ga-sumsize

   1 #!/usr/bin/env perl
   2
   3 #=======================================================================
   4 # ga-sumsize
   5 # File ID: dc4436de-5619-11e5-9330-000df06acc56
   6 #
   7 # Read git-annex keys from stdin or files and output total size.
   8 #
   9 # Character set: UTF-8
  10 # ©opyleft 2015– Øyvind A. Holm <sunny@sunbase.org>
  11 # License: GNU General Public License version 2 or later, see end of
  12 # file for legal stuff.
  13 #=======================================================================
  14
  15 use strict;
  16 use warnings;
  17 use Getopt::Long;
  18 use Number::Bytes::Human qw(format_bytes);
  19
  20 local $| = 1;
  21
  22 our %Opt = (
  23
  24     'display' => 0,
  25     'help' => 0,
  26     'quiet' => 0,
  27     'verbose' => 0,
  28     'version' => 0,
  29
  30 );
  31
  32 our $progname = $0;
  33 $progname =~ s/^.*\/(.*?)$/$1/;
  34 our $VERSION = '0.2.0';
  35
  36 Getopt::Long::Configure('bundling');
  37 GetOptions(
  38
  39     'display|d' => \$Opt{'display'},
  40     'help|h' => \$Opt{'help'},
  41     'quiet|q+' => \$Opt{'quiet'},
  42     'verbose|v+' => \$Opt{'verbose'},
  43     'version' => \$Opt{'version'},
  44
  45 ) || die("$progname: Option error. Use -h for help.\n");
  46
  47 $Opt{'verbose'} -= $Opt{'quiet'};
  48 $Opt{'help'} && usage(0);
  49 if ($Opt{'version'}) {
  50     print_version();
  51     exit(0);
  52 }
  53
  54 exit(main());
  55
  56 sub main {
  57     # {{{
  58     my $Retval = 0;
  59     my $total_size = 0;
  60
  61     while (<>) {
  62         $total_size += file_size($_);
  63         $Opt{'display'} && print("$total_size ");
  64         print;
  65     }
  66
  67     printf("\n%s: Total size of keys: %u (%s)\n",
  68         $progname,
  69         $total_size,
  70         format_bytes($total_size, bs => 1000),
  71     );
  72
  73     return $Retval;
  74     # }}}
  75 } # main()
  76
  77 sub file_size {
  78     # Read file size from git-annex key {{{
  79     my $key = shift;
  80     my $retval = 0;
  81     if ($key =~ /[A-Z0-9_]+-s(\d+)-/) {
  82         $retval = $1;
  83     }
  84     return($retval)
  85     # }}}
  86 } # file_size()
  87
  88 sub print_version {
  89     # Print program version {{{
  90     print("$progname $VERSION\n");
  91     return;
  92     # }}}
  93 } # print_version()
  94
  95 sub usage {
  96     # Send the help message to stdout {{{
  97     my $Retval = shift;
  98
  99     if ($Opt{'verbose'}) {
 100         print("\n");
 101         print_version();
 102     }
 103     print(<<"END");
 104
 105 Read git-annex keys from stdin or files and output total size.
 106
 107 For example:
 108
 109   git-annex unused >unused.txt
 110   $progname unused.txt
 111
 112 Usage: $progname [options] [file [files [...]]]
 113
 114 Options:
 115
 116   -d, --display
 117     Prefix each line with the current count.
 118   -h, --help
 119     Show this help.
 120   -q, --quiet
 121     Be more quiet. Can be repeated to increase silence.
 122   -v, --verbose
 123     Increase level of verbosity. Can be repeated.
 124   --version
 125     Print version information.
 126
 127 END
 128     exit($Retval);
 129     # }}}
 130 } # usage()
 131
 132 sub msg {
 133     # Print a status message to stderr based on verbosity level {{{
 134     my ($verbose_level, $Txt) = @_;
 135
 136     if ($Opt{'verbose'} >= $verbose_level) {
 137         print(STDERR "$progname: $Txt\n");
 138     }
 139     return;
 140     # }}}
 141 } # msg()
 142
 143 __END__
 144
 145 # This program is free software; you can redistribute it and/or modify
 146 # it under the terms of the GNU General Public License as published by
 147 # the Free Software Foundation; either version 2 of the License, or (at
 148 # your option) any later version.
 149 #
 150 # This program is distributed in the hope that it will be useful, but
 151 # WITHOUT ANY WARRANTY; without even the implied warranty of
 152 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 153 # See the GNU General Public License for more details.
 154 #
 155 # You should have received a copy of the GNU General Public License
 156 # along with this program.
 157 # If not, see L<http://www.gnu.org/licenses/>.
 158
 159 # vim: set fenc=UTF-8 ft=perl fdm=marker ts=4 sw=4 sts=4 et fo+=w :