initiale Version (klassische Seitennavigation, keine Themes)

_plugins/jekyll_minimagick.rb

@@ -0,0 +1,80 @@
+require 'mini_magick'
+
+module Jekyll
+  module JekyllMinimagick
+
+    class GeneratedImageFile < Jekyll::StaticFile
+      # Initialize a new GeneratedImage.
+      #   +site+ is the Site
+      #   +base+ is the String path to the <source>
+      #   +dir+ is the String path between <source> and the file
+      #   +name+ is the String filename of the file
+      #   +preset+ is the Preset hash from the config.
+      #
+      # Returns <GeneratedImageFile>
+      def initialize(site, base, dir, name, preset)
+        @site = site
+        @base = base
+        @dir  = dir
+        @name = name
+        @dst_dir = preset.delete('destination')
+        @src_dir = preset.delete('source')
+        @commands = preset
+        @relative_path = File.join(*[@dir, @name].compact)
+        @extname = File.extname(@name)
+      end
+
+      # Obtains source file path by substituting the preset's source directory
+      # for the destination directory.
+      #
+      # Returns source file path.
+      def path
+        File.join(@base, @dir.sub(@dst_dir, @src_dir), @name)
+      end
+
+      # Use MiniMagick to create a derivative image at the destination
+      # specified (if the original is modified).
+      #   +dest+ is the String path to the destination dir
+      #
+      # Returns false if the file was not modified since last time (no-op).
+      def write(dest)
+        dest_path = destination(dest)
+
+        return false if File.exist? dest_path and !modified?
+        self.class.mtimes[path] = mtime
+
+        FileUtils.mkdir_p(File.dirname(dest_path))
+        image = ::MiniMagick::Image.open(path)
+        image.combine_options do |c|
+          @commands.each_pair do |command, arg|
+            c.send command, arg
+          end
+        end
+        image.write dest_path
+
+        true
+      end
+
+    end
+
+    class MiniMagickGenerator < Generator
+      safe true
+
+      # Find all image files in the source directories of the presets specified
+      # in the site config.  Add a GeneratedImageFile to the static_files stack
+      # for later processing.
+      def generate(site)
+        return unless site.config['mini_magick']
+
+        site.config['mini_magick'].each_pair do |name, preset|
+          Dir.chdir preset['source'] do
+           Dir.glob(File.join("**", "*.{png,jpg,jpeg,gif}")) do |source|
+              site.static_files << GeneratedImageFile.new(site, site.source, preset['destination'], source, preset.clone)
+             end
+          end
+        end
+      end
+    end
+
+  end
+end