Win32 support: Adding a script to modify shebang lines per installation platfom.

Signed-off-by: Galen Charlton <galen.charlton@liblime.com>

fix-perl-path.PL

@@ -0,0 +1,109 @@
+#!c:\strawberry-perl\perl\bin\perl
+# This file is part of Koha.
+#
+# Koha is free software; you can redistribute it and/or modify it under the
+# terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 2 of the License, or (at your option) any later
+# version.
+#
+# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+# A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
+# Suite 330, Boston, MA  02111-1307 USA
+#
+
+use strict;
+use ExtUtils::MakeMaker::Config;
+use Tie::File;
+
+my $basedir = (shift);
+my $DEBUG = 1;
+
+$DEBUG = 1 if $basedir eq 'test';
+
+my $bindir = $Config{installbin};
+$bindir =~ s!\\!/!g;	# make all directory separators uniform...
+my $shebang = "#!$bindir\/perl -w";
+
+warn "Perl binary located in $bindir on this system.\n" if $DEBUG;
+warn "The shebang line for this sytems should be $shebang\n\n" if $DEBUG;
+
+die if $basedir eq 'test';
+
+=head1 NAME
+
+fix-perl-path.PL - A script to correct the shebang line to match the current platform
+
+=head1 SYNOPSIS
+
+=head2 BASIC USAGE
+
+    perl fix-perl-path.PL /absolute/path/to/foo
+
+=head1 DESCRIPTION
+
+This script should be run from the base of the directory
+structure which contains the file(s) that need the
+shebang line corrected. It will recurse through all
+directories below the one called from and modify all
+.pl files.
+
+=head2 fixshebang
+
+This sub will recurse through a given directory and its subdirectories checking for the existence of a shebang
+line in .pl files and replacing it with the correct line for the current OS if needed. It should be called
+in a manner similar to 'fixshebang (foodir)' but may be supplied with any directory.
+
+=cut
+
+sub fixshebang{
+	# NOTE: this might be dressed up a bit with File::Spec since we're using it here already.
+	my $dir = shift;
+    opendir my $dh, $dir or die $!;
+	warn "Reading $dir contents.\n" if $DEBUG;
+    while( my $file = readdir($dh) ) {
+		# this may be used to exclude any desired files from the scan
+		if ( $file =~ /shebang|wixgen/ ) { next; }
+		# handle files... other extensions could be substituted/added if needed
+		if ( $file =~ /\.pl$/ ) {
+            my @filearray;
+			my $pathfile =$dir . '/' . $file;
+			warn "Found a perl script named $pathfile\n" if $DEBUG;
+            tie @filearray, 'Tie::File', $pathfile or die $!;
+            print "First line of $file is $filearray[0]\n\n";
+			if ( ( $filearray[0] =~ /#!.*perl/ ) && ( $filearray[0] !~ /$shebang/ ) ) {
+				warn "\n\tRe-writing shebang line for $pathfile\n" if $DEBUG;
+                warn "\tOriginal shebang line: $filearray[0]\n" if $DEBUG;
+                $filearray[0] = $shebang;
+                warn "\tNew shebang line is: $filearray[0]\n\n" if $DEBUG;
+                untie @filearray;
+                next;
+			}
+            elsif ( $filearray[0] =~ /$shebang/ ) {
+                warn "\n\tShebang line is correct.\n\n" if $DEBUG;
+                untie @filearray;
+                next;
+            }
+			else {
+                warn "\n\tNo shebang line found in $pathfile\n\n" if $DEBUG;
+                untie @filearray;
+				next;
+			}
+		}
+		# handle directories
+		elsif ( -d ($dir . '/' . $file) && $file !~ /^\.{1,2}/ ) {
+			my $dirpath = $dir . '/' . $file;
+			warn "Found a subdir named $dirpath\n" if $DEBUG;
+			fixshebang ($dirpath);
+#			closedir $dh;	# I'm not really sure if this is necessary
+		}
+	}
+	closedir $dh;
+}
+
+fixshebang ($basedir);
+
+