MySQL在ROW模式下如何通過binlog提取SQL語句

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Linux
基于row模式的binlog，生成DML(insert/update/delete)的rollback語句
通過mysqlbinlog -v 解析binlog生成可讀的sql文件
提取需要處理的有效sql
  "### "開頭的行.如果輸入的start-position位于某個event group中間，則會導(dǎo)致"無法識別event"錯誤


將INSERT/UPDATE/DELETE 的sql反轉(zhuǎn),并且1個完整sql只能占1行
  INSERT: INSERT INTO => DELETE FROM, SET => WHERE
  UPDATE: WHERE => SET, SET => WHERE
  DELETE: DELETE FROM => INSERT INTO, WHERE => SET
用列名替換位置@{1,2,3}
  通過desc table獲得列順序及對應(yīng)的列名
  特殊列類型value做特別處理
逆序


注意:
  表結(jié)構(gòu)與現(xiàn)在的表結(jié)構(gòu)必須相同[謹(jǐn)記]
  由于row模式是冪等的，并且恢復(fù)是一次性，所以只提取sql，不提取BEGIN/COMMIT
  只能對INSERT/UPDATE/DELETE進(jìn)行處理

mysql> select * from yoon;
+----------+------------+-----------+---------------------+
| actor_id | first_name | last_name | last_update         |
+----------+------------+-----------+---------------------+
|        1 | HANK       | YOON      | 2006-02-15 04:34:33 |
|        2 | HANK       | YOON      | 2006-02-15 04:34:33 |
|        3 | HANK       | YOON      | 2006-02-15 04:34:33 |
|        4 | HANK       | YOON      | 2006-02-15 04:34:33 |
|        5 | HANK       | YOON      | 2006-02-15 04:34:33 |
|        6 | HANK       | YOON      | 2006-02-15 04:34:33 |
|        7 | HANK       | YOON      | 2006-02-15 04:34:33 |
|        8 | HANK       | YOON      | 2006-02-15 04:34:33 |
|        9 | HANK       | YOON      | 2006-02-15 04:34:33 |
|       10 | HANK       | YOON      | 2006-02-15 04:34:33 |
|       11 | HANK       | YOON      | 2006-02-15 04:34:33 |
+----------+------------+-----------+---------------------+
11 rows in set (0.00 sec)


mysql> delete from yoon;
Query OK, 11 rows affected (1.03 sec)


mysql> select * from yoon;
Empty set (0.00 sec)

命令之間的空格一定要注意，否則就會無法提取SQL語句：
[root@hank-yoon data]# perl binlog-rollback.pl -f 'mysql-bin.000001' -o '/export/data/mysql/data/yoon.sql' -u 'root' -p 'yoon'
Warning: Using a password on the command line interface can be insecure.
[root@hank-yoon data]# ls
auto.cnf            hank     ibdata2      ib_logfile1  modify.pl  mysql-bin.000001  performance_schema  test  yoon.sql
binlog-rollback.pl  ibdata1  ib_logfile0  ib_logfile2  mysql      mysql-bin.index   sakila              yoon
[root@hank-yoon data]# cat yoon.sql 
INSERT INTO `yoon`.`yoon` SET `actor_id`=11, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=10, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=9, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=8, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=7, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=6, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=5, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=4, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=3, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=2, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=1, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);

mysql> INSERT INTO `yoon`.`yoon` SET `actor_id`=11, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
Query OK, 1 row affected (0.01 sec)


mysql> select * from yoon;
+----------+------------+-----------+---------------------+
| actor_id | first_name | last_name | last_update         |
+----------+------------+-----------+---------------------+
|       11 | HANK       | YOON      | 2006-02-15 04:34:33 |
+----------+------------+-----------+---------------------+

點擊(此處)折疊或打開

1. #!/usr/lib/perl -w
   

2. 
   

3. use strict;
   

4. use warnings;
   

5. 
   

6. use Class::Struct;
   

7. use Getopt::Long qw(:config no_ignore_case);                    # GetOption
   

8. # register handler system signals
   

9. use sigtrap 'handler', \&sig_int, 'normal-signals';
   

10. 
    

