/[cvs]/nfo/perl/libs/shortcuts.pm
ViewVC logotype

Diff of /nfo/perl/libs/shortcuts.pm

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 1.4 by joko, Sat Feb 22 17:19:36 2003 UTC revision 1.15 by jonen, Tue Jun 24 20:21:12 2003 UTC
# Line 2  Line 2 
2  ##  $Id$  ##  $Id$
3  ## ---------------------------------------------------------------------------  ## ---------------------------------------------------------------------------
4  ##  $Log$  ##  $Log$
5    ##  Revision 1.15  2003/06/24 20:21:12  jonen
6    ##  + changed linux part of run_cmd to use Proc::Background instead of IPC::...
7    ##
8    ##  Revision 1.14  2003/06/24 20:13:18  joko
9    ##  + sub findpatch
10    ##  + now using findpatch and Proc::Background for win32/perl
11    ##
12    ##  Revision 1.13  2003/06/23 20:58:31  joko
13    ##  restructured, hopefully makes Linux and Windows (and *BSD) more compatible...  what about IPC::Cmd???
14    ##
15    ##  Revision 1.12  2003/06/23 19:43:19  joko
16    ##  minor cleanup
17    ##  now using IPC::Session::NoShell
18    ##
19    ##  Revision 1.11  2003/06/23 17:41:50  jonen
20    ##  + NEW - used IPC::Session instead of IPC::Run to get better results at linux
21    ##
22    ##  Revision 1.10  2003/06/23 15:59:16  joko
23    ##  major/minor fixes?
24    ##
25    ##  Revision 1.9  2003/05/13 05:36:24  joko
26    ##  heavy modifications to run_cmd
27    ##  + sub get_executable
28    ##  + sub get_executable_wrapper
29    ##
30    ##  Revision 1.8  2003/04/04 17:31:59  joko
31    ##  + sub make_guid
32    ##
33    ##  Revision 1.7  2003/03/29 07:24:10  joko
34    ##  enhanced 'run_cmd': now tries to execute program with appropriate application (e.g. 'cmd.exe' or 'perl')
35    ##
36    ##  Revision 1.6  2003/03/28 06:58:06  joko
37    ##  new: 'run_cmd' now asynchronous! (via IPC::Run...)
38    ##
39    ##  Revision 1.5  2003/02/22 17:26:13  joko
40    ##  + enhanced unix compatibility fix
41    ##
42  ##  Revision 1.4  2003/02/22 17:19:36  joko  ##  Revision 1.4  2003/02/22 17:19:36  joko
43  ##  + unix compatibility fix  ##  + unix compatibility fix
44  ##  ##
# Line 30  our @EXPORT_OK = qw( Line 67  our @EXPORT_OK = qw(
67    run_cmd run_cmds    run_cmd run_cmds
68    get_chomped    get_chomped
69    bool2status    bool2status
70      make_guid
71  );  );
72    
73    
 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -   main  
   
74  use Data::Dumper;  use Data::Dumper;
75  use POSIX qw(strftime);  use POSIX qw( strftime );
76    #use IPC::Run qw( run timeout );
77    use IPC::Run qw( start pump finish timeout run timer ) ;
78    use Carp;
79    
80    # NEW - 2003-06-23 for Linux (what about *BSD?)
81    use IPC::Session;
82    
83    use File::Spec;
84    use Proc::Background;
85    
86    
87  # $now_string = strftime "%a %b %e %H:%M:%S %Y", localtime;  # $now_string = strftime "%a %b %e %H:%M:%S %Y", localtime;
88  # see "perldoc -f localtime"  # see "perldoc -f localtime"
   
