)
-		}
-		sort.Strings(options)
-		return fmt.Errorf("Could read freezer-type '%v'. Available options: %v", kind, options)
-	} else {
-		disableSnappy = noSnap
-	}
-	if start, err = strconv.ParseInt(ctx.Args().Get(1), 10, 64); err != nil {
-		log.Info("Could read start-param", "error", err)
+	var (
+		freezer = ctx.Args().Get(0)
+		table   = ctx.Args().Get(1)
+	)
+	start, err := strconv.ParseInt(ctx.Args().Get(2), 10, 64)
+	if err != nil {
+		log.Info("Could not read start-param", "err", err)
 		return err
 	}
-	if end, err = strconv.ParseInt(ctx.Args().Get(2), 10, 64); err != nil {
-		log.Info("Could read count param", "error", err)
+	end, err := strconv.ParseInt(ctx.Args().Get(3), 10, 64)
+	if err != nil {
+		log.Info("Could not read count param", "err", err)
 		return err
 	}
 	stack, _ := makeConfigNode(ctx)
 	defer stack.Close()
-	path := filepath.Join(stack.ResolvePath("chaindata"), "ancient")
-	log.Info("Opening freezer", "location", path, "name", kind)
-	if f, err := rawdb.NewFreezerTable(path, kind, disableSnappy, true); err != nil {
+
+	db := utils.MakeChainDatabase(ctx, stack, true)
+	defer db.Close()
+
+	ancient, err := db.AncientDatadir()
+	if err != nil {
+		log.Info("Failed to retrieve ancient root", "err", err)
 		return err
-	} else {
-		f.DumpIndex(start, end)
 	}
-	return nil
+	return rawdb.InspectFreezerTable(ancient, freezer, table, start, end)
 }
 
 func importLDBdata(ctx *cli.Context) error {

cmd/utils/flags.go

@@ -91,7 +91,7 @@ var (
 	}
 	AncientFlag = &flags.DirectoryFlag{
 		Name:     "datadir.ancient",
-		Usage:    "Data directory for ancient chain segments (default = inside chaindata)",
+		Usage:    "Root directory for ancient data (default = inside chaindata)",
 		Category: flags.EthCategory,
 	}
 	MinFreeDiskSpaceFlag = &flags.DirectoryFlag{