11. # catch signal
    

12. sub sig_int(){
    

13.     my ($signals) = @_;
    

14.     print STDERR "# Caught SIG$signals.\n";
    

15.     exit 1;
    

16. }
    

17. 
    

18. my %opt;
    

19. my $srcfile;
    

20. my $host = '127.0.0.1';
    

21. my $port = 3306;
    

22. my ($user,$pwd);
    

23. my ($MYSQL, $MYSQLBINLOG, $ROLLBACK_DML);
    

24. my $outfile = '/dev/null';
    

25. my (%do_dbs,%do_tbs);
    

26. 
    

27. # tbname=>tbcol, tbcol: @n=>colname,type
    

28. my %tbcol_pos;
    

29. 
    

30. my $SPLITER_COL = ',';
    

31. my $SQLTYPE_IST = 'INSERT';
    

32. my $SQLTYPE_UPD = 'UPDATE';
    

33. my $SQLTYPE_DEL = 'DELETE';
    

34. my $SQLAREA_WHERE = 'WHERE';
    

35. my $SQLAREA_SET = 'SET';
    

36. 
    

37. my $PRE_FUNCT = '========================== ';
    

38. 
    

39. # =========================================================
    

40. # 基于row模式的binlog，生成DML(insert/update/delete)的rollback語句
    

41. # 通過mysqlbinlog -v 解析binlog生成可讀的sql文件
    

42. # 提取需要處理的有效sql
    

43. #     "### "開頭的行.如果輸入的start-position位于某個event group中間，則會導(dǎo)致"無法識別event"錯誤
    

44. #
    

45. # 將INSERT/UPDATE/DELETE 的sql反轉(zhuǎn),并且1個完整sql只能占1行
    

46. #     INSERT: INSERT INTO => DELETE FROM, SET => WHERE
    

47. #     UPDATE: WHERE => SET, SET => WHERE
    

48. #     DELETE: DELETE FROM => INSERT INTO, WHERE => SET
    

49. # 用列名替換位置@{1,2,3}
    

50. #     通過desc table獲得列順序及對應(yīng)的列名
    

51. #     特殊列類型value做特別處理
    

52. # 逆序
    

53. #
    

54. # 注意:
    

55. #     表結(jié)構(gòu)與現(xiàn)在的表結(jié)構(gòu)必須相同[謹(jǐn)記]
    

56. #     由于row模式是冪等的，并且恢復(fù)是一次性，所以只提取sql，不提取BEGIN/COMMIT
    

57. #     只能對INSERT/UPDATE/DELETE進(jìn)行處理
    

58. # ========================================================
    

59. sub main{
    

60. 
    

61.     # get input option
    

62.     &get_options();
    

63. 
    

64.     #
    

65.     &init_tbcol();
    

66. 
    

67.     #
    

68.     &do_binlog_rollback();
    

69. }
    

70. 
    

71. &main();
    

72. 
    

73. 
    

74. # ----------------------------------------------------------------------------------------
    

75. # Func : get options and set option flag
    

76. # ----------------------------------------------------------------------------------------
    

77. sub get_options{
    

78.     #Get options info
    

79.     GetOptions(\%opt,
    

80.         'help',                    # OUT : print help info
    

81.         'f|srcfile=s',            # IN : binlog file
    

82.         'o|outfile=s',            # out : output sql file
    

83.         'h|host=s',                # IN : host
    

84.         'u|user=s', # IN : user
    

85.         'p|password=s', # IN : password
    

86.         'P|port=i',                # IN : port
    

87.         'start-datetime=s',        # IN : start datetime
    

88.         'stop-datetime=s',        # IN : stop datetime
    

89.         'start-position=i',        # IN : start position
    

90.         'stop-position=i',        # IN : stop position
    

91.         'd|database=s',            # IN : database, split comma
    

92.         'T|table=s',            # IN : table, split comma
    

93.         'i|ignore',                # IN : ignore binlog check ddl and so on
    

94.         'debug',                # IN : print debug information
    

95.      ) or print_usage();
    

96. 
    

97.     if (!scalar(%opt)) {
    

98.         &print_usage();
    

99.     }
    

100. 
     

