diff options
Diffstat (limited to 'Master/tlpkg/tlperl.straw/bin/dbilogstrip')
-rwxr-xr-x | Master/tlpkg/tlperl.straw/bin/dbilogstrip | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl.straw/bin/dbilogstrip b/Master/tlpkg/tlperl.straw/bin/dbilogstrip new file mode 100755 index 00000000000..36623718308 --- /dev/null +++ b/Master/tlpkg/tlperl.straw/bin/dbilogstrip @@ -0,0 +1,50 @@ +#!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";
+}
+
+
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