forked from googleapis/google-cloud-go
-
Notifications
You must be signed in to change notification settings - Fork 0
/
cbt.go
1292 lines (1166 loc) · 35.1 KB
/
cbt.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
Copyright 2015 Google Inc. All Rights Reserved.
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 main
// Command docs are in cbtdoc.go.
import (
"bytes"
"flag"
"fmt"
"go/format"
"io"
"log"
"os"
"regexp"
"sort"
"strconv"
"strings"
"text/tabwriter"
"text/template"
"time"
"encoding/csv"
"cloud.google.com/go/bigtable"
"cloud.google.com/go/bigtable/internal/cbtconfig"
"golang.org/x/net/context"
"google.golang.org/api/iterator"
"google.golang.org/api/option"
"google.golang.org/grpc"
)
var (
oFlag = flag.String("o", "", "if set, redirect stdout to this file")
config *cbtconfig.Config
client *bigtable.Client
adminClient *bigtable.AdminClient
instanceAdminClient *bigtable.InstanceAdminClient
version = "<unknown version>"
revision = "<unknown revision>"
revisionDate = "<unknown revision date>"
)
func getCredentialOpts(opts []option.ClientOption) []option.ClientOption {
if ts := config.TokenSource; ts != nil {
opts = append(opts, option.WithTokenSource(ts))
}
if tlsCreds := config.TLSCreds; tlsCreds != nil {
opts = append(opts, option.WithGRPCDialOption(grpc.WithTransportCredentials(tlsCreds)))
}
return opts
}
func getClient(clientConf bigtable.ClientConfig) *bigtable.Client {
if client == nil {
var opts []option.ClientOption
if ep := config.DataEndpoint; ep != "" {
opts = append(opts, option.WithEndpoint(ep))
}
opts = getCredentialOpts(opts)
var err error
client, err = bigtable.NewClientWithConfig(context.Background(), config.Project, config.Instance, clientConf, opts...)
if err != nil {
log.Fatalf("Making bigtable.Client: %v", err)
}
}
return client
}
func getAdminClient() *bigtable.AdminClient {
if adminClient == nil {
var opts []option.ClientOption
if ep := config.AdminEndpoint; ep != "" {
opts = append(opts, option.WithEndpoint(ep))
}
opts = getCredentialOpts(opts)
var err error
adminClient, err = bigtable.NewAdminClient(context.Background(), config.Project, config.Instance, opts...)
if err != nil {
log.Fatalf("Making bigtable.AdminClient: %v", err)
}
}
return adminClient
}
func getInstanceAdminClient() *bigtable.InstanceAdminClient {
if instanceAdminClient == nil {
var opts []option.ClientOption
if ep := config.AdminEndpoint; ep != "" {
opts = append(opts, option.WithEndpoint(ep))
}
opts = getCredentialOpts(opts)
var err error
instanceAdminClient, err = bigtable.NewInstanceAdminClient(context.Background(), config.Project, opts...)
if err != nil {
log.Fatalf("Making bigtable.InstanceAdminClient: %v", err)
}
}
return instanceAdminClient
}
func main() {
var err error
config, err = cbtconfig.Load()
if err != nil {
log.Fatal(err)
}
config.RegisterFlags()
flag.Usage = func() { usage(os.Stderr) }
flag.Parse()
if flag.NArg() == 0 {
usage(os.Stderr)
os.Exit(1)
}
if *oFlag != "" {
f, err := os.Create(*oFlag)
if err != nil {
log.Fatal(err)
}
defer func() {
if err := f.Close(); err != nil {
log.Fatal(err)
}
}()
os.Stdout = f
}
ctx := context.Background()
for _, cmd := range commands {
if cmd.Name == flag.Arg(0) {
if err := config.CheckFlags(cmd.Required); err != nil {
log.Fatal(err)
}
cmd.do(ctx, flag.Args()[1:]...)
