perl/libs/shortcuts.pm

## ---------------------------------------------------------------------------
##  $Id: shortcuts.pm,v 1.7 2003/03/29 07:24:10 joko Exp $
## ---------------------------------------------------------------------------
##  $Log: shortcuts.pm,v $
##  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 ) ;
use Carp;


# $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 run_cmd {
  my $cmd = shift;
  my $caption = shift;
  my $options = shift;
  #$cmd = 'perl ' . $cmd;
  
  # report - header
  my $sep = "-" x 60;
  print $sep, "\n";
  #print "  ", $cmd, "\n";
  #print "  ", "  $caption", "\n" if $caption;
  print "  ", $cmd;
  print " - ", $caption if $caption;
  print "\n";
  print $sep, "\n";
  
  # strip name of executable from full command string
  $cmd =~ m/(.+?)\s/;
  my $executable = $1;
  
  # for unix: check if executable is in local directory, if so - prefix with './'
  if (!RUNNING_IN_HELL()) {
    #if ($cmd !~ m/\//) {
    if (-e $executable) {
      $cmd = "./$cmd";
    }
  }
  
  # V1 - backticks or qq{}
  #`$cmd`;
  #qq{$cmd};
  
  # V2 - via 'system'
  #system($cmd);

  # V3 - using IPC::Run (optional)
  if ($options->{async}) {
    # 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 (RUNNING_IN_HELL()) {
      $application = 'cmd.exe /C';
    }
    
    if ($cmd =~ m/\w+\.pl\s*.*/) {
      $application = 'perl';
    }
    
    $cmd = "$application $cmd" if $application;
    
    print "IPC::Run: $cmd", "\n";
    #run \@cmd, \$in, \$out, \$err, timeout( 10 ) or die "cat: $?";
    
    my @cmd = split(' ', $cmd);
    
    my $in; my $out; my $err;
    start \@cmd, timeout(0) or die("IPC::Run could not start '$cmd'.");
    
    #$IPC::Run::Timer::timeout = 2000;
    #start $cmd or die("IPC::Run could not start '$cmd'.");
    
  } else {
    system($cmd);
  }
  
  print "ready.", "\n";
  