101.     # Handle for options
     

102.     if ($opt{'f'}){
     

103.         $srcfile = $opt{'f'};
     

104.     }else{
     

105.         &merror("please input binlog file");
     

106.     }
     

107. 
     

108.     $opt{'h'} and $host = $opt{'h'};
     

109.     $opt{'u'} and $user = $opt{'u'};
     

110.     $opt{'p'} and $pwd = $opt{'p'};
     

111.     $opt{'P'} and $port = $opt{'P'};
     

112.     if ($opt{'o'}) {
     

113.         $outfile = $opt{'o'};
     

114.         # 清空 outfile
     

115.         `echo '' > $outfile`;
     

116.     }
     

117. 
     

118.     #
     

119.     $MYSQL = qq{mysql -h$host -u$user -p'$pwd' -P$port};
     

120.     &mdebug("get_options::MYSQL\n\t$MYSQL");
     

121. 
     

122.     # 提取binlog,不需要顯示列定義信息，用-v，而不用-vv
     

123.     $MYSQLBINLOG = qq{mysqlbinlog -v};
     

124.     $MYSQLBINLOG .= " --start-position=".$opt{'start-position'} if $opt{'start-position'};
     

125.     $MYSQLBINLOG .= " --stop-position=".$opt{'stop-position'} if $opt{'stop-postion'};
     

126.     $MYSQLBINLOG .= " --start-datetime='".$opt{'start-datetime'}."'" if $opt{'start-datetime'};
     

127.     $MYSQLBINLOG .= " --stop-datetime='$opt{'stop-datetime'}'" if $opt{'stop-datetime'};
     

128.     $MYSQLBINLOG .= " $srcfile";
     

129.     &mdebug("get_options::MYSQLBINLOG\n\t$MYSQLBINLOG");
     

130. 
     

131.     # 檢查binlog中是否含有 ddl sql: CREATE|ALTER|DROP|RENAME
     

132.     &check_binlog() unless ($opt{'i'});
     

133. 
     

134.     # 不使用mysqlbinlog過濾，USE dbname;方式可能會漏掉某些sql，所以不在mysqlbinlog過濾
     

135.     # 指定數(shù)據(jù)庫
     

136.     if ($opt{'d'}){
     

137.         my @dbs = split(/,/,$opt{'d'});
     

138.         foreach my $db (@dbs){
     

139.             $do_dbs{$db}=1;
     

140.         }
     

141.     }
     

142. 
     

143.     # 指定表
     

144.     if ($opt{'T'}){
     

145.         my @tbs = split(/,/,$opt{'T'});
     

146.         foreach my $tb (@tbs){
     

147.             $do_tbs{$tb}=1;
     

148.         }
     

149.     }
     

150. 
     

151.     # 提取有效DML SQL
     

152.     $ROLLBACK_DML = $MYSQLBINLOG." | grep '^### '";
     

153.     # 去掉注釋: '### ' -> ''
     

154.     # 刪除首尾空格
     

155.     $ROLLBACK_DML .= " | sed 's/###\\s*//g;s/\\s*\$//g'";
     

156.     &mdebug("rollback dml\n\t$ROLLBACK_DML");
     

157.     
     

158.     # 檢查內(nèi)容是否為空
     

159.     my $cmd = "$ROLLBACK_DML | wc -l";
     

160.     &mdebug("check contain dml sql\n\t$cmd");
     

161.     my $size = `$cmd`;
     

162.     chomp($size);
     

163.     unless ($size >0){
     

164.         &merror("binlog DML is empty:$ROLLBACK_DML");
     

165.     };
     

166. 
     

167. }    
     

168. 
     

169. 
     

170. # ----------------------------------------------------------------------------------------
     

171. # Func : check binlog contain DDL
     

172. # ----------------------------------------------------------------------------------------
     

173. sub check_binlog{
     

174.     &mdebug("$PRE_FUNCT check_binlog");
     

175.     my $cmd = "$MYSQLBINLOG ";
     

176.     $cmd .= " | grep -E -i '^(CREATE|ALTER|DROP|RENAME)' ";
     

177.     &mdebug("check binlog has DDL cmd\n\t$cmd");
     

178.     my $ddlcnt = `$cmd`;
     

179.     chomp($ddlcnt);
     

180. 
     