return
}
}
log.Fatalf("Unknown command %q", flag.Arg(0))
}
func usage(w io.Writer) {
fmt.Fprintf(w, "Usage: %s [flags] <command> ...\n", os.Args[0])
flag.CommandLine.SetOutput(w)
flag.CommandLine.PrintDefaults()
fmt.Fprintf(w, "\n%s", cmdSummary)
}
var cmdSummary string // generated in init, below
func init() {
var buf bytes.Buffer
tw := tabwriter.NewWriter(&buf, 10, 8, 4, '\t', 0)
for _, cmd := range commands {
fmt.Fprintf(tw, "cbt %s\t%s\n", cmd.Name, cmd.Desc)
}
tw.Flush()
buf.WriteString(configHelp)
buf.WriteString("\ncbt ` + version + ` ` + revision + ` ` + revisionDate + `")
cmdSummary = buf.String()
}
var configHelp = `
Alpha features are not currently available to most Cloud Bigtable customers. The
features might be changed in backward-incompatible ways and are not recommended
for production use. They are not subject to any SLA or deprecation policy.
For convenience, values of the -project, -instance, -creds,
-admin-endpoint and -data-endpoint flags may be specified in
` + cbtconfig.Filename() + ` in this format:
project = my-project-123
instance = my-instance
creds = path-to-account-key.json
admin-endpoint = hostname:port
data-endpoint = hostname:port
All values are optional, and all will be overridden by flags.
`
var commands = []struct {
Name, Desc string
do func(context.Context, ...string)
Usage string
Required cbtconfig.RequiredFlags
}{
{
Name: "count",
Desc: "Count rows in a table",
do: doCount,
Usage: "cbt count <table>",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "createinstance",
Desc: "Create an instance with an initial cluster",
do: doCreateInstance,
Usage: "cbt createinstance <instance-id> <display-name> <cluster-id> <zone> <num-nodes> <storage type>\n" +
" instance-id Permanent, unique id for the instance\n" +
" display-name Description of the instance\n" +
" cluster-id Permanent, unique id for the cluster in the instance\n" +
" zone The zone in which to create the cluster\n" +
" num-nodes The number of nodes to create\n" +
" storage-type SSD or HDD\n",
Required: cbtconfig.ProjectRequired,
},
{
Name: "createcluster",
Desc: "Create a cluster in the configured instance (replication alpha)",
do: doCreateCluster,
Usage: "cbt createcluster <cluster-id> <zone> <num-nodes> <storage type>\n" +
" cluster-id Permanent, unique id for the cluster in the instance\n" +
" zone The zone in which to create the cluster\n" +
" num-nodes The number of nodes to create\n" +
" storage-type SSD or HDD\n",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "createfamily",
Desc: "Create a column family",
do: doCreateFamily,
Usage: "cbt createfamily <table> <family>",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "createtable",
Desc: "Create a table",
do: doCreateTable,
Usage: "cbt createtable <table> [families=family[:(maxage=<d> | maxversions=<n>)],...] [splits=split,...]\n" +
" families: Column families and their associated GC policies. See \"setgcpolicy\".\n" +
" Example: families=family1:maxage=1w,family2:maxversions=1\n" +
" splits: Row key to be used to initially split the table",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "updatecluster",
Desc: "Update a cluster in the configured instance",
do: doUpdateCluster,
Usage: "cbt updatecluster <cluster-id> [num-nodes=num-nodes]\n" +
" cluster-id Permanent, unique id for the cluster in the instance\n" +
" num-nodes The number of nodes to update to",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "deleteinstance",
Desc: "Deletes an instance",
do: doDeleteInstance,
Usage: "cbt deleteinstance <instance>",
Required: cbtconfig.ProjectRequired,
},
{
Name: "deletecluster",
Desc: "Deletes a cluster from the configured instance (replication alpha)",
do: doDeleteCluster,
Usage: "cbt deletecluster <cluster>",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "deletecolumn",
Desc: "Delete all cells in a column",
do: doDeleteColumn,
Usage: "cbt deletecolumn <table> <row> <family> <column> [app-profile=<app profile id>]\n" +
" app-profile=<app profile id> The app profile id to use for the request (replication alpha)\n",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "deletefamily",
Desc: "Delete a column family",
do: doDeleteFamily,
Usage: "cbt deletefamily <table> <family>",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "deleterow",
Desc: "Delete a row",
do: doDeleteRow,
Usage: "cbt deleterow <table> <row> [app-profile=<app profile id>]\n" +
" app-profile=<app profile id> The app profile id to use for the request (replication alpha)\n",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "deletetable",
Desc: "Delete a table",
do: doDeleteTable,
Usage: "cbt deletetable <table>",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "doc",
Desc: "Print godoc-suitable documentation for cbt",
