perl/libs/shortcuts.pm

## ---------------------------------------------------------------------------
##  $Id: shortcuts.pm,v 1.14 2003/06/24 20:13:18 joko Exp $
## ---------------------------------------------------------------------------
##  $Log: shortcuts.pm,v $
##  Revision 1.14  2003/06/24 20:13:18  joko
##  + sub findpatch
##  + now using findpatch and Proc::Background for win32/perl
##
##  Revision 1.13  2003/06/23 20:58:31  joko
##  restructured, hopefully makes Linux and Windows (and *BSD) more compatible...  what about IPC::Cmd???
##
##  Revision 1.12  2003/06/23 19:43:19  joko
##  minor cleanup
##  now using IPC::Session::NoShell
##
##  Revision 1.11  2003/06/23 17:41:50  jonen
##  + NEW - used IPC::Session instead of IPC::Run to get better results at linux
##
##  Revision 1.10  2003/06/23 15:59:16  joko
##  major/minor fixes?
##
##  Revision 1.9  2003/05/13 05:36:24  joko
##  heavy modifications to run_cmd
##  + sub get_executable
##  + sub get_executable_wrapper
##
##  Revision 1.8  2003/04/04 17:31:59  joko
##  + sub make_guid
##
##  Revision 1.7  2003/03/29 07:24:10  joko
##  enhanced 'run_cmd': now tries to execute program with appropriate application (e.g. 'cmd.exe' or 'perl')
##
##  Revision 1.6  2003/03/28 06:58:06  joko
##  new: 'run_cmd' now asynchronous! (via IPC::Run...)
##
##  Revision 1.5  2003/02/22 17:26:13  joko
##  + enhanced unix compatibility fix
##
##  Revision 1.4  2003/02/22 17:19:36  joko
##  + unix compatibility fix
##
##  Revision 1.3  2003/02/14 14:17:04  joko
##  - shortened seperator
##
##  Revision 1.2  2003/02/11 05:14:28  joko
##  + refactored code from libp.pm
##
##  Revision 1.1  2003/02/09 04:49:45  joko
##  + shortcuts now refactored to this file
##
## ---------------------------------------------------------------------------


package shortcuts;

use strict;
use warnings;

require Exporter;
our @ISA = qw( Exporter );
our @EXPORT_OK = qw( 
  strftime
  now today
  run_cmd run_cmds
  get_chomped
  bool2status
  make_guid
);


use Data::Dumper;
use POSIX qw( strftime );
#use IPC::Run qw( run timeout );
use IPC::Run qw( start pump finish timeout run timer ) ;
use Carp;

# NEW - 2003-06-23 for Linux (what about *BSD?)
use IPC::Session;

use File::Spec;
use Proc::Background;


# $now_string = strftime "%a %b %e %H:%M:%S %Y", localtime;
# see "perldoc -f localtime"
sub now {
  my $options = shift;
  my $pattern = "%Y-%m-%d %H:%M:%S";
  $pattern = "%Y-%m-%d_%H-%M-%S" if $options->{fs};
  my $result = strftime($pattern, localtime);
  return $result;
}

sub today {
  return strftime("%Y-%m-%d", localtime);
}

sub RUNNING_IN_HELL () { $^O eq 'MSWin32' }


sub get_executable {
  my $cmd = shift;
  # FIXME: detect type of program and run with proper application/interpreter
  # using IPC::Run we have to dispatch this on our own! *no* os-interaction or interpolation here!?
  # => better use absolute path-names only?!
  my $application = '';
  if ($cmd =~ m/\w+\.pl\s*.*/) {
      $application = get_interpreter_wrapper($cmd, 'perl');
      #$cmd = "$application $cmd" if $application;
      $application .= ' ';
    
  } else {
    $application = './';
  }
  return $application;
}

sub get_interpreter_wrapper {
  my $cmd = shift;
  my $language = shift;
  $language ||= '';

  my $wrapper = '';

  if ($language eq 'perl') {
  
    if (RUNNING_IN_HELL()) {
      # Required to adapt to IPC::Run on win32.
      #$wrapper = 'cmd.exe /C perl';
      #$wrapper = 'start perl';
      $wrapper = 'perl';
      #$wrapper = 'cmd.exe /C';
    } else {
      # NEW 2003-06-23 - needed if used with IPC::Session (at Linux)
      #  whats about Win32?
      $wrapper = 'perl';
    }
    
