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## --------------------------------------------------------------------------- |
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## $Id: shortcuts.pm,v 1.13 2003/06/23 20:58:31 joko Exp $ |
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## --------------------------------------------------------------------------- |
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## $Log: shortcuts.pm,v $ |
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## Revision 1.13 2003/06/23 20:58:31 joko |
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## restructured, hopefully makes Linux and Windows (and *BSD) more compatible... what about IPC::Cmd??? |
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## |
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## Revision 1.12 2003/06/23 19:43:19 joko |
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## minor cleanup |
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## now using IPC::Session::NoShell |
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## |
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## Revision 1.11 2003/06/23 17:41:50 jonen |
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## + NEW - used IPC::Session instead of IPC::Run to get better results at linux |
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## |
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## Revision 1.10 2003/06/23 15:59:16 joko |
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## major/minor fixes? |
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## |
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## Revision 1.9 2003/05/13 05:36:24 joko |
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## heavy modifications to run_cmd |
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## + sub get_executable |
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## + sub get_executable_wrapper |
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## |
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## Revision 1.8 2003/04/04 17:31:59 joko |
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## + sub make_guid |
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## |
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## Revision 1.7 2003/03/29 07:24:10 joko |
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## enhanced 'run_cmd': now tries to execute program with appropriate application (e.g. 'cmd.exe' or 'perl') |
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## |
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## Revision 1.6 2003/03/28 06:58:06 joko |
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## new: 'run_cmd' now asynchronous! (via IPC::Run...) |
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## |
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## Revision 1.5 2003/02/22 17:26:13 joko |
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## + enhanced unix compatibility fix |
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## |
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## Revision 1.4 2003/02/22 17:19:36 joko |
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## + unix compatibility fix |
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## |
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## Revision 1.3 2003/02/14 14:17:04 joko |
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## - shortened seperator |
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## |
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## Revision 1.2 2003/02/11 05:14:28 joko |
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## + refactored code from libp.pm |
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## |
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## Revision 1.1 2003/02/09 04:49:45 joko |
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## + shortcuts now refactored to this file |
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## |
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## --------------------------------------------------------------------------- |
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|
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|
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package shortcuts; |
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|
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use strict; |
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use warnings; |
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|
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require Exporter; |
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our @ISA = qw( Exporter ); |
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our @EXPORT_OK = qw( |
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strftime |
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now today |
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run_cmd run_cmds |
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get_chomped |
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bool2status |
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make_guid |
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); |
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|
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|
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use Data::Dumper; |
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use POSIX qw( strftime ); |
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#use IPC::Run qw( run timeout ); |
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use IPC::Run qw( start pump finish timeout run timer ) ; |
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use Carp; |
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|
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# NEW - 2003-06-23 for Linux (what about *BSD?) |
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use IPC::Session; |
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|
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use File::Spec; |
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use Proc::Background; |
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|
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|
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# $now_string = strftime "%a %b %e %H:%M:%S %Y", localtime; |
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# see "perldoc -f localtime" |
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sub now { |
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my $options = shift; |
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my $pattern = "%Y-%m-%d %H:%M:%S"; |
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$pattern = "%Y-%m-%d_%H-%M-%S" if $options->{fs}; |
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my $result = strftime($pattern, localtime); |
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return $result; |
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} |
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|
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sub today { |
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return strftime("%Y-%m-%d", localtime); |
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} |
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|
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sub RUNNING_IN_HELL () { $^O eq 'MSWin32' } |
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|
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|
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sub get_executable { |
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my $cmd = shift; |
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# FIXME: detect type of program and run with proper application/interpreter |
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# using IPC::Run we have to dispatch this on our own! *no* os-interaction or interpolation here!? |
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# => better use absolute path-names only?! |
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my $application = ''; |
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if ($cmd =~ m/\w+\.pl\s*.*/) { |
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$application = get_interpreter_wrapper($cmd, 'perl'); |
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#$cmd = "$application $cmd" if $application; |
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$application .= ' '; |
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|
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} else { |
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$application = './'; |
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} |
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return $application; |
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} |
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|
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sub get_interpreter_wrapper { |
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my $cmd = shift; |
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my $language = shift; |
