PIKApp/pdb/util.pl

53 lines
1.4 KiB
Perl

# PIKA - Photo and Image Kooker Application
# Copyright (C) 1998-2003 Manish Singh <yosh@gimp.org>
# This program 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 3 of the License, or
# (at your option) any later version.
# This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
package Pika::CodeGen::util;
use File::Basename 'basename';
use File::Copy 'cp';
use File::Compare 'cmp';
$DEBUG_OUTPUT = exists $ENV{PDBGEN_BACKUP} ? $ENV{PDBGEN_BACKUP} : 1;
$FILE_EXT = ".tmp.$$";
sub write_file {
my $file = shift;
my $destdir = shift;
my $realfile = basename($file);
$realfile =~ s/$FILE_EXT$//;
$realfile = "$destdir/$realfile";
if (-e $realfile) {
if (cmp($realfile, $file)) {
cp($realfile, "$realfile~") if $DEBUG_OUTPUT;
cp($file, $realfile);
print "Wrote $realfile\n";
}
else {
print "No changes to $realfile\n";
}
unlink $file;
}
else {
rename $file, $realfile;
print "Wrote $realfile\n";
}
}
1;