  } else {
    die("No wrapper for language '$language'.");
  }
  
  return $wrapper;
}


sub run_cmd {
  my $cmd = shift;
  my $caption = shift;
  my $options = shift;
  
  #print STDOUT "run_cmd - options: ", Dumper($options), "\n";
  
  # report - header
  my $sep = "-" x 60;
  print STDOUT $sep, "\n";
  print STDOUT "  ", $cmd;
  print STDOUT " - ", $caption if $caption;
  print STDOUT "\n", $sep, "\n";
  
  # strip name of executable from full command string
  $cmd =~ m/^(.+?)\s(.*)$/;
  my $executable = $1;
  my $executable_args = $2;
  
=pod
  # for unix: check if executable is in local directory, if so - prefix with './'
  if (!RUNNING_IN_HELL()) {
    #if ($cmd !~ m/\//) {
    if (-e $executable) {
    }
  }
=cut

  # new of 2003-05-07: basedir option to be prepended to command string
  my $basedir = $options->{BASEDIR};
  my $use_path = $options->{USE_PATH};

  # for all systems: check existance of files - use basedir if given, try current directory otherwise
  if ($basedir) {
    -e "$basedir/$executable" or die("$basedir/$executable does not exist.");
    $basedir .= '/';
    $cmd = "$basedir$cmd";
  } elsif ($use_path) {
    #$basedir = "";
    $basedir = findpath($executable);
    #print "basedir: $basedir", "\n";
    my $abspath = File::Spec->catfile($basedir, $executable);
    #print STDOUT "PATH: ", $abspath, "\n";
    -e $abspath or die("$abspath does not exist.");
    $cmd = $abspath . ' ' . $executable_args;
  } else {
    -e $executable or die("$executable does not exist.");
    #$basedir = ".";
    #$basedir .= './';
    $basedir = "";
    $cmd = "$basedir$cmd";
  }

  # V1 - backticks or qq{}
  #`$cmd`;
  #qq{$cmd};
  
  # V2 - via 'system'
  #system($cmd);

  #if (not $use_path) {
    my $application = get_executable($cmd);
    $cmd = "$application$cmd" if $application;
  #}

  # V3 - using IPC (optional)
  if ($options->{async}) {

    #run \@cmd, \$in, \$out, \$err, timeout( 10 ) or die "cat: $?";
    my @cmd = split(' ', $cmd);
    
    
    # V3.1 - using IPC::Run
    #
    # tests:
    
    if (RUNNING_IN_HELL()) {
    
      #my $in; my $out; my $err;
      print STDOUT "run_cmd: IPC::Run: $cmd", "\n";
      
      #print STDOUT "findpath: ", findpath('rap.pl'), "\n";
      
      # no success!
      #start \@cmd, timeout(0) or croak("run_cmd: IPC::Run could not start '$cmd'.");
      #
      # success on Win32, but seems broken at 'timeout' on linux:
      #run(\@cmd, timeout(3)) or croak("run_cmd: IPC::Run could not start '$cmd'.");
      #start(\@cmd, timer(2)) or croak("run_cmd: IPC::Run could not start '$cmd'.");
      #start(\@cmd, \undef) or croak("run_cmd: IPC::Run could not start '$cmd'.");
      #start \@cmd or croak("run_cmd: IPC::Run could not start '$cmd'.");
      #start(\@cmd, timeout(1)) or croak("run_cmd: IPC::Run could not start '$cmd'.");      
          
      # other tests ;)
      #$IPC::Run::Timer::timeout = 2000;
      #start $cmd or die("IPC::Run could not start '$cmd'.");
      
      #my $in; my $out; my $t;
      #my $harness = start( \@cmd, \$in, \$out, $t = timer( 5 ) ) ;
      #my $harness = start( \@cmd ) ;
      #$harness->pump_nb();
      