89  sub now {  sub now {
90    my $options = shift;    my $options = shift;
91    my $pattern = "%Y-%m-%d %H:%M:%S";    my $pattern = "%Y-%m-%d %H:%M:%S";
# Line 53  sub today { Line 98  sub today {
98    return strftime("%Y-%m-%d", localtime);    return strftime("%Y-%m-%d", localtime);
99  }  }
100    
101    sub RUNNING_IN_HELL () { $^O eq 'MSWin32' }
102    
103    
104    sub get_executable {
105      my $cmd = shift;
106      # FIXME: detect type of program and run with proper application/interpreter
107      # using IPC::Run we have to dispatch this on our own! *no* os-interaction or interpolation here!?
108      # => better use absolute path-names only?!
109      my $application = '';
110      if ($cmd =~ m/\w+\.pl\s*.*/) {
111          $application = get_interpreter_wrapper($cmd, 'perl');
112          #$cmd = "$application $cmd" if $application;
113          $application .= ' ';
114        
115      } else {
116        $application = './';
117      }
118      return $application;
119    }
120    
121    sub get_interpreter_wrapper {
122      my $cmd = shift;
123      my $language = shift;
124      $language ||= '';
125    
126      my $wrapper = '';
127    
128      if ($language eq 'perl') {
129      
130        if (RUNNING_IN_HELL()) {
131          # Required to adapt to IPC::Run on win32.
132          #$wrapper = 'cmd.exe /C perl';
133          #$wrapper = 'start perl';
134          $wrapper = 'perl';
135          #$wrapper = 'cmd.exe /C';
136        } else {
137          # NEW 2003-06-23 - needed if used with IPC::Session (at Linux)
138          #  whats about Win32?
139          $wrapper = 'perl';
140        }
141        
142      } else {
143        die("No wrapper for language '$language'.");
144      }
145      
146      return $wrapper;
147    }
148    
149    
150  sub run_cmd {  sub run_cmd {
151    my $cmd = shift;    my $cmd = shift;
152    my $caption = shift;    my $caption = shift;
153    #$cmd = 'perl ' . $cmd;    my $options = shift;
154      
155      #print STDOUT "run_cmd - options: ", Dumper($options), "\n";
156      
157      # report - header
158    my $sep = "-" x 60;    my $sep = "-" x 60;
159    print $sep, "\n";    print STDOUT $sep, "\n";
160    print "  ", $cmd, "\n";    print STDOUT "  ", $cmd;
161    print "  ", $caption, "\n" if $caption;    print STDOUT " - ", $caption if $caption;
162    print $sep, "\n";    print STDOUT "\n", $sep, "\n";
163      
164      # strip name of executable from full command string
165      $cmd =~ m/^(.+?)\s(.*)$/;
166      my $executable = $1;
167      my $executable_args = $2;
168        
169    # fix for unix: prefix command with './' if no pathname (relative or absolute) included  =pod
170      # for unix: check if executable is in local directory, if so - prefix with './'
171    if (!RUNNING_IN_HELL()) {    if (!RUNNING_IN_HELL()) {
172      if ($cmd !~ m/\//) {      #if ($cmd !~ m/\//) {
173        $cmd = "./$cmd";      if (-e $executable) {
174      }      }
175    }    }
176      =cut
177    system($cmd);  
178      # new of 2003-05-07: basedir option to be prepended to command string
179      my $basedir = $options->{BASEDIR};
180      my $use_path = $options->{USE_PATH};
181    
182      # for all systems: check existance of files - use basedir if given, try current directory otherwise
183      if ($basedir) {
184        -e "$basedir/$executable" or die("$basedir/$executable does not exist.");
185        $basedir .= '/';
186        $cmd = "$basedir$cmd";
187      } elsif ($use_path) {
188        #$basedir = "";
189        $basedir = findpath($executable);
190        #print "basedir: $basedir", "\n";
191        my $abspath = File::Spec->catfile($basedir, $executable);
192        #print STDOUT "PATH: ", $abspath, "\n";
193        -e $abspath or die("$abspath does not exist.");
194        $cmd = $abspath . ' ' . $executable_args;
195      } else {
196        -e $executable or die("$executable does not exist.");
197        #$basedir = ".";
198        #$basedir .= './';
199        $basedir = "";
200        $cmd = "$basedir$cmd";
201      }
202    
203      # V1 - backticks or qq{}
204    #`$cmd`;    #`$cmd`;
205    print "ready.", "\n";    #qq{$cmd};
206      
207      # V2 - via 'system'
208      #system($cmd);
209    
210      #if (not $use_path) {
211        my $application = get_executable($cmd);
212        $cmd = "$application$cmd" if $application;
213      #}
214    
215      # V3 - using IPC (optional)
216      if ($options->{async}) {
217    
218        #run \@cmd, \$in, \$out, \$err, timeout( 10 ) or die "cat: $?";
219        my @cmd = split(' ', $cmd);
220        
221        
222        # V3.1 - using IPC::Run
223        #
224        # tests:
225        
226        if (RUNNING_IN_HELL()) {
227        
228          #my $in; my $out; my $err;
229          print STDOUT "run_cmd: IPC::Run: $cmd", "\n";
230          
231          #print STDOUT "findpath: ", findpath('rap.pl'), "\n";
232          
233          # no success!
234          #start \@cmd, timeout(0) or croak("run_cmd: IPC::Run could not start '$cmd'.");
235          #
236          # success on Win32, but seems broken at 'timeout' on linux:
237          #run(\@cmd, timeout(3)) or croak("run_cmd: IPC::Run could not start '$cmd'.");
238          #start(\@cmd, timer(2)) or croak("run_cmd: IPC::Run could not start '$cmd'.");
239          #start(\@cmd, \undef) or croak("run_cmd: IPC::Run could not start '$cmd'.");
240          #start \@cmd or croak("run_cmd: IPC::Run could not start '$cmd'.");
241          #start(\@cmd, timeout(1)) or croak("run_cmd: IPC::Run could not start '$cmd'.");      
