-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathatom.xml
More file actions
1535 lines (1301 loc) · 104 KB
/
atom.xml
File metadata and controls
1535 lines (1301 loc) · 104 KB
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
<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<title><![CDATA[Silex Blog]]></title>
<link href="http://silexkr.github.com/atom.xml" rel="self"/>
<link href="http://silexkr.github.com/"/>
<updated>2012-02-21T11:55:46+09:00</updated>
<id>http://silexkr.github.com/</id>
<author>
<name><![CDATA[Silex]]></name>
</author>
<generator uri="http://octopress.org/">Octopress</generator>
<entry>
<title type="html"><![CDATA[IRC bot]]></title>
<link href="http://silexkr.github.com/blog/2012/02/21/irc-bot/"/>
<updated>2012-02-21T10:06:00+09:00</updated>
<id>http://silexkr.github.com/blog/2012/02/21/irc-bot</id>
<content type="html"><![CDATA[<p>IRC 에는 많은 봇들이 살고 있습니다.</p>
<p>봇은 일반적으로 regex rule과 callback을 등록해두고 해당하는 대화
내용이 나오면 callback 이 실행되는 구조를 가집니다.</p>
<p>여기서는 두개의 오픈소스 봇을 소개하고 어떻게 deploy 할 것인지에 대해
다룹니다.</p>
<h2>Hongbot</h2>
<p><a href="http://search.cpan.org/~mlehmann/AnyEvent-6.14/lib/AnyEvent.pm">AnyEvent</a> 모듈 기반이고 perl로 만들어졌습니다.</p>
<p><a href="http://search.cpan.org/~dmaki/Morris-0.01000_01/lib/Morris.pm">Morris</a> -> <a href="http://search.cpan.org/~aanoaa/Horris-v0.1.2/lib/Horris.pm">Horris</a> -> <a href="https://github.com/aanoaa/Hongbot">Hongbot</a> 의 계보를
가지고 있습니다. plugin 파일을 만들어서 확장할 수 있습니다.</p>
<h3>plugins</h3>
<ul>
<li>Ascii</li>
<li>Eval</li>
<li>Hello</li>
<li>Mac</li>
<li>Map</li>
<li>MetaCPAN</li>
<li>Mustache</li>
<li>Shorten</li>
<li>Twitter</li>
<li>Youtube</li>
</ul>
<h3>run</h3>
<figure class='code'><figcaption><span></span></figcaption><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
<span class='line-number'>4</span>
<span class='line-number'>5</span>
</pre></td><td class='code'><pre><code class='bash'><span class='line'><span class="nv">$ </span>git clone git@github.com:aanoaa/Hongbot.git
</span><span class='line'><span class="nv">$ </span><span class="nb">cd </span>Hongbot/
</span><span class='line'><span class="nv">$ </span>carton install <span class="c"># Carton 이 설치되어 잇어야..</span>
</span><span class='line'><span class="nv">$ </span>vim conf/hongbot.conf <span class="c"># 서버, 채널, password 등을 변경해야..</span>
</span><span class='line'><span class="nv">$ </span>./run
</span></code></pre></td></tr></table></div></figure>
<h2>hubot</h2>
<p><a href="https://github.com/">Github</a>에서 공개한 CoffeeScript 로 쓰여진 node.js 기반의 bot
입니다. core인 <a href="https://github.com/github/hubot">hubot</a> 이 있고 <a href="https://github.com/github/hubot-scripts">hubot-scripts</a>
를 통해 확장 가능합니다. adapter 를 설정해서 irc 뿐만아니라 campfire,
gtalk 에서도 사용가능 합니다. 물론 adapter 또한 확장 가능 합니다.</p>
<h3>scripts</h3>
<p><a href="http://hubot-script-catalog.herokuapp.com/">hubot-scripts catalog</a></p>
<h3>지속가능한 운영의 묘</h3>
<p><a href="https://github.com/github/hubot">hubot</a>의 README 를 보면 tarball 을 Download 받아서 하라고
하는데, 그렇게 하면 npm을 통해서 <a href="http://search.npmjs.org/#/hubot-scripts">hubot-scripts</a>
가 설치되기 때문에 자신의 확장 scripts 를 사용할 수 없습니다.</p>
<p>해서,</p>
<figure class='code'><figcaption><span></span></figcaption><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
<span class='line-number'>4</span>
<span class='line-number'>5</span>
<span class='line-number'>6</span>
<span class='line-number'>7</span>
<span class='line-number'>8</span>
<span class='line-number'>9</span>
<span class='line-number'>10</span>
<span class='line-number'>11</span>
<span class='line-number'>12</span>
<span class='line-number'>13</span>
<span class='line-number'>14</span>
<span class='line-number'>15</span>
<span class='line-number'>16</span>
<span class='line-number'>17</span>
<span class='line-number'>18</span>
</pre></td><td class='code'><pre><code class='bash'><span class='line'><span class="nv">$ </span>git clone https://github.com/github/hubot.git
</span><span class='line'><span class="nv">$ </span>git clone https://github.com/github/hubot-scripts.git
</span><span class='line'><span class="nv">$ </span><span class="nb">cd </span>hubot-scripts/
</span><span class='line'><span class="nv">$ </span>npm install <span class="c"># npm 이 설치되어 잇어야 합니다.</span>
</span><span class='line'><span class="nv">$ </span><span class="nb">cd</span> ../
</span><span class='line'><span class="nv">$ </span><span class="nb">cd </span>hubot/
</span><span class='line'><span class="nv">$ </span>mkdir /path/to/deploy/hubot
</span><span class='line'><span class="nv">$ </span>./bin/hubot -c /path/to/deploy/hubot
</span><span class='line'><span class="nv">$ </span><span class="nb">cd</span> /path/to/deploy/hubot
</span><span class='line'><span class="nv">$ </span>npm install
</span><span class='line'><span class="nv">$ </span><span class="nb">cd </span>node_modules
</span><span class='line'><span class="nv">$ </span>rm -rf hubot-scripts/ <span class="c"># npm의 hubot-scripts 대신에 clone 받은 hubot-scripts 를 사용합니다.</span>
</span><span class='line'><span class="nv">$ </span>ln -s /path/to/hubot-scripts hubot-scripts <span class="c"># 아까 clone 받은 repo</span>
</span><span class='line'><span class="nv">$ </span><span class="nb">cd</span> ../
</span><span class='line'><span class="nv">$ </span>vim hubot-scripts.json
</span><span class='line'> <span class="c"># /path/to/hubot-scripts/src/scripts/*.coffee 사용가능</span>
</span><span class='line'> <span class="c"># ["foo.coffee", "bar.coffee"] 등등..</span>
</span><span class='line'><span class="nv">$ </span>./bin/hubot
</span></code></pre></td></tr></table></div></figure>
<p><a href="https://github.com/github/hubot-scripts">hubot-scripts</a>를 fork 해서 사용하는게 유리합니다.
