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