cmd: use flags.Merge for grouping flags (ethereum#25392)

cmd/geth/chaincmd.go

@@ -35,6 +35,7 @@ import (
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethdb"
+	"github.com/ethereum/go-ethereum/internal/flags"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/metrics"
 	"github.com/ethereum/go-ethereum/node"
@@ -69,7 +70,7 @@ The dumpgenesis command dumps the genesis block configuration in JSON format to
 		Name:      "import",
 		Usage:     "Import a blockchain file",
 		ArgsUsage: "<filename> (<filename 2> ... <filename N>) ",
-		Flags: append([]cli.Flag{
+		Flags: flags.Merge([]cli.Flag{
 			utils.CacheFlag,
 			utils.SyncModeFlag,
 			utils.GCModeFlag,
@@ -91,7 +92,7 @@ The dumpgenesis command dumps the genesis block configuration in JSON format to
 			utils.MetricsInfluxDBBucketFlag,
 			utils.MetricsInfluxDBOrganizationFlag,
 			utils.TxLookupLimitFlag,
-		}, utils.DatabasePathFlags...),
+		}, utils.DatabasePathFlags),
 		Description: `
 The import command imports blocks from an RLP-encoded form. The form can be one file
 with several RLP-encoded blocks, or several files can be used.
@@ -104,10 +105,10 @@ processing will proceed even if an individual RLP-file import failure occurs.`,
 		Name:      "export",
 		Usage:     "Export blockchain into file",
 		ArgsUsage: "<filename> [<blockNumFirst> <blockNumLast>]",
-		Flags: append([]cli.Flag{
+		Flags: flags.Merge([]cli.Flag{
 			utils.CacheFlag,
 			utils.SyncModeFlag,
-		}, utils.DatabasePathFlags...),
+		}, utils.DatabasePathFlags),
 		Description: `
 Requires a first argument of the file to write to.
 Optional second and third arguments control the first and
@@ -120,10 +121,10 @@ be gzipped.`,
 		Name:      "import-preimages",
 		Usage:     "Import the preimage database from an RLP stream",
 		ArgsUsage: "<datafile>",
-		Flags: append([]cli.Flag{
+		Flags: flags.Merge([]cli.Flag{
 			utils.CacheFlag,
 			utils.SyncModeFlag,
-		}, utils.DatabasePathFlags...),
+		}, utils.DatabasePathFlags),
 		Description: `
 The import-preimages command imports hash preimages from an RLP encoded stream.
 It's deprecated, please use "geth db import" instead.
@@ -134,10 +135,10 @@ It's deprecated, please use "geth db import" instead.
 		Name:      "export-preimages",
 		Usage:     "Export the preimage database into an RLP stream",
 		ArgsUsage: "<dumpfile>",
-		Flags: append([]cli.Flag{
+		Flags: flags.Merge([]cli.Flag{
 			utils.CacheFlag,
 			utils.SyncModeFlag,
-		}, utils.DatabasePathFlags...),
+		}, utils.DatabasePathFlags),
 		Description: `
 The export-preimages command exports hash preimages to an RLP encoded stream.
 It's deprecated, please use "geth db export" instead.
@@ -148,15 +149,15 @@ It's deprecated, please use "geth db export" instead.
 		Name:      "dump",
 		Usage:     "Dump a specific block from storage",
 		ArgsUsage: "[? <blockHash> | <blockNum>]",
-		Flags: append([]cli.Flag{
+		Flags: flags.Merge([]cli.Flag{
 			utils.CacheFlag,
 			utils.IterativeOutputFlag,
 			utils.ExcludeCodeFlag,
 			utils.ExcludeStorageFlag,
 			utils.IncludeIncompletesFlag,
 			utils.StartKeyFlag,
 			utils.DumpLimitFlag,
-		}, utils.DatabasePathFlags...),
+		}, utils.DatabasePathFlags),
 		Description: `
 This command dumps out the state for a given block (or latest, if none provided).
 `,

cmd/geth/config.go

@@ -49,7 +49,7 @@ var (
 		Name:        "dumpconfig",
 		Usage:       "Show configuration values",
 		ArgsUsage:   "",
-		Flags:       utils.GroupFlags(nodeFlags, rpcFlags),
+		Flags:       flags.Merge(nodeFlags, rpcFlags),
 		Description: `The dumpconfig command shows configuration values.`,
 	}
 

