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#!/usr/bin/perl
eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
if 0; # ^ Run only under a shell
#!/usr/bin/perl -w
BEGIN { pop @INC if $INC[-1] eq '.' }
use strict;
use IO::File;
use ExtUtils::Packlist;
use ExtUtils::Installed;
use vars qw($Inst @Modules);
=head1 NAME
instmodsh - A shell to examine installed modules
=head1 SYNOPSIS
instmodsh
=head1 DESCRIPTION
A little interface to ExtUtils::Installed to examine locally* installed modules,
validate your packlists and even create a tarball from an installed module.
*On Debian system, B<core> and B<vendor> modules are managed by C<dpkg>.
=head1 SEE ALSO
ExtUtils::Installed
=cut
my $Module_Help = <<EOF;
Available commands are:
f [all|prog|doc] - List installed files of a given type
d [all|prog|doc] - List the directories used by a module
v - Validate the .packlist - check for missing files
t <tarfile> - Create a tar archive of the module
h - Display module help
q - Quit the module
EOF
my %Module_Commands = (
f => \&list_installed,
d => \&list_directories,
v => \&validate_packlist,
t => \&create_archive,
h => \&module_help,
);
sub do_module($) {
my ($module) = @_;
print($Module_Help);
MODULE_CMD: while (1) {
print("$module cmd? ");
my $reply = <STDIN>; chomp($reply);
my($cmd) = $reply =~ /^(\w)\b/;
last if $cmd eq 'q';
if( $Module_Commands{$cmd} ) {
$Module_Commands{$cmd}->($reply, $module);
}
elsif( $cmd eq 'q' ) {
last MODULE_CMD;
}
else {
module_help();
}
}
}
sub list_installed {
my($reply, $module) = @_;
my $class = (split(' ', $reply))[1];
$class = 'all' unless $class;
my @files;
if (eval { @files = $Inst->files($module, $class); }) {
print("$class files in $module are:\n ",
join("\n ", @files), "\n");
}
else {
print($@);
}
};
sub list_directories {
my($reply, $module) = @_;
my $class = (split(' ', $reply))[1];
$class = 'all' unless $class;
my @dirs;
if (eval { @dirs = $Inst->directories($module, $class); }) {
print("$class directories in $module are:\n ",
join("\n ", @dirs), "\n");
}
else {
print($@);
}
}
sub create_archive {
my($reply, $module) = @_;
my $file = (split(' ', $reply))[1];
if( !(defined $file and length $file) ) {
print "No tar file specified\n";
}
elsif( eval { require Archive::Tar } ) {
Archive::Tar->create_archive($file, 0, $Inst->files($module));
}
else {
my($first, @rest) = $Inst->files($module);
system('tar', 'cvf', $file, $first);
for my $f (@rest) {
system('tar', 'rvf', $file, $f);
}
print "Can't use tar\n" if $?;
}
}
sub validate_packlist {
my($reply, $module) = @_;
if (my @missing = $Inst->validate($module)) {
print("Files missing from $module are:\n ",
join("\n ", @missing), "\n");
}
else {
print("$module has no missing files\n");
}
}
sub module_help {
print $Module_Help;
}
##############################################################################
sub toplevel()
{
my $help = <<EOF;
Available commands are:
l - List all installed modules
m <module> - Select a module
q - Quit the program
EOF
print($help);
while (1)
{
print("cmd? ");
my $reply = <STDIN>; chomp($reply);
CASE:
{
$reply eq 'l' and do
{
print("Installed modules are:\n ", join("\n ", @Modules), "\n");
last CASE;
};
$reply =~ /^m\s+/ and do
{
do_module((split(' ', $reply))[1]);
last CASE;
};
$reply eq 'q' and do
{
exit(0);
};
# Default
print($help);
}
}
}
###############################################################################
$Inst = ExtUtils::Installed->new();
@Modules = $Inst->modules();
toplevel();
###############################################################################