github:hubot-scripts 를 remote 로 등록해서 꾸준히 추가되는 script를
쓸수도 있고 내가 작성한 script도 쓸 수 있으니까여</p>
<h2>plugin, script 의 단순함 비교</h2>
<h3>hongbot Eval.pm</h3>
<figure class='code'><figcaption><span></span></figcaption><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
<span class='line-number'>4</span>
<span class='line-number'>5</span>
<span class='line-number'>6</span>
<span class='line-number'>7</span>
<span class='line-number'>8</span>
<span class='line-number'>9</span>
<span class='line-number'>10</span>
<span class='line-number'>11</span>
<span class='line-number'>12</span>
<span class='line-number'>13</span>
<span class='line-number'>14</span>
<span class='line-number'>15</span>
<span class='line-number'>16</span>
<span class='line-number'>17</span>
<span class='line-number'>18</span>
<span class='line-number'>19</span>
<span class='line-number'>20</span>
<span class='line-number'>21</span>
<span class='line-number'>22</span>
<span class='line-number'>23</span>
<span class='line-number'>24</span>
<span class='line-number'>25</span>
<span class='line-number'>26</span>
<span class='line-number'>27</span>
<span class='line-number'>28</span>
<span class='line-number'>29</span>
<span class='line-number'>30</span>
<span class='line-number'>31</span>
<span class='line-number'>32</span>
<span class='line-number'>33</span>
<span class='line-number'>34</span>
<span class='line-number'>35</span>
<span class='line-number'>36</span>
<span class='line-number'>37</span>
<span class='line-number'>38</span>
<span class='line-number'>39</span>
<span class='line-number'>40</span>
<span class='line-number'>41</span>
<span class='line-number'>42</span>
<span class='line-number'>43</span>
<span class='line-number'>44</span>
<span class='line-number'>45</span>
</pre></td><td class='code'><pre><code class='perl'><span class='line'><span class="nb">package</span> <span class="nn">Hongbot::Plugin::</span><span class="n">Eval</span><span class="p">;</span>
</span><span class='line'><span class="k">use</span> <span class="n">URI</span><span class="p">;</span>
</span><span class='line'><span class="k">use</span> <span class="n">JSON</span><span class="p">;</span>
</span><span class='line'><span class="k">use</span> <span class="n">Moose</span><span class="p">;</span>
</span><span class='line'><span class="k">use</span> <span class="nn">AnyEvent::</span><span class="n">HTTP</span><span class="p">;</span>
</span><span class='line'><span class="k">use</span> <span class="nn">namespace::</span><span class="n">autoclean</span><span class="p">;</span>
</span><span class='line'><span class="n">extends</span> <span class="s">'Hongbot::Plugin'</span><span class="p">;</span>
</span><span class='line'><span class="n">with</span> <span class="s">'MooseX::Role::Pluggable::Plugin'</span><span class="p">;</span>
</span><span class='line'>
</span><span class='line'><span class="n">has</span> <span class="n">uri</span> <span class="o">=></span> <span class="p">(</span>
</span><span class='line'> <span class="n">is</span> <span class="o">=></span> <span class="s">'ro'</span><span class="p">,</span>
</span><span class='line'> <span class="n">isa</span> <span class="o">=></span> <span class="s">'URI'</span><span class="p">,</span>
</span><span class='line'> <span class="n">default</span> <span class="o">=></span> <span class="k">sub </span><span class="p">{</span> <span class="n">URI</span><span class="o">-></span><span class="k">new</span><span class="p">(</span><span class="s">"http://api.dan.co.jp/lleval.cgi"</span><span class="p">)</span> <span class="p">},</span>
</span><span class='line'><span class="p">);</span>
</span><span class='line'>
</span><span class='line'><span class="n">has</span> <span class="n">prefix</span> <span class="o">=></span> <span class="p">(</span><span class="n">is</span> <span class="o">=></span> <span class="s">'ro'</span><span class="p">,</span> <span class="n">isa</span> <span class="o">=></span> <span class="s">'Str'</span><span class="p">,</span> <span class="n">default</span> <span class="o">=></span> <span class="s">"#!/usr/bin/perl\n"</span><span class="p">);</span>
</span><span class='line'>
</span><span class='line'><span class="n">override</span> <span class="s">'usage'</span> <span class="o">=></span> <span class="k">sub </span><span class="p">{</span> <span class="nb">sprintf</span><span class="p">(</span><span class="s">"%s: eval <PERL_CODE>"</span><span class="p">,</span> <span class="nv">$_</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">-></span><span class="n">parent</span><span class="o">-></span><span class="n">name</span><span class="p">)</span> <span class="p">};</span>
</span><span class='line'><span class="n">override</span> <span class="s">'regex'</span> <span class="o">=></span> <span class="k">sub </span><span class="p">{</span> <span class="sx">qr/^eval\s+/</span><span class="n">i</span> <span class="p">};</span>
</span><span class='line'>
</span><span class='line'><span class="k">sub </span><span class="nf">respond</span> <span class="p">{</span>
</span><span class='line'> <span class="k">my</span> <span class="p">(</span><span class="nv">$self</span><span class="p">,</span> <span class="nv">$cl</span><span class="p">,</span> <span class="nv">$channel</span><span class="p">,</span> <span class="nv">$nickname</span><span class="p">,</span> <span class="nv">$msg</span><span class="p">)</span> <span class="o">=</span> <span class="nv">@_</span><span class="p">;</span>
</span><span class='line'>
</span><span class='line'> <span class="nv">$msg</span> <span class="o">=</span> <span class="nv">$self</span><span class="o">-></span><span class="n">rm_prefix</span><span class="p">(</span><span class="nv">$self</span><span class="o">-></span><span class="n">regex</span><span class="p">,</span> <span class="nv">$msg</span><span class="p">);</span>
</span><span class='line'> <span class="k">return</span> <span class="k">unless</span> <span class="nv">$msg</span><span class="p">;</span>
</span><span class='line'>
</span><span class='line'> <span class="nv">$msg</span> <span class="o">=</span> <span class="nv">$self</span><span class="o">-></span><span class="n">prefix</span> <span class="o">.</span> <span class="nv">$msg</span><span class="p">;</span>
</span><span class='line'> <span class="nv">$self</span><span class="o">-></span><span class="n">uri</span><span class="o">-></span><span class="n">query_form</span><span class="p">(</span><span class="n">s</span> <span class="o">=></span> <span class="nv">$msg</span><span class="p">);</span>
</span><span class='line'> <span class="k">my</span> <span class="nv">$guard</span><span class="p">;</span> <span class="nv">$guard</span> <span class="o">=</span> <span class="n">http_get</span> <span class="nv">$self</span><span class="o">-></span><span class="n">uri</span><span class="p">,</span> <span class="k">sub </span><span class="p">{</span>
</span><span class='line'> <span class="nb">undef</span> <span class="nv">$guard</span><span class="p">;</span>
</span><span class='line'> <span class="k">my</span> <span class="p">(</span><span class="nv">$body</span><span class="p">,</span> <span class="nv">$headers</span><span class="p">)</span> <span class="o">=</span> <span class="nv">@_</span><span class="p">;</span>
</span><span class='line'> <span class="k">if</span> <span class="p">(</span><span class="nv">$headers</span><span class="o">-></span><span class="p">{</span><span class="n">Status</span><span class="p">}</span> <span class="o">=~</span> <span class="sr">m/^2/</span><span class="p">)</span> <span class="p">{</span>
</span><span class='line'> <span class="k">my</span> <span class="nv">$scalar</span> <span class="o">=</span> <span class="nn">JSON::</span><span class="n">from_json</span><span class="p">(</span><span class="nv">$body</span><span class="p">);</span>
</span><span class='line'> <span class="k">my</span> <span class="nv">@eval</span><span class="p">;</span>
</span><span class='line'> <span class="nb">map</span> <span class="p">{</span> <span class="nb">push</span> <span class="nv">@eval</span><span class="p">,</span> <span class="s">"$_: $scalar->{$_}"</span> <span class="p">}</span> <span class="sx">qw/lang status stderr stdout syscalls time/</span><span class="p">;</span>
</span><span class='line'> <span class="nv">$self</span><span class="o">-></span><span class="n">to_channel</span><span class="p">(</span><span class="nv">$cl</span><span class="p">,</span> <span class="nv">$channel</span><span class="p">,</span> <span class="nv">@eval</span><span class="p">);</span>
</span><span class='line'> <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
</span><span class='line'> <span class="nv">$self</span><span class="o">-></span><span class="n">to_channel</span><span class="p">(</span><span class="nv">$cl</span><span class="p">,</span> <span class="nv">$channel</span><span class="p">,</span> <span class="nb">sprintf</span><span class="p">(</span><span class="s">"httpCode: %d"</span><span class="p">,</span> <span class="nv">$headers</span><span class="o">-></span><span class="p">{</span><span class="n">Status</span><span class="p">}));</span>
</span><span class='line'> <span class="p">}</span>
</span><span class='line'> <span class="p">};</span>
</span><span class='line'><span class="p">}</span>
</span><span class='line'>
</span><span class='line'><span class="n">__PACKAGE__</span><span class="o">-></span><span class="n">meta</span><span class="o">-></span><span class="n">make_immutable</span><span class="p">;</span>
</span><span class='line'>
</span><span class='line'><span class="mi">1</span><span class="p">;</span>
</span></code></pre></td></tr></table></div></figure>
<h3>hubot eval.coffee</h3>
<figure class='code'><figcaption><span></span></figcaption><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
<span class='line-number'>4</span>
<span class='line-number'>5</span>
<span class='line-number'>6</span>
<span class='line-number'>7</span>
<span class='line-number'>8</span>
<span class='line-number'>9</span>
<span class='line-number'>10</span>
<span class='line-number'>11</span>
<span class='line-number'>12</span>
</pre></td><td class='code'><pre><code class='coffeescript'><span class='line'><span class="c1"># evaluate code.</span>
</span><span class='line'><span class="c1">#</span>
</span><span class='line'><span class="c1"># eval me <lang> <code> - evaluate <code> and show the result.</span>
</span><span class='line'>
</span><span class='line'><span class="nv">module.exports = </span><span class="nf">(robot) -></span>
</span><span class='line'> <span class="nx">robot</span><span class="p">.</span><span class="nx">respond</span> <span class="sr">/eval( me)? ([^ ]+) (.+)/i</span><span class="p">,</span> <span class="nf">(msg) -></span>
</span><span class='line'> <span class="nx">msg</span>
</span><span class='line'> <span class="p">.</span><span class="nx">http</span><span class="p">(</span><span class="s2">"http://api.dan.co.jp/lleval.cgi"</span><span class="p">)</span>
</span><span class='line'> <span class="p">.</span><span class="nx">query</span><span class="p">(</span><span class="nv">s: </span><span class="s2">"#!/usr/bin/#{msg.match[2]}\n#{msg.match[3]}"</span><span class="p">)</span>
</span><span class='line'> <span class="p">.</span><span class="nx">get</span><span class="p">()</span> <span class="nf">(err, res, body) -></span>
</span><span class='line'> <span class="nv">out = </span><span class="nx">JSON</span><span class="p">.</span><span class="nx">parse</span><span class="p">(</span><span class="nx">body</span><span class="p">)</span>
</span><span class='line'> <span class="nx">msg</span><span class="p">.</span><span class="nx">send</span> <span class="k">if</span> <span class="nx">out</span><span class="p">.</span><span class="nx">stderr</span> <span class="k">then</span> <span class="nx">out</span><span class="p">.</span><span class="nx">stderr</span> <span class="k">else</span> <span class="nx">out</span><span class="p">.</span><span class="nx">stdout</span>
</span></code></pre></td></tr></table></div></figure>
<p>네 <a href="https://github.com/github/hubot">hubot</a> 이 훨씬 단순합니다.
