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# Purpose:
# Simple search with Perl for a pattern in some file.
#
# The advantages compared to thinkable auxiliary constructs using the
# mysqltest language and SQL are:
# 1. We do not need a running MySQL server.
# 2. SQL causes "noise" during debugging and increases the size of logs.
# Perl code does not disturb at all.
#
# The environment variables SEARCH_FILE and SEARCH_PATTERN must be set
# before sourcing this routine.
#
# In case of
# - SEARCH_FILE and/or SEARCH_PATTERN is not set
# - SEARCH_FILE cannot be opened
# the test will abort immediate.
perl;
use strict;
my $search_file= $ENV{'SEARCH_FILE'} or die "SEARCH_FILE not set";
my $search_pattern= $ENV{'SEARCH_PATTERN'} or die "SEARCH_PATTERN not set";
open(FILE, "$search_file") or die("Unable to open '$search_file': $!\n");
while (<FILE>) {
if (m{$search_pattern}) {
print "Pattern \"$search_pattern\" found\n";
close(FILE);
exit;
}
}
close(FILE);
print "Pattern \"$search_pattern\" not found\n";
EOF