      #my $postfix = '2>&1 |';
      #open PIPE, "$cmd $postfix" or die("run_cmd: could not run in background via open!");
      
      my $proc1 = Proc::Background->new(@cmd);
      print "pid: ", $proc1->pid(), "\n";

      
    } else {

      #print STDOUT "run_cmd: IPC::Session: $cmd", "\n";

      # V3.2 - using IPC::Session
      #  success on Linux AND Win32 ??
      #
      # set timeout:
      #  (don't really know why we needs some secconds
      #   to wait for init of process !?!)
      #my $session_timeout = 15;
      # set session name (default: cmd as string):
      #my $session_command = $cmd;
      #my $session_shell = "/bin/sh";
      # create session (beware of using '->new' here!?):
      #my $session = new IPC::Session($session_shell, $session_timeout);
      
      # send 'cmd' to session - not required since complete command is sent via constructor above
      #$session->send($cmd);

      #my $output = $session->stdout();
      #print "WS::Admin started.\n" if $output = ' ';

      # tests
      #$session->send("echo hello");
      #chomp(my $hello = $session->stdout());      
      #print "ok 3\n" if $hello eq "hello";
      
      # optional switch case:
      #for ($session->stdout()) {
      #  /_bootDataBases/ && do { print "WS::Admin started.\n" };
      #}
      # optional get error:
      #my $err = session->stderr();
      #print "ERR: " . Dumper($err) . "\n";

      #open( *OUT, ">out.txt" ) ;
      #open( *ERR, ">err.txt" ) ;
      #run(\@cmd, \undef,  \*OUT, \*ERR  ) or croak("run_cmd: IPC::Run could not start '$cmd'.");
      #my ($out, $err);
      #my $h = start(\@cmd, \undef,  \*OUT, \*ERR  ) or croak("run_cmd: IPC::Run could not start '$cmd'.");
      #finish $h if $err =~ /error/;
      
      # get child pid 
      #my $kid;
      #do { $kid=wait(); } until $kid > 0;
      #print "Child PID: " . $kid . "n";

      #finish $h;

      
      # test using Proc::Background - success !!
      my $proc = Proc::Background->new($cmd);
      my $kid = $proc->pid();
      print STDOUT "run_cmd: Proc::Background: $cmd, child PID $kid", "\n";
      $proc->wait();
      $proc->die();

    }


  } elsif ($options->{detach}) {
    print STDERR "run_cmd: system('$cmd' &).", "\n";
    system($cmd . ' &');    

  } else {
    print STDOUT "run_cmd: system('$cmd').", "\n";
    system($cmd);
  }
  
  print STDOUT "run_cmd: ready.", "\n";
  
}

sub run_cmds {
  my $options = {};
  if (ref $_[$#_] eq 'HASH') {
    #print "YAI", "\n";
    $options = pop @_;
  }
  foreach (@_) {
    run_cmd($_, '', $options);
  }
}

sub get_chomped {
  my $str = shift;
  chomp($str);
  return $str;
}

sub bool2status {
  my $bool = shift;
  return ($bool ? 'ok' : 'failed');
}

# create global unique identifers using Data::UUID
# if updating this code, please also modify Tangram::Storage::make_guid
sub make_guid 
  {
    my $self = shift;

    my $guid;

    # try to use Data::UUID first ...
    eval("use Data::UUID;");
    if (!$@) {
      my $ug = Data::UUID->new();
      $guid = $ug->create_str();
      
    # ... if this fails, try to fallback to Data::UUID::PurePerl instead ...
    } else {
      eval("use Data::UUID::PurePerl;");
      if (!$@) {
        $guid = Data::UUID::PurePerl::generate_id();
      } else {
        croak "couldn't create globally unique identifier";
      }
    }
    
    return $guid;
  }

# [modified] from: http://www.mit.edu/afs/athena/contrib/watchmaker/src/pt/Configure
sub findpath {
    #local($path);
    #local($arg) = shift;
    my $arg = shift;
    my $path;
    #for my $dir (split(/:/,$ENV{'PATH'})) {
    for my $dir (File::Spec->path()) {
        #if (-x "$dir/$arg" && -f _) {
        #print STDOUT "scanning: ", "$dir/$arg", "\n";
        if (-e "$dir/$arg") {
            #$path = "$dir/$arg";
            #$path = "$dir/";
            $path = $dir;
            last;
        } 
    } 
    $path;
}

