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/
cluster_list.go
86 lines (68 loc) · 1.75 KB
/
cluster_list.go
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//
// Copyright (c) 2015 The heketi Authors
//
// 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 commands
import (
"encoding/json"
"flag"
"fmt"
client "github.com/heketi/heketi/client/api/go-client"
"github.com/lpabon/godbc"
"strings"
)
type ClusterListCommand struct {
Cmd
}
func NewClusterListCommand(options *Options) *ClusterListCommand {
godbc.Require(options != nil)
cmd := &ClusterListCommand{}
cmd.name = "list"
cmd.options = options
cmd.flags = flag.NewFlagSet(cmd.name, flag.ExitOnError)
//usage on -help
cmd.flags.Usage = func() {
fmt.Println(`
Lists the clusters managed by Heketi
USAGE
heketi-cli [options] cluster list
EXAMPLE
$ heketi-cli cluster list
`)
}
godbc.Ensure(cmd.name == "list")
return cmd
}
func (c *ClusterListCommand) Exec(args []string) error {
//parse args
c.flags.Parse(args)
// Create a client
heketi := client.NewClient(c.options.Url, c.options.User, c.options.Key)
// List clusters
list, err := heketi.ClusterList()
if err != nil {
return err
}
if c.options.Json {
data, err := json.Marshal(list)
if err != nil {
return err
}
fmt.Fprintf(stdout, string(data))
} else {
output := strings.Join(list.Clusters, "\n")
fmt.Fprintf(stdout, "Clusters:\n%v\n", output)
}
return nil
}