Revert change #22520 (optimise away my $foo = undef and similar

[perl5.git] / wince / comp.pl

=comments

helper script to make life for PerlCE easier.

There are different modes for running this script:
  perl comp.pl --run [any-command-line-arguments]
and
  perl comp.pl --do [any-command-line-arguments]
and
  perl comp.pl --copy pc:[pc-location] ce:[ce-location]

--run executes this build of perl on CE device with arguments provided
--run=test will display a predefined messagebox that say everything is ok.

--do  Executes on local computer command that is presented by arguments
      immediately following after --do
      Most reason why you may want to execute script in this mode is that
      arguments preprocessed to replace [p] occurrences into current perl
      location. Typically it is handy to run
  perl comp.pl --do cecopy pc:..\lib\Exporter.pm ce:[p]\lib

--copy copies file to CE device
  here also [p] will be expanded to current PerlCE path, and additionally
  when --copy=compact specified then, if filename looks like perl module,
  then POD will be stripped away from that file
  modules


=cut

use strict;
use Cross;
use Config;

# edit value of $inst_root variable to reflect your desired location of
# built perl
my $inst_root = $Config{prefix};

my %opts = (
  # %known_opts enumerates allowed opts as well as specifies default and initial values
  my %known_opts = (
     'do' => '',
     'run' => '',
     'copy' => '',
  ),
  #options itself
  my %specified_opts = (
    (map {/^--([\-_\w]+)=(.*)$/} @ARGV),                            # --opt=smth
    (map {/^no-?(.*)$/i?($1=>0):($_=>1)} map {/^--([\-_\w]+)$/} @ARGV),  # --opt --no-opt --noopt
  ),
);
die "option '$_' is not recognized" for grep {!exists $known_opts{$_}} keys %specified_opts;
@ARGV = grep {!/^--/} @ARGV;

if ($opts{'do'}) {
  s/\[p\]/$inst_root/g for @ARGV;
  system(@ARGV);
}
elsif ($opts{'run'}) {
  if ($opts{'run'} eq 'test') {
    system("ceexec","$inst_root\\bin\\perl","-we","Win32::MessageBox(\$].qq(\n).join'','cc'..'dx')");
  }
  else {
    system("ceexec","$inst_root\\bin\\perl", map {/^".*"$/s?$_:"\"$_\""} @ARGV);
  }
}
elsif ($opts{'copy'}) {
  if ($opts{'copy'} eq 'compact') {
    die "todo";
  }
  s/\[p\]/$inst_root/g for @ARGV;
  if ($ARGV[0]=~/^pc:/i) {system("cedel",$ARGV[1])}
  system("cecopy",@ARGV);
}
else {
  # todo
}


=comments

  Author Vadim Konovalov.

=cut