package blib; =head1 NAME blib - Use MakeMaker's uninstalled version of a package =head1 SYNOPSIS perl -Mblib script [args...] perl -Mblib=dir script [args...] =head1 DESCRIPTION Looks for MakeMaker-like I<'blib'> directory structure starting in I (or current directory) and working back up to five levels of '..'. Intended for use on command line with B<-M> option as a way of testing arbitary scripts against an uninstalled version of a package. However it is possible to : use blib; or use blib '..'; etc. if you really must. =head1 BUGS Pollutes global name space for development only task. =head1 AUTHOR Nick Ing-Simmons nik@tiuk.ti.com =cut use Cwd; sub import { my $package = shift; my $dir = getcwd; if (@_) { print join(',',@_),"\n"; $dir = shift; $dir =~ s/blib$//; $dir =~ s,/+$,,; $dir = '.' unless ($dir); die "$dir is not a directory\n" unless (-d $dir); } my $i = 5; while ($i--) { my $blib = "${dir}/blib"; if (-d $blib && -d "$blib/arch" && -d "$blib/lib") { unshift(@INC,"$blib/arch","$blib/lib"); warn "Using $blib\n"; return; } $dir .= "/.."; } die "Cannot find blib even in $dir\n"; } 1;