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don't delete if source and target are the same file (inode/filesystem)

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Ward Wouts 2002-06-09 20:17:07 +00:00
parent 692ec451fe
commit 23e4c0e01b
1 changed files with 18 additions and 10 deletions
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8
safe_mv/safe_mv
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@ -44,9 +44,16 @@ sub help {
sub compare($source, $target) {
my ($source_size, $target_size);
my (@source_stat, @target_stat);
print "Comparing... ";
# First compare size. If this differs, we're done quickly.
if ( (-s $source) == (-s $target) ) {
@source_stat = stat $source;
@target_stat = stat $target;
if (( $source_stat[1] == $target_stat[1] ) &&
( $source_stat[0] == $target_stat[0] )) {
print "Skipped $source & $target are one and the same!\n"
} else {
if ( $DEBUG ) { print "$source and $target are the same size\n"; }
$source_digest = &calc_md5($source);
if ( $DEBUG ) { print "source digest $source_digest\n"; }
@ -59,6 +66,7 @@ sub compare($source, $target) {
} else {
print "Skipped mv $source -> $target files differ\n"
}
}
} else {
print "Skipped mv $source -> $target files differ\n";
}