featurebase/cmd/sort.go
2017-04-28 14:22:03 -05:00

64 lines
1.5 KiB
Go

// Copyright 2017 Pilosa Corp.
//
// 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 (
"context"
"fmt"
"io"
"os"
"github.com/spf13/cobra"
"github.com/pilosa/pilosa/ctl"
)
var Sorter *ctl.SortCommand
func NewSortCommand(stdin io.Reader, stdout, stderr io.Writer) *cobra.Command {
Sorter = ctl.NewSortCommand(os.Stdin, os.Stdout, os.Stderr)
sortCmd := &cobra.Command{
Use: "sort <path>",
Short: "Sort import data for optimal import performance.",
Long: `
Sorts the import data at PATH into the optimal sort order for importing.
The format of the CSV file is:
ROWID,COLUMNID
The file should contain no headers.
`,
RunE: func(cmd *cobra.Command, args []string) error {
if len(args) == 0 {
return fmt.Errorf("path required")
} else if len(args) > 1 {
return fmt.Errorf("only one path supported")
}
Sorter.Path = args[0]
if err := Sorter.Run(context.Background()); err != nil {
return err
}
return nil
},
}
return sortCmd
}
func init() {
subcommandFns["sort"] = NewSortCommand
}