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$language ||= ''; |
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|
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my $wrapper = ''; |
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|
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if ($language eq 'perl') { |
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|
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if (RUNNING_IN_HELL()) { |
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# Required to adapt to IPC::Run on win32. |
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#$wrapper = 'cmd.exe /C perl'; |
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#$wrapper = 'start perl'; |
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$wrapper = 'perl'; |
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#$wrapper = 'cmd.exe /C'; |
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} else { |
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# NEW 2003-06-23 - needed if used with IPC::Session (at Linux) |
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# whats about Win32? |
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$wrapper = 'perl'; |
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} |
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|
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} else { |
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die("No wrapper for language '$language'."); |
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} |
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|
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return $wrapper; |
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} |
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|
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|
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sub run_cmd { |
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my $cmd = shift; |
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my $caption = shift; |
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my $options = shift; |
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|
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#print STDOUT "run_cmd - options: ", Dumper($options), "\n"; |
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|
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# report - header |
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my $sep = "-" x 60; |
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print STDOUT $sep, "\n"; |
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print STDOUT " ", $cmd; |
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print STDOUT " - ", $caption if $caption; |
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print STDOUT "\n", $sep, "\n"; |
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|
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# strip name of executable from full command string |
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$cmd =~ m/^(.+?)\s(.*)$/; |
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my $executable = $1; |
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my $executable_args = $2; |
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|
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=pod |
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# for unix: check if executable is in local directory, if so - prefix with './' |
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if (!RUNNING_IN_HELL()) { |
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#if ($cmd !~ m/\//) { |
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if (-e $executable) { |
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} |
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} |
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=cut |
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|
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# new of 2003-05-07: basedir option to be prepended to command string |
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my $basedir = $options->{BASEDIR}; |
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my $use_path = $options->{USE_PATH}; |
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|
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# for all systems: check existance of files - use basedir if given, try current directory otherwise |
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if ($basedir) { |
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-e "$basedir/$executable" or die("$basedir/$executable does not exist."); |
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$basedir .= '/'; |
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$cmd = "$basedir$cmd"; |
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} elsif ($use_path) { |
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#$basedir = ""; |
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$basedir = findpath($executable); |
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#print "basedir: $basedir", "\n"; |
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my $abspath = File::Spec->catfile($basedir, $executable); |
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#print STDOUT "PATH: ", $abspath, "\n"; |
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-e $abspath or die("$abspath does not exist."); |
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$cmd = $abspath . ' ' . $executable_args; |
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} else { |
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-e $executable or die("$executable does not exist."); |
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#$basedir = "."; |
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#$basedir .= './'; |
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$basedir = ""; |
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$cmd = "$basedir$cmd"; |
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} |
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|
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# V1 - backticks or qq{} |
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#`$cmd`; |
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#qq{$cmd}; |
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|
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# V2 - via 'system' |
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#system($cmd); |
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|
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#if (not $use_path) { |
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my $application = get_executable($cmd); |
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$cmd = "$application$cmd" if $application; |
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#} |
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|
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# V3 - using IPC (optional) |
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if ($options->{async}) { |
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|
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#run \@cmd, \$in, \$out, \$err, timeout( 10 ) or die "cat: $?"; |
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my @cmd = split(' ', $cmd); |
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|
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|
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# V3.1 - using IPC::Run |
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# |
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# tests: |
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|
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if (RUNNING_IN_HELL()) { |
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|
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#my $in; my $out; my $err; |
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print STDOUT "run_cmd: IPC::Run: $cmd", "\n"; |
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|
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#print STDOUT "findpath: ", findpath('rap.pl'), "\n"; |
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|
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# no success! |
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#start \@cmd, timeout(0) or croak("run_cmd: IPC::Run could not start '$cmd'."); |
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# |
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# success on Win32, but seems broken at 'timeout' on linux: |
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#run(\@cmd, timeout(3)) or croak("run_cmd: IPC::Run could not start '$cmd'."); |
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#start(\@cmd, timer(2)) or croak("run_cmd: IPC::Run could not start '$cmd'."); |
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#start(\@cmd, \undef) or croak("run_cmd: IPC::Run could not start '$cmd'."); |
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#start \@cmd or croak("run_cmd: IPC::Run could not start '$cmd'."); |
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#start(\@cmd, timeout(1)) or croak("run_cmd: IPC::Run could not start '$cmd'."); |
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|