cmd/geth/consolecmd.go

@@ -22,6 +22,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/cmd/utils"
 	"github.com/ethereum/go-ethereum/console"
+	"github.com/ethereum/go-ethereum/internal/flags"
 	"github.com/ethereum/go-ethereum/node"
 	"github.com/ethereum/go-ethereum/rpc"
 	"github.com/urfave/cli/v2"
@@ -34,7 +35,7 @@ var (
 		Action: localConsole,
 		Name:   "console",
 		Usage:  "Start an interactive JavaScript environment",
-		Flags:  utils.GroupFlags(nodeFlags, rpcFlags, consoleFlags),
+		Flags:  flags.Merge(nodeFlags, rpcFlags, consoleFlags),
 		Description: `
 The Geth console is an interactive shell for the JavaScript runtime environment
 which exposes a node admin interface as well as the Ðapp JavaScript API.
@@ -46,7 +47,7 @@ See https://geth.ethereum.org/docs/interface/javascript-console.`,
 		Name:      "attach",
 		Usage:     "Start an interactive JavaScript environment (connect to node)",
 		ArgsUsage: "[endpoint]",
-		Flags:     utils.GroupFlags([]cli.Flag{utils.DataDirFlag}, consoleFlags),
+		Flags:     flags.Merge([]cli.Flag{utils.DataDirFlag}, consoleFlags),
 		Description: `
 The Geth console is an interactive shell for the JavaScript runtime environment
 which exposes a node admin interface as well as the Ðapp JavaScript API.
@@ -59,7 +60,7 @@ This command allows to open a console on a running geth node.`,
 		Name:      "js",
 		Usage:     "(DEPRECATED) Execute the specified JavaScript files",
 		ArgsUsage: "<jsfile> [jsfile...]",
-		Flags:     utils.GroupFlags(nodeFlags, consoleFlags),
+		Flags:     flags.Merge(nodeFlags, consoleFlags),
 		Description: `
 The JavaScript VM exposes a node admin interface as well as the Ðapp
 JavaScript API. See https://geth.ethereum.org/docs/interface/javascript-console`,

