Lazy dcache.perl

#!/usr/bin/perl -w my $confDcachePath = "/daq/pnfs/triumf.ca/data/belle2/2015"; $| = 1; my $KiB = 1024; my $MiB = 1024*1024; my $GiB = 1024*1024*1024; my $file = shift @ARGV; my @file = split(/\//, $file); my $fname = pop @file; die "Input file $file is not readable: $!\n" unless -r $file; my $size = -s $file; print "Consider $fname $size bytes $file\n"; my $isThere = checkFile($fname, $size); if ($isThere) { # nothing to do print "File $fname already in dcache!\n"; exit 0; } my $dfile = $confDcachePath."/".$fname; print "Backup $fname $size bytes $file to $dfile\n"; my $cmd = "/usr/bin/time dccp $file $dfile"; #my $cmd = "touch $dfile"; print "Run $cmd\n"; system $cmd; die "Output file $dfile does not exist: $!\n" if ! -e $dfile; my $dsize = -s $dfile; die "Output file $dfile size mismatch: $dsize expected $size\n" unless $dsize == $size; exit 0; sub checkFile { my $file = shift @_; my $size = shift @_; my $dfile = "$confDcachePath/$file"; my $cmd = "/bin/ls -l $dfile"; my $ls = `$cmd 2>&1`; #print "[$ls]\n"; return 0 if ($ls =~ /No such file or directory/); my ($perm, $nlink, $uid, $gid, $xsize) = split(/\s+/, $ls); #print "size [$size] [$xsize]\n"; print "Found dcache file: $dfile, size: $size bytes\n"; # dCache will report a size of 1 is the file is > 2GB if ($size > 2147483647) { print "File is larger than 2 GB, dCache reports a size of $xsize"; return 1 if ($xsize == 1); } else { return 1 if ($size == $xsize); } # file not found, or wrong size return 0; } #end