do: doDoc,
Usage: "cbt doc",
Required: cbtconfig.NoneRequired,
},
{
Name: "help",
Desc: "Print help text",
do: doHelp,
Usage: "cbt help [command]",
Required: cbtconfig.NoneRequired,
},
{
Name: "listinstances",
Desc: "List instances in a project",
do: doListInstances,
Usage: "cbt listinstances",
Required: cbtconfig.ProjectRequired,
},
{
Name: "listclusters",
Desc: "List instances in an instance",
do: doListClusters,
Usage: "cbt listclusters",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "lookup",
Desc: "Read from a single row",
do: doLookup,
Usage: "cbt lookup <table> <row> [app-profile=<app profile id>]\n" +
" app-profile=<app profile id> The app profile id to use for the request (replication alpha)\n",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "ls",
Desc: "List tables and column families",
do: doLS,
Usage: "cbt ls List tables\n" +
"cbt ls <table> List column families in <table>",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "mddoc",
Desc: "Print documentation for cbt in Markdown format",
do: doMDDoc,
Usage: "cbt mddoc",
Required: cbtconfig.NoneRequired,
},
{
Name: "read",
Desc: "Read rows",
do: doRead,
Usage: "cbt read <table> [start=<row>] [end=<row>] [prefix=<prefix>]" +
" [regex=<regex>] [count=<n>] [app-profile=<app profile id>]\n" +
" start=<row> Start reading at this row\n" +
" end=<row> Stop reading before this row\n" +
" prefix=<prefix> Read rows with this prefix\n" +
" regex=<regex> Read rows with keys matching this regex\n" +
" count=<n> Read only this many rows\n" +
" app-profile=<app profile id> The app profile id to use for the request (replication alpha)\n",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "set",
Desc: "Set value of a cell",
do: doSet,
Usage: "cbt set <table> <row> [app-profile=<app profile id>] family:column=val[@ts] ...\n" +
" app-profile=<app profile id> The app profile id to use for the request (replication alpha)\n" +
" family:column=val[@ts] may be repeated to set multiple cells.\n" +
"\n" +
" ts is an optional integer timestamp.\n" +
" If it cannot be parsed, the `@ts` part will be\n" +
" interpreted as part of the value.",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "setgcpolicy",
Desc: "Set the GC policy for a column family",
do: doSetGCPolicy,
Usage: "cbt setgcpolicy <table> <family> ( maxage=<d> | maxversions=<n> )\n" +
"\n" +
` maxage=<d> Maximum timestamp age to preserve (e.g. "1h", "4d")` + "\n" +
" maxversions=<n> Maximum number of versions to preserve",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "waitforreplication",
Desc: "Blocks until all the completed writes have been replicated to all the clusters (replication alpha)",
do: doWaitForReplicaiton,
Usage: "cbt waitforreplication <table>",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "createtablefromsnapshot",
Desc: "Create a table from a snapshot (snapshots alpha)",
do: doCreateTableFromSnapshot,
Usage: "cbt createtablefromsnapshot <table> <cluster> <snapshot>\n" +
" table The name of the table to create\n" +
" cluster The cluster where the snapshot is located\n" +
" snapshot The snapshot to restore",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "createsnapshot",
Desc: "Create a snapshot from a source table (snapshots alpha)",
do: doSnapshotTable,
Usage: "cbt createsnapshot <cluster> <snapshot> <table> [ttl=<d>]\n" +
"\n" +
` [ttl=<d>] Lifespan of the snapshot (e.g. "1h", "4d")` + "\n",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "listsnapshots",
Desc: "List snapshots in a cluster (snapshots alpha)",
do: doListSnapshots,
Usage: "cbt listsnapshots [<cluster>]",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "getsnapshot",
Desc: "Get snapshot info (snapshots alpha)",
do: doGetSnapshot,
Usage: "cbt getsnapshot <cluster> <snapshot>",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "deletesnapshot",
Desc: "Delete snapshot in a cluster (snapshots alpha)",
do: doDeleteSnapshot,
Usage: "cbt deletesnapshot <cluster> <snapshot>",
Required: cbtconfig.ProjectAndInstanceRequired,
},
{
Name: "version",
Desc: "Print the current cbt version",
do: doVersion,
Usage: "cbt version",
Required: cbtconfig.NoneRequired,
},
}
func doCount(ctx context.Context, args ...string) {
if len(args) != 1 {
log.Fatal("usage: cbt count <table>")
}
tbl := getClient(bigtable.ClientConfig{}).Open(args[0])
n := 0
err := tbl.ReadRows(ctx, bigtable.InfiniteRange(""), func(_ bigtable.Row) bool {
n++
return true
}, bigtable.RowFilter(bigtable.StripValueFilter()))
if err != nil {
log.Fatalf("Reading rows: %v", err)
}
fmt.Println(n)
}
func doCreateTable(ctx context.Context, args ...string) {
if len(args) < 1 {
log.Fatal("usage: cbt createtable <table> [families=family[:gcpolicy],...] [splits=split,...]")