core 의 설계가 더 유연하고 잘되어 있어서 그렇다고 생각합니다.
<a href="https://github.com/aanoaa/Hongbot">Hongbot</a>은 저혼자 하고 <a href="https://github.com/github/hubot">hubot</a>은 세계의 여러 해커들이
참여하는 프로젝트니까 뭐 비교하면 저만
초라해집니다. <a href="https://github.com/aanoaa/Hongbot">Hongbot</a>의 core 를 업그레이드 시켜서
<a href="https://github.com/github/hubot">hubot</a> 만큼 단순하게 plugin 을 작성할 수 있게 하면 좋은 plugin
들이 많이 생겨날 것으로 생각합니다. repo 와 deploy 디렉토리를 따로
둘수 있게 만든 점 또한 <a href="https://github.com/github/hubot">hubot</a>++ 입니다. 배울게 참 많습니다.</p>
<h2>결론</h2>
<p>여보 아버님채널에 bot 한마리 놔드려야 겠어요</p>
<h2>See also</h2>
<ul>
<li><a href="http://theprogrammingbutler.com/blog/archives/2011/10/28/hubot-scripts-explained/">hubot Scripts Explained</a></li>
</ul>
]]></content>
</entry>
<entry>
<title type="html"><![CDATA[Guest Speech #1 - G사 S님]]></title>
<link href="http://silexkr.github.com/blog/2012/02/19/guest-speech-number-1/"/>
<updated>2012-02-19T16:55:00+09:00</updated>
<id>http://silexkr.github.com/blog/2012/02/19/guest-speech-number-1</id>
<content type="html"><![CDATA[<p> 지난 13일 CEO @y0gnbin 의 지인인 G 사 S모님을 초청해서 <code>서버 가상화</code>에 대한 이런 저런 얘기를 들을 수 있었습니다.</p>
<p> 실제로 CentOS 5.7 에 기본으로 세팅된 환경 아래에서 실제로 Dom-U 를 만드는 과정과 주의점 등등에 대한 이야기가 주를 이뤘습니다.</p>
<p> 물론 그 뒤에는 단순히 Xen 환경 구축에 관한 이야기 뿐만 아니라, G 사에 Xen 을 도입한 이야기, 그리고 G 사에서 오픈소스를 본격적으로 채용함으로 얻은 이런저런 메리트. 그리고 작은 회사에서는 감히 엄두도 못 낼 장비 스펙과 비용, 많은 성공사례와 오픈소스 도입에 이르기까지의 계측된 데이터와 검증 방법…</p>
<p> 또한 서버구입시에 참고할 만한 스펙비교 방법도 전수받게 되었습니다.</p>
<ul>
<li><a href="http://www.spec.org/">http://www.spec.org/</a></li>
</ul>
<p> 아무튼 이런저런 돈주고도 쉽게 못 들을 이런저런 얘기는 장소를 바꿔가며 새벽 2시까지 이어갔고, 그때가 되어서야 해산을 했습니다.</p>
<p> <blockquote class="twitter-tweet"><p>Silex 외부연사 초청 강연회 준비… w/ @<a href="https://twitter.com/luzluna">luzluna</a> @<a href="https://twitter.com/keedi">keedi</a> @<a href="https://twitter.com/y0ngbin">y0ngbin</a> @<a href="https://twitter.com/rumidier">rumidier</a></p>— JEEN (@JEEN_LEE) <a href="https://twitter.com/JEEN_LEE/status/169021093208788992" data-datetime="2012-02-13T11:32:23+00:00">February 13, 2012</a></blockquote></p>
<blockquote class="twitter-tweet"><p>silex 외부연사 초청강연 및 간담회 끝</p>— JEEN (@JEEN_LEE) <a href="https://twitter.com/JEEN_LEE/status/169082207439298563" data-datetime="2012-02-13T15:35:14+00:00">February 13, 2012</a></blockquote>
<blockquote class="twitter-tweet"><p>w/ @<a href="https://twitter.com/luzluna">luzluna</a> @<a href="https://twitter.com/keedi">keedi</a> @<a href="https://twitter.com/y0ngbin">y0ngbin</a> shs님 (@ Caffé bene) [pic]: <a href="http://t.co/vla9d6P2" title="http://4sq.com/xYJMn7">4sq.com/xYJMn7</a></p>— JEEN (@JEEN_LEE) <a href="https://twitter.com/JEEN_LEE/status/169085458905702402" data-datetime="2012-02-13T15:48:09+00:00">February 13, 2012</a></blockquote>
<blockquote class="twitter-tweet"><p>간담회 2차끝. 귀가</p>— JEEN (@JEEN_LEE) <a href="https://twitter.com/JEEN_LEE/status/169104418652946432" data-datetime="2012-02-13T17:03:29+00:00">February 13, 2012</a></blockquote>
]]></content>
</entry>
<entry>
<title type="html"><![CDATA[backbone.js]]></title>
<link href="http://silexkr.github.com/blog/2012/02/17/backbone-dot-js/"/>
<updated>2012-02-17T19:39:00+09:00</updated>
<id>http://silexkr.github.com/blog/2012/02/17/backbone-dot-js</id>
<content type="html"><![CDATA[<h2>배경</h2>
<p>아 <a href="http://documentcloud.github.com/backbone/">backbone.js</a> 가 만들어진 배경이 아니라, 제가 사용하게 된
배경입니다. 회사에서 진행하는 <code>javascript</code> 를 나름 무겁게 사용하는
프로젝트가 있습니다. “갑”님의 요구사항이 날이 갈수록 복잡해 짐에 따라
<code>jquery</code> 플러그인도 맨들고, <code>require.js</code> 를 사용해서 파일을 조직화해서
사용하고 있었습니다만 <code>$.ajax</code> 에 대한 callback 이 늘어남에 따라 점점
코드의 복잡도가 증가해서 해결해야 될 문제라고 생각했습니다.</p>
<p><a href="https://trello.com/">Trello</a> 에서
<a href="http://blog.fogcreek.com/the-trello-tech-stack/">The Trello Tech Stack</a>
<a href="http://documentcloud.github.com/backbone/">backbone.js</a>를 쓴다는 글을 보고 사용방법을 좀
알아보았습니다.</p>
<p><img src="http://blog.fogcreek.com/wp-content/uploads/2012/01/trello-freehand.jpg" alt="Trello Early Architecture Drawing" /></p>
<h2>자세한 설명은 (몰라서)생략</h2>
<p>왜 쓰는지 뭔가 좋은지 그런거 모릅니다. 여기서는 어떻게 사용하는지만
다룹니다. 검색 ㄱㄱ</p>
<p><img src="https://lh5.googleusercontent.com/-i82V0GanZr4/T0IfDIDWq6I/AAAAAAAAABY/VnAii_7ds5E/no_more_details.jpg" alt="자세한 설명은 생략한다" /></p>
<h2>맨든사람</h2>
<p><a href="https://twitter.com/#!/jashkenas">Jeremy Ashkenas - Twitter</a>,
<a href="https://github.com/jashkenas/">Jeremy Ashkenas - Github</a></p>
<p>요즘 가장 인기있는 코딩왕이 아닐까 합니다.</p>
<ul>
<li><a href="http://coffeescript.org/">CoffeeScript</a></li>
<li><a href="http://documentcloud.github.com/underscore/">underscore.js</a></li>
<li><a href="http://documentcloud.github.com/backbone/">backbone.js</a></li>
</ul>
<p>위에 세개다 저 사람이 맨들었답니다.</p>
<h2>돈워리</h2>
<p><a href="http://documentcloud.github.com/backbone/#examples">http://documentcloud.github.com/backbone/#examples</a></p>
<ul>
<li>FourSuare</li>
<li>LinkedIn</li>
<li>37 Signals</li>
<li>Trello</li>
<li>Silex(끼워 넣어 봅니다)</li>
<li>…</li>
</ul>
<p>등에서 이미 쓰이고 있다고..</p>
<h2>연습삼아 맨든 프로젝트</h2>
<p>일단 <a href="http://coffeescript.org/">CoffeeScript</a>만세라서
<a href="http://coffeescript.org/">CoffeeScript</a>로 구현하였습니다.</p>
<p><a href="http://aanoaa.github.com/jquery-note/">jquery-note plugin</a>을 다시
한번 만들어 봤습니다.</p>
<h3>Server-side</h3>
<p><img src="https://lh5.googleusercontent.com/-_aPZkJJp5LI/T0I_SRERM-I/AAAAAAAAABo/k_WLzmWNs08/s1024/res-res.example.png" alt="server-side" /></p>
<p>RESTful 하게 구현되어야 합니다. <a href="http://documentcloud.github.com/backbone/">backbone.js</a>의 <code>model</code>과
<code>collection</code>은 url 규약을 가지고 있습니다.</p>
<figure class='code'><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