cmd/geth/dbcmd.go

@@ -37,6 +37,7 @@ import (
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethdb"
+	"github.com/ethereum/go-ethereum/internal/flags"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/trie"
 	"github.com/olekukonko/tablewriter"
@@ -77,7 +78,7 @@ Remove blockchain and state databases`,
 		Action:    inspect,
 		Name:      "inspect",
 		ArgsUsage: "<prefix> <start>",
-		Flags: utils.GroupFlags([]cli.Flag{
+		Flags: flags.Merge([]cli.Flag{
 			utils.SyncModeFlag,
 		}, utils.NetworkFlags, utils.DatabasePathFlags),
 		Usage:       "Inspect the storage size for each type of data in the database",
@@ -87,7 +88,7 @@ Remove blockchain and state databases`,
 		Action:    checkStateContent,
 		Name:      "check-state-content",
 		ArgsUsage: "<start (optional)>",
-		Flags:     utils.GroupFlags(utils.NetworkFlags, utils.DatabasePathFlags),
+		Flags:     flags.Merge(utils.NetworkFlags, utils.DatabasePathFlags),
 		Usage:     "Verify that state data is cryptographically correct",
 		Description: `This command iterates the entire database for 32-byte keys, looking for rlp-encoded trie nodes.
 For each trie node encountered, it checks that the key corresponds to the keccak256(value). If this is not true, this indicates
@@ -97,15 +98,15 @@ a data corruption.`,
 		Action: dbStats,
 		Name:   "stats",
 		Usage:  "Print leveldb statistics",
-		Flags: utils.GroupFlags([]cli.Flag{
+		Flags: flags.Merge([]cli.Flag{
 			utils.SyncModeFlag,
 		}, utils.NetworkFlags, utils.DatabasePathFlags),
 	}
 	dbCompactCmd = &cli.Command{
 		Action: dbCompact,
 		Name:   "compact",
 		Usage:  "Compact leveldb database. WARNING: May take a very long time",
-		Flags: utils.GroupFlags([]cli.Flag{
+		Flags: flags.Merge([]cli.Flag{
 			utils.SyncModeFlag,
 			utils.CacheFlag,
 			utils.CacheDatabaseFlag,
@@ -119,7 +120,7 @@ corruption if it is aborted during execution'!`,
 		Name:      "get",
 		Usage:     "Show the value of a database key",
 		ArgsUsage: "<hex-encoded key>",
-		Flags: utils.GroupFlags([]cli.Flag{
+		Flags: flags.Merge([]cli.Flag{
 			utils.SyncModeFlag,
 		}, utils.NetworkFlags, utils.DatabasePathFlags),
 		Description: "This command looks up the specified database key from the database.",
@@ -129,7 +130,7 @@ corruption if it is aborted during execution'!`,
 		Name:      "delete",
 		Usage:     "Delete a database key (WARNING: may corrupt your database)",
 		ArgsUsage: "<hex-encoded key>",
-		Flags: utils.GroupFlags([]cli.Flag{
+		Flags: flags.Merge([]cli.Flag{
 			utils.SyncModeFlag,
 		}, utils.NetworkFlags, utils.DatabasePathFlags),
 		Description: `This command deletes the specified database key from the database. 
@@ -140,7 +141,7 @@ WARNING: This is a low-level operation which may cause database corruption!`,
 		Name:      "put",
 		Usage:     "Set the value of a database key (WARNING: may corrupt your database)",
 		ArgsUsage: "<hex-encoded key> <hex-encoded value>",
-		Flags: utils.GroupFlags([]cli.Flag{
+		Flags: flags.Merge([]cli.Flag{
 			utils.SyncModeFlag,
 		}, utils.NetworkFlags, utils.DatabasePathFlags),
 		Description: `This command sets a given database key to the given value. 
@@ -151,7 +152,7 @@ WARNING: This is a low-level operation which may cause database corruption!`,
 		Name:      "dumptrie",
 		Usage:     "Show the storage key/values of a given storage trie",
 		ArgsUsage: "<hex-encoded storage trie root> <hex-encoded start (optional)> <int max elements (optional)>",
-		Flags: utils.GroupFlags([]cli.Flag{
+		Flags: flags.Merge([]cli.Flag{
 			utils.SyncModeFlag,
 		}, utils.NetworkFlags, utils.DatabasePathFlags),
 		Description: "This command looks up the specified database key from the database.",
@@ -161,7 +162,7 @@ WARNING: This is a low-level operation which may cause database corruption!`,
 		Name:      "freezer-index",
 		Usage:     "Dump out the index of a given freezer type",
 		ArgsUsage: "<type> <start (int)> <end (int)>",
-		Flags: utils.GroupFlags([]cli.Flag{
+		Flags: flags.Merge([]cli.Flag{
 			utils.SyncModeFlag,
 		}, utils.NetworkFlags, utils.DatabasePathFlags),
 		Description: "This command displays information about the freezer index.",
@@ -171,7 +172,7 @@ WARNING: This is a low-level operation which may cause database corruption!`,
 		Name:      "import",
 		Usage:     "Imports leveldb-data from an exported RLP dump.",
 		ArgsUsage: "<dumpfile> <start (optional)",
-		Flags: utils.GroupFlags([]cli.Flag{
+		Flags: flags.Merge([]cli.Flag{
 			utils.SyncModeFlag,
 		}, utils.NetworkFlags, utils.DatabasePathFlags),
 		Description: "The import command imports the specific chain data from an RLP encoded stream.",
@@ -181,7 +182,7 @@ WARNING: This is a low-level operation which may cause database corruption!`,
 		Name:      "export",
 		Usage:     "Exports the chain data into an RLP dump. If the <dumpfile> has .gz suffix, gzip compression will be used.",
 		ArgsUsage: "<type> <dumpfile>",
-		Flags: utils.GroupFlags([]cli.Flag{
+		Flags: flags.Merge([]cli.Flag{
 			utils.SyncModeFlag,
 		}, utils.NetworkFlags, utils.DatabasePathFlags),
 		Description: "Exports the specified chain data to an RLP encoded stream, optionally gzip-compressed.",
@@ -190,7 +191,7 @@ WARNING: This is a low-level operation which may cause database corruption!`,
 		Action: showMetaData,
 		Name:   "metadata",
 		Usage:  "Shows metadata about the chain status.",
-		Flags: utils.GroupFlags([]cli.Flag{
+		Flags: flags.Merge([]cli.Flag{
 			utils.SyncModeFlag,
 		}, utils.NetworkFlags, utils.DatabasePathFlags),
 		Description: "Shows metadata about the chain status.",
@@ -200,7 +201,7 @@ WARNING: This is a low-level operation which may cause database corruption!`,
 		Name:      "freezer-migrate",
 		Usage:     "Migrate legacy parts of the freezer. (WARNING: may take a long time)",
 		ArgsUsage: "",
-		Flags: utils.GroupFlags([]cli.Flag{
+		Flags: flags.Merge([]cli.Flag{
 			utils.SyncModeFlag,
 		}, utils.NetworkFlags, utils.DatabasePathFlags),
 		Description: `The freezer-migrate command checks your database for receipts in a legacy format and updates those.

cmd/geth/main.go

@@ -58,7 +58,7 @@ var (
 	// The app that holds all commands and flags.
 	app = flags.NewApp(gitCommit, gitDate, "the go-ethereum command line interface")
 	// flags that configure the node
-	nodeFlags = utils.GroupFlags([]cli.Flag{
+	nodeFlags = flags.Merge([]cli.Flag{
 		utils.IdentityFlag,
 		utils.UnlockedAccountFlag,
 		utils.PasswordFileFlag,
@@ -243,7 +243,7 @@ func init() {
 	}
 	sort.Sort(cli.CommandsByName(app.Commands))
 
