fix-perl-path.PL

   1 #!/usr/bin/perl
   2 # This file is part of Koha.
   3 #
   4 # Koha is free software; you can redistribute it and/or modify it
   5 # under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # Koha is distributed in the hope that it will be useful, but
  10 # WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with Koha; if not, see <http://www.gnu.org/licenses>.
  16 #
  17
  18 use strict;
  19 use ExtUtils::MakeMaker::Config;
  20 use Tie::File;
  21
  22 my $basedir = (shift);
  23 my $DEBUG = exists $ENV{'DEBUG'} ? $ENV{'DEBUG'} : 0;
  24
  25 $DEBUG = 1 if $basedir eq 'test';
  26
  27 my $bindir = $Config{installbin};
  28 $bindir =~ s!\\!/!g;    # make all directory separators uniform since Win32 does not care and *nix does...
  29 my $shebang = "#!$bindir\/perl";
  30
  31 warn "Perl binary located in $bindir on this system.\n" if $DEBUG;
  32 warn "The shebang line for this sytems should be $shebang\n\n" if $DEBUG;
  33
  34 die if $basedir eq 'test';
  35
  36 =head1 NAME
  37
  38 fix-perl-path.PL - A script to correct the shebang line to match the current platform
  39
  40 =head1 SYNOPSIS
  41
  42 =head2 BASIC USAGE
  43
  44     perl fix-perl-path.PL /absolute/path/to/foo
  45
  46 =head1 DESCRIPTION
  47
  48 This script should be run from the base of the directory
  49 structure which contains the file(s) that need the
  50 shebang line corrected. It will recurse through all
  51 directories below the one called from and modify all
  52 .pl files.
  53
  54 =head2 fixshebang
  55
  56 This sub will recurse through a given directory and its subdirectories checking for the existence of a shebang
  57 line in .pl files and replacing it with the correct line for the current OS if needed. It should be called
  58 in a manner similar to 'fixshebang (foodir)' but may be supplied with any directory.
  59
  60 =cut
  61
  62 sub fixshebang{
  63         my $dir = shift;
  64     opendir my $dh, $dir or die $!;
  65         warn "Reading $dir contents.\n" if $DEBUG;
  66     while( my $file = readdir($dh) ) {
  67                 # this may be used to exclude any desired files from the scan
  68         # if ( $file =~ /foo/ ) { next; }
  69                 # handle files... other extensions could be substituted/added if needed
  70                 if ( $file =~ /\.pl$/ ) {
  71             my @filearray;
  72                         my $pathfile =$dir . '/' . $file;
  73                         warn "Found a perl script named $pathfile\n" if $DEBUG;
  74
  75             # At this point, file is in 'blib' and by default
  76             # has mode a-w.  Therefore, must change permission
  77             # to make it writable.  Note that stat and chmod
  78             # (the Perl functions) should work on Win32
  79             my $old_perm;
  80             $old_perm = (stat $pathfile)[2] & 07777;
  81             my $new_perm = $old_perm | 0200;
  82             chmod $new_perm, $pathfile;
  83
  84             # tie the file -- note that we're explicitly setting the line (record)
  85             # separator to hex 0A (the Unix newline) because that's what
  86             # the files copied to blib are using, regardless of whether the install
  87             # is under a Unix variant or Windows.
  88             tie @filearray, 'Tie::File', $pathfile, recsep => "\x0a" or die $!;
  89
  90             warn "First line of $file is $filearray[0]\n\n" if $DEBUG;
  91                         if ( ( $filearray[0] =~ /#!.*perl/ ) && ( $filearray[0] !~ /$shebang|"$shebang -w"/ ) ) {
  92                                 warn "\n\tRe-writing shebang line for $pathfile\n" if $DEBUG;
  93                 warn "\tOriginal shebang line: $filearray[0]\n" if $DEBUG;
  94                 $filearray[0] =~ /-w$/ ? $filearray[0] = "$shebang -w" : $filearray[0] = $shebang;
  95                 warn "\tNew shebang line is: $filearray[0]\n\n" if $DEBUG;
  96                         }
  97             elsif ( $filearray[0] =~ /$shebang|"$shebang -w"/ ) {
  98                 warn "\n\tShebang line is correct.\n\n" if $DEBUG;
  99             }
 100                         else {
 101                 warn "\n\tNo shebang line found in $pathfile\n\n" if $DEBUG;
 102                         }
 103             untie @filearray;
 104             chmod $old_perm, $pathfile;
 105                 }
 106                 # handle directories
 107                 elsif ( -d ($dir . '/' . $file) && $file !~ /^\.{1,2}/ ) {
 108                         my $dirpath = $dir . '/' . $file;
 109                         warn "Found a subdir named $dirpath\n" if $DEBUG;
 110                         fixshebang ($dirpath);
 111                 }
 112         }
 113         closedir $dh;
 114 }
 115
 116 fixshebang ($basedir);
 117