<span class='line-number'>4</span>
<span class='line-number'>5</span>
<span class='line-number'>6</span>
<span class='line-number'>7</span>
</pre></td><td class='code'><pre><code class=''><span class='line'># http://documentcloud.github.com/backbone/#Sync
</span><span class='line'>The default sync handler maps CRUD to REST like so:
</span><span class='line'>
</span><span class='line'>create → POST /collection
</span><span class='line'>read → GET /collection[/id]
</span><span class='line'>update → PUT /collection/id
</span><span class='line'>delete → DELETE /collection/id</span></code></pre></td></tr></table></div></figure>
<p>좀 간단하게 말하면 위에선 언급한 구조의 HTTP method 와 url 규약을
지키고, 요청 헤더의 <code>Accept</code>에 걸맞는 응답을 줘야 합니다.</p>
<p>서버와 sync 를 하기 위해 <code>model.save()</code> 또는 <code>collection.fetch()</code>를 호출
하게 되는데 이때, 모든 요청 헤더에 <code>Accept: application/json</code> 을
포함합니다. 새로운 item 을 만들기 위해 <code>POST</code> 요청을 보낼때도
마찬가집니다. 이때는 추가로 <code>JSON.stringify(model)</code> 을 POST body 에
넣고, <code>Content-type: application/json</code> 헤더를 포함합니다.</p>
<figure class='code'><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
<span class='line-number'>4</span>
</pre></td><td class='code'><pre><code class=''><span class='line'># part of request header
</span><span class='line'>Accept application/json, text/javascript, */*; q=0.01
</span><span class='line'>Content-Type application/json; charset=UTF-8
</span><span class='line'>X-Requested-With XMLHttpRequest</span></code></pre></td></tr></table></div></figure>
<figure class='code'><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
</pre></td><td class='code'><pre><code class=''><span class='line'># request body
</span><span class='line'>{"qid":"1","status":"reopen","comment":""}</span></code></pre></td></tr></table></div></figure>
<p>server 에서 이런 데이터를 받아서 처리해야 하는(deserialize/serialize)
자잘함을 피하기 위해 저는
<a href="http://search.cpan.org/~bobtfish/Catalyst-Action-REST-0.96/lib/Catalyst/Controller/REST.pm">Catalyst::Controller::REST</a> 를
사용했습니다. 요청/응답 헤더에서 사용가능한 “Accept”를 확인하고
serialize/deserialize 를 자동으로 해주기 때문에 편리합니다.</p>
<h3>Client-side</h3>
<p><img src="https://lh5.googleusercontent.com/--90Nykdhcvc/T0IyuoSwCeI/AAAAAAAAABg/V0Lp1rRzJXE/preview-backbone-note.png" alt="preview" /></p>
<ul>
<li>상태 및 코멘트를 <code>note</code> 라 하겠습니다.</li>
<li>위 그림처럼 한화면에 보여지는 <code>note</code>의 집합(또는 컬렉션)을 <code>query</code>
라 하겠습니다.</li>
</ul>
<p><code>http://example.com/#/query/:id</code> url 을 감지하고 원하는 event 를 발생
시켜야 합니다. 그러기 위해선 <code>Backbone.Router</code> 를 확장해서 app 전용
router 를 만들어야 합니다.</p>
<figure class='code'><figcaption><span></span></figcaption><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
<span class='line-number'>4</span>
<span class='line-number'>5</span>
<span class='line-number'>6</span>
<span class='line-number'>7</span>
<span class='line-number'>8</span>
<span class='line-number'>9</span>
<span class='line-number'>10</span>
<span class='line-number'>11</span>
<span class='line-number'>12</span>
<span class='line-number'>13</span>
<span class='line-number'>14</span>
<span class='line-number'>15</span>
<span class='line-number'>16</span>
<span class='line-number'>17</span>
</pre></td><td class='code'><pre><code class='coffeescript'><span class='line'><span class="k">class</span> <span class="nx">MyModel</span> <span class="k">extends</span> <span class="nx">Backbone</span><span class="p">.</span><span class="nx">Model</span>
</span><span class='line'>
</span><span class='line'><span class="k">class</span> <span class="nx">MyCollection</span> <span class="k">extends</span> <span class="nx">Backbone</span><span class="p">.</span><span class="nx">Collection</span>
</span><span class='line'> <span class="nv">model: </span><span class="nx">MyModel</span>
</span><span class='line'>
</span><span class='line'><span class="k">class</span> <span class="nx">MyRouter</span> <span class="k">extends</span> <span class="nx">Backbone</span><span class="p">.</span><span class="nx">Router</span>
</span><span class='line'> <span class="nv">routes:</span>
</span><span class='line'> <span class="s1">'/query/:id'</span><span class="o">:</span> <span class="s1">'query'</span>
</span><span class='line'> <span class="nv">query: </span><span class="p">(</span><span class="nx">id</span><span class="p">)</span> <span class="o">=></span>
</span><span class='line'> <span class="c1"># do something</span>
</span><span class='line'> <span class="nv">coll = </span><span class="k">new</span> <span class="nx">MyCollection</span>
</span><span class='line'> <span class="nv">coll.url = </span><span class="s2">"/query/#{id}"</span>
</span><span class='line'> <span class="nx">coll</span><span class="p">.</span><span class="nx">fetch</span>
</span><span class='line'> <span class="nv">success: </span><span class="nf">(c, res) -></span>
</span><span class='line'> <span class="k">new</span> <span class="nx">MyView</span> <span class="p">{</span> <span class="nv">collection: </span><span class="nx">c</span> <span class="p">}</span>
</span><span class='line'> <span class="nv">error: </span><span class="nf">(c, res) -></span>
</span><span class='line'> <span class="c1"># error handling</span>
</span></code></pre></td></tr></table></div></figure>
<p><code>http://example.com/#/query/2</code> 일때, <code>GET /query/2</code> 하고 응답이
정상이면 <code>MyView</code> 를 만듭니다. view 가 초기화될때, render 를 호출하면
DOM 이 알맞게 슥슥 바뀌게 됩니다. 일반적으로 <code>collection.models</code> 를
순회하면서 html element 를 구성하고 특정 #id 에 append 합니다.</p>
