138 lines
3.9 KiB
Perl
138 lines
3.9 KiB
Perl
# -*- cperl -*-
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# Copyright (c) 2007, 2015, 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 as published by
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# the Free Software Foundation; version 2 of the License.
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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 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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{
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my $proposed_logfile_name = "$log_dir/$logfile_base" . '_' . $i . ".log";
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if (! -f $proposed_logfile_name)
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{
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# We can use this file name
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$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")
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or print "Failed to open file '$filename' for reading: $!\n" and return;
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my @input = <$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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{
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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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# Extract the command name with args, ignoring its location
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sub get_command_name {
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my $cmd = shift;
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my @cmd_parts = split(' ', $cmd);
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my $cmd_base_name = fileparse($cmd_parts[0]);
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my $cmd_base_with_args = substr($cmd , index($cmd, $cmd_base_name));
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return $cmd_base_with_args;
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}
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#
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# exec_print_on_error - executes command, and prints n last lines of output
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# from the command only if the command fails. If the command runs
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# successfully, no output 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 (default 200)
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# Returns:
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# 1 on success, 0 on error.
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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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#
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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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my $cmd_base_name = get_command_name($cmd);
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# Redirect stdout and stderr of command to log file
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$cmd .= " > $logfile_name 2>&1";
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# Execute command
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print "Running '$cmd_base_name'\n";
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system($cmd);
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print "Result of '$cmd_base_name': $?\n";
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if ($? == 0)
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{
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# Test program suceeded
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return 1;
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}
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# Test program failed
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if ($? == -1)
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{
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# Failed to execute program
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print "Failed to execute '$cmd': $!\n";
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}
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elsif ($?)
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{
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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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