dieren: high-resolution webp image alternatives

[sheet.git] / tools / mkimgthumb

diff --git a/tools/mkimgthumb b/tools/mkimgthumb
index d7cfa15926915936bf99292ef1b99c8db475a866..217b7734d45ec55c2d2100bb314645ade9ace804 100755 (executable)
--- a/tools/mkimgthumb
+++ b/tools/mkimgthumb
@@ -2,12 +2,32 @@
 use 5.014;
 use warnings;
 
+my $failcount = 0;
+
 for my $src (@ARGV) {
-       my ($name, @cmds) = split /:/, $src =~ s/\.jpg$//r;
+       my ($name, @cmds) = split /:(?<!\\:)/, $src =~ s/\.(\w+)\z//r;
+       my $ext = $1 // '*';
+       next if $name =~ m/\./;
+       unless (-e $src) {
+               ($src) = grep {-e} glob qq<"$name"{,:*}.$ext> or next;
+       }
+       s/\\(.)/$1/g for @cmds;
        say $name;
-       unshift @cmds, -gravity => 'northwest';
-       push @cmds, -resize => '300x200^', -gravity => 'north', -extent => '300x200';
-       push @cmds, '-strip', -quality => '60%';
-       system convert => @cmds, $src => "../$name.jpg";
+
+       if (@cmds and $cmds[0] =~ /^\d/) {
+               # crop shorthand from initial dimension argument
+               my @crop = split /\D/, shift @cmds;
+               unshift @cmds, -gravity => 'southeast', -chop => "$crop[2]%x$crop[3]%"
+                       if @crop > 2;
+               unshift @cmds, -chop => "$crop[0]%x$crop[1]%";
+       }
+       unshift @cmds, -gravity => 'northwest' if @cmds;
+       push @cmds, '-strip', -gravity => 'north', -quality => 60;
+       my @cmdwebp = (-resize => '630x420^', -extent => '630x420', -quality => 30);
+       my @cmdjpeg = (-resize => '300x200^', -extent => '300x200');
+       system(convert => $src, @cmds, @cmdjpeg, "../$name.jpg" ) == 0 and
+       system(convert => $src, @cmds, @cmdwebp, "../$name.webp") == 0
+               or $failcount += warn "error creating $name.jpg from $src\n";
 }
 
+exit $failcount;