mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
106 lines
2.7 KiB
Go
106 lines
2.7 KiB
Go
// Copyright 2015 CoreOS, Inc.
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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 command
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import (
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"errors"
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"io"
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"io/ioutil"
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"time"
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"github.com/coreos/etcd/Godeps/_workspace/src/github.com/spf13/cobra"
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"github.com/coreos/etcd/clientv3"
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"github.com/coreos/etcd/pkg/transport"
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)
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// GlobalFlags are flags that defined globally
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// and are inherited to all sub-commands.
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type GlobalFlags struct {
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Endpoints string
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TLS transport.TLSInfo
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}
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func mustClientFromCmd(cmd *cobra.Command) *clientv3.Client {
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endpoint, err := cmd.Flags().GetString("endpoint")
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if err != nil {
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ExitWithError(ExitError, err)
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}
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var cert, key, cacert string
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if cert, err = cmd.Flags().GetString("cert"); err != nil {
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ExitWithError(ExitBadArgs, err)
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} else if cert == "" && cmd.Flags().Changed("cert") {
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ExitWithError(ExitBadArgs, errors.New("empty string is passed to --cert option"))
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}
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if key, err = cmd.Flags().GetString("key"); err != nil {
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ExitWithError(ExitBadArgs, err)
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} else if key == "" && cmd.Flags().Changed("key") {
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ExitWithError(ExitBadArgs, errors.New("empty string is passed to --key option"))
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}
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if cacert, err = cmd.Flags().GetString("cacert"); err != nil {
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ExitWithError(ExitBadArgs, err)
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} else if cacert == "" && cmd.Flags().Changed("cacert") {
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ExitWithError(ExitBadArgs, errors.New("empty string is passed to --cacert option"))
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}
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return mustClient(endpoint, cert, key, cacert)
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}
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func mustClient(endpoint, cert, key, cacert string) *clientv3.Client {
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// set tls if any one tls option set
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var cfgtls *transport.TLSInfo
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tls := transport.TLSInfo{}
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var file string
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if cert != "" {
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tls.CertFile = cert
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cfgtls = &tls
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}
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if key != "" {
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tls.KeyFile = key
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cfgtls = &tls
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}
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if cacert != "" {
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tls.CAFile = file
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cfgtls = &tls
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}
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cfg := clientv3.Config{
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Endpoints: []string{endpoint},
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TLS: cfgtls,
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DialTimeout: 20 * time.Second,
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}
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client, err := clientv3.New(cfg)
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if err != nil {
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ExitWithError(ExitBadConnection, err)
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}
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return client
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}
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func argOrStdin(args []string, stdin io.Reader, i int) (string, error) {
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if i < len(args) {
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return args[i], nil
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}
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bytes, err := ioutil.ReadAll(stdin)
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if string(bytes) == "" || err != nil {
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return "", errors.New("no available argument and stdin")
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}
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return string(bytes), nil
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}
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