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package Iurt::Util;
use base qw(Exporter);
use Fcntl qw(:flock SEEK_END);
use strict;
our @EXPORT = qw(
plog_init
plog
pdie
ssh_setup
ssh
sout
sget
sput
);
my ($plog_name, $plog_file, $plog_level, $plog_color);
=head2 LOG HELPERS
=over 8
=item plog_init($program_name, $logfile)
=item plog_init($program_name, $logfile, $level)
Initialize plog with the program name, log file and optional log level.
If not specified, the log level will be set to 9999.
=cut
my %plog_ctr = (
red => "\x1b[31m",
green => "\x1b[32m",
yellow => "\x1b[33m",
blue => "\x1b[34m",
magenta => "\x1b[35m",
cyan => "\x1b[36m",
grey => "\x1b[37m",
bold => "\x1b[1m",
normal => "\x1b[0m",
);
my @plog_prefix = (
"",
"E: ",
"W: ",
"*: ",
"F: ",
"O: ",
"N: ",
"I: ",
"D: ",
);
my %plog_level = (
NONE => 0,
ERROR => 1,
WARN => 2,
MSG => 3,
FAIL => 4,
OK => 5,
NOTIFY => 6,
INFO => 7,
DEBUG => 8,
);
sub plog_init {
$plog_name = shift;
$plog_file = shift;
$plog_level = shift @_ || 9999;
$plog_color = shift @_ || 0;
$plog_level = 9999 if $ENV{PLOG_DEBUG};
$plog_color = 0 unless -t fileno $plog_file;
$_ .= "[$plog_name] " foreach @plog_prefix;
if ($plog_color) {
$plog_prefix[1] .= "$plog_ctr{bold}$plog_ctr{red}";
$plog_prefix[2] .= "$plog_ctr{bold}$plog_ctr{yellow}";
$plog_prefix[3] .= $plog_ctr{bold};
$plog_prefix[4] .= $plog_ctr{red};
$plog_prefix[5] .= $plog_ctr{green};
$plog_prefix[6] .= $plog_ctr{cyan};
$plog_prefix[8] .= $plog_ctr{yellow};
}
1;
}
=item plog($message)
=item plog($level, @message)
Print a log message in the format "program: I<message>\n" to the log
file specified in a call to plog_init(). If a level is specified,
the message will be printed only if the level is greater or equal the
level set with plog_init().
=back
=cut
sub plog {
my $level = $#_ ? shift : 'INFO';
$level = $plog_level{$level};
my ($p, $e) = ($plog_prefix[$level], ($plog_color ? $plog_ctr{normal} : ""));
if ($plog_level >= $level) {
flock($plog_file, LOCK_EX);
seek($plog_file, 0, SEEK_END);
print $plog_file "$p@_$e\n";
flock($plog_file, LOCK_UN);
}
}
sub pdie {
plog('ERROR', "@_");
die $@;
}
=head2 SSH HELPERS
=over 8
=item ssh_setup($options, $user, $host)
Set up ssh connections with the specified options, user and remote
host. Return an ssh handle to be used in ssh-based operations.
=cut
sub ssh_setup {
my $opt = shift;
my $user = shift;
my $host = shift;
my @conf = ($opt, $user, $host);
\@conf;
}
=item ssh($handle, @commmand)
Open an ssh connection with parameters specified in ssh_setup() and
execute I<@command>. Return the command execution status.
=cut
# This is currently implemented using direct calls to ssh/scp because.
# according to Warly's comments in ulri, using the perl SSH module
# gives us some performance problems
sub ssh {
my $conf = shift;
my ($opt, $user, $host) = @$conf;
system("ssh $opt -x $user\@$host @_");
}
=item sout($handle, @commmand)
Open an ssh connection with parameters specified in ssh_setup() and
execute I<@command>. Return the command output.
=cut
sub sout {
my $conf = shift;
my ($opt, $user, $host) = @$conf;
`ssh $opt -x $user\@$host @_ 2>/dev/null`;
}
=item sget($handle, $from, $to)
Get a file using scp, from the remote location I<$from> to the
local location I<$to>, using host and user specified in ssh_setup().
=cut
sub sget {
my $conf = shift;
my ($_opt, $user, $host) = @$conf;
system('scp', '-q', '-rc', 'arcfour', "$user\@$host:$_[0]", $_[1]);
}
=item sput($handle, $from, $to)
Send a file using scp, from a local location I<$from> to the remote
location I<$to>, using host and user specified in ssh_setup().
=back
=cut
sub sput {
my $conf = shift;
my ($_opt, $user, $host) = @$conf;
system('scp', '-q', '-rc', 'arcfour', $_[0], "$user\@$host:$_[1]");
}
=back
=cut
1;
|
