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#!/usr/local/bin/perl -w
use strict;
use Tk;
use Tk::LabEntry;
use Tk::ErrorDialog;
use File::Find;
use ExtUtils::Manifest "/mani/";
my $containing = '/perl\b';
my $matching = '\.p[ml]$';
my $mode = 'MANIFEST';
my %filefunc = ( MANIFEST => \&manifiles,
Dummy => \&dummyfiles,
'find' => \&findfiles );
sub accept_file
{
my ($file) = @_;
return 0 unless (-w $file);
my $accept = $matching && ($file =~ /$matching/);
if (!$accept && $containing)
{
open(FILE,"<$file") || die "Cannot open $file:$!";
my $line = <FILE>;
close(FILE);
$accept = $line && $line =~ m#$containing#;
}
return $accept;
}
sub findfiles
{
my ($dir) = @_;
my @files = ();
die "Not a directory $dir\n", unless (-d $dir);
find(sub {
$File::Find::prune = 0;
if (-T $_ && !/%$/)
{
push(@files,"$File::Find::dir/$_") if (accept_file($_));
}
elsif (-d $_)
{
$File::Find::prune = 1 if ($_ eq 'blib');
}},$dir);
return @files;
}
sub dummyfiles
{
my ($dir) = @_;
my @files = ();
my $file;
foreach $file (map("$dir/$_",'aaaa'...'aaaz'))
{
push(@files,$file);
}
return @files;
}
sub manifiles
{
my ($dir) = @_;
my @files = ();
if (-d $dir && -f "$dir/MANIFEST")
{
my $list = maniread("$dir/MANIFEST");
my $file;
foreach $file (map("$dir/$_",keys %$list))
{
push(@files,$file) if (accept_file($file));
}
}
else
{
die "No $dir/MANIFEST\n";
}
return @files;
}
sub undo
{
my $file;
foreach $file (@_)
{
if (-f "$file.bak")
{
rename("$file.bak",$file) || die "Cannot rename $file $file.undone:$!";
}
else
{
warn "No $file.bak\n";
}
}
}
sub apply
{
my $expr = shift;
if (@_)
{
local $^I = ".bak";
my $sub = eval "sub { $expr }";
die "$@" if ($@);
my @undo = ();
@ARGV = @_;
my $changes = 0;
while (<>)
{
my $line = $_;
if (&$sub)
{
print STDERR "$ARGV:$.:$_";
$changes++ if ($line ne $_);
}
print;
if (eof)
{
if ($changes)
{
print STDERR "$changes in $ARGV due to $expr\n";
$changes = 0;
}
else
{
print STDERR "No changes in $ARGV due to $expr\n";
push(@undo,$ARGV);
}
}
}
undo(@undo) if (@undo);
}
}
sub populate
{
my ($lb,$dir) = @_;
$lb->delete(0,'end');
$lb->Busy;
$lb->insert('end',sort &{$filefunc{$mode}}($dir));
$lb->Unbusy;
}
my $mw = MainWindow->new;
my $ft = $mw->Frame->pack(-fill => 'x');
my $expr = "";
my $dir = `pwd`;
chomp($dir);
my $ed = $mw->LabEntry(-label => 'Directory: ', -textvariable => \$dir, -width => 60)->pack(-fill => 'x');
$ed->bind('<Return>', sub { populate(shift,$dir)});
$mw->LabEntry(-label => 'Matching: ', -textvariable => \$matching, -width => 20)->pack(-fill => 'x');
$mw->LabEntry(-label => 'Containing: ', -textvariable => \$containing, -width => 20)->pack(-fill => 'x');
my $lb = $mw->Scrolled('Listbox')->pack(-fill => 'both', -expand => 1);
my $ee = $mw->LabEntry(-label => 'Expression: ',-textvariable => \$expr, -width => 60)->pack(-fill => 'x');
$ft->Button(-text => 'Quit', -command => [destroy => $mw])->pack(-side => 'left');
$ft->Button(-text => 'Files', -command => sub { populate($lb,$dir)})->pack(-side => 'left');
$ft->Button(-text => 'Apply', -command => sub { apply($expr,$lb->get(0,'end')) })->pack(-side => 'left');
$ft->Button(-text => 'Undo', -command => sub { undo($lb->get(0,'end')) })->pack(-side => 'left');
$ft->Optionmenu(-options => [ keys %filefunc ], -textvariable => \$mode )->pack(-side => 'right');
MainLoop;
|
