#20 Backups of Important Files

[Morbus Iff]

AmphetaDesk should support backups of the data/
myChannels.opml and data/mySettings.xml files - one
should be made every couple of days, and the last five
iterations should be kept hanging around. I've got code to do
this already somewhere, just a matter of finding it again.

[Morbus Iff]

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Here's that old code, sure to be slaughtered due to wordwraps:

# wipe out old backups. we keep, at most, five weeks worth.
# open the backup directory, get the files, and sort by name
(date).
opendir(DIR, $backup_files_to) or die "couldn't open backup dir:
$!";
my @files = grep /^[^\.]/, readdir(DIR); closedir(DIR); @files =
sort @files;

# get the total number of files. we use this to figure out how
# many files we want to delete by going that far into the array
# (if there are 20 files, then we need to delete the first 15).
my $total_files = scalar @files;
for (my $i = 0; $i < $total_files - 5; $i++) {
unlink "$backup_files_to$files[$i]";
print "Removing old backup files: $backup_files_to$files[$i]\n";
}