<figure class='code'><figcaption><span></span></figcaption><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
<span class='line-number'>4</span>
<span class='line-number'>5</span>
<span class='line-number'>6</span>
<span class='line-number'>7</span>
<span class='line-number'>8</span>
<span class='line-number'>9</span>
<span class='line-number'>10</span>
<span class='line-number'>11</span>
<span class='line-number'>12</span>
<span class='line-number'>13</span>
<span class='line-number'>14</span>
</pre></td><td class='code'><pre><code class='coffeescript'><span class='line'><span class="k">class</span> <span class="nx">MyView</span> <span class="k">extends</span> <span class="nx">Backbone</span><span class="p">.</span><span class="nx">View</span>
</span><span class='line'> <span class="nv">initialize: </span><span class="o">-></span>
</span><span class='line'> <span class="nx">do</span> <span class="nx">@render</span>
</span><span class='line'> <span class="nv">template:</span>
</span><span class='line'> <span class="s1">'''</span>
</span><span class='line'><span class="s1"> is </span>
</span><span class='line'><span class="s1"> '''</span>
</span><span class='line'> <span class="nv">render: </span><span class="o">=></span>
</span><span class='line'> <span class="nx">_</span><span class="p">.</span><span class="nx">each</span> <span class="nx">@collection</span><span class="p">.</span><span class="nx">models</span><span class="p">,</span> <span class="p">(</span><span class="nx">item</span><span class="p">)</span> <span class="o">=></span>
</span><span class='line'> <span class="c1"># 템플릿을 사용해서 슥슥하면 편리합니다. 예를들어..</span>
</span><span class='line'> <span class="nx">html</span> <span class="o">+=</span> <span class="nx">Mustache</span><span class="p">.</span><span class="nx">render</span><span class="p">(</span><span class="nx">@template</span><span class="p">,</span> <span class="p">{</span> <span class="nv">foo: </span><span class="s1">'hello'</span><span class="p">,</span> <span class="nv">bar: </span><span class="s1">'world'</span> <span class="p">})</span> <span class="c1"># hello is world</span>
</span><span class='line'> <span class="c1"># 일반적으론 이렇게는 직접 데이터를 구성하지는 않겟고, item 을 사용하겟죠</span>
</span><span class='line'> <span class="nx">@delegateEvents</span><span class="p">()</span> <span class="c1"># event 처리에 대한 꼼순데 생략</span>
</span><span class='line'> <span class="err">@</span> <span class="c1"># render 의 마지막에 this 를 return 함으로써 jquery chain 을 사용할 수 있도록 합니다.</span>
</span></code></pre></td></tr></table></div></figure>
<p><a href="http://documentcloud.github.com/backbone/">backbone.js</a> 을 사용한 부분의 코드입니다. 조금
헷갈리수도 있는게, <a href="http://requirejs.org/">Require.js</a>를 사용해서 <code>define</code>,
<code>order!</code> 같은 구문이 거슬릴 수도 있습니다만, 바다와 같은 마음으로
이해해 주세요.</p>
<div><script src='https://gist.github.com/1868873.js?file='></script>
<noscript><pre><code>require [
"jquery",
"routers/root"
], ($, Router) ->
$(document).ready ->
new Router
Backbone.history.start()
</code></pre></noscript></div>
<h2>결론 및 느낀점</h2>
<ul>
<li>jquery plugin 으로 작성했을때 보다 복잡성은 줄어들고 코드의 양은 2/3
정도로 줄어듬</li>
<li>확장이 용이 해졌음, 더 복잡한 UI 에 대한 자신감 up</li>
<li>js 가 웹애플리케이션의 일부분이 되어버림</li>
<li>jquery plugin 과 달리 재사용을 쉽게 못함</li>
<li>서버 구현에 있어서 sync 를 위해서 RESTful하게 설계되어야함</li>
<li>rails 후렌들리</li>
<li>perl 로도 요런거 graceful 하게 할 수 있음</li>
<li>요즘들어 ruby 에 많은 관심이 감</li>
<li>JST(Javascript Template)를 사용하면 more graceful, 허놔 그것은 rails
only</li>
<li>template engine 바꿔 낄 수 있음</li>
</ul>
<h2>See also</h2>
<ul>
<li><a href="http://documentcloud.github.com/backbone/">backbone.js</a></li>
<li><a href="http://backbonetutorials.com/">Backbone.js Tutorials</a></li>
<li><a href="http://arturadib.com/hello-backbonejs/">Hello Backbone.js Tutorial</a></li>
<li><a href="http://liquidmedia.ca/blog/2011/01/backbone-js-part-1/">An Intro to Backbone.js: Part 1</a></li>
<li><a href="http://liquidmedia.ca/blog/2011/01/an-intro-to-backbone-js-part-2-controllers-and-views/">An Intro to Backbone.js: Part 2</a></li>
<li><a href="http://liquidmedia.ca/blog/2011/02/backbone-js-part-3/">An Intro to Backbone.js: Part 3</a></li>
<li><a href="http://www.jamesyu.org/2011/01/27/cloudedit-a-backbone-js-tutorial-by-example/">Backbone.js Tutorial with Rails Part 1</a></li>
<li><a href="http://www.jamesyu.org/2011/02/09/backbone.js-tutorial-with-rails-part-2/">Backbone.js Tutorial with Rails Part 2</a></li>
<li><a href="https://github.com/documentcloud/backbone/wiki/Tutorials%2C-blog-posts-and-example-sites">blog posts and example sites</a></li>
</ul>
]]></content>
</entry>
<entry>
<title type="html"><![CDATA[Mysql ENUM and Test::*]]></title>
<link href="http://silexkr.github.com/blog/2012/02/03/mysql-enum-and-test-star/"/>
<updated>2012-02-03T19:06:00+09:00</updated>
<id>http://silexkr.github.com/blog/2012/02/03/mysql-enum-and-test-star</id>
<content type="html"><![CDATA[<h1>MySQL ENUM과 Test:: 이야기</h1>
<h2>MySQL의 ENUM type</h2>
<p> 제가 MySQL을 사용한지 약 10년 정도의 시간이 지났습니다. 처음 MySQL을
사용하던 당시 MySQL 3.X는 지금의 MySQL 5.X 버전에 비하면 DB로써
여러가지로 부족한 점이 많았습니다. - 단일 저장 engine 지원(MyISAM),
컴파일타임 전역 인코딩 지정, FK 지원, View/Trigger/SP 지원등 -
하지만 탁월한 읽기속도를 바탕으로 대중적인 몇몇 PHP 응용프로그램에 성공적으로
탑재되면서 거의 10년간 오픈소스 진영 DB의 대명사로 자리를 잡았고 그동안
많은 우여곡절에도 꾸준히 발전해 현재는 상용 DB와 견주어도 부족하지 않은
다양한 기능을 제공하고 있습니다.</p>
<p> 하지만 개인적으로 그동안 MySQL에 추가된 좋은 최신의 기능들 보다 MySQL
이라는 DB를 떠올리면 가장 먼저 머리속에 떠오르는 애증의 기능이 하나 있습니다.
그것은 바로 오늘 소개할 <code>ENUM</code>이라는 자료형입니다.</p>
<p><code>ENUM</code>은 C 언어, Java등에서 이미 널리 사용되고 있는 enumeration을 의미하는 자료형으로
MySQL에서 <code>ENUM</code>은 단일 컬럼에 미리 지정한 자료만 저장 가능하도록 하는 특수 자료형 입니다.
