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#!/usr/bin/perl -w
eval 'exec /usr/bin/perl -w -S $0 ${1+"$@"}'
if 0; # not running under some shell
use strict;
use File::Find::Rule;
use File::Spec::Functions qw(catdir);
# bootstrap extensions
for (@INC) {
my $dir = catdir($_, qw( File Find Rule ) );
next unless -d $dir;
my @pm = find( name => '*.pm', maxdepth => 1,
exec => sub { (my $name = $_) =~ s/\.pm$//;
eval "require File::Find::Rule::$name"; },
in => $dir );
}
# what directories are we searching in?
my @where;
while (@ARGV) {
local $_ = shift @ARGV;
if (/^-/) {
unshift @ARGV, $_;
last;
}
push @where, $_;
}
# parse arguments, build a rule object
my $rule = new File::Find::Rule;
while (@ARGV) {
my $clause = shift @ARGV;
unless ( $clause =~ s/^-// && $rule->can( $clause ) ) {
# not a known rule - complain about this
die "unknown option '$clause'\n"
}
# it was the last switch
unless (@ARGV) {
$rule->$clause();
next;
}
# consume the parameters
my $param = shift @ARGV;
if ($param =~ /^-/) {
# it's the next switch - put it back, and add one with no params
unshift @ARGV, $param;
$rule->$clause();
next;
}
if ($param eq '(') {
# multiple values - just look for the closing parenthesis
my @p;
while (@ARGV) {
my $val = shift @ARGV;
last if $val eq ')';
push @p, $val;
}
$rule->$clause( @p );
next;
}
# a single argument
$rule->$clause( $param );
}
# add a print rule so things happen faster
$rule->exec( sub { print "$_[2]\n"; return; } );
# profit
$rule->in( @where ? @where : '.' );
exit 0;
__END__
=head1 NAME
findrule - command line wrapper to File::Find::Rule
=head1 USAGE
findrule [path...] [expression]
=head1 DESCRIPTION
C<findrule> mostly borrows the interface from GNU find(1) to provide a
command-line interface onto the File::Find::Rule heirarchy of modules.
The syntax for expressions is the rule name, preceded by a dash,
followed by an optional argument. If the argument is an opening
parenthesis it is taken as a list of arguments, terminated by a
closing parenthesis.
Some examples:
find -file -name ( foo bar )
files named C<foo> or C<bar>, below the current directory.
find -file -name foo -bar
files named C<foo>, that have pubs (for this is what our ficticious
C<bar> clause specifies), below the current directory.
find -file -name ( -bar )
files named C<-bar>, below the current directory. In this case if
we'd have omitted the parenthesis it would have parsed as a call to
name with no arguments, followed by a call to -bar.
=head2 Supported switches
I'm very slack. Please consult the File::Find::Rule manpage for now,
and prepend - to the commands that you want.
=head2 Extra bonus switches
findrule automatically loads all of your installed File::Find::Rule::*
extension modules, so check the documentation to see what those would be.
=head1 AUTHOR
Richard Clamp <richardc@unixbeard.net> from a suggestion by Tatsuhiko Miyagawa
=head1 COPYRIGHT
Copyright (C) 2002 Richard Clamp. All Rights Reserved.
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
=head1 SEE ALSO
L<File::Find::Rule>
=cut