From 8511cab2ccd79b8d6bc237548a8e4e6050d0b8c3 Mon Sep 17 00:00:00 2001
From: Paul Buetow <paul@buetow.org>
Date: Fri, 15 Apr 2022 21:42:04 +0100
Subject: cleanup nonexisten images

---
 katana.raku | 29 +++++++++++++++++++++--------
 1 file changed, 21 insertions(+), 8 deletions(-)

diff --git a/katana.raku b/katana.raku
index 6d5b104..2b9b4fd 100755
--- a/katana.raku
+++ b/katana.raku
@@ -14,7 +14,7 @@ class Template {
 }
 
 class Image {
-  has Str $!filename;
+  has Str $.filename;
   has Str $!source;
   has Str $!dist-dir;
 
@@ -25,27 +25,39 @@ class Image {
   }
 
   method generate(Int :$thumb-geometry, Str :$bg-blur) {
-    my $thumb = "$!dist-dir/thumb/{$!filename}";
+    my $thumb = "$!dist-dir/thumb/{$.filename}";
     ⁉ [|<convert -auto-orient -geometry>, $thumb-geometry, $!source, $thumb];
 
-    my $blur = "$!dist-dir/blur/{$!filename}";
+    my $blur = "$!dist-dir/blur/{$.filename}";
     ⁉ [|<convert -flip -geometry>, $thumb-geometry/4, '-blur', $bg-blur, $thumb, $blur];
 
-    my $large = "$!dist-dir/large/{$!filename}";
+    my $large = "$!dist-dir/large/{$.filename}";
     ⁉ ['cp', $!source, $large];
   }
 
-  method thumb_tag { "<img class='thumb' src='./thumb/{$!filename}' />" }
-  method large_tag { "<img class='large' src='./large/{$!filename}' />" }
+  method thumb_tag { "<img class='thumb' src='./thumb/{$.filename}' />" }
+  method large_tag { "<img class='large' src='./large/{$.filename}' />" }
+}
+
+sub dist-dirs(Str $dist-dir --> List) {
+  $dist-dir <<~>> </large /blur /thumb>
 }
 
 sub ensure-directories(Str :$dist-dir) {
   mkdir $dist-dir unless $dist-dir.IO.d;
-  mkdir $_ unless .IO.d for $dist-dir <<~>> </large /blur /thumb>;
+  mkdir $_ unless .IO.d for dist-dirs $dist-dir;
+}
+
+sub cleanup-nonexistent (Str :$dist-dir, :@images) {
+  my $images = set @images.map:{ $_.filename };
+  for dist-dirs $dist-dir -> $dir {
+    unlink $_ if .IO.basename ∉ $images
+      for dir($dir, test => { "$dir/$_".IO.f });
+  }
 }
 
 sub make-mr-proper(Str :$dist-dir) {
-  ❱  ['rm', '-rf', $dist-dir] if $dist-dir.IO.d;
+  ❱ ['rm', '-rf', $dist-dir] if $dist-dir.IO.d;
 }
 
 multi MAIN(
@@ -63,6 +75,7 @@ multi MAIN(
   @images = @images.pick: * if $randomize;
   say "Found {@images.elems} images";
 
+  cleanup-nonexistent :$dist-dir, :@images;
   make-mr-proper :$dist-dir if $mr-proper;
   ensure-directories :$dist-dir;
 
-- 
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