181.     my $ddlnum = `$cmd | wc -l`;
     

182.     chomp($ddlnum);
     

183.     my $res = 0;
     

184.     if ($ddlnum>0){
     

185.         # 在ddl sql前面加上前綴<DDL>
     

186.         $ddlcnt = `echo '$ddlcnt' | sed 's/^//g'`;
     

187.         &merror("binlog contain $ddlnum DDL:$MYSQLBINLOG. ddl sql:\n$ddlcnt");
     

188.     }
     

189. 
     

190.     return $res;
     

191. }
     

192. 
     

193. 
     

194. # ----------------------------------------------------------------------------------------
     

195. # Func : init all table column order
     

196. #        if input --database --table params, only get set table column order
     

197. # ----------------------------------------------------------------------------------------
     

198. sub init_tbcol{
     

199.     &mdebug("$PRE_FUNCT init_tbcol");
     

200.     # 提取DML語句
     

201.     my $cmd .= "$ROLLBACK_DML | grep -E '^(INSERT|UPDATE|DELETE)'";
     

202.     # 提取表名，并去重
     

203.     #$cmd .= " | awk '{if (\$1 ~ \"^UPDATE\") {print \$2}else {print \$3}}' | uniq ";
     

204.     $cmd .= " | awk '{if (\$1 ~ \"^UPDATE\") {print \$2}else {print \$3}}' | sort | uniq ";
     

205.     &mdebug("get table name cmd\n\t$cmd");
     

206.     open ALLTABLE, "$cmd | " or die "can't open file:$cmd\n";
     

207. 
     

208.     while (my $tbname = <ALLTABLE>){
     

209.         chomp($tbname);
     

210.         #if (exists $tbcol_pos{$tbname}){
     

211.         #    next;
     

212.         #}
     

213.         &init_one_tbcol($tbname) unless (&ignore_tb($tbname));
     

214.         
     

215.     }
     

216.     close ALLTABLE or die "can't close file:$cmd\n";
     

217. 
     

218.     # init tb col
     

219.     foreach my $tb (keys %tbcol_pos){
     

220.         &mdebug("tbname->$tb");
     

221.         my %colpos = %{$tbcol_pos{$tb}};
     

222.         foreach my $pos (keys %colpos){
     

223.             my $col = $colpos{$pos};
     

224.             my ($cname,$ctype) = split(/$SPLITER_COL/, $col);
     

225.             &mdebug("\tpos->$pos,cname->$cname,ctype->$ctype");
     

226.         }
     

227.     }
     

228. };
     

229. 
     

230. 
     

231. # ----------------------------------------------------------------------------------------
     

232. # Func : init one table column order
     

233. # ----------------------------------------------------------------------------------------
     

234. sub init_one_tbcol{
     

235.     my $tbname = shift;
     

236.     &mdebug("$PRE_FUNCT init_one_tbcol");
     

237.     # 獲取表結(jié)構(gòu)及列順序
     

238.     my $cmd = $MYSQL." --skip-column-names --silent -e 'desc $tbname'";
     

239.     # 提取列名，并拼接
     

240.     $cmd .= " | awk -F\'\\t\' \'{print NR\"$SPLITER_COL`\"\$1\"`$SPLITER_COL\"\$2}'";
     

241.     &mdebug("get table column infor cmd\n\t$cmd");
     

242.     open TBCOL,"$cmd | " or die "can't open desc $tbname;";
     

243. 
     

244.     my %colpos;
     

245.     while (my $line = <TBCOL>){
     

246.         chomp($line);
     

247.         my ($pos,$col,$coltype) = split(/$SPLITER_COL/,$line);
     

248.         &mdebug("linesss=$line\n\t\tpos=$pos\n\t\tcol=$col\n\t\ttype=$coltype");
     

249.         $colpos{$pos} = $col.$SPLITER_COL.$coltype;
     

250.     }
     

251.     close TBCOL or die "can't colse desc $tbname";
     

252. 
     

