137 lines
3.9 KiB
Perl
137 lines
3.9 KiB
Perl
# -*- cperl -*-
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# Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License, version 2.0,
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# as published by the Free Software Foundation.
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#
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# This program is also distributed with certain software (including
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# but not limited to OpenSSL) that is licensed under separate terms,
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# as designated in a particular file or component or in included license
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# documentation. The authors of MySQL hereby grant you an additional
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# permission to link the program and your derivative works with the
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# separately licensed software that they have included with MySQL.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License, version 2.0, for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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package My::Exec;
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use strict;
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use warnings;
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use Carp;
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use File::Basename;
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use IO::File;
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use base qw(Exporter);
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our @EXPORT = qw(exec_print_on_error);
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# Generate a logfile name from a command
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sub get_logfile_name {
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my $cmd = shift;
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# Get logfile name
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my @cmd_parts = split(' ', $cmd);
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my $logfile_base = fileparse($cmd_parts[0]);
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$logfile_base =~ s/[^a-zA-Z0-9_]*//g;
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my $logfile_name = "";
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my $log_dir = $ENV{MYSQLTEST_VARDIR};
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for my $i (1 .. 100) {
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my $proposed_logfile_name = "$log_dir/$logfile_base" . '_' . $i . ".log";
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if (!-f $proposed_logfile_name) {
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# We can use this file name
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$logfile_name = $proposed_logfile_name;
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last;
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}
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}
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return $logfile_name;
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}
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# Show the last "max_lines" from file
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sub show_last_lines_from_file {
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my ($filename, $max_lines) = @_;
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my $F = IO::File->new($filename, "r") or
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print "Failed to open file '$filename' for reading: $!\n" and
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return;
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my @input = <$F>;
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my $lines = scalar(@input);
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$lines = $max_lines if $lines > $max_lines;
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print "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n";
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print "Last '$lines' lines of output from command:\n";
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foreach my $line (splice(@input, -$lines)) {
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print $line;
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}
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print "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n";
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$F->close();
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}
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# Executes command, and prints n last lines of output from the command
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# only if the command fails. If the command runs successfully, no output
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# is written.
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#
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# Parameters:
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# cmd - the command to run
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# max_lines - the maximum number of lines of output to show on error
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# (default 200).
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#
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# Returns:
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# 1 on success
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# 0 on error.
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#
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# Example:
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# use My::Exec;
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# my $res = exec_print_on_error("./mtr --suite=ndb ndb_dd_varsize");
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sub exec_print_on_error {
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my $cmd = shift;
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my $max_lines = shift || 200;
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my $logfile_name = get_logfile_name($cmd);
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# Redirect stdout and stderr of command to log file
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$cmd = $cmd . " > $logfile_name 2>&1";
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# Execute command
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print "Running command\n";
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system($cmd);
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print "Result of command: $?\n";
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if ($? == 0) {
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# Test program suceeded
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# Remove log file and return
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if (unlink($logfile_name) == 1) {
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return 1;
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} else {
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print "Failed to remove log file at '$logfile_name'\n";
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return 0;
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}
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}
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# Test program failed
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if ($? == -1) {
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# Failed to execute program
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print "Failed to execute '$cmd': $!\n";
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} elsif ($?) {
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# Test program failed
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my $sig = $? & 127;
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my $return = $? >> 8;
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print "Command that failed: '$cmd'\n";
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print "Test program killed by signal $sig\n" if $sig;
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print "Test program failed with error $return\n" if $return;
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# Show the "max_lines" last lines from the log file
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show_last_lines_from_file($logfile_name, $max_lines);
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}
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return 0;
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}
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