MySQL.com 에서는 <code>ENUM</code>을 다음과 같이 소개하고 있습니다.</p>
<p> An ENUM is a string object with a value chosen from a list of permitted values that are enumerated
explicitly in the column specification at table creation time.</p>
<p><code>ENUM</code> 자료형을 사용할 때 얻을 수 있는 장점은 다음과 같습니다.</p>
<ol>
<li>Text(varchar,char,text)로 값을 저장하는것에 비해 자료의 정합성을 높힐 수 있다</li>
<li>Text + FK 으로 설계하는 것에 비해 Table수를 줄일 수 있다.</li>
<li>enum index 를 통한 연산을 사용할 수 있다.</li>
</ol>
<p> 첫번째 장점은 부연설명이 필요없는 장점입니다. text field 컬럼은 사실상 너무 많이 가능성이 열려있는
컬럼이기 때문에 아무리 응용프로그램에서 정합성을 체크해도 조금만 실수하면 바로 엉뚱한 값들이
들어와 속을 썩이기 마련입니다. 두번째는 조금 논쟁이 있을 수 있는 내용입니다. 사실 앞서 설명한
정합성에 대한 문제를 정석으로 해결하는 방법은 해당 컬럼에 들어올 수 있는 값을 row로 가진 별도의 자료 테이블을
생성하고 그 컬럼에서 FK 제약 조건을 통해 정합성을 확보하는 방식입니다. 이 방식은 어떤 DBMS에서도
사용할수 있는 방법이기 때문에 이식성이 뛰어나다는 장점이 있습니다. 하지만 그런 형태의 제약의 수가 아주 많다면
그 수만큼 테이블이 늘어나거나 혹은 메타정보를 관리하는 별도 테이블을 두고 관리해야 하기 때문에 번거롭습니다.
하지만 <code>ENUM</code>자료 형을 사용할 경우 상대적으로 적은 비용으로 원하는 바를 얻을 수 있기 때문에 경우에 따라서는
훌륭한 대안입니다. 세번째 장점은 의외로 모르는 분들이 많은 기능이지만 개인적으로 MySQL <code>ENUM</code> 자료형의
가장 멋진 기능이라고 생각하는 기능입니다. enum index란 <code>ENUM</code>으로 정의된 컬럼에 입력과 출력에 있어서
지정된 ‘값’ 자체 뿐만 아니라 색인(index)값을 이용해 해당 값에 접근할 수 있는 색인을 말합니다. 예를 들면</p>
<pre><code>+-------+-------------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------+-------------------+------+-----+---------+----------------+
| id | int(11) unsigned | NO | PRI | NULL | auto_increment |
| c1 | enum('a','b','c') | YES | | NULL | |
+-------+-------------------+------+-----+---------+----------------+
</code></pre>
<p>다음 질의와 결과는 아래와 같습니다.</p>
<pre><code>SELECT id,c1,c1+0 FROM `t1`
+----+------+------+
| id | c1 | c1+0 |
+----+------+------+
| 1 | a | 1 |
| 2 | b | 2 |
| 3 | c | 3 |
+----+------+------+
</code></pre>
<p>그후 다음 질의와 결과는 다음과 같습니다.</p>
<pre><code>INSERT INTO t1(c1) VALUES(1);
SELECT id,c1,c1+0 FROM `t1`
+----+------+------+
| id | c1 | c1+0 |
+----+------+------+
| 1 | a | 1 |
| 2 | b | 2 |
| 3 | c | 3 |
| 4 | a | 1 |
+----+------+------+
</code></pre>
<p>이처럼 SELECT 문에서 <code>ENUM</code> 자료형 컬럼에 숫자 연산을 하면 색인값을 반환합니다. 마찬가지로 INSERT / UPDATE 문에서
<code>ENUM</code> 자료형 컬럼에 색인을 넣으면 자동으로 해당 컬럼을 넣어줍니다. 이런 특징은 특히 웹 프로그래밍에서 HTML의
Input 요소중 Radio 요소와 아주 궁합이 잘 맞습니다. 예를들면 위에 설명한 c1 컬럼에 값을 넣는
Radio 요소는 다음과 같이 단순하게 작성할 수 있습니다.</p>
<pre><code> <input type="radio" id="c11" name="c1" value="1"> a
<input type="radio" id="c12" name="c1" value="2"> b
<input type="radio" id="c13" name="c1" value="3"> c
</code></pre>
<p>이런 방식은 Radio 요소를 많게는 수백개 이상 다뤄야하는 그동안의 작업을 아주 단순하게 만들어 줬습니다.</p>
<h2>Perl test code</h2>
<p>이 포스트는 단순한 <code>ENUM</code> 자료형의 장점뿐만 아니라 그동안 이 자료형을 사용하면서 만났던
몇가지 문제들을 알아보고 재현할 수 있는 perl 코드를 작성해보는것을 목적으로 하고 있습니다.
이런 형태의 문제들은 주로 사용 초기에 발견되지 않고 오랜 기간 수정과 삭제를 반복하다가 발견하곤
하는데 문제에 대한 명확한 재현이 없이는 기존 자료에서 잘못된 내용을 찾는것도 쉽지 않고 같은
실수를 회피하도록 코드를 작성하는데도 많은 어려움이 있었기 때문에 따로 시간을 내서
발생하는 현상에 대해 재현할 수 있는 코드를 작성했습니다.</p>
<p>코드에는 평소에 제가 즐겨쓰는 몇가지 모듈이 사용됩니다. <a href="http://metacpan.org/module/Test::Most">Test::Most</a>, <a href="http://metacpan.org/module/DBIx::Simple">DBIx::Simple</a>,
<a href="http://metacpan.org/module/SQL::Abstract">SQL::Abstract</a>, <a href="http://metacpan.org/module/Test::Databaserow">Test::DatabaseRow</a></p>
<ul>
<li>Test::Most는 Test::More와 이름이 거의 흡사하지만 자주 사용하는 Test::Differences,Test::Deep,Test::Exception 등을
같이 불러주기 때문에 습관적으로 사용합니다.</li>
<li>DBIx::Simple + SQL::Abstract는 복잡하게 ORM을 사용하지 않고 간편하게 DB에 값을 주고 받을 때 사용합니다.</li>
<li>Test::DatabaseRow는 DB의 구조가 아닌 <code>값</code>을 기준으로 검증코드를 만들고자 할때 사용합니다. 최근에 특정작업을 진행
하면서 많이 사용하게 되었습니다.</li>
<li>테스트 코드를 작성할 때 반복사용되는 부분은 최대한 함수로 분리를 하고 실제 검증이 들어가는 부분은
가능하면 block({,})으로 scope를 분리시키면 비슷한 시도의 검증코드를 다수 만들때 복사해서 붙이기 용이합니다.
