File Coverage

blib/lib/lib/projectroot.pm

Criterion	Covered	Total	%
statement	59	75	78.6
branch	17	26	65.3
condition			n/a
subroutine	10	11	90.9
pod	0	2	0.0
total	86	114	75.4

package lib::projectroot;

# ABSTRACT: easier loading of a project's local libs
our $VERSION = '1.010'; # VERSION

use strict;
use warnings;
use 5.010;

use FindBin qw();
use Carp qw(carp);
use File::Spec::Functions qw(catdir splitdir);
use local::lib qw();
use lib qw();

our $ROOT;

sub import {
    my $class = shift;
    my @libdirs;
    my @locallibs;
    my @extra;
    my @extra_with_local;
    foreach my $d (@_) {
        if ( $d =~ /^local::lib=([\S]+)/ ) {
            push( @libdirs,   $1 );
            push( @locallibs, $1 );
        }
        elsif ( $d =~ /^extra=([\S]+)/ ) {
            @extra = split( /[,;]/, $1 );
        }
        elsif ( $d =~ /^extra_with_local=([\S]+)/ ) {
            @extra_with_local = split( /[,;]/, $1 );
        }
        else {
            push( @libdirs, $d );
        }
    }

    my @searchdirs = splitdir("$FindBin::Bin");

    unless ($ROOT) {
    SEARCH: while (@searchdirs) {
            foreach my $dir (@libdirs) {
                unless ( -d catdir( @searchdirs, $dir ) ) {
                    pop(@searchdirs);
                    next SEARCH;
                }
            }
            $ROOT = catdir(@searchdirs);
            last SEARCH;
        }
    }

    if ($ROOT) {
        local::lib->import( map { catdir( $ROOT, $_ ) } @locallibs )
            if @locallibs;
        lib->import( map { catdir( $ROOT, $_ ) } @libdirs ) if @libdirs;
        __PACKAGE__->load_extra(@extra) if @extra;
        __PACKAGE__->load_extra_with_local(@extra_with_local)
            if @extra_with_local;
    }
    else {
        carp "Could not find root dir containing " . join( ', ', @libdirs );
    }
}

sub load_extra {
    my $class  = shift;
    my @extras = @_;

    my @parts = splitdir($ROOT);
    pop(@parts);
    my $parent = catdir(@parts);

    foreach my $d (@extras) {
        my $extra = catdir( $parent, $d, 'lib' );
        if ( -d $extra ) {
            push( @INC, $extra );
        }
        else {
            carp "Cannot load_extra $d, directory $extra does not exist";
        }
    }
}

sub load_extra_with_local {
    my $class  = shift;
    my @extras = @_;

    my @parts = splitdir($ROOT);
    pop(@parts);
    my $parent = catdir(@parts);

    foreach my $d (@extras) {
        my $extra = catdir( $parent, $d, 'lib' );
        if ( -d $extra ) {
            push( @INC, $extra );
            my $extra_local = catdir( $parent, $d, 'local' );
            if ( -d $extra_local ) {
                local::lib->import($extra_local);
            }
            else {
                carp
                    "Cannot load local::lib in extra $d, directory $extra_local does not exist";

            }
        }
        else {
            carp "Cannot load_extra $d, directory $extra does not exist";
        }
    }
}

42;

__END__