display human sizes

diff --git a/IkiWiki/Plugin/attachment.pm b/IkiWiki/Plugin/attachment.pm
index 690b61cbc27255885c84dd48e62cce91759e9fc2..a8e50f833b4121d918cb3c5296a5d442a71f3a57 100644 (file)
--- a/IkiWiki/Plugin/attachment.pm
+++ b/IkiWiki/Plugin/attachment.pm
@@ -38,7 +38,7 @@ sub attachment_list ($) {
                        push @ret, {
                                "field-select" => '<input type="checkbox" name="attachment_select" value="'.$f.'">',
                                link => htmllink($page, $page, $f, noimageinline => 1),
-                               size => (stat(_))[7],
+                               size => humansize((stat(_))[7]),
                                mtime => displaytime($IkiWiki::pagemtime{$f}),
                        };
                }
@@ -174,32 +174,70 @@ sub formbuilder (@) { #{{{
        }
 } # }}}
 
-package IkiWiki::PageSpec;
+my %units=(            # size in bytes
+       B               => 1,
+       byte            => 1,
+       KB              => 2 ** 10,
+       kilobyte        => 2 ** 10,
+       K               => 2 ** 10,
+       KB              => 2 ** 10,
+       kilobyte        => 2 ** 10,
+       M               => 2 ** 20,
+       MB              => 2 ** 20,
+       megabyte        => 2 ** 20,
+       G               => 2 ** 30,
+       GB              => 2 ** 30,
+       gigabyte        => 2 ** 30,
+       T               => 2 ** 40,
+       TB              => 2 ** 40,
+       terabyte        => 2 ** 40,
+       P               => 2 ** 50,
+       PB              => 2 ** 50,
+       petabyte        => 2 ** 50,
+       E               => 2 ** 60,
+       EB              => 2 ** 60,
+       exabyte         => 2 ** 60,
+       Z               => 2 ** 70,
+       ZB              => 2 ** 70,
+       zettabyte       => 2 ** 70,
+       Y               => 2 ** 80,
+       YB              => 2 ** 80,
+       yottabyte       => 2 ** 80,
+       # ikiwiki, if you find you need larger data quantities, either modify
+       # yourself to add them, or travel back in time to 2008 and kill me.
+       #   -- Joey
+);
 
 sub parsesize ($) { #{{{
        my $size=shift;
+
        no warnings;
        my $base=$size+0; # force to number
        use warnings;
-       my $multiple=1;
-       if ($size=~/kb?$/i) {
-               $multiple=2**10;
-       }
-       elsif ($size=~/mb?$/i) {
-               $multiple=2**20;
-       }
-       elsif ($size=~/gb?$/i) {
-               $multiple=2**30;
+       foreach my $unit (sort keys %units) {
+               if ($size=~/\Q$unit\E/i) {
+                       return $base * $units{$unit};
+               }
        }
-       elsif ($size=~/tb?$/i) {
-               $multiple=2**40;
+       return $base;
+} #}}}
+
+sub humansize ($) { #{{{
+       my $size=shift;
+
+       foreach my $unit (reverse sort { $units{$a} <=> $units{$b} || $b cmp $a } keys %units) {
+               if ($size / $units{$unit} > 0.25) {
+                       return (int($size / $units{$unit} * 100)/100)."$unit";
+               }
        }
-       return $base * $multiple;
+       return $size; # near zero, or negative
 } #}}}
 
+package IkiWiki::PageSpec;
+
 sub match_maxsize ($$;@) { #{{{
        shift;
-       my $maxsize=eval{parsesize(shift)};
+       my $maxsize=eval{IkiWiki::Plugin::attachment::parsesize(shift)};
        if ($@) {
                return IkiWiki::FailReason->new("unable to parse maxsize (or number too large)");
        }
@@ -219,7 +257,7 @@ sub match_maxsize ($$;@) { #{{{
 
 sub match_minsize ($$;@) { #{{{
        shift;
-       my $minsize=eval{parsesize(shift)};
+       my $minsize=eval{IkiWiki::Plugin::attachment::parsesize(shift)};
        if ($@) {
                return IkiWiki::FailReason->new("unable to parse minsize (or number too large)");
        }