( “특히 subtest를 사용하면 test를 개념적으로 분리할 수 있어 더욱 좋다” by @JEEN_LEE )</li>
</ul>
<h2>Code</h2>
<figure class='code'><figcaption><span></span></figcaption><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
<span class='line-number'>2</span>
<span class='line-number'>3</span>
<span class='line-number'>4</span>
<span class='line-number'>5</span>
<span class='line-number'>6</span>
<span class='line-number'>7</span>
<span class='line-number'>8</span>
<span class='line-number'>9</span>
<span class='line-number'>10</span>
<span class='line-number'>11</span>
<span class='line-number'>12</span>
<span class='line-number'>13</span>
<span class='line-number'>14</span>
<span class='line-number'>15</span>
<span class='line-number'>16</span>
<span class='line-number'>17</span>
<span class='line-number'>18</span>
<span class='line-number'>19</span>
<span class='line-number'>20</span>
<span class='line-number'>21</span>
<span class='line-number'>22</span>
<span class='line-number'>23</span>
<span class='line-number'>24</span>
<span class='line-number'>25</span>
<span class='line-number'>26</span>
<span class='line-number'>27</span>
<span class='line-number'>28</span>
<span class='line-number'>29</span>
<span class='line-number'>30</span>
<span class='line-number'>31</span>
<span class='line-number'>32</span>
<span class='line-number'>33</span>
<span class='line-number'>34</span>
<span class='line-number'>35</span>
<span class='line-number'>36</span>
<span class='line-number'>37</span>
<span class='line-number'>38</span>
<span class='line-number'>39</span>
<span class='line-number'>40</span>
<span class='line-number'>41</span>
<span class='line-number'>42</span>
<span class='line-number'>43</span>
<span class='line-number'>44</span>
<span class='line-number'>45</span>
<span class='line-number'>46</span>
<span class='line-number'>47</span>
<span class='line-number'>48</span>
<span class='line-number'>49</span>
<span class='line-number'>50</span>
<span class='line-number'>51</span>
<span class='line-number'>52</span>
<span class='line-number'>53</span>
<span class='line-number'>54</span>
<span class='line-number'>55</span>
<span class='line-number'>56</span>
<span class='line-number'>57</span>
<span class='line-number'>58</span>
<span class='line-number'>59</span>
<span class='line-number'>60</span>
<span class='line-number'>61</span>
<span class='line-number'>62</span>
<span class='line-number'>63</span>
<span class='line-number'>64</span>
<span class='line-number'>65</span>
<span class='line-number'>66</span>
<span class='line-number'>67</span>
<span class='line-number'>68</span>
<span class='line-number'>69</span>
<span class='line-number'>70</span>
<span class='line-number'>71</span>
<span class='line-number'>72</span>
<span class='line-number'>73</span>
<span class='line-number'>74</span>
<span class='line-number'>75</span>
<span class='line-number'>76</span>
<span class='line-number'>77</span>
<span class='line-number'>78</span>
<span class='line-number'>79</span>
<span class='line-number'>80</span>
<span class='line-number'>81</span>
<span class='line-number'>82</span>
<span class='line-number'>83</span>
<span class='line-number'>84</span>
<span class='line-number'>85</span>
<span class='line-number'>86</span>
<span class='line-number'>87</span>
<span class='line-number'>88</span>
<span class='line-number'>89</span>
<span class='line-number'>90</span>
<span class='line-number'>91</span>
<span class='line-number'>92</span>
<span class='line-number'>93</span>
<span class='line-number'>94</span>
<span class='line-number'>95</span>
<span class='line-number'>96</span>
<span class='line-number'>97</span>
<span class='line-number'>98</span>
<span class='line-number'>99</span>
<span class='line-number'>100</span>
<span class='line-number'>101</span>
<span class='line-number'>102</span>
<span class='line-number'>103</span>
<span class='line-number'>104</span>
<span class='line-number'>105</span>
<span class='line-number'>106</span>
<span class='line-number'>107</span>
<span class='line-number'>108</span>
<span class='line-number'>109</span>
<span class='line-number'>110</span>
<span class='line-number'>111</span>
<span class='line-number'>112</span>
<span class='line-number'>113</span>
<span class='line-number'>114</span>
<span class='line-number'>115</span>
<span class='line-number'>116</span>
<span class='line-number'>117</span>
<span class='line-number'>118</span>
<span class='line-number'>119</span>
<span class='line-number'>120</span>
<span class='line-number'>121</span>
<span class='line-number'>122</span>
<span class='line-number'>123</span>
<span class='line-number'>124</span>
<span class='line-number'>125</span>
<span class='line-number'>126</span>
<span class='line-number'>127</span>
<span class='line-number'>128</span>
<span class='line-number'>129</span>
<span class='line-number'>130</span>
<span class='line-number'>131</span>
<span class='line-number'>132</span>
<span class='line-number'>133</span>
<span class='line-number'>134</span>
<span class='line-number'>135</span>
<span class='line-number'>136</span>
<span class='line-number'>137</span>
<span class='line-number'>138</span>
<span class='line-number'>139</span>
<span class='line-number'>140</span>
<span class='line-number'>141</span>
<span class='line-number'>142</span>
<span class='line-number'>143</span>
<span class='line-number'>144</span>
<span class='line-number'>145</span>
<span class='line-number'>146</span>
<span class='line-number'>147</span>
<span class='line-number'>148</span>
<span class='line-number'>149</span>
<span class='line-number'>150</span>
<span class='line-number'>151</span>
<span class='line-number'>152</span>
<span class='line-number'>153</span>
<span class='line-number'>154</span>
<span class='line-number'>155</span>
<span class='line-number'>156</span>
<span class='line-number'>157</span>
<span class='line-number'>158</span>
<span class='line-number'>159</span>
<span class='line-number'>160</span>
<span class='line-number'>161</span>
<span class='line-number'>162</span>
<span class='line-number'>163</span>
<span class='line-number'>164</span>
<span class='line-number'>165</span>
<span class='line-number'>166</span>
<span class='line-number'>167</span>
<span class='line-number'>168</span>
<span class='line-number'>169</span>
<span class='line-number'>170</span>
<span class='line-number'>171</span>
<span class='line-number'>172</span>
<span class='line-number'>173</span>
<span class='line-number'>174</span>
<span class='line-number'>175</span>
<span class='line-number'>176</span>
<span class='line-number'>177</span>
<span class='line-number'>178</span>
<span class='line-number'>179</span>
<span class='line-number'>180</span>
<span class='line-number'>181</span>
<span class='line-number'>182</span>
<span class='line-number'>183</span>
<span class='line-number'>184</span>
<span class='line-number'>185</span>
<span class='line-number'>186</span>
<span class='line-number'>187</span>
<span class='line-number'>188</span>
<span class='line-number'>189</span>
<span class='line-number'>190</span>
<span class='line-number'>191</span>
<span class='line-number'>192</span>
<span class='line-number'>193</span>
<span class='line-number'>194</span>
<span class='line-number'>195</span>
<span class='line-number'>196</span>
<span class='line-number'>197</span>
<span class='line-number'>198</span>
<span class='line-number'>199</span>
<span class='line-number'>200</span>
<span class='line-number'>201</span>
<span class='line-number'>202</span>
<span class='line-number'>203</span>
<span class='line-number'>204</span>
<span class='line-number'>205</span>
<span class='line-number'>206</span>
<span class='line-number'>207</span>
<span class='line-number'>208</span>
<span class='line-number'>209</span>
<span class='line-number'>210</span>
<span class='line-number'>211</span>
<span class='line-number'>212</span>
<span class='line-number'>213</span>
<span class='line-number'>214</span>
<span class='line-number'>215</span>
<span class='line-number'>216</span>
<span class='line-number'>217</span>
<span class='line-number'>218</span>
<span class='line-number'>219</span>
<span class='line-number'>220</span>
</pre></td><td class='code'><pre><code class='perl'><span class='line'><span class="c1">#!/usr/bin/env perl</span>
</span><span class='line'><span class="k">use</span> <span class="nn">Test::</span><span class="n">Most</span><span class="p">;</span>
</span><span class='line'><span class="k">use</span> <span class="nn">Test::</span><span class="n">DatabaseRow</span><span class="p">;</span>
</span><span class='line'><span class="k">use</span> <span class="nn">Test::</span><span class="n">Group</span><span class="p">;</span>
</span><span class='line'><span class="k">use</span> <span class="nn">DBIx::</span><span class="n">Simple</span><span class="p">;</span>
</span><span class='line'><span class="k">use</span> <span class="nn">SQL::</span><span class="n">Abstract</span><span class="p">;</span>
</span><span class='line'><span class="k">use</span> <span class="nn">Const::</span><span class="n">Fast</span><span class="p">;</span>
</span><span class='line'>
</span><span class='line'><span class="n">const</span> <span class="k">my</span> <span class="nv">$DATABASE</span> <span class="o">=></span> <span class="s">'testdb'</span><span class="p">;</span>
</span><span class='line'><span class="n">const</span> <span class="k">my</span> <span class="nv">$TABLE</span> <span class="o">=></span> <span class="s">'t1'</span><span class="p">;</span>
