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revision 1.12 by joko, Mon Jun 23 19:43:19 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  ##  Revision 1.12  2003/06/23 19:43:19  joko
16  ##  minor cleanup  ##  minor cleanup
17  ##  now using IPC::Session::NoShell  ##  now using IPC::Session::NoShell
# Line 64  our @EXPORT_OK = qw( Line 74  our @EXPORT_OK = qw(
74  use Data::Dumper;  use Data::Dumper;
75  use POSIX qw( strftime );  use POSIX qw( strftime );
76  #use IPC::Run qw( run timeout );  #use IPC::Run qw( run timeout );
77  use IPC::Run qw( start pump finish timeout run ) ;  use IPC::Run qw( start pump finish timeout run timer ) ;
78  use Carp;  use Carp;
79    
80  # NEW - 2003-06-23  # NEW - 2003-06-23 for Linux (what about *BSD?)
81  use IPC::Session::NoShell;  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;
# Line 95  sub get_executable { Line 108  sub get_executable {
108    # => better use absolute path-names only?!    # => better use absolute path-names only?!
109    my $application = '';    my $application = '';
110    if ($cmd =~ m/\w+\.pl\s*.*/) {    if ($cmd =~ m/\w+\.pl\s*.*/) {
111      # NEW 2003-06-23 - needed if used with IPC::Session (at Linux)        $application = get_interpreter_wrapper($cmd, 'perl');
112      #  whats about Win32?        #$cmd = "$application $cmd" if $application;
113      $application = 'perl ';        $application .= ' ';
114        
115    } else {    } else {
116      $application = './';      $application = './';
117    }    }
118    return $application;    return $application;
119  }  }
120    
121  sub get_executable_wrapper {  sub get_interpreter_wrapper {
122    my $cmd = shift;    my $cmd = shift;
123    my $application = '';    my $language = shift;
124    # Required to adapt to IPC::Run on win32.    $language ||= '';
125    #if (RUNNING_IN_HELL()) {  
126      #$application = 'cmd.exe /C';    my $wrapper = '';
127    #}  
128    return $application;    if ($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    
# Line 120  sub run_cmd { Line 152  sub run_cmd {
152    my $caption = shift;    my $caption = shift;
153    my $options = shift;    my $options = shift;
154        
155    #print Dumper($options);    #print STDOUT "run_cmd - options: ", Dumper($options), "\n";
156        
157    # report - header    # report - header
158    my $sep = "-" x 60;    my $sep = "-" x 60;
159    print STDERR $sep, "\n";    print STDOUT $sep, "\n";
160    print STDERR "  ", $cmd;    print STDOUT "  ", $cmd;
161    print STDERR " - ", $caption if $caption;    print STDOUT " - ", $caption if $caption;
162    print STDERR "\n", $sep, "\n";    print STDOUT "\n", $sep, "\n";
163        
164    # strip name of executable from full command string    # strip name of executable from full command string
165    $cmd =~ m/(.+?)\s/;    $cmd =~ m/^(.+?)\s(.*)$/;
166    my $executable = $1;    my $executable = $1;
167      my $executable_args = $2;
168        
169  =pod  =pod
170    # for unix: check if executable is in local directory, if so - prefix with './'    # for unix: check if executable is in local directory, if so - prefix with './'
# Line 150  sub run_cmd { Line 183  sub run_cmd {
183    if ($basedir) {    if ($basedir) {
184      -e "$basedir/$executable" or die("$basedir/$executable does not exist.");      -e "$basedir/$executable" or die("$basedir/$executable does not exist.");
185      $basedir .= '/';      $basedir .= '/';
186        $cmd = "$basedir$cmd";
187    } elsif ($use_path) {    } elsif ($use_path) {
188      $basedir = "";      #$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 {    } else {
196      -e $executable or die("$executable does not exist.");      -e $executable or die("$executable does not exist.");
197      #$basedir = ".";      #$basedir = ".";
198      #$basedir .= './';      #$basedir .= './';
199      $basedir = "";      $basedir = "";
200        $cmd = "$basedir$cmd";
201    }    }
   $cmd = "$basedir$cmd";  
202    
203    # V1 - backticks or qq{}    # V1 - backticks or qq{}
204    #`$cmd`;    #`$cmd`;
# Line 167  sub run_cmd { Line 207  sub run_cmd {
207    # V2 - via 'system'    # V2 - via 'system'
208    #system($cmd);    #system($cmd);
209    
210    if (not $use_path) {    #if (not $use_path) {
211      my $application = get_executable($cmd);      my $application = get_executable($cmd);
212      $cmd = "$application$cmd" if $application;      $cmd = "$application$cmd" if $application;
213    }    #}
214    
215    # V3 - using IPC (optional)    # V3 - using IPC (optional)
216    if ($options->{async}) {    if ($options->{async}) {
217    
     #$cmd = "$application $cmd" if $application;  
     #my $application = get_executable_wrapper($cmd);  
       
     print STDERR "run_cmd: IPC::Session::NoShell: $cmd", "\n";  
218      #run \@cmd, \$in, \$out, \$err, timeout( 10 ) or die "cat: $?";      #run \@cmd, \$in, \$out, \$err, timeout( 10 ) or die "cat: $?";
           
219      my @cmd = split(' ', $cmd);      my @cmd = split(' ', $cmd);
220            
221            
222      # V3.1 - using IPC::Run      # V3.1 - using IPC::Run
223      #      #
224      # tests:      # tests:
     #my $in; my $out; my $err;  
     #print "IPC::Run: $cmd", "\n";  
     #start \@cmd, timeout(0) or croak("run_cmd: IPC::Run could not start '$cmd'.");  
     #  
     # success on Win32, but seems broken at 'timeout' on linux:  
     #run(\@cmd, timeout(2)) 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'.");  
   
   
     # V3.2 - using IPC::Session  
     #  success on Linux AND Win32 ??  
     #  
     # set timeout:  
     #  (don't really know why we needs 2 secconds  
     #   to wait for init of process !?!)  
     my $session_timeout = 2;  
     # set session name (default: cmd as string):  
     my $session_command = $cmd;  
     # create session:  
     my $session = new IPC::Session::NoShell($session_command, $session_timeout);  
225            
226      # send 'cmd' to session - not required since complete command is sent via constructor above      if (RUNNING_IN_HELL()) {
     #$session->send(\@cmd);  
227            
228      # optional switch case:        #my $in; my $out; my $err;
229      #for ($session->stdout()) {        print STDOUT "run_cmd: IPC::Run: $cmd", "\n";
230      #}        
231      # optional get error:        #print STDOUT "findpath: ", findpath('rap.pl'), "\n";
232      #my $err = session->stderr();        
233          # no success!
234          #start \@cmd, timeout(0) or croak("run_cmd: IPC::Run could not start '$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 {    } else {
325      print STDERR "run_cmd: system('$cmd').", "\n";      print STDOUT "run_cmd: system('$cmd').", "\n";
326      system($cmd);      system($cmd);
327    }    }
328        
329    print STDERR "run_cmd: ready.", "\n";    print STDOUT "run_cmd: ready.", "\n";
330        
331  }  }
332    
# Line 279  sub make_guid Line 379  sub make_guid
379      return $guid;      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__  __END__
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