}
tblConf := bigtable.TableConf{TableID: args[0]}
for _, arg := range args[1:] {
i := strings.Index(arg, "=")
if i < 0 {
log.Fatalf("Bad arg %q", arg)
}
key, val := arg[:i], arg[i+1:]
chunks, err := csv.NewReader(strings.NewReader(val)).Read()
if err != nil {
log.Fatalf("Invalid families arg format: %v", err)
}
switch key {
default:
log.Fatalf("Unknown arg key %q", key)
case "families":
tblConf.Families = make(map[string]bigtable.GCPolicy)
for _, family := range chunks {
famPolicy := strings.Split(family, ":")
var gcPolicy bigtable.GCPolicy
if len(famPolicy) < 2 {
gcPolicy = bigtable.MaxVersionsPolicy(1)
log.Printf("Using default GC Policy of %v for family %v", gcPolicy, family)
} else {
gcPolicy, err = parseGCPolicy(famPolicy[1])
if err != nil {
log.Fatal(err)
}
}
tblConf.Families[famPolicy[0]] = gcPolicy
}
case "splits":
tblConf.SplitKeys = chunks
}
}
if err := getAdminClient().CreateTableFromConf(ctx, &tblConf); err != nil {
log.Fatalf("Creating table: %v", err)
}
}
func doCreateFamily(ctx context.Context, args ...string) {
if len(args) != 2 {
log.Fatal("usage: cbt createfamily <table> <family>")
}
err := getAdminClient().CreateColumnFamily(ctx, args[0], args[1])
if err != nil {
log.Fatalf("Creating column family: %v", err)
}
}
func doCreateInstance(ctx context.Context, args ...string) {
if len(args) < 6 {
log.Fatal("cbt createinstance <instance-id> <display-name> <cluster-id> <zone> <num-nodes> <storage type>")
}
numNodes, err := strconv.ParseInt(args[4], 0, 32)
if err != nil {
log.Fatalf("Bad num-nodes %q: %v", args[4], err)
}
sType, err := parseStorageType(args[5])
if err != nil {
log.Fatal(err)
}
ic := bigtable.InstanceWithClustersConfig{
InstanceID: args[0],
DisplayName: args[1],
Clusters: []bigtable.ClusterConfig{{
ClusterID: args[2],
Zone: args[3],
NumNodes: int32(numNodes),
StorageType: sType,
}},
}
err = getInstanceAdminClient().CreateInstanceWithClusters(ctx, &ic)
if err != nil {
log.Fatalf("Creating instance: %v", err)
}
}
func doCreateCluster(ctx context.Context, args ...string) {
if len(args) < 4 {
log.Fatal("usage: cbt createcluster <cluster-id> <zone> <num-nodes> <storage type>")
}
numNodes, err := strconv.ParseInt(args[2], 0, 32)
if err != nil {
log.Fatalf("Bad num_nodes %q: %v", args[2], err)
}
sType, err := parseStorageType(args[3])
if err != nil {
log.Fatal(err)
}
cc := bigtable.ClusterConfig{
InstanceID: config.Instance,
ClusterID: args[0],
Zone: args[1],
NumNodes: int32(numNodes),
StorageType: sType,
}
err = getInstanceAdminClient().CreateCluster(ctx, &cc)
if err != nil {
log.Fatalf("Creating cluster: %v", err)
}
}
func doUpdateCluster(ctx context.Context, args ...string) {
if len(args) < 2 {
log.Fatal("cbt updatecluster <cluster-id> [num-nodes=num-nodes]")
}
numNodes := int64(0)
var err error
for _, arg := range args[1:] {
i := strings.Index(arg, "=")
if i < 0 {
log.Fatalf("Bad arg %q", arg)
}
key, val := arg[:i], arg[i+1:]
switch key {
default:
log.Fatalf("Unknown arg key %q", key)
case "num-nodes":
numNodes, err = strconv.ParseInt(val, 0, 32)
if err != nil {
log.Fatalf("Bad num-nodes %q: %v", val, err)