</span><span class='line'><span class="n">const</span> <span class="k">my</span> <span class="nv">$COLUMN</span> <span class="o">=></span> <span class="s">'c1'</span><span class="p">;</span>
</span><span class='line'>
</span><span class='line'><span class="n">const</span> <span class="k">my</span> <span class="nv">$DBHOST</span> <span class="o">=></span> <span class="s">'127.0.0.1'</span><span class="p">;</span>
</span><span class='line'><span class="n">const</span> <span class="k">my</span> <span class="nv">$DBUSER</span> <span class="o">=></span> <span class="s">'root'</span><span class="p">;</span>
</span><span class='line'><span class="n">const</span> <span class="k">my</span> <span class="nv">$DBPASS</span> <span class="o">=></span> <span class="sx">q()</span><span class="p">;</span>
</span><span class='line'>
</span><span class='line'>
</span><span class='line'><span class="k">my</span> <span class="nv">$db</span> <span class="o">=</span> <span class="nn">DBIx::</span><span class="n">Simple</span><span class="o">-></span><span class="nb">connect</span><span class="p">(</span>
</span><span class='line'> <span class="s">"DBI:mysql:host=$DBHOST"</span><span class="p">,</span>
</span><span class='line'> <span class="nv">$DBUSER</span><span class="p">,</span> <span class="nv">$DBPASS</span><span class="p">,</span>
</span><span class='line'> <span class="p">{</span>
</span><span class='line'> <span class="n">mysql_enable_utf8</span> <span class="o">=></span> <span class="mi">1</span><span class="p">,</span>
</span><span class='line'> <span class="n">mysql_auto_reconnect</span> <span class="o">=></span> <span class="mi">1</span><span class="p">,</span>
</span><span class='line'> <span class="p">}</span>
</span><span class='line'><span class="p">)</span> <span class="ow">or</span> <span class="nb">die</span><span class="p">;</span>
</span><span class='line'><span class="nv">$db</span><span class="o">-></span><span class="n">abstract</span> <span class="o">=</span> <span class="nn">SQL::</span><span class="n">Abstract</span><span class="o">-></span><span class="k">new</span><span class="p">(</span> <span class="p">{</span> <span class="n">quota_char</span> <span class="o">=></span> <span class="s">'`'</span><span class="p">,</span> <span class="n">name_sep</span> <span class="o">=></span> <span class="s">'.'</span> <span class="p">}</span> <span class="p">);</span>
</span><span class='line'>
</span><span class='line'><span class="nb">local</span> <span class="nv">$</span><span class="nn">Test::DatabaseRow::</span><span class="nv">dbh</span> <span class="o">=</span> <span class="nv">$db</span><span class="o">-></span><span class="n">dbh</span><span class="p">;</span>
</span><span class='line'>
</span><span class='line'><span class="n">subtest</span> <span class="s">"enum column에 컬럼 추가가 발생한경우(POST)"</span> <span class="o">=></span> <span class="k">sub </span><span class="p">{</span>
</span><span class='line'> <span class="k">my</span> <span class="nv">%h</span> <span class="o">=</span> <span class="p">(</span>
</span><span class='line'> <span class="mi">1</span> <span class="o">=></span> <span class="p">{</span> <span class="n">n</span> <span class="o">=></span> <span class="s">'a'</span><span class="p">,</span> <span class="n">i</span> <span class="o">=></span> <span class="mi">1</span> <span class="p">},</span>
</span><span class='line'> <span class="mi">2</span> <span class="o">=></span> <span class="p">{</span> <span class="n">n</span> <span class="o">=></span> <span class="s">'b'</span><span class="p">,</span> <span class="n">i</span> <span class="o">=></span> <span class="mi">2</span> <span class="p">},</span>
</span><span class='line'> <span class="mi">3</span> <span class="o">=></span> <span class="p">{</span> <span class="n">n</span> <span class="o">=></span> <span class="s">'c'</span><span class="p">,</span> <span class="n">i</span> <span class="o">=></span> <span class="mi">3</span> <span class="p">},</span>
</span><span class='line'> <span class="p">);</span>
</span><span class='line'>
</span><span class='line'> <span class="n">initialize</span><span class="p">(</span><span class="nv">%h</span><span class="p">);</span>
</span><span class='line'><span class="c1"># +-------+-------------------+------+-----+---------+----------------+</span>
</span><span class='line'><span class="c1"># | Field | Type | Null | Key | Default | Extra |</span>
</span><span class='line'><span class="c1"># +-------+-------------------+------+-----+---------+----------------+</span>
</span><span class='line'><span class="c1"># | id | int(11) unsigned | NO | PRI | NULL | auto_increment |</span>
</span><span class='line'><span class="c1"># | c1 | enum('a','b','c') | YES | | NULL | |</span>
</span><span class='line'><span class="c1"># +-------+-------------------+------+-----+---------+----------------+</span>
</span><span class='line'>
</span><span class='line'> <span class="n">insert_values</span><span class="p">(</span><span class="nv">%h</span><span class="p">);</span>
</span><span class='line'> <span class="n">test_column_value</span><span class="p">(</span><span class="nv">%h</span><span class="p">);</span>
</span><span class='line'> <span class="n">test_column_index</span><span class="p">(</span><span class="nv">%h</span><span class="p">);</span>
</span><span class='line'>
</span><span class='line'> <span class="n">query</span><span class="p">(</span><span class="s">"ALTER TABLE `$TABLE` CHANGE `$COLUMN` `$COLUMN` ENUM('a','b','c','x','y','z') NULL DEFAULT NULL"</span><span class="p">);</span>
</span><span class='line'>
</span><span class='line'><span class="c1"># +-------+-------------------------------+------+-----+---------+----------------+</span>
</span><span class='line'><span class="c1"># | Field | Type | Null | Key | Default | Extra |</span>
</span><span class='line'><span class="c1"># +-------+-------------------------------+------+-----+---------+----------------+</span>
</span><span class='line'><span class="c1"># | c1 | enum('a','b','c','x','y','z') | YES | | NULL | |</span>
</span><span class='line'><span class="c1"># +-------+-------------------------------+------+-----+---------+----------------+</span>
</span><span class='line'>
</span><span class='line'> <span class="n">test_column_value</span><span class="p">(</span><span class="nv">%h</span><span class="p">);</span>
</span><span class='line'> <span class="n">test_column_index</span><span class="p">(</span><span class="nv">%h</span><span class="p">);</span>
</span><span class='line'><span class="p">};</span>
</span><span class='line'>
</span><span class='line'><span class="n">subtest</span> <span class="s">"enum column에 컬럼 추가가 발생한경우(PRE)"</span> <span class="o">=></span> <span class="k">sub </span><span class="p">{</span>
</span><span class='line'> <span class="k">my</span> <span class="nv">%h</span> <span class="o">=</span> <span class="p">(</span>
</span><span class='line'> <span class="mi">1</span> <span class="o">=></span> <span class="p">{</span> <span class="n">n</span> <span class="o">=></span> <span class="s">'a'</span><span class="p">,</span> <span class="n">i</span> <span class="o">=></span> <span class="mi">1</span> <span class="p">},</span>
</span><span class='line'> <span class="mi">2</span> <span class="o">=></span> <span class="p">{</span> <span class="n">n</span> <span class="o">=></span> <span class="s">'b'</span><span class="p">,</span> <span class="n">i</span> <span class="o">=></span> <span class="mi">2</span> <span class="p">},</span>
</span><span class='line'> <span class="mi">3</span> <span class="o">=></span> <span class="p">{</span> <span class="n">n</span> <span class="o">=></span> <span class="s">'c'</span><span class="p">,</span> <span class="n">i</span> <span class="o">=></span> <span class="mi">3</span> <span class="p">},</span>
</span><span class='line'> <span class="p">);</span>
</span><span class='line'>
</span><span class='line'> <span class="n">initialize</span><span class="p">(</span><span class="nv">%h</span><span class="p">);</span>
</span><span class='line'><span class="c1"># +-------+-------------------+------+-----+---------+----------------+</span>
</span><span class='line'><span class="c1"># | Field | Type | Null | Key | Default | Extra |</span>
</span><span class='line'><span class="c1"># +-------+-------------------+------+-----+---------+----------------+</span>
</span><span class='line'><span class="c1"># | id | int(11) unsigned | NO | PRI | NULL | auto_increment |</span>
</span><span class='line'><span class="c1"># | c1 | enum('a','b','c') | YES | | NULL | |</span>
</span><span class='line'><span class="c1"># +-------+-------------------+------+-----+---------+----------------+</span>
</span><span class='line'>
</span><span class='line'> <span class="n">insert_values</span><span class="p">(</span><span class="nv">%h</span><span class="p">);</span>
</span><span class='line'> <span class="n">test_column_value</span><span class="p">(</span><span class="nv">%h</span><span class="p">);</span>
</span><span class='line'> <span class="n">test_column_index</span><span class="p">(</span><span class="nv">%h</span><span class="p">);</span>
</span><span class='line'>
</span><span class='line'> <span class="n">query</span><span class="p">(</span><span class="s">"ALTER TABLE `$TABLE` CHANGE `$COLUMN` `$COLUMN` ENUM('x','y','z','a','b','c') NULL DEFAULT NULL"</span><span class="p">);</span>
</span><span class='line'>
</span><span class='line'><span class="c1"># +-------+-------------------------------+------+-----+---------+----------------+</span>