-	app.Flags = utils.GroupFlags(
+	app.Flags = flags.Merge(
 		nodeFlags,
 		rpcFlags,
 		consoleFlags,

cmd/geth/snapshot.go

@@ -31,6 +31,7 @@ import (
 	"github.com/ethereum/go-ethereum/core/state/snapshot"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/internal/flags"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/rlp"
 	"github.com/ethereum/go-ethereum/trie"
@@ -56,7 +57,7 @@ var (
 				Usage:     "Prune stale ethereum state data based on the snapshot",
 				ArgsUsage: "<root>",
 				Action:    pruneState,
-				Flags: utils.GroupFlags([]cli.Flag{
+				Flags: flags.Merge([]cli.Flag{
 					utils.CacheTrieJournalFlag,
 					utils.BloomFilterSizeFlag,
 				}, utils.NetworkFlags, utils.DatabasePathFlags),
@@ -80,7 +81,7 @@ the trie clean cache with default directory will be deleted.
 				Usage:     "Recalculate state hash based on the snapshot for verification",
 				ArgsUsage: "<root>",
 				Action:    verifyState,
-				Flags:     utils.GroupFlags(utils.NetworkFlags, utils.DatabasePathFlags),
+				Flags:     flags.Merge(utils.NetworkFlags, utils.DatabasePathFlags),
 				Description: `
 geth snapshot verify-state <state-root>
 will traverse the whole accounts and storages set based on the specified
@@ -93,7 +94,7 @@ In other words, this command does the snapshot to trie conversion.
 				Usage:     "Check that there is no 'dangling' snap storage",
 				ArgsUsage: "<root>",
 				Action:    checkDanglingStorage,
-				Flags:     utils.GroupFlags(utils.NetworkFlags, utils.DatabasePathFlags),
+				Flags:     flags.Merge(utils.NetworkFlags, utils.DatabasePathFlags),
 				Description: `
 geth snapshot check-dangling-storage <state-root> traverses the snap storage 
 data, and verifies that all snapshot storage data has a corresponding account. 
@@ -104,7 +105,7 @@ data, and verifies that all snapshot storage data has a corresponding account.
 				Usage:     "Check all snapshot layers for the a specific account",
 				ArgsUsage: "<address | hash>",
 				Action:    checkAccount,
-				Flags:     utils.GroupFlags(utils.NetworkFlags, utils.DatabasePathFlags),
+				Flags:     flags.Merge(utils.NetworkFlags, utils.DatabasePathFlags),
 				Description: `
 geth snapshot inspect-account <address | hash> checks all snapshot layers and prints out
 information about the specified address. 
@@ -115,7 +116,7 @@ information about the specified address.
 				Usage:     "Traverse the state with given root hash and perform quick verification",
 				ArgsUsage: "<root>",
 				Action:    traverseState,
-				Flags:     utils.GroupFlags(utils.NetworkFlags, utils.DatabasePathFlags),
+				Flags:     flags.Merge(utils.NetworkFlags, utils.DatabasePathFlags),
 				Description: `
 geth snapshot traverse-state <state-root>
 will traverse the whole state from the given state root and will abort if any
@@ -130,7 +131,7 @@ It's also usable without snapshot enabled.
 				Usage:     "Traverse the state with given root hash and perform detailed verification",
 				ArgsUsage: "<root>",
 				Action:    traverseRawState,
-				Flags:     utils.GroupFlags(utils.NetworkFlags, utils.DatabasePathFlags),
+				Flags:     flags.Merge(utils.NetworkFlags, utils.DatabasePathFlags),
 				Description: `
 geth snapshot traverse-rawstate <state-root>
 will traverse the whole state from the given root and will abort if any referenced
@@ -146,7 +147,7 @@ It's also usable without snapshot enabled.
 				Usage:     "Dump a specific block from storage (same as 'geth dump' but using snapshots)",
 				ArgsUsage: "[? <blockHash> | <blockNum>]",
 				Action:    dumpState,
-				Flags: utils.GroupFlags([]cli.Flag{
+				Flags: flags.Merge([]cli.Flag{
 					utils.ExcludeCodeFlag,
 					utils.ExcludeStorageFlag,
 					utils.StartKeyFlag,

cmd/utils/flags.go

@@ -994,15 +994,6 @@ var (
 	}
 )
 
-// GroupFlags combines the given flag slices together and returns the merged one.
-func GroupFlags(groups ...[]cli.Flag) []cli.Flag {
-	var ret []cli.Flag
-	for _, group := range groups {
-		ret = append(ret, group...)
-	}
-	return ret
-}
-
 // MakeDataDir retrieves the currently requested data directory, terminating
 // if none (or the empty string) is specified. If the node is starting a testnet,
 // then a subdirectory of the specified datadir will be used.