253.     $tbcol_pos{$tbname} = \%colpos;
     

254. }
     

255. 
     

256. 
     

257. # ----------------------------------------------------------------------------------------
     

258. # Func : rollback sql:    INSERT/UPDATE/DELETE
     

259. # ----------------------------------------------------------------------------------------
     

260. sub do_binlog_rollback{
     

261.     my $binlogfile = "$ROLLBACK_DML ";
     

262.     &mdebug("$PRE_FUNCT do_binlog_rollback");
     

263. 
     

264.     # INSERT|UPDATE|DELETE
     

265.     my $sqltype;
     

266.     # WHERE|SET
     

267.     my $sqlarea;
     

268.     
     

269.     my ($tbname, $sqlstr) = ('', '');
     

270.     my ($notignore, $isareabegin) = (0,0);
     

271. 
     

272.     # output sql file
     

273.     open SQLFILE, ">> $outfile" or die "Can't open sql file:$outfile";
     

274. 
     

275.     # binlog file
     

276.     open BINLOG, "$binlogfile |" or die "Can't open file: $binlogfile";
     

277.     while (my $line = <BINLOG>){
     

278.         chomp($line);
     

279.         if ($line =~ /^(INSERT|UPDATE|DELETE)/){
     

280.             # export sql
     

281.             if ($sqlstr ne ''){
     

282.                 $sqlstr .= ";\n";
     

283.                 print SQLFILE $sqlstr;
     

284.                 &mdebug("export sql\n\t".$sqlstr);
     

285.                 $sqlstr = '';
     

286.             }
     

287. 
     

288.             if ($line =~ /^INSERT/){
     

289.                 $sqltype = $SQLTYPE_IST;
     

290.                 $tbname = `echo '$line' | awk '{print \$3}'`;
     

291.                 chomp($tbname);
     

292.                 $sqlstr = qq{DELETE FROM $tbname};
     

293.             }elsif ($line =~ /^UPDATE/){
     

294.                 $sqltype = $SQLTYPE_UPD;
     

295.                 $tbname = `echo '$line' | awk '{print \$2}'`;
     

296.                 chomp($tbname);
     

297.                 $sqlstr = qq{UPDATE $tbname};
     

298.             }elsif ($line =~ /^DELETE/){
     

299.                 $sqltype = $SQLTYPE_DEL;    
     

300.                 $tbname = `echo '$line' | awk '{print \$3}'`;
     

301.                 chomp($tbname);
     

302.                 $sqlstr = qq{INSERT INTO $tbname};
     

303.             }
     

304. 
     

305.             # check ignore table
     

306.             if(&ignore_tb($tbname)){
     

307.                 $notignore = 0;
     

308.                 &mdebug("#IGNORE#:line:".$line);
     

309.                 $sqlstr = '';
     

310.             }else{
     

311.                 $notignore = 1;
     

312.                 &mdebug("#DO#:line:".$line);
     

313.             }
     

314.         }else {
     

315.             if($notignore){
     

316.                 &merror("can't get tbname") unless (defined($tbname));
     

317.                 if ($line =~ /^WHERE/){
     

318.                     $sqlarea = $SQLAREA_WHERE;
     

319.                     $sqlstr .= qq{ SET};
     

320.                     $isareabegin = 1;
     

321.                 }elsif ($line =~ /^SET/){
     

322.                     $sqlarea = $SQLAREA_SET;
     

323.                     $sqlstr .= qq{ WHERE};
     

324.                     $isareabegin = 1;
     

325.                 }elsif ($line =~ /^\@/){
     

326.                     $sqlstr .= &deal_col_value($tbname, $sqltype, $sqlarea, $isareabegin, $line);
     

327.                     $isareabegin = 0;
     

328.                 }else{
     

329.                     &mdebug("::unknown sql:".$line);
     

330.                 }
     

331.             }
     

332.         }
     

333.     }
     

334.     # export last sql
     

335.     if ($sqlstr ne ''){
     

336.         $sqlstr .= ";\n";
     

337.         print SQLFILE $sqlstr;
     

338.         &mdebug("export sql\n\t".$sqlstr);
     

339.     }
     

340.     
     