1;
__END__
1	joko	1.1	## ---------------------------------------------------------------------------
2	jonen	1.15	## $Id: shortcuts.pm,v 1.14 2003/06/24 20:13:18 joko Exp $
3	joko	1.1	## ---------------------------------------------------------------------------
4			## $Log: shortcuts.pm,v $
5	jonen	1.15	## Revision 1.14 2003/06/24 20:13:18 joko
6			## + sub findpatch
7			## + now using findpatch and Proc::Background for win32/perl
8			##
9	joko	1.14	## Revision 1.13 2003/06/23 20:58:31 joko
10			## restructured, hopefully makes Linux and Windows (and *BSD) more compatible... what about IPC::Cmd???
11			##
12	joko	1.13	## Revision 1.12 2003/06/23 19:43:19 joko
13			## minor cleanup
14			## now using IPC::Session::NoShell
15			##
16	joko	1.12	## Revision 1.11 2003/06/23 17:41:50 jonen
17			## + NEW - used IPC::Session instead of IPC::Run to get better results at linux
18			##
19	jonen	1.11	## Revision 1.10 2003/06/23 15:59:16 joko
20			## major/minor fixes?
21			##
22	joko	1.10	## Revision 1.9 2003/05/13 05:36:24 joko
23			## heavy modifications to run_cmd
24			## + sub get_executable
25			## + sub get_executable_wrapper
26			##
27	joko	1.9	## Revision 1.8 2003/04/04 17:31:59 joko
28			## + sub make_guid
29			##
30	joko	1.8	## Revision 1.7 2003/03/29 07:24:10 joko
31			## enhanced 'run_cmd': now tries to execute program with appropriate application (e.g. 'cmd.exe' or 'perl')
32			##
33	joko	1.7	## Revision 1.6 2003/03/28 06:58:06 joko
34			## new: 'run_cmd' now asynchronous! (via IPC::Run...)
35			##
36	joko	1.6	## Revision 1.5 2003/02/22 17:26:13 joko
37			## + enhanced unix compatibility fix
38			##
39	joko	1.5	## Revision 1.4 2003/02/22 17:19:36 joko
40			## + unix compatibility fix
41			##
42	joko	1.4	## Revision 1.3 2003/02/14 14:17:04 joko
43			## - shortened seperator
44			##
45	joko	1.3	## Revision 1.2 2003/02/11 05:14:28 joko
46			## + refactored code from libp.pm
47			##
48	joko	1.2	## Revision 1.1 2003/02/09 04:49:45 joko
49			## + shortcuts now refactored to this file
50			##
51	joko	1.1	## ---------------------------------------------------------------------------
52
53
54			package shortcuts;
55
56			use strict;
57			use warnings;
58
59			require Exporter;
60			our @ISA = qw( Exporter );
61			our @EXPORT_OK = qw(
62			strftime
63			now today
64			run_cmd run_cmds
65			get_chomped
66	joko	1.2	bool2status
67	joko	1.8	make_guid
68	joko	1.1	);
69
70
71			use Data::Dumper;
72	joko	1.6	use POSIX qw( strftime );
73			#use IPC::Run qw( run timeout );
74	joko	1.14	use IPC::Run qw( start pump finish timeout run timer ) ;
75	joko	1.8	use Carp;
76
77	joko	1.13	# NEW - 2003-06-23 for Linux (what about *BSD?)
78			use IPC::Session;
79	joko	1.8
80	joko	1.14	use File::Spec;
81			use Proc::Background;
82
83	joko	1.1
84			# $now_string = strftime "%a %b %e %H:%M:%S %Y", localtime;
85			# see "perldoc -f localtime"
86			sub now {
87			my $options = shift;
88			my $pattern = "%Y-%m-%d %H:%M:%S";
89			$pattern = "%Y-%m-%d_%H-%M-%S" if $options->{fs};
90			my $result = strftime($pattern, localtime);
91			return $result;
92			}
93
94			sub today {
95			return strftime("%Y-%m-%d", localtime);
96			}
97