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# other tests ;) |
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#$IPC::Run::Timer::timeout = 2000; |
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#start $cmd or die("IPC::Run could not start '$cmd'."); |
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|
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#my $in; my $out; my $t; |
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#my $harness = start( \@cmd, \$in, \$out, $t = timer( 5 ) ) ; |
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#my $harness = start( \@cmd ) ; |
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#$harness->pump_nb(); |
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|
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#my $postfix = '2>&1 |'; |
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#open PIPE, "$cmd $postfix" or die("run_cmd: could not run in background via open!"); |
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|
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my $proc1 = Proc::Background->new(@cmd); |
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print "pid: ", $proc1->pid(), "\n"; |
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|
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|
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} else { |
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|
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print STDOUT "run_cmd: IPC::Session: $cmd", "\n"; |
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|
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# V3.2 - using IPC::Session |
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# success on Linux AND Win32 ?? |
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# |
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# set timeout: |
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# (don't really know why we needs 2 secconds |
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# to wait for init of process !?!) |
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my $session_timeout = 3; |
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# set session name (default: cmd as string): |
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my $session_name = $cmd; |
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# create session: |
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my $session = IPC::Session->new($session_name, $session_timeout); |
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|
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# send 'cmd' to session - not required since complete command is sent via constructor above |
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$session->send(\@cmd); |
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|
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#print $session->stdout(), "\n"; |
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|
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# optional switch case: |
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#for ($session->stdout()) { |
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#} |
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# optional get error: |
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#my $err = session->stderr(); |
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} |
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|
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} else { |
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print STDOUT "run_cmd: system('$cmd').", "\n"; |
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system($cmd); |
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} |
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|
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print STDOUT "run_cmd: ready.", "\n"; |
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|
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} |
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|
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sub run_cmds { |
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my $options = {}; |
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if (ref $_[$#_] eq 'HASH') { |
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#print "YAI", "\n"; |
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$options = pop @_; |
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} |
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foreach (@_) { |
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run_cmd($_, '', $options); |
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} |
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} |
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|
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sub get_chomped { |
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my $str = shift; |
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chomp($str); |
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return $str; |
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} |
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|
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sub bool2status { |
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my $bool = shift; |
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return ($bool ? 'ok' : 'failed'); |
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} |
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|
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# create global unique identifers using Data::UUID |
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# if updating this code, please also modify Tangram::Storage::make_guid |
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sub make_guid |
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{ |
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my $self = shift; |
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|
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my $guid; |
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|
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# try to use Data::UUID first ... |
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eval("use Data::UUID;"); |
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if (!$@) { |
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my $ug = Data::UUID->new(); |
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$guid = $ug->create_str(); |
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|
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# ... if this fails, try to fallback to Data::UUID::PurePerl instead ... |
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} else { |
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eval("use Data::UUID::PurePerl;"); |
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if (!$@) { |
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$guid = Data::UUID::PurePerl::generate_id(); |
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} else { |
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croak "couldn't create globally unique identifier"; |
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} |
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} |
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|
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return $guid; |
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} |
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|
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# [modified] from: http://www.mit.edu/afs/athena/contrib/watchmaker/src/pt/Configure |
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sub findpath { |
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#local($path); |
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#local($arg) = shift; |
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my $arg = shift; |
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my $path; |
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#for my $dir (split(/:/,$ENV{'PATH'})) { |
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for my $dir (File::Spec->path()) { |
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#if (-x "$dir/$arg" && -f _) { |
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#print STDOUT "scanning: ", "$dir/$arg", "\n"; |
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if (-e "$dir/$arg") { |
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#$path = "$dir/$arg"; |
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#$path = "$dir/"; |
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$path = $dir; |
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last; |
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} |
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} |
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$path; |
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} |
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|
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1; |
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__END__ |
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