}

sub run_cmds {
  foreach (@_) {
    run_cmd($_);
  }
}

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

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

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

# 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;
  }

1;
1	joko	1.1	## ---------------------------------------------------------------------------
2	joko	1.8	## $Id: shortcuts.pm,v 1.7 2003/03/29 07:24:10 joko Exp $
3	joko	1.1	## ---------------------------------------------------------------------------
4			## $Log: shortcuts.pm,v $
5	joko	1.8	## Revision 1.7 2003/03/29 07:24:10 joko
6			## enhanced 'run_cmd': now tries to execute program with appropriate application (e.g. 'cmd.exe' or 'perl')
7			##
8	joko	1.7	## Revision 1.6 2003/03/28 06:58:06 joko
9			## new: 'run_cmd' now asynchronous! (via IPC::Run...)
10			##
11	joko	1.6	## Revision 1.5 2003/02/22 17:26:13 joko
12			## + enhanced unix compatibility fix
13			##
14	joko	1.5	## Revision 1.4 2003/02/22 17:19:36 joko
15			## + unix compatibility fix
16			##
17	joko	1.4	## Revision 1.3 2003/02/14 14:17:04 joko
18			## - shortened seperator
19			##
20	joko	1.3	## Revision 1.2 2003/02/11 05:14:28 joko
21			## + refactored code from libp.pm
22			##
23	joko	1.2	## Revision 1.1 2003/02/09 04:49:45 joko
24			## + shortcuts now refactored to this file
25			##
26	joko	1.1	## ---------------------------------------------------------------------------
27
28
29			package shortcuts;
30
31			use strict;
32			use warnings;
33
34			require Exporter;
35			our @ISA = qw( Exporter );
36			our @EXPORT_OK = qw(
37			strftime
38			now today
39			run_cmd run_cmds
40			get_chomped
41	joko	1.2	bool2status
42	joko	1.8	make_guid
43	joko	1.1	);
44
45
46			use Data::Dumper;
47	joko	1.6	use POSIX qw( strftime );
48			#use IPC::Run qw( run timeout );
49			use IPC::Run qw( start pump finish timeout ) ;
50	joko	1.8	use Carp;
51
52
53	joko	1.1
54			# $now_string = strftime "%a %b %e %H:%M:%S %Y", localtime;
55			# see "perldoc -f localtime"
56			sub now {
57			my $options = shift;
58			my $pattern = "%Y-%m-%d %H:%M:%S";
59			$pattern = "%Y-%m-%d_%H-%M-%S" if $options->{fs};
60			my $result = strftime($pattern, localtime);
61			return $result;
62			}
63
64			sub today {
65			return strftime("%Y-%m-%d", localtime);
66			}
67
68			sub run_cmd {
69			my $cmd = shift;
70			my $caption = shift;
71	joko	1.6	my $options = shift;
72	joko	1.1	#$cmd = 'perl ' . $cmd;
73	joko	1.6
74			# report - header
75	joko	1.3	my $sep = "-" x 60;
76	joko	1.1	print $sep, "\n";
77	joko	1.6	#print " ", $cmd, "\n";
78			#print " ", " $caption", "\n" if $caption;
79			print " ", $cmd;
80			print " - ", $caption if $caption;
81			print "\n";
82	joko	1.1	print $sep, "\n";
83	joko	1.4
84	joko	1.5	# strip name of executable from full command string
85			$cmd =~ m/(.+?)\s/;
86			my $executable = $1;
87
88			# for unix: check if executable is in local directory, if so - prefix with './'
89	joko	1.4	if (!RUNNING_IN_HELL()) {
90	joko	1.5	#if ($cmd !~ m/\//) {
91			if (-e $executable) {
92	joko	1.4	$cmd = "./$cmd";
93			}
94			}
95
96	joko	1.6	# V1 - backticks or qq{}
97	joko	1.1	#`$cmd`;
98	joko	1.6	#qq{$cmd};
99
100			# V2 - via 'system'
101			#system($cmd);
102
103			# V3 - using IPC::Run (optional)
104			if ($options->{async}) {
105			# FIXME: detect type of program and run with proper application/interpreter
106			# using IPC::Run we have to dispatch this on our own! no os-interaction or interpolation here!
107			# => better use absolute path-names only?!
108	joko	1.7	my $application = '';
109			if (RUNNING_IN_HELL()) {
110			$application = 'cmd.exe /C';
111			}
112
113			if ($cmd =~ m/\w+\.pl\s./) {
114			$application = 'perl';
115			}
116
117			$cmd = "$application $cmd" if $application;
118
119	joko	1.6	print "IPC::Run: $cmd", "\n";
120			#run \@cmd, \$in, \$out, \$err, timeout( 10 ) or die "cat: $?";
121
122			my @cmd = split(' ', $cmd);
123
124			my $in; my $out; my $err;
125			start \@cmd, timeout(0) or die("IPC::Run could not start '$cmd'.");
126
127			#$IPC::Run::Timer::timeout = 2000;
128			#start $cmd or die("IPC::Run could not start '$cmd'.");
129
130			} else {
131			system($cmd);
132			}
133
134	joko	1.1	print "ready.", "\n";
135	joko	1.6
136	joko	1.1	}
137
138			sub run_cmds {
139			foreach (@_) {
140			run_cmd($_);
141			}
142			}
143
144			sub get_chomped {
145			my $str = shift;
146			chomp($str);
147			return $str;
148	joko	1.2	}
149
150			sub bool2status {
151			my $bool = shift;
152			return ($bool ? 'ok' : 'failed');
153	joko	1.1	}
154	joko	1.4
155			sub RUNNING_IN_HELL () { $^O eq 'MSWin32' }
156
157	joko	1.8	# create global unique identifers using Data::UUID
158			# if updating this code, please also modify Tangram::Storage::make_guid
159			sub make_guid
160			{
161			my $self = shift;
162
163			my $guid;
164
165			# try to use Data::UUID first ...
166			eval("use Data::UUID;");
167			if (!$@) {
168			my $ug = Data::UUID->new();
169			$guid = $ug->create_str();
170
171			# ... if this fails, try to fallback to Data::UUID::PurePerl instead ...
172			} else {
173			eval("use Data::UUID::PurePerl;");
174			if (!$@) {
175			$guid = Data::UUID::PurePerl::generate_id();
176			} else {
177			croak "couldn't create globally unique identifier";
178			}
179			}
180
181			return $guid;
182			}
183	joko	1.1
184			1;
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