98	joko	1.12	sub RUNNING_IN_HELL () { $^O eq 'MSWin32' }
99
100
101	joko	1.9	sub get_executable {
102			my $cmd = shift;
103			# FIXME: detect type of program and run with proper application/interpreter
104			# using IPC::Run we have to dispatch this on our own! no os-interaction or interpolation here!?
105			# => better use absolute path-names only?!
106			my $application = '';
107			if ($cmd =~ m/\w+\.pl\s./) {
108	joko	1.13	$application = get_interpreter_wrapper($cmd, 'perl');
109			#$cmd = "$application $cmd" if $application;
110			$application .= ' ';
111
112	joko	1.10	} else {
113			$application = './';
114	joko	1.9	}
115			return $application;
116			}
117
118	joko	1.13	sub get_interpreter_wrapper {
119	joko	1.9	my $cmd = shift;
120	joko	1.13	my $language = shift;
121			$language \|\|= '';
122
123			my $wrapper = '';
124
125			if ($language eq 'perl') {
126
127			if (RUNNING_IN_HELL()) {
128			# Required to adapt to IPC::Run on win32.
129	joko	1.14	#$wrapper = 'cmd.exe /C perl';
130			#$wrapper = 'start perl';
131			$wrapper = 'perl';
132			#$wrapper = 'cmd.exe /C';
133	joko	1.13	} else {
134			# NEW 2003-06-23 - needed if used with IPC::Session (at Linux)
135			# whats about Win32?
136			$wrapper = 'perl';
137			}
138
139			} else {
140			die("No wrapper for language '$language'.");
141			}
142
143			return $wrapper;
144	joko	1.9	}
145
146
147	joko	1.1	sub run_cmd {
148			my $cmd = shift;
149			my $caption = shift;
150	joko	1.6	my $options = shift;
151
152	joko	1.14	#print STDOUT "run_cmd - options: ", Dumper($options), "\n";
153	joko	1.9
154	joko	1.6	# report - header
155	joko	1.3	my $sep = "-" x 60;
156	joko	1.14	print STDOUT $sep, "\n";
157			print STDOUT " ", $cmd;
158			print STDOUT " - ", $caption if $caption;
159			print STDOUT "\n", $sep, "\n";
160	joko	1.4
161	joko	1.5	# strip name of executable from full command string
162	joko	1.14	$cmd =~ m/^(.+?)\s(.*)$/;
163	joko	1.5	my $executable = $1;
164	joko	1.14	my $executable_args = $2;
165	joko	1.5
166	joko	1.9	=pod
167	joko	1.5	# for unix: check if executable is in local directory, if so - prefix with './'
168	joko	1.4	if (!RUNNING_IN_HELL()) {
169	joko	1.5	#if ($cmd !~ m/\//) {
170			if (-e $executable) {
171	joko	1.4	}
172			}
173	joko	1.9	=cut
174
175			# new of 2003-05-07: basedir option to be prepended to command string
176			my $basedir = $options->{BASEDIR};
177			my $use_path = $options->{USE_PATH};
178
179			# for all systems: check existance of files - use basedir if given, try current directory otherwise
180			if ($basedir) {
181			-e "$basedir/$executable" or die("$basedir/$executable does not exist.");
182			$basedir .= '/';
183	joko	1.14	$cmd = "$basedir$cmd";
184	joko	1.9	} elsif ($use_path) {
185	joko	1.14	#$basedir = "";
186			$basedir = findpath($executable);
187			#print "basedir: $basedir", "\n";
188			my $abspath = File::Spec->catfile($basedir, $executable);
189			#print STDOUT "PATH: ", $abspath, "\n";
190			-e $abspath or die("$abspath does not exist.");
191			$cmd = $abspath . ' ' . $executable_args;
192	joko	1.9	} else {
193			-e $executable or die("$executable does not exist.");
194			#$basedir = ".";
