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package ExtUtils::Command;
use 5.00503;
use strict;
use Carp;
use File::Copy;
use File::Compare;
use File::Basename;
use File::Path qw(rmtree);
require Exporter;
use vars qw(@ISA @EXPORT $VERSION);
@ISA = qw(Exporter);
@EXPORT = qw(cp rm_f rm_rf mv cat eqtime mkpath touch test_f);
$VERSION = '1.05';
my $Is_VMS = $^O eq 'VMS';
=head1 NAME
ExtUtils::Command - utilities to replace common UNIX commands in Makefiles etc.
=head1 SYNOPSIS
perl -MExtUtils::Command -e cat files... > destination
perl -MExtUtils::Command -e mv source... destination
perl -MExtUtils::Command -e cp source... destination
perl -MExtUtils::Command -e touch files...
perl -MExtUtils::Command -e rm_f files...
perl -MExtUtils::Command -e rm_rf directories...
perl -MExtUtils::Command -e mkpath directories...
perl -MExtUtils::Command -e eqtime source destination
perl -MExtUtils::Command -e test_f file
perl -MExtUtils::Command=chmod -e chmod mode files...
=head1 DESCRIPTION
The module is used to replace common UNIX commands. In all cases the
functions work from @ARGV rather than taking arguments. This makes
them easier to deal with in Makefiles.
perl -MExtUtils::Command -e some_command some files to work on
I<NOT>
perl -MExtUtils::Command -e 'some_command qw(some files to work on)'
Filenames with * and ? will be glob expanded.
=over 4
=cut
# VMS uses % instead of ? to mean "one character"
my $wild_regex = $Is_VMS ? '*%' : '*?';
sub expand_wildcards
{
@ARGV = map(/[$wild_regex]/o ? glob($_) : $_,@ARGV);
}
=item cat
Concatenates all files mentioned on command line to STDOUT.
=cut
sub cat ()
{
expand_wildcards();
print while (<>);
}
=item eqtime src dst
Sets modified time of dst to that of src
=cut
sub eqtime
{
my ($src,$dst) = @ARGV;
local @ARGV = ($dst); touch(); # in case $dst doesn't exist
utime((stat($src))[8,9],$dst);
}
=item rm_rf files....
Removes directories - recursively (even if readonly)
=cut
sub rm_rf
{
expand_wildcards();
rmtree([grep -e $_,@ARGV],0,0);
}
=item rm_f files....
Removes files (even if readonly)
=cut
sub rm_f
{
expand_wildcards();
foreach (@ARGV)
{
next unless -f $_;
next if unlink($_);
chmod(0777,$_);
next if unlink($_);
carp "Cannot delete $_:$!";
}
}
=item touch files ...
Makes files exist, with current timestamp
=cut
sub touch {
my $t = time;
expand_wildcards();
foreach my $file (@ARGV) {
open(FILE,">>$file") || die "Cannot write $file:$!";
close(FILE);
utime($t,$t,$file);
}
}
=item mv source... destination
Moves source to destination.
Multiple sources are allowed if destination is an existing directory.
=cut
sub mv {
my $dst = pop(@ARGV);
expand_wildcards();
croak("Too many arguments") if (@ARGV > 1 && ! -d $dst);
foreach my $src (@ARGV) {
move($src,$dst);
}
}
=item cp source... destination
Copies source to destination.
Multiple sources are allowed if destination is an existing directory.
=cut
sub cp {
my $dst = pop(@ARGV);
expand_wildcards();
croak("Too many arguments") if (@ARGV > 1 && ! -d $dst);
foreach my $src (@ARGV) {
copy($src,$dst);
}
}
=item chmod mode files...
Sets UNIX like permissions 'mode' on all the files. e.g. 0666
=cut
sub chmod {
my $mode = shift(@ARGV);
expand_wildcards();
chmod(oct $mode,@ARGV) || die "Cannot chmod ".join(' ',$mode,@ARGV).":$!";
}
=item mkpath directory...
Creates directory, including any parent directories.
=cut
sub mkpath
{
expand_wildcards();
File::Path::mkpath([@ARGV],0,0777);
}
=item test_f file
Tests if a file exists
=cut
sub test_f
{
exit !-f shift(@ARGV);
}
1;
__END__
=back
=head1 BUGS
Should probably be Auto/Self loaded.
=head1 SEE ALSO
ExtUtils::MakeMaker, ExtUtils::MM_Unix, ExtUtils::MM_Win32
=head1 AUTHOR
Nick Ing-Simmons <F<nick@ni-s.u-net.com>>.
=cut
|