}
}
}
if numNodes > 0 {
err = getInstanceAdminClient().UpdateCluster(ctx, config.Instance, args[0], int32(numNodes))
if err != nil {
log.Fatalf("Updating cluster: %v", err)
}
} else {
log.Fatal("Updating cluster: nothing to update")
}
}
func doDeleteInstance(ctx context.Context, args ...string) {
if len(args) != 1 {
log.Fatal("usage: cbt deleteinstance <instance>")
}
err := getInstanceAdminClient().DeleteInstance(ctx, args[0])
if err != nil {
log.Fatalf("Deleting instance: %v", err)
}
}
func doDeleteCluster(ctx context.Context, args ...string) {
if len(args) != 1 {
log.Fatal("usage: cbt deletecluster <cluster>")
}
err := getInstanceAdminClient().DeleteCluster(ctx, config.Instance, args[0])
if err != nil {
log.Fatalf("Deleting cluster: %v", err)
}
}
func doDeleteColumn(ctx context.Context, args ...string) {
usage := "usage: cbt deletecolumn <table> <row> <family> <column> [app-profile=<app profile id>]"
if len(args) != 4 || len(args) != 5 {
log.Fatal(usage)
}
var appProfile string
if len(args) == 5 {
if !strings.HasPrefix(args[4], "app-profile=") {
log.Fatal(usage)
}
appProfile = strings.Split(args[4], "=")[1]
}
tbl := getClient(bigtable.ClientConfig{AppProfile: appProfile}).Open(args[0])
mut := bigtable.NewMutation()
mut.DeleteCellsInColumn(args[2], args[3])
if err := tbl.Apply(ctx, args[1], mut); err != nil {
log.Fatalf("Deleting cells in column: %v", err)
}
}
func doDeleteFamily(ctx context.Context, args ...string) {
if len(args) != 2 {
log.Fatal("usage: cbt deletefamily <table> <family>")
}
err := getAdminClient().DeleteColumnFamily(ctx, args[0], args[1])
if err != nil {
log.Fatalf("Deleting column family: %v", err)
}
}
func doDeleteRow(ctx context.Context, args ...string) {
usage := "usage: cbt deleterow <table> <row> [app-profile=<app profile id>]"
if len(args) != 2 || len(args) != 3 {
log.Fatal(usage)
}
var appProfile string
if len(args) == 3 {
if !strings.HasPrefix(args[2], "app-profile=") {
log.Fatal(usage)
}
appProfile = strings.Split(args[2], "=")[1]
}
tbl := getClient(bigtable.ClientConfig{AppProfile: appProfile}).Open(args[0])
mut := bigtable.NewMutation()
mut.DeleteRow()
if err := tbl.Apply(ctx, args[1], mut); err != nil {
log.Fatalf("Deleting row: %v", err)
}
}
func doDeleteTable(ctx context.Context, args ...string) {
if len(args) != 1 {
log.Fatalf("Can't do `cbt deletetable %s`", args)
}
err := getAdminClient().DeleteTable(ctx, args[0])
if err != nil {
log.Fatalf("Deleting table: %v", err)
}
}
// to break circular dependencies
var (
doDocFn func(ctx context.Context, args ...string)
doHelpFn func(ctx context.Context, args ...string)
doMDDocFn func(ctx context.Context, args ...string)
)
func init() {
doDocFn = doDocReal
doHelpFn = doHelpReal
doMDDocFn = doMDDocReal
}
func doDoc(ctx context.Context, args ...string) { doDocFn(ctx, args...) }
func doHelp(ctx context.Context, args ...string) { doHelpFn(ctx, args...) }
func doMDDoc(ctx context.Context, args ...string) { doMDDocFn(ctx, args...) }
func docFlags() []*flag.Flag {
// Only include specific flags, in a specific order.
