git-tree-size

   1 #!/usr/bin/env perl
   2
   3 #=======================================================================
   4 # git-tree-size
   5 # File ID: 7364955c-334d-11e1-b42e-4302457ff287
   6 # [Description]
   7 #
   8 # Character set: UTF-8
   9 # ©opyleft 2011– Øyvind A. Holm <sunny@sunbase.org>
  10 # License: GNU General Public License version 2 or later, see end of
  11 # file for legal stuff.
  12 #=======================================================================
  13
  14 use strict;
  15 use warnings;
  16 use Getopt::Long;
  17
  18 local $| = 1;
  19
  20 our $Debug = 0;
  21
  22 our %Opt = (
  23
  24     'debug' => 0,
  25     'help' => 0,
  26     'verbose' => 0,
  27     'version' => 0,
  28
  29 );
  30
  31 our $progname = $0;
  32 $progname =~ s/^.*\/(.*?)$/$1/;
  33 our $VERSION = '0.00';
  34
  35 Getopt::Long::Configure('bundling');
  36 GetOptions(
  37
  38     'debug' => \$Opt{'debug'},
  39     'help|h' => \$Opt{'help'},
  40     'verbose|v+' => \$Opt{'verbose'},
  41     'version' => \$Opt{'version'},
  42
  43 ) || die("$progname: Option error. Use -h for help.\n");
  44
  45 $Opt{'debug'} && ($Debug = 1);
  46 $Opt{'help'} && usage(0);
  47 if ($Opt{'version'}) {
  48     print_version();
  49     exit(0);
  50 }
  51
  52 my $rev = defined($ARGV[0]) ? $ARGV[0] : 'HEAD';
  53 print(treesize($rev) . "\n");
  54
  55 sub treesize {
  56     # {{{
  57     my $commit = shift;
  58     my $Retval = 0;
  59     open(PipeFP, "git ls-tree --full-tree -l -r $commit | cut -f 1 |") or die("$progname: Cannot open git ls-tree pipe: $!");
  60     while (<PipeFP>) {
  61         if (/ blob /) {
  62             s/^.*?(\d+)$/$1/;
  63             $Retval += $_;
  64         }
  65     }
  66     return($Retval);
  67     # }}}
  68 } # treesize()
  69
  70 sub print_version {
  71     # Print program version {{{
  72     print("$progname v$VERSION\n");
  73     return;
  74     # }}}
  75 } # print_version()
  76
  77 sub usage {
  78     # Send the help message to stdout {{{
  79     my $Retval = shift;
  80
  81     if ($Opt{'verbose'}) {
  82         print("\n");
  83         print_version();
  84     }
  85     print(<<"END");
  86
  87 Usage: $progname [options] [tree-ish]
  88
  89 Options:
  90
  91   -h, --help
  92     Show this help.
  93   -v, --verbose
  94     Increase level of verbosity. Can be repeated.
  95   --version
  96     Print version information.
  97   --debug
  98     Print debugging messages.
  99
 100 END
 101     exit($Retval);
 102     # }}}
 103 } # usage()
 104
 105 sub msg {
 106     # Print a status message to stderr based on verbosity level {{{
 107     my ($verbose_level, $Txt) = @_;
 108
 109     if ($Opt{'verbose'} >= $verbose_level) {
 110         print(STDERR "$progname: $Txt\n");
 111     }
 112     return;
 113     # }}}
 114 } # msg()
 115
 116 sub D {
 117     # Print a debugging message {{{
 118     $Debug || return;
 119     my @call_info = caller;
 120     chomp(my $Txt = shift);
 121     my $File = $call_info[1];
 122     $File =~ s#\\#/#g;
 123     $File =~ s#^.*/(.*?)$#$1#;
 124     print(STDERR "$File:$call_info[2] $$ $Txt\n");
 125     return('');
 126     # }}}
 127 } # D()
 128
 129 __END__
 130
 131 # Plain Old Documentation (POD) {{{
 132
 133 =pod
 134
 135 =head1 NAME
 136
 137
 138
 139 =head1 SYNOPSIS
 140
 141  [options] [file [files [...]]]
 142
 143 =head1 DESCRIPTION
 144
 145
 146
 147 =head1 OPTIONS
 148
 149 =over 4
 150
 151 =item B<-h>, B<--help>
 152
 153 Print a brief help summary.
 154
 155 =item B<-v>, B<--verbose>
 156
 157 Increase level of verbosity. Can be repeated.
 158
 159 =item B<--version>
 160
 161 Print version information.
 162
 163 =item B<--debug>
 164
 165 Print debugging messages.
 166
 167 =back
 168
 169 =head1 BUGS
 170
 171
 172
 173 =head1 AUTHOR
 174
 175 Made by Øyvind A. Holm S<E<lt>sunny@sunbase.orgE<gt>>.
 176
 177 =head1 COPYRIGHT
 178
 179 Copyleft © Øyvind A. Holm E<lt>sunny@sunbase.orgE<gt>
 180 This is free software; see the file F<COPYING> for legalese stuff.
 181
 182 =head1 LICENCE
 183
 184 This program is free software: you can redistribute it and/or modify it
 185 under the terms of the GNU General Public License as published by the
 186 Free Software Foundation, either version 2 of the License, or (at your
 187 option) any later version.
 188
 189 This program is distributed in the hope that it will be useful, but
 190 WITHOUT ANY WARRANTY; without even the implied warranty of
 191 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 192 See the GNU General Public License for more details.
 193
 194 You should have received a copy of the GNU General Public License along
 195 with this program.
 196 If not, see L<http://www.gnu.org/licenses/>.
 197
 198 =head1 SEE ALSO
 199
 200 =cut
 201
 202 # }}}
 203
 204 # vim: set fenc=UTF-8 ft=perl fdm=marker ts=4 sw=4 sts=4 et fo+=w :