242              
243          # other tests ;)
244          #$IPC::Run::Timer::timeout = 2000;
245          #start $cmd or die("IPC::Run could not start '$cmd'.");
246          
247          #my $in; my $out; my $t;
248          #my $harness = start( \@cmd, \$in, \$out, $t = timer( 5 ) ) ;
249          #my $harness = start( \@cmd ) ;
250          #$harness->pump_nb();
251          
252          #my $postfix = '2>&1 |';
253          #open PIPE, "$cmd $postfix" or die("run_cmd: could not run in background via open!");
254          
255          my $proc1 = Proc::Background->new(@cmd);
256          print "pid: ", $proc1->pid(), "\n";
257    
258          
259        } else {
260    
261          #print STDOUT "run_cmd: IPC::Session: $cmd", "\n";
262    
263          # V3.2 - using IPC::Session
264          #  success on Linux AND Win32 ??
265          #
266          # set timeout:
267          #  (don't really know why we needs some secconds
268          #   to wait for init of process !?!)
269          #my $session_timeout = 15;
270          # set session name (default: cmd as string):
271          #my $session_command = $cmd;
272          #my $session_shell = "/bin/sh";
273          # create session (beware of using '->new' here!?):
274          #my $session = new IPC::Session($session_shell, $session_timeout);
275          
276          # send 'cmd' to session - not required since complete command is sent via constructor above
277          #$session->send($cmd);
278    
279          #my $output = $session->stdout();
280          #print "WS::Admin started.\n" if $output = ' ';
281    
282          # tests
283          #$session->send("echo hello");
284          #chomp(my $hello = $session->stdout());      
285          #print "ok 3\n" if $hello eq "hello";
286          
287          # optional switch case:
288          #for ($session->stdout()) {
289          #  /_bootDataBases/ && do { print "WS::Admin started.\n" };
290          #}
291          # optional get error:
292          #my $err = session->stderr();
293          #print "ERR: " . Dumper($err) . "\n";
294    
295          #open( *OUT, ">out.txt" ) ;
296          #open( *ERR, ">err.txt" ) ;
297          #run(\@cmd, \undef,  \*OUT, \*ERR  ) or croak("run_cmd: IPC::Run could not start '$cmd'.");
298          #my ($out, $err);
299          #my $h = start(\@cmd, \undef,  \*OUT, \*ERR  ) or croak("run_cmd: IPC::Run could not start '$cmd'.");
300          #finish $h if $err =~ /error/;
301          
302          # get child pid
303          #my $kid;
304          #do { $kid=wait(); } until $kid > 0;
305          #print "Child PID: " . $kid . "n";
306    
307          #finish $h;
308    
309          
310          # test using Proc::Background - success !!
311          my $proc = Proc::Background->new($cmd);
312          my $kid = $proc->pid();
313          print STDOUT "run_cmd: Proc::Background: $cmd, child PID $kid", "\n";
314          $proc->wait();
315          $proc->die();
316    
317        }
318    
319    
320      } elsif ($options->{detach}) {
321        print STDERR "run_cmd: system('$cmd' &).", "\n";
322        system($cmd . ' &');    
323    
324      } else {
325        print STDOUT "run_cmd: system('$cmd').", "\n";
326        system($cmd);
327      }
328      
329      print STDOUT "run_cmd: ready.", "\n";
330      
331  }  }
332    
333  sub run_cmds {  sub run_cmds {
334      my $options = {};
335      if (ref $_[$#_] eq 'HASH') {
336        #print "YAI", "\n";
337        $options = pop @_;
338      }
339    foreach (@_) {    foreach (@_) {
340      run_cmd($_);      run_cmd($_, '', $options);
341    }    }
342  }  }
343    
# Line 92  sub bool2status { Line 352  sub bool2status {
352    return ($bool ? 'ok' : 'failed');    return ($bool ? 'ok' : 'failed');
353  }  }
354    
355  sub RUNNING_IN_HELL () { $^O eq 'MSWin32' }  # create global unique identifers using Data::UUID
356    # if updating this code, please also modify Tangram::Storage::make_guid
357    sub make_guid
358      {
359        my $self = shift;
360    
361        my $guid;
362    
363        # try to use Data::UUID first ...
364        eval("use Data::UUID;");
365        if (!$@) {
366          my $ug = Data::UUID->new();
367          $guid = $ug->create_str();
368          
369        # ... if this fails, try to fallback to Data::UUID::PurePerl instead ...
370        } else {
371          eval("use Data::UUID::PurePerl;");
372          if (!$@) {
373            $guid = Data::UUID::PurePerl::generate_id();
374          } else {
375            croak "couldn't create globally unique identifier";
376          }
377        }
378        
379        return $guid;
380      }
381    
382    # [modified] from: http://www.mit.edu/afs/athena/contrib/watchmaker/src/pt/Configure
383    sub findpath {
384        #local($path);
385        #local($arg) = shift;
386        my $arg = shift;
387        my $path;
388        #for my $dir (split(/:/,$ENV{'PATH'})) {
389        for my $dir (File::Spec->path()) {
390            #if (-x "$dir/$arg" && -f _) {
391            #print STDOUT "scanning: ", "$dir/$arg", "\n";
392            if (-e "$dir/$arg") {
393                #$path = "$dir/$arg";
394                #$path = "$dir/";
395                $path = $dir;
396                last;
397            }
398        }
399        $path;
400    }
401    
402  1;  1;
403    __END__

Legend:
Removed from v.1.4  
changed lines
  Added in v.1.15

MailToCvsAdmin">MailToCvsAdmin
ViewVC Help
Powered by ViewVC 1.1.26 RSS 2.0 feed