195	joko	1.10	#$basedir .= './';
196	joko	1.12	$basedir = "";
197	joko	1.14	$cmd = "$basedir$cmd";
198	joko	1.9	}
199
200	joko	1.6	# V1 - backticks or qq{}
201	joko	1.1	#`$cmd`;
202	joko	1.6	#qq{$cmd};
203
204			# V2 - via 'system'
205			#system($cmd);
206
207	joko	1.14	#if (not $use_path) {
208	joko	1.10	my $application = get_executable($cmd);
209			$cmd = "$application$cmd" if $application;
210	joko	1.14	#}
211	joko	1.10
212	jonen	1.11	# V3 - using IPC (optional)
213	joko	1.6	if ($options->{async}) {
214	jonen	1.11
215	joko	1.6	#run \@cmd, \$in, \$out, \$err, timeout( 10 ) or die "cat: $?";
216	jonen	1.11	my @cmd = split(' ', $cmd);
217	joko	1.6
218
219	jonen	1.11	# V3.1 - using IPC::Run
220			#
221			# tests:
222	joko	1.13
223			if (RUNNING_IN_HELL()) {
224
225			#my $in; my $out; my $err;
226	joko	1.14	print STDOUT "run_cmd: IPC::Run: $cmd", "\n";
227
228			#print STDOUT "findpath: ", findpath('rap.pl'), "\n";
229	joko	1.13
230			# no success!
231			#start \@cmd, timeout(0) or croak("run_cmd: IPC::Run could not start '$cmd'.");
232			#
233			# success on Win32, but seems broken at 'timeout' on linux:
234	joko	1.14	#run(\@cmd, timeout(3)) or croak("run_cmd: IPC::Run could not start '$cmd'.");
235			#start(\@cmd, timer(2)) or croak("run_cmd: IPC::Run could not start '$cmd'.");
236			#start(\@cmd, \undef) or croak("run_cmd: IPC::Run could not start '$cmd'.");
237			#start \@cmd or croak("run_cmd: IPC::Run could not start '$cmd'.");
238			#start(\@cmd, timeout(1)) or croak("run_cmd: IPC::Run could not start '$cmd'.");
239	joko	1.13
240			# other tests ;)
241			#$IPC::Run::Timer::timeout = 2000;
242			#start $cmd or die("IPC::Run could not start '$cmd'.");
243
244	joko	1.14	#my $in; my $out; my $t;
245			#my $harness = start( \@cmd, \$in, \$out, $t = timer( 5 ) ) ;
246			#my $harness = start( \@cmd ) ;
247			#$harness->pump_nb();
248
249			#my $postfix = '2>&1 \|';
250			#open PIPE, "$cmd $postfix" or die("run_cmd: could not run in background via open!");
251
252			my $proc1 = Proc::Background->new(@cmd);
253			print "pid: ", $proc1->pid(), "\n";
254
255
256	joko	1.13	} else {
257
258	jonen	1.15	#print STDOUT "run_cmd: IPC::Session: $cmd", "\n";
259	joko	1.13
260			# V3.2 - using IPC::Session
261			# success on Linux AND Win32 ??
262			#
263			# set timeout:
264	jonen	1.15	# (don't really know why we needs some secconds
265	joko	1.13	# to wait for init of process !?!)
266	jonen	1.15	#my $session_timeout = 15;
267	joko	1.13	# set session name (default: cmd as string):
268	jonen	1.15	#my $session_command = $cmd;
269			#my $session_shell = "/bin/sh";
270			# create session (beware of using '->new' here!?):
271			#my $session = new IPC::Session($session_shell, $session_timeout);
272	joko	1.13
273			# send 'cmd' to session - not required since complete command is sent via constructor above
274	jonen	1.15	#$session->send($cmd);
275
276			#my $output = $session->stdout();
277			#print "WS::Admin started.\n" if $output = ' ';
278
279			# tests
280			#$session->send("echo hello");
281			#chomp(my $hello = $session->stdout());
282			#print "ok 3\n" if $hello eq "hello";
283	joko	1.13
284			# optional switch case:
285			#for ($session->stdout()) {
286	jonen	1.15	# /_bootDataBases/ && do { print "WS::Admin started.\n" };
287	joko	1.13	#}
288			# optional get error:
289			#my $err = session->stderr();
290	jonen	1.15	#print "ERR: " . Dumper($err) . "\n";
291
292			#open( *OUT, ">out.txt" ) ;
293			#open( *ERR, ">err.txt" ) ;
294			#run(\@cmd, \undef, \OUT, \ERR ) or croak("run_cmd: IPC::Run could not start '$cmd'.");
295			#my ($out, $err);
296			#my $h = start(\@cmd, \undef, \OUT, \ERR ) or croak("run_cmd: IPC::Run could not start '$cmd'.");
297			#finish $h if $err =~ /error/;
298
299			# get child pid
300			#my $kid;
301			#do { $kid=wait(); } until $kid > 0;
302			#print "Child PID: " . $kid . "n";
303
304			#finish $h;
305
306
307			# test using Proc::Background - success !!
308			my $proc = Proc::Background->new($cmd);
309			my $kid = $proc->pid();
310			print STDOUT "run_cmd: Proc::Background: $cmd, child PID $kid", "\n";
311			$proc->wait();
312			$proc->die();
313
314	joko	1.13	}
315	jonen	1.15
316
317			} elsif ($options->{detach}) {
318			print STDERR "run_cmd: system('$cmd' &).", "\n";
319			system($cmd . ' &');
320
321	joko	1.6	} else {
322	joko	1.14	print STDOUT "run_cmd: system('$cmd').", "\n";
323	joko	1.6	system($cmd);
324			}
325
326	joko	1.14	print STDOUT "run_cmd: ready.", "\n";
327	joko	1.6
328	joko	1.1	}
329
330			sub run_cmds {
331	joko	1.9	my $options = {};
332			if (ref $_[$#_] eq 'HASH') {
333			#print "YAI", "\n";
334			$options = pop @_;
335			}
336	joko	1.1	foreach (@_) {
337	joko	1.9	run_cmd($_, '', $options);
338	joko	1.1	}
339			}
340
341			sub get_chomped {
342			my $str = shift;
343			chomp($str);
344			return $str;
345	joko	1.2	}
346
347			sub bool2status {
348			my $bool = shift;
349			return ($bool ? 'ok' : 'failed');
350	joko	1.1	}
351	joko	1.4
352	joko	1.8	# create global unique identifers using Data::UUID
353			# if updating this code, please also modify Tangram::Storage::make_guid
354			sub make_guid
355			{
356			my $self = shift;
357
358			my $guid;
359
360			# try to use Data::UUID first ...
361			eval("use Data::UUID;");
362			if (!$@) {
363			my $ug = Data::UUID->new();
364			$guid = $ug->create_str();
365
366			# ... if this fails, try to fallback to Data::UUID::PurePerl instead ...
367			} else {
368			eval("use Data::UUID::PurePerl;");
369			if (!$@) {
370			$guid = Data::UUID::PurePerl::generate_id();
371			} else {
372			croak "couldn't create globally unique identifier";
373			}
374			}
375
376			return $guid;
377			}
378	joko	1.14
379			# [modified] from: http://www.mit.edu/afs/athena/contrib/watchmaker/src/pt/Configure
380			sub findpath {
381			#local($path);
382			#local($arg) = shift;
383			my $arg = shift;
384			my $path;
385			#for my $dir (split(/:/,$ENV{'PATH'})) {
386			for my $dir (File::Spec->path()) {
387			#if (-x "$dir/$arg" && -f _) {
388			#print STDOUT "scanning: ", "$dir/$arg", "\n";
389			if (-e "$dir/$arg") {
390			#$path = "$dir/$arg";
391			#$path = "$dir/";
392			$path = $dir;
393			last;
394			}
395			}
396			$path;
397			}
398	jonen	1.11
399	joko	1.1	1;
400	joko	1.12	__END__
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