mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
f8a513ce65
By default, wait up to 10 seconds to obtain flocks. Signed-off-by: Gyuho Lee <leegyuho@amazon.com>
128 lines
3.3 KiB
Go
128 lines
3.3 KiB
Go
// Copyright 2016 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"fmt"
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"log"
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"os"
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"path/filepath"
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"strings"
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"time"
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"github.com/spf13/cobra"
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)
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var (
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rootCommand = &cobra.Command{
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Use: "etcd-dump-db",
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Short: "etcd-dump-db inspects etcd db files.",
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}
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listBucketCommand = &cobra.Command{
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Use: "list-bucket [data dir or db file path]",
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Short: "bucket lists all buckets.",
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Run: listBucketCommandFunc,
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}
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iterateBucketCommand = &cobra.Command{
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Use: "iterate-bucket [data dir or db file path] [bucket name]",
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Short: "iterate-bucket lists key-value pairs in reverse order.",
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Run: iterateBucketCommandFunc,
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}
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getHashCommand = &cobra.Command{
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Use: "hash [data dir or db file path]",
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Short: "hash computes the hash of db file.",
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Run: getHashCommandFunc,
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}
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)
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var flockTimeout time.Duration
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var iterateBucketLimit uint64
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var iterateBucketDecode bool
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func init() {
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rootCommand.PersistentFlags().DurationVar(&flockTimeout, "timeout", 10*time.Second, "time to wait to obtain a file lock on db file, 0 to block indefinitely")
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iterateBucketCommand.PersistentFlags().Uint64Var(&iterateBucketLimit, "limit", 0, "max number of key-value pairs to iterate (0< to iterate all)")
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iterateBucketCommand.PersistentFlags().BoolVar(&iterateBucketDecode, "decode", false, "true to decode Protocol Buffer encoded data")
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rootCommand.AddCommand(listBucketCommand)
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rootCommand.AddCommand(iterateBucketCommand)
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rootCommand.AddCommand(getHashCommand)
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}
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func main() {
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if err := rootCommand.Execute(); err != nil {
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fmt.Fprintln(os.Stdout, err)
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os.Exit(1)
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}
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}
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func listBucketCommandFunc(cmd *cobra.Command, args []string) {
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if len(args) < 1 {
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log.Fatalf("Must provide at least 1 argument (got %v)", args)
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}
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dp := args[0]
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if !strings.HasSuffix(dp, "db") {
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dp = filepath.Join(snapDir(dp), "db")
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}
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if !existFileOrDir(dp) {
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log.Fatalf("%q does not exist", dp)
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}
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bts, err := getBuckets(dp)
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if err != nil {
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log.Fatal(err)
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}
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for _, b := range bts {
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fmt.Println(b)
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}
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}
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func iterateBucketCommandFunc(cmd *cobra.Command, args []string) {
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if len(args) != 2 {
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log.Fatalf("Must provide 2 arguments (got %v)", args)
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}
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dp := args[0]
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if !strings.HasSuffix(dp, "db") {
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dp = filepath.Join(snapDir(dp), "db")
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}
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if !existFileOrDir(dp) {
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log.Fatalf("%q does not exist", dp)
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}
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bucket := args[1]
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err := iterateBucket(dp, bucket, iterateBucketLimit, iterateBucketDecode)
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if err != nil {
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log.Fatal(err)
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}
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}
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func getHashCommandFunc(cmd *cobra.Command, args []string) {
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if len(args) < 1 {
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log.Fatalf("Must provide at least 1 argument (got %v)", args)
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}
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dp := args[0]
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if !strings.HasSuffix(dp, "db") {
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dp = filepath.Join(snapDir(dp), "db")
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}
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if !existFileOrDir(dp) {
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log.Fatalf("%q does not exist", dp)
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}
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hash, err := getHash(dp)
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if err != nil {
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log.Fatal(err)
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}
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fmt.Printf("db path: %s\nHash: %d\n", dp, hash)
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}
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