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1 | #!/usr/bin/perl -w |
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2 | |
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3 | # ------------------------------------------------------------------- |
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4 | # $Id: sql_translator.pl,v 1.8 2003-05-09 16:49:41 kycl4rk Exp $ |
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5 | # ------------------------------------------------------------------- |
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6 | # Copyright (C) 2002 Ken Y. Clark <kycl4rk@users.sourceforge.net>, |
7 | # darren chamberlain <darren@cpan.org> |
8 | # |
9 | # This program is free software; you can redistribute it and/or |
10 | # modify it under the terms of the GNU General Public License as |
11 | # published by the Free Software Foundation; version 2. |
12 | # |
13 | # This program is distributed in the hope that it will be useful, but |
14 | # WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
16 | # General Public License for more details. |
17 | # |
18 | # You should have received a copy of the GNU General Public License |
19 | # along with this program; if not, write to the Free Software |
20 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
21 | # 02111-1307 USA |
22 | # ------------------------------------------------------------------- |
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23 | |
24 | use strict; |
25 | use Getopt::Long; |
26 | use Pod::Usage; |
27 | use SQL::Translator; |
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28 | |
29 | use Data::Dumper; |
30 | |
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31 | use vars qw( $VERSION ); |
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32 | $VERSION = sprintf "%d.%02d", q$Revision: 1.8 $ =~ /(\d+)\.(\d+)/; |
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33 | |
34 | my $from; # the original database |
35 | my $to; # the destination database |
36 | my $help; # show POD and bail |
37 | my $stdin; # whether to read STDIN for create script |
38 | my $no_comments; # whether to put comments in out file |
39 | my $show_warnings; # whether to show warnings from SQL::Translator |
40 | my $add_drop_table; # whether to show warnings from SQL::Translator |
41 | my $xlate; # user overrides for field translation |
42 | my $debug; # whether to print debug info |
43 | my $trace; # whether to print parser trace |
44 | my $list; # list all parsers and producers |
45 | my $trim_fields; # trim whitespace on xSV fields |
46 | my $scan_fields; # scan xSV fields for data types and sizes |
47 | my $field_separator; # for xSV files |
48 | my $record_separator; # for xSV files |
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49 | |
50 | # |
51 | # Get options, explain how to use the script if necessary. |
52 | # |
53 | GetOptions( |
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54 | 'f|from|parser:s' => \$from, |
55 | 't|to|producer:s' => \$to, |
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56 | 'h|help' => \$help, |
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57 | 'l|list' => \$list, |
58 | 'd|debug' => \$debug, |
59 | 'trace' => \$trace, |
60 | 'no-comments' => \$no_comments, |
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61 | 'show-warnings' => \$show_warnings, |
62 | 'add-drop-table' => \$add_drop_table, |
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63 | 'trim-fields' => \$trim_fields, |
64 | 'scan-fields' => \$scan_fields, |
65 | 'fs:s' => \$field_separator, |
66 | 'rs:s' => \$record_separator, |
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67 | ) or pod2usage(2); |
68 | |
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69 | my @files = @ARGV; # the create script(s) for the original db |
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70 | |
71 | pod2usage(1) if $help; |
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72 | |
73 | if ( $xlate ) { |
74 | my @fields = split /,/, $xlate; |
75 | $xlate = {}; |
76 | for my $field ( @fields ) { |
77 | my ( $from, $to ) = split(/\//, $field); |
78 | $xlate->{$from} = $to; |
79 | } |
80 | } |
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81 | |
82 | # |
83 | # If everything is OK, translate file(s). |
84 | # |
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85 | my $translator = SQL::Translator->new( |
86 | xlate => $xlate || {}, |
87 | debug => $debug || 0, |
88 | trace => $trace || 0, |
89 | no_comments => $no_comments || 0, |
90 | show_warnings => $show_warnings || 0, |
91 | add_drop_table => $add_drop_table || 0, |
92 | parser_args => { |
93 | trim_fields => $trim_fields, |
94 | scan_fields => $scan_fields, |
95 | field_separator => $field_separator, |
96 | record_separator => $record_separator, |
97 | } |
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98 | ); |
99 | |
100 | if ( $list ) { |
101 | my @parsers = $translator->list_parsers; |
102 | my @producers = $translator->list_producers; |
103 | |
104 | for ( @parsers, @producers ) { |
105 | if ( $_ =~ m/.+::(\w+)\.pm/ ) { |
106 | $_ = $1; |
107 | } |
108 | } |
109 | |
110 | print "\nParsers:\n", map { "\t$_\n" } sort @parsers; |
111 | print "\nProducers:\n", map { "\t$_\n" } sort @producers; |
112 | print "\n"; |
113 | exit(0); |
114 | } |
115 | |
116 | pod2usage(2) unless $from && $to && @files; |
117 | |
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118 | $translator->parser($from); |
119 | $translator->producer($to); |
120 | |
121 | for my $file (@files) { |
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122 | my $output = $translator->translate( $file ) or die |
123 | "Error: " . $translator->error; |
124 | print $output; |
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125 | } |
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126 | |
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127 | # ---------------------------------------------------- |
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128 | # It is not all books that are as dull as their readers. |
129 | # Henry David Thoreau |
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130 | # ---------------------------------------------------- |
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131 | |
132 | =head1 NAME |
133 | |
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134 | sql_translator.pl - convert an SQL database schema |
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135 | |
136 | =head1 SYNOPSIS |
137 | |
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138 | For help: |
139 | |
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140 | ./sql_translator.pl -h|--help |
141 | |
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142 | For a list of all parsers and producers: |
143 | |
144 | ./sql_translator.pl -l|--list |
145 | |
146 | To translate a schema: |
147 | |
148 | ./sql_translator.pl |
149 | -f|--from|--parser MySQL |
150 | -t|--to|--producer Oracle |
151 | [options] |
152 | file |
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153 | |
154 | Options: |
155 | |
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156 | -d|--debug Print debug info |
157 | --trace Print parser trace info |
158 | --no-comments Don't include comments in SQL output |
159 | --show-warnings Print to STDERR warnings of conflicts, etc. |
160 | --add-drop-table Add 'drop table' statements before creates |
161 | |
162 | xSV Options: |
163 | |
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164 | --fs The field separator |
165 | --rs The record separator |
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166 | --trim-fields Trim whitespace on fields |
167 | (true by default) |
168 | --scan-fields Scan fields for data types and sizes |
169 | (true by default) |
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170 | =head1 DESCRIPTION |
171 | |
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172 | This script is part of the SQL Fairy project |
173 | (http://sqlfairy.sourceforge.net/). It will try to convert any |
174 | database syntax for which it has a grammar into some other format it |
175 | knows about. |
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176 | |
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177 | If using "show-warnings," be sure to redirect STDERR to a separate file. |
178 | In bash, you could do this: |
179 | |
180 | $ sql_translator.pl -f MySQL -t PostgreSQL --show-warnings file.sql \ |
181 | 1>out 2>err |
182 | |
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183 | =head1 AUTHOR |
184 | |
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185 | Ken Y. Clark E<lt>kclark@cpan.orgE<gt> |
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186 | |
187 | =head1 SEE ALSO |
188 | |
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189 | SQL::Translator. |
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190 | |
191 | =cut |