341.     close BINLOG or die "Can't close binlog file: $binlogfile";
     

342. 
     

343.     close SQLFILE or die "Can't close out sql file: $outfile";
     

344. 
     

345.     # 逆序
     

346.     # 1!G: 只有第一行不執(zhí)行G, 將hold space中的內(nèi)容append回到pattern space
     

347.     # h: 將pattern space 拷貝到hold space
     

348.     # $!d: 除最后一行都刪除
     

349.     my $invert = "sed -i '1!G;h;\$!d' $outfile";
     

350.     my $res = `$invert`;
     

351.     &mdebug("inverter order sqlfile :$invert");
     

352. }
     

353. 
     

354. # ----------------------------------------------------------------------------------------
     

355. # Func : transfer column pos to name
     

356. #    deal column value
     

357. #
     

358. # &deal_col_value($tbname, $sqltype, $sqlarea, $isareabegin, $line);
     

359. # ----------------------------------------------------------------------------------------
     

360. sub deal_col_value($$$$$){
     

361.     my ($tbname, $sqltype, $sqlarea, $isareabegin, $line) = @_;
     

362.     &mdebug("$PRE_FUNCT deal_col_value");
     

363.     &mdebug("input:tbname->$tbname,type->$sqltype,area->$sqlarea,areabegin->$isareabegin,line->$line");
     

364.     my @vals = split(/=/, $line);
     

365.     my $pos = substr($vals[0],1);
     

366.     my $valstartpos = length($pos)+2;
     

367.     my $val = substr($line,$valstartpos);
     

368.     my %tbcol = %{$tbcol_pos{$tbname}};
     

369.     my ($cname,$ctype) = split(/$SPLITER_COL/,$tbcol{$pos});
     

370.     &merror("can't get $tbname column $cname type") unless (defined($cname) || defined($ctype));
     

371.     &mdebug("column infor:cname->$cname,type->$ctype");
     

372. 
     

373.     # join str
     

374.     my $joinstr;
     

375.     if ($isareabegin){
     

376.         $joinstr = ' ';
     

377.     }else{
     

378.         # WHERE 被替換為 SET, 使用 , 連接
     

379.         if ($sqlarea eq $SQLAREA_WHERE){
     

380.             $joinstr = ', ';
     

381.         # SET 被替換為 WHERE 使用 AND 連接
     

382.         }elsif ($sqlarea eq $SQLAREA_SET){
     

383.             $joinstr = ' AND ';
     

384.         }else{
     

385.             &merror("!!!!!!The scripts error");
     

386.         }
     

387.     }
     

388.     
     

389.     #
     

390.     my $newline = $joinstr;
     

391. 
     

392.     # NULL value
     

393.     if (($val eq 'NULL') && ($sqlarea eq $SQLAREA_SET)){
     

394.         $newline .= qq{ $cname IS NULL};
     

395.     }else{
     

396.         # timestamp: record seconds
     

397.         if ($ctype eq 'timestamp'){
     

398.             $newline .= qq{$cname=from_unixtime($val)};
     

399.         # datetime: @n=yyyy-mm-dd hh::ii::ss
     

400.         }elsif ($ctype eq 'datetime'){
     

401.             $newline .= qq{$cname='$val'};
     

402.         }else{
     

403.             $newline .= qq{$cname=$val};
     

404.         }
     

405.     }
     

406.     &mdebug("\told>$line\n\tnew>$newline");
     

407.     
     

408.     return $newline;
     

409. }
     

410. 
     

411. # ----------------------------------------------------------------------------------------
     

412. # Func : check is ignore table
     

413. # params: IN table full name #  format:`dbname`.`tbname`
     

414. # RETURN：
     

415. #        0 not ignore
     

416. #        1 ignore
     

417. # ----------------------------------------------------------------------------------------
     

418. sub ignore_tb($){
     

419.     my $fullname = shift;
     

420.     # 刪除`
     

421.     $fullname =~ s/`//g;
     

422.     my ($dbname,$tbname) = split(/\./,$fullname);
     

423.     my $res = 0;
     

424.     
     

