mirror of
https://github.com/etcd-io/etcd.git
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780d2f2a59
Documentation was far too repetitive, making it a chore to read and make changes. All commands are now organized by functionality and all repetitive bits about return values and output are in a generalized subsections. etcdctl's output handling was missing a lot of commands. Similarly, in many cases an output format could be given but fail to report an error as expected.
65 lines
1.6 KiB
Go
65 lines
1.6 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 command
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import (
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"fmt"
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"os"
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v3 "github.com/coreos/etcd/clientv3"
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pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
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mvccpb "github.com/coreos/etcd/mvcc/mvccpb"
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)
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type pbPrinter struct{ printer }
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type pbMarshal interface {
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Marshal() ([]byte, error)
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}
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func newPBPrinter() printer {
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return &pbPrinter{
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&printerRPC{newPrinterUnsupported("protobuf"), printPB},
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}
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}
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func (p *pbPrinter) Watch(r v3.WatchResponse) {
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evs := make([]*mvccpb.Event, len(r.Events))
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for i, ev := range r.Events {
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evs[i] = (*mvccpb.Event)(ev)
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}
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wr := pb.WatchResponse{
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Header: &r.Header,
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Events: evs,
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CompactRevision: r.CompactRevision,
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Canceled: r.Canceled,
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Created: r.Created,
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}
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printPB(&wr)
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}
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func printPB(v interface{}) {
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m, ok := v.(pbMarshal)
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if !ok {
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ExitWithError(ExitBadFeature, fmt.Errorf("marshal unsupported for type %T (%v)", v, v))
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}
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b, err := m.Marshal()
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if err != nil {
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fmt.Fprintf(os.Stderr, "%v\n", err)
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return
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}
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fmt.Printf(string(b))
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}
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