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-#!perl
-
-=head1 NAME
-
-dbilogstrip - filter to normalize DBI trace logs for diff'ing
-
-=head1 SYNOPSIS
-
-Read DBI trace file C<dbitrace.log> and write out a stripped version to C<dbitrace_stripped.log>
-
- dbilogstrip dbitrace.log > dbitrace_stripped.log
-
-Run C<yourscript.pl> twice, each with different sets of arguments, with
-DBI_TRACE enabled. Filter the output and trace through C<dbilogstrip> into a
-separate file for each run. Then compare using diff. (This example assumes
-you're using a standard shell.)
-
- DBI_TRACE=2 perl yourscript.pl ...args1... 2>&1 | dbilogstrip > dbitrace1.log
- DBI_TRACE=2 perl yourscript.pl ...args2... 2>&1 | dbilogstrip > dbitrace2.log
- diff -u dbitrace1.log dbitrace2.log
-
-=head1 DESCRIPTION
-
-Replaces any hex addresses, e.g, C<0x128f72ce> with C<0xN>.
-
-Replaces any references to process id or thread id, like C<pid#6254> with C<pidN>.
-
-So a DBI trace line like this:
-
- -> STORE for DBD::DBM::st (DBI::st=HASH(0x19162a0)~0x191f9c8 'f_params' ARRAY(0x1922018)) thr#1800400
-
-will look like this:
-
- -> STORE for DBD::DBM::st (DBI::st=HASH(0xN)~0xN 'f_params' ARRAY(0xN)) thrN
-
-=cut
-
-use strict;
-
-while (<>) {
- # normalize hex addresses: 0xDEADHEAD => 0xN
- s/ \b 0x [0-9a-f]+ /0xN/gx;
- # normalize process and thread id number
- s/ \b (pid|tid|thr) \W? \d+ /${1}N/gx;
-
-} continue {
- print or die "-p destination: $!\n";
-}
-
-