var flags []*flag.Flag
for _, name := range []string{"project", "instance", "creds"} {
f := flag.Lookup(name)
if f == nil {
log.Fatalf("Flag not linked: -%s", name)
}
flags = append(flags, f)
}
return flags
}
func doDocReal(ctx context.Context, args ...string) {
data := map[string]interface{}{
"Commands": commands,
"Flags": docFlags(),
"ConfigHelp": configHelp,
}
var buf bytes.Buffer
if err := docTemplate.Execute(&buf, data); err != nil {
log.Fatalf("Bad doc template: %v", err)
}
out, err := format.Source(buf.Bytes())
if err != nil {
log.Fatalf("Bad doc output: %v", err)
}
os.Stdout.Write(out)
}
func indentLines(s, ind string) string {
ss := strings.Split(s, "\n")
for i, p := range ss {
ss[i] = ind + p
}
return strings.Join(ss, "\n")
}
var docTemplate = template.Must(template.New("doc").Funcs(template.FuncMap{
"indent": indentLines,
}).
Parse(`
// Copyright 2016 Google Inc. All Rights Reserved.
//
// 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.
// DO NOT EDIT. THIS IS AUTOMATICALLY GENERATED.
// Run "go generate" to regenerate.
//go:generate go run cbt.go -o cbtdoc.go doc
/*
Cbt is a tool for doing basic interactions with Cloud Bigtable. To learn how to
install the cbt tool, see the
[cbt overview](https://cloud.google.com/bigtable/docs/go/cbt-overview).
Usage:
cbt [options] command [arguments]
The commands are:
{{range .Commands}}
{{printf "%-25s %s" .Name .Desc}}{{end}}
Use "cbt help <command>" for more information about a command.
The options are:
{{range .Flags}}
-{{.Name}} string
{{.Usage}}{{end}}
{{.ConfigHelp}}
{{range .Commands}}
{{.Desc}}
Usage:
{{indent .Usage "\t"}}
{{end}}
*/
package main
`))
func doHelpReal(ctx context.Context, args ...string) {
if len(args) == 0 {
usage(os.Stdout)
return
}
for _, cmd := range commands {
if cmd.Name == args[0] {
fmt.Println(cmd.Usage)
return
}
}
log.Fatalf("Don't know command %q", args[0])
}
func doListInstances(ctx context.Context, args ...string) {
if len(args) != 0 {
log.Fatalf("usage: cbt listinstances")
}
is, err := getInstanceAdminClient().Instances(ctx)
if err != nil {
log.Fatalf("Getting list of instances: %v", err)
}
tw := tabwriter.NewWriter(os.Stdout, 10, 8, 4, '\t', 0)
fmt.Fprintf(tw, "Instance Name\tInfo\n")
fmt.Fprintf(tw, "-------------\t----\n")
for _, i := range is {
fmt.Fprintf(tw, "%s\t%s\n", i.Name, i.DisplayName)
}
tw.Flush()
}
func doListClusters(ctx context.Context, args ...string) {
if len(args) != 0 {
log.Fatalf("usage: cbt listclusters")
}
cis, err := getInstanceAdminClient().Clusters(ctx, config.Instance)
if err != nil {
log.Fatalf("Getting list of clusters: %v", err)
}
tw := tabwriter.NewWriter(os.Stdout, 10, 8, 4, '\t', 0)
fmt.Fprintf(tw, "Cluster Name\tZone\tState\n")
fmt.Fprintf(tw, "------------\t----\t----\n")
for _, ci := range cis {
fmt.Fprintf(tw, "%s\t%s\t%s (%d serve nodes)\n", ci.Name, ci.Zone, ci.State, ci.ServeNodes)
}
tw.Flush()
}
func doLookup(ctx context.Context, args ...string) {
if len(args) < 2 {
log.Fatalf("usage: cbt lookup <table> <row> [app-profile=<app profile id>]")
}
var appProfile string
if len(args) > 2 {
i := strings.Index(args[2], "=")
if i < 0 {
log.Fatalf("Bad arg %q", args[2])
}
appProfile = strings.Split(args[2], "=")[1]
}
