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root.go
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root.go
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// Copyright © 2016 Couchbase, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"fmt"
"os"
"strconv"
"github.com/ltraniello/bleve/v2"
"github.com/spf13/cobra"
)
var cfgFile string
var idx bleve.Index
// DefaultOpenReadOnly allows some distributions of this command to default
// to always opening the index read-only
var DefaultOpenReadOnly = false
const canMutateBleveIndex = "canMutateBleveIndex"
// CanMutateBleveIndex returns true if the command is capable
// of mutating the bleve index, or false if its operation is
// read-only
func CanMutateBleveIndex(c *cobra.Command) bool {
for k, v := range c.Annotations {
if k == canMutateBleveIndex {
if b, err := strconv.ParseBool(v); err == nil && b {
return true
}
}
}
return false
}
// RootCmd represents the base command when called without any subcommands
var RootCmd = &cobra.Command{
Use: "bleve",
Short: "command-line tool to interact with a bleve index",
Long: `Bleve is a command-line tool to interact with a bleve index.`,
PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
if len(args) < 1 {
return fmt.Errorf("must specify path to index")
}
runtimeConfig := map[string]interface{}{
"read_only": DefaultOpenReadOnly,
}
var err error
idx, err = bleve.OpenUsing(args[0], runtimeConfig)
if err != nil {
return fmt.Errorf("error opening bleve index: %v", err)
}
return nil
},
PersistentPostRunE: func(cmd *cobra.Command, args []string) error {
err := idx.Close()
if err != nil {
return fmt.Errorf("error closing bleve index: %v", err)
}
return nil
},
}
// Execute adds all child commands to the root command sets flags appropriately.
// This is called by main.main(). It only needs to happen once to the rootCmd.
func Execute() {
if err := RootCmd.Execute(); err != nil {
fmt.Println(err)
os.Exit(-1)
}
}