425.     # 指定了數(shù)據(jù)庫
     

426.     if ($opt{'d'}){
     

427.         # 與指定庫相同
     

428.         if ($do_dbs{$dbname}){
     

429.             # 指定表
     

430.             if ($opt{'T'}){
     

431.                 # 與指定表不同
     

432.                 unless ($do_tbs{$tbname}){
     

433.                     $res = 1;
     

434.                 }
     

435.             }
     

436.         # 與指定庫不同
     

437.         }else{
     

438.             $res = 1;
     

439.         }
     

440.     }
     

441.     #&mdebug("Table check ignore:$fullname->$res");
     

442.     return $res;
     

443. }
     

444. 
     

445. 
     

446. # ----------------------------------------------------------------------------------------
     

447. # Func : print debug msg
     

448. # ----------------------------------------------------------------------------------------
     

449. sub mdebug{
     

450.     my (@msg) = @_;
     

451.     print "@msg\n" if ($opt{'debug'});
     

452. }
     

453. 
     

454. 
     

455. # ----------------------------------------------------------------------------------------
     

456. # Func : print error msg and exit
     

457. # ----------------------------------------------------------------------------------------
     

458. sub merror{
     

459.     my (@msg) = @_;
     

460.     print ":@msg\n";
     

461.     &print_usage();
     

462.     exit(1);
     

463. }
     

464. 
     

465. # ----------------------------------------------------------------------------------------
     

466. # Func : print usage
     

467. # ----------------------------------------------------------------------------------------
     

468. sub print_usage{
     

469.     print <<EOF;
     

470. ==========================================================================================
     

471. Command line options :
     

472.     --help                # OUT : print help info
     

473.     -f, --srcfile            # IN : binlog file. [required]
     

474.     -o, --outfile            # OUT : output sql file. [required]
     

475.     -h, --host            # IN : host. default '127.0.0.1'
     

476.     -u, --user            # IN : user. [required]
     

477.     -p, --password            # IN : password. [required]
     

478.     -P, --port            # IN : port. default '3306'
     

479.     --start-datetime        # IN : start datetime
     

480.     --stop-datetime            # IN : stop datetime
     

481.     --start-position        # IN : start position
     

482.     --stop-position            # IN : stop position
     

483.     -d, --database            # IN : database, split comma
     

484.     -T, --table            # IN : table, split comma. [required] set -d
     

485.     -i, --ignore            # IN : ignore binlog check contain DDL(CREATE|ALTER|DROP|RENAME)
     

486.     --debug                # IN : print debug information
     

487. 
     

488. Sample :
     

489.    shell> perl binlog-rollback.pl -f 'mysql-bin.000001' -o '/tmp/t.sql' -u 'user' -p 'pwd'
     

490.    shell> perl binlog-rollback.pl -f 'mysql-bin.000001' -o '/tmp/t.sql' -u 'user' -p 'pwd' -i
     

491.    shell> perl binlog-rollback.pl -f 'mysql-bin.000001' -o '/tmp/t.sql' -u 'user' -p 'pwd' --debug
     

492.    shell> perl binlog-rollback.pl -f 'mysql-bin.000001' -o '/tmp/t.sql' -h '192.168.1.2' -u 'user' -p 'pwd' -P 3307
     

493.    shell> perl binlog-rollback.pl -f 'mysql-bin.000001' -o '/tmp/t.sql' -u 'user' -p 'pwd' --start-position=107
     

494.    shell> perl binlog-rollback.pl -f 'mysql-bin.000001' -o '/tmp/t.sql' -u 'user' -p 'pwd' --start-position=107 --stop-position=10000
     

495.    shell> perl binlog-rollback.pl -f 'mysql-bin.000001' -o '/tmp/t.sql' -u 'user' -p 'pwd' -d 'db1,db2'
     

496.    shell> perl binlog-rollback.pl -f 'mysql-bin.0000*' -o '/tmp/t.sql' -u 'user' -p 'pwd' -d 'db1,db2' -T 'tb1,tb2'
     

497. ==========================================================================================
     

498. EOF
     

499.     exit;
     

500. }
     

501. 
     

502. 
     

503. 1;

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