122 lines
3.5 KiB
Raku
Executable File
122 lines
3.5 KiB
Raku
Executable File
#!/usr/bin/env raku
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#| resize images for uploading to gallery sites
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unit sub MAIN(
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#| number of concurrent jobs (default min{10, # cores})
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Int :j(:$jobs) = min(10, $*KERNEL.cpu-cores),
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#| formats to use for mastodon (png, webp, jpg, default, skip)
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:m(:$mastodon) = 'default',
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#| formats to use for itaku
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:i(:$itaku) = 'default',
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#| formats to use for furaffinity/weasyl
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:f(:$furaffinity) = 'default',
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#| formats to use for gallery.n.w
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:g(:$gallery) = 'default',
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#| webp/jpg quality setting (default 98)
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Int :Q(:$quality) = 98,
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#| only run conversions explicitly mentioned
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Bool :O(:$only) = False,
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Bool :n(:$dry-run) = False,
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Bool :v(:$verbose) = False,
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#| out dir, default ./out
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IO(Str) :o(:$outdir) = 'out'.IO,
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#| output as e.g. thing.mastodon.webp instead of mastodon/thing.webp
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Bool :F(:$flat) = False,
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Str :B(:$background) = 'white',
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#| defaults to all *.png & *.jpg files in the current dir
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*@files,
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);
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sub cmd(*@args) {
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say "> @args[]" if $dry-run || $verbose;
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run @args unless $dry-run;
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}
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sub verbose(*@args) { say "> @args[]" if $verbose }
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# fixup args
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enum Format <png webp jpg>;
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sub to-formats($_, *@default) {
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when 'skip' { Empty }
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when 'default' { $only ?? Empty !! @default }
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when Format { $_ }
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.lc.split(',').map: { Format::{$_} // die qq/unrecognised format "$_"/ }
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}
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my @mastodon = to-formats $mastodon, webp;
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my @itaku = to-formats $itaku, webp;
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my @furaffinity = to-formats $furaffinity, png, jpg;
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my @gallery = to-formats $gallery, webp;
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die "furaffinity/weasyl don't know what webp are" if @furaffinity.any == webp;
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unless @files.=map(*.IO) {
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@files = $*CWD.dir: test => /:i \.[jpe?g|png]$/ && *.IO.f;
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}
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for @files { die "$_ is not a regular file" unless .f; }
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# running imagemagick (and oxipng sometimes) 🪄
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sub convert($in, $name, $size, $format) {
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my $out = $flat
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?? $outdir.child($in.basename).extension("$name.$format")
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!! $outdir.child($name).child($in.basename).extension("$format");
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my @bg-flags = «-background $background -alpha remove» if $format == jpg;
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cmd <mkdir -p>, $out.dirname;
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cmd <convert>, $in, '-resize', $size, '-quality', $quality, @bg-flags, $out;
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cmd <oxipng -q>, $out if $format == png;
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$out
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}
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sub square($s) { "{$s}x{$s}>" }
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my @sites = [
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{:name<mastodon>, :formats(@mastodon), :size("{1280²}@")},
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{:name<itaku>, :formats(@itaku), :size(square 2800)},
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{:name<furaffinity>, :formats(@furaffinity), :size(square 1500)},
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{:name<gallery>, :formats(@gallery), :size(square 3000)},
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];
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# go go go
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my @tasks;
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sub task-serial(&body, :$if = True) { body if $if; }
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sub task-parallel(&body, :$if = True) {
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state $sem = Semaphore.new: $jobs;
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return unless $if;
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my $task = start { $sem.acquire; my $res = body; $sem.release; $res }
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@tasks.push: $task;
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$task
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}
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constant &task = $dry-run ?? &task-serial !! &task-parallel;
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my @todo = (@files X @sites).map: -> ($file, %rest) { hash :$file, %rest };
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my $len = @todo.map(*.<formats>).sum;
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my $index;
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for @todo -> (:$file, :$name, :@formats, :$size) {
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my @outputs = @formats.map: -> $format {
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my $i = ++$index; my $base = $file.basename;
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task {
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say "[$i/$len] $name $base ($format)";
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convert $file, $name, $size, $format;
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}
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}
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task if => !$dry-run && @outputs > 1, {
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my $keep = @outputs».=result.map({$_ => .s}).min(*.value).key;
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verbose "# keeping $keep";
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for @outputs { next when $keep; cmd "rm", $_ }
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}
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}
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@tasks».result;
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