pdb/util.pl

   1 # GIMP - The GNU Image Manipulation Program
   2 # Copyright (C) 1998-2003 Manish Singh <yosh@gimp.org>
   3
   4 # This program is free software: you can redistribute it and/or modify
   5 # it 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 # This program is distributed in the hope that it will be useful,
  10 # but 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 this program.  If not, see <https://www.gnu.org/licenses/>.
  16
  17 package Gimp::CodeGen::util;
  18
  19 use File::Basename 'basename';
  20 use File::Copy 'cp';
  21 use File::Compare 'cmp';
  22
  23 $DEBUG_OUTPUT = exists $ENV{PDBGEN_BACKUP} ? $ENV{PDBGEN_BACKUP} : 1;
  24
  25 $FILE_EXT = ".tmp.$$";
  26
  27 sub write_file {
  28     my $file = shift;
  29     my $destdir = shift;
  30
  31     my $realfile = basename($file);
  32     $realfile =~ s/$FILE_EXT$//;
  33     $realfile = "$destdir/$realfile";
  34
  35     if (-e $realfile) {
  36         if (cmp($realfile, $file)) {
  37             cp($realfile, "$realfile~") if $DEBUG_OUTPUT;
  38             cp($file, $realfile);
  39             print "Wrote $realfile\n";
  40         }
  41         else {
  42             print "No changes to $realfile\n";
  43         }
  44         unlink $file;
  45     }
  46     else {
  47         rename $file, $realfile;
  48         print "Wrote $realfile\n";
  49     }
  50 }
  51
  52 1;