table, row := args[0], args[1]
tbl := getClient(bigtable.ClientConfig{AppProfile: appProfile}).Open(table)
r, err := tbl.ReadRow(ctx, row)
if err != nil {
log.Fatalf("Reading row: %v", err)
}
printRow(r)
}
func printRow(r bigtable.Row) {
fmt.Println(strings.Repeat("-", 40))
fmt.Println(r.Key())
var fams []string
for fam := range r {
fams = append(fams, fam)
}
sort.Strings(fams)
for _, fam := range fams {
ris := r[fam]
sort.Sort(byColumn(ris))
for _, ri := range ris {
ts := time.Unix(0, int64(ri.Timestamp)*1e3)
fmt.Printf(" %-40s @ %s\n", ri.Column, ts.Format("2006/01/02-15:04:05.000000"))
fmt.Printf(" %q\n", ri.Value)
}
}
}
type byColumn []bigtable.ReadItem
func (b byColumn) Len() int { return len(b) }
func (b byColumn) Swap(i, j int) { b[i], b[j] = b[j], b[i] }
func (b byColumn) Less(i, j int) bool { return b[i].Column < b[j].Column }
type byFamilyName []bigtable.FamilyInfo
func (b byFamilyName) Len() int { return len(b) }
func (b byFamilyName) Swap(i, j int) { b[i], b[j] = b[j], b[i] }
func (b byFamilyName) Less(i, j int) bool { return b[i].Name < b[j].Name }
func doLS(ctx context.Context, args ...string) {
switch len(args) {
default:
log.Fatalf("Can't do `cbt ls %s`", args)
case 0:
tables, err := getAdminClient().Tables(ctx)
if err != nil {
log.Fatalf("Getting list of tables: %v", err)
}
sort.Strings(tables)
for _, table := range tables {
fmt.Println(table)
}
case 1:
table := args[0]
ti, err := getAdminClient().TableInfo(ctx, table)
if err != nil {
log.Fatalf("Getting table info: %v", err)
}
sort.Sort(byFamilyName(ti.FamilyInfos))
tw := tabwriter.NewWriter(os.Stdout, 10, 8, 4, '\t', 0)
fmt.Fprintf(tw, "Family Name\tGC Policy\n")
fmt.Fprintf(tw, "-----------\t---------\n")
for _, fam := range ti.FamilyInfos {
fmt.Fprintf(tw, "%s\t%s\n", fam.Name, fam.GCPolicy)
}
tw.Flush()
}
}
func doMDDocReal(ctx context.Context, args ...string) {
data := map[string]interface{}{
"Commands": commands,
"Flags": docFlags(),
"ConfigHelp": configHelp,
}
var buf bytes.Buffer
if err := mddocTemplate.Execute(&buf, data); err != nil {
log.Fatalf("Bad mddoc template: %v", err)
}
io.Copy(os.Stdout, &buf)
}
var mddocTemplate = template.Must(template.New("mddoc").Funcs(template.FuncMap{
"indent": indentLines,
}).
Parse(`
Cbt is a tool for doing basic interactions with Cloud Bigtable.
Usage:
cbt [options] command [arguments]
The commands are:
{{range .Commands}}
{{printf "%-25s %s" .Name .Desc}}{{end}}
Use "cbt help <command>" for more information about a command.
The options are:
{{range .Flags}}
-{{.Name}} string
{{.Usage}}{{end}}
{{.ConfigHelp}}
{{range .Commands}}
## {{.Desc}}
{{indent .Usage "\t"}}
{{end}}
`))
func doRead(ctx context.Context, args ...string) {
if len(args) < 1 {
log.Fatalf("usage: cbt read <table> [args ...]")
}
parsed := make(map[string]string)
for _, arg := range args[1:] {
i := strings.Index(arg, "=")
if i < 0 {
log.Fatalf("Bad arg %q", arg)
}
key, val := arg[:i], arg[i+1:]
switch key {
default:
log.Fatalf("Unknown arg key %q", key)
case "limit":
// Be nicer; we used to support this, but renamed it to "end".
log.Fatalf("Unknown arg key %q; did you mean %q?", key, "end")
case "start", "end", "prefix", "count", "regex", "app-profile":
parsed[key] = val
}