vitess.io/vitess@v0.16.2/go/cmd/vtctldclient/cli/awk.go (about)

     1  /*
     2  Copyright 2021 The Vitess Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8  	http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package cli
    18  
    19  import (
    20  	"fmt"
    21  	"sort"
    22  	"strings"
    23  	"time"
    24  
    25  	"vitess.io/vitess/go/vt/logutil"
    26  	"vitess.io/vitess/go/vt/topo"
    27  	"vitess.io/vitess/go/vt/topo/topoproto"
    28  
    29  	topodatapb "vitess.io/vitess/go/vt/proto/topodata"
    30  )
    31  
    32  // MarshalMapAWK returns a string representation of a string->string map in an
    33  // AWK-friendly format.
    34  func MarshalMapAWK(m map[string]string) string {
    35  	pairs := make([]string, len(m))
    36  	i := 0
    37  
    38  	for k, v := range m {
    39  		pairs[i] = fmt.Sprintf("%v: %q", k, v)
    40  
    41  		i++
    42  	}
    43  
    44  	sort.Strings(pairs)
    45  
    46  	return "[" + strings.Join(pairs, " ") + "]"
    47  }
    48  
    49  // MarshalTabletAWK marshals a tablet into an AWK-friendly line.
    50  func MarshalTabletAWK(t *topodatapb.Tablet) string {
    51  	ti := topo.TabletInfo{
    52  		Tablet: t,
    53  	}
    54  
    55  	keyspace := t.Keyspace
    56  	if keyspace == "" {
    57  		keyspace = "<null>"
    58  	}
    59  
    60  	shard := t.Shard
    61  	if shard == "" {
    62  		shard = "<null>"
    63  	}
    64  
    65  	mtst := "<null>"
    66  	// special case for old primary that hasn't been updated in the topo
    67  	// yet.
    68  	if t.PrimaryTermStartTime != nil && t.PrimaryTermStartTime.Seconds > 0 {
    69  		mtst = logutil.ProtoToTime(t.PrimaryTermStartTime).Format(time.RFC3339)
    70  	}
    71  
    72  	return fmt.Sprintf("%v %v %v %v %v %v %v %v", topoproto.TabletAliasString(t.Alias), keyspace, shard, topoproto.TabletTypeLString(t.Type), ti.Addr(), ti.MysqlAddr(), MarshalMapAWK(t.Tags), mtst)
    73  }