Some more fixes to make it work on the Raspi again

Gemfile

@@ -10,9 +10,9 @@ gem 'angular_rails_csrf'
 gem 'haml'
 
 source 'https://rails-assets.org' do
-  gem 'rails-assets-angular'
-  gem 'rails-assets-angular-route'
-  gem 'rails-assets-lazysizes'
+  gem 'rails-assets-angular', '1.4.5'
+  gem 'rails-assets-angular-route', '1.4.5'
+  gem 'rails-assets-lazysizes', '4.0.4'
 end
 
 gem 'uglifier', '>= 1.3.0'

config/unicorn.rb

@@ -1,4 +1,4 @@
 worker_processes 3
 timeout 60
 preload_app true
-listen '0.0.0.0:3000', tcp_nopush: true
+listen '0.0.0.0', tcp_nopush: true

lib/tasks/picture_set.rake

@@ -0,0 +1,60 @@
+require 'fileutils'
+
+namespace :picture_set do
+  COMBINED_SUFFIX = '_combined.jpg'.freeze
+
+  desc "Combine all images into one"
+  task :combine_images, [:path] => [:environment] do |task, args|
+    path = args[:path]
+    path = File.join(Rails.root, 'public', 'picture_sets') if path.blank?
+    puts "Using directory #{path}."
+    Dir.chdir(path) do
+      picture_sets = Dir.glob('*').select {|f| File.directory? f}
+      picture_sets.each do |date|
+        puts "Processing #{date}..."
+        combine_images(date, path)
+      end
+    end
+  end
+
+  desc "Remove combined images. Necessary before running combine_images task again."
+  task :clean_combine_images, [:path] => [:environment] do |task, args|
+    path = args[:path]
+    path = File.join(Rails.root, 'public', 'picture_sets') if path.blank?
+    puts "Using directory #{path}."
+    Dir.chdir(path) do
+      picture_sets = Dir.glob('*').select {|f| File.directory? f}
+      picture_sets.each do |date|
+        Dir.chdir(File.join(path, date)) do
+          FileUtils.rm("#{date}#{COMBINED_SUFFIX}", force: true)
+        end
+      end
+    end
+  end
+
+  desc "Copies all images into one directory (without the single polaroids)"
+  task :copy, [:path, :output] => [:environment] do |task, args|
+    path = args[:path]
+    path = File.join(Rails.root, 'public', 'picture_sets') if path.blank?
+    puts "Using directory #{path}."
+    Dir.chdir(path) do
+      picture_sets = Dir.glob('*').select {|f| File.directory?(f) && f != 'all'}
+      picture_sets.each do |date|
+        Syscall.execute("cp #{File.join(path, date, "*.jpg")} #{args[:output]}")
+        Syscall.execute("cp #{File.join(path, date, "*.gif")} #{args[:output]}")
+      rescue => e
+        puts e
+    end
+  end
+
+  def combine_images(date, path)
+  dir = File.join(path, date)
+  begin
+  Syscall.execute("time montage -geometry '25%x25%+25+25<' -background '#{OPTS.background_color}' " \
+    "-title '#{OPTS.image_caption}' -font '#{OPTS.font}' -fill '#{OPTS.font_color}' " \
+    "-pointsize #{OPTS.combined_image_fontsize} -gravity 'Center' #{date}_*.jpg #{date}#{COMBINED_SUFFIX}",
+    dir: dir)
+  rescue => e
+    puts "Can not process #{dir}: #{e}"
+  end
+end