From 511718e97397e64b6a813229394e1a9acb0c5e71 Mon Sep 17 00:00:00 2001
From: Ufuk Kayserilioglu <ufuk@paralaus.com>
Date: Mon, 16 Mar 2015 14:55:18 +0200
Subject: [PATCH] Add digest to theme images to not keep rebuilding them

The digest is based on the colors of theme, so will change when the colors change
---
 lib/screenshot.rb                             |  28 +++++++++++++-----
 lib/screenshot_generator.rb                   |   2 +-
 ...gine-78c77bed831d7972c590f9bd03e152d8.png} | Bin 13422 -> 13422 bytes
 ...dark-75cab375f85855ef921fb80f9a061782.png} | Bin 13127 -> 13127 bytes
 ...ight-a46cf66777c2c54503e63b00d9082f43.png} | Bin 13000 -> 13000 bytes
 ...ight-71ae07518174786bfe2fb9ab5a9e83ba.png} | Bin 12895 -> 12895 bytes
 ...mint-2fddb05d1683177eb4fb68ee4120e5e7.png} | Bin 13408 -> 13408 bytes
 ...trus-aabf89160991190ec0315e2a39ea76fa.png} | Bin 12730 -> 12730 bytes
 ...cean-e2d1eca6db4cc8a78abcfce1ebf50f5e.png} | Bin 12993 -> 12993 bytes
 ...hoth-974a7d725a04044a85c116f730e221b0.png} | Bin 13156 -> 13156 bytes
 ..._bar-d19b30d5e993056af7bf8fd82ff84ccd.png} | Bin 12463 -> 12463 bytes
 ...okai-00cd3d1eebb53928d87e47b0e9239b51.png} | Bin 13171 -> 13171 bytes
 ...ment-7c8301d46a6d99fd5136c0ecbd55f631.png} | Bin 13107 -> 13107 bytes
 ...chin-bb801cd911b4e1f3f0f951dce01805d7.png} | Bin 13447 -> 13447 bytes
 ...ized-3c81e712d0f0721fb6664f3946d5f15b.png} | Bin 12834 -> 12834 bytes
 ...dark-5a4cc5f4d03c3c1e33846234f789fb95.png} | Bin 13472 -> 13472 bytes
 ...dian-cab221058b73795c923679a2f3b3e6ad.png} | Bin 12513 -> 12513 bytes
 ...rast-e6e00e4c82364b53023d3b5fda330476.png} | Bin 12233 -> 12233 bytes
 ...raze-e8ab77731821d3102c28ccefd6a10cd7.png} | Bin 10494 -> 10494 bytes
 ...tron-b10d94434b0d041f447eb08564007304.png} | Bin 13015 -> 13015 bytes
 ...mein-38d4677962273b78f31b9a573890be96.png} | Bin 12851 -> 12851 bytes
 ...gman-9fa5565d625a1e75be23738d64e056c2.png} | Bin 13005 -> 13005 bytes
 ...hard-c12b3ea651f9389a50450ce93c2dba97.png} | Bin 13259 -> 13259 bytes
 source/index.html.erb                         |   3 +-
 24 files changed, 23 insertions(+), 10 deletions(-)
 rename source/images/theme/{aubergine.png => aubergine-78c77bed831d7972c590f9bd03e152d8.png} (99%)
 rename source/images/theme/{base16_eighties_dark.png => base16_eighties_dark-75cab375f85855ef921fb80f9a061782.png} (99%)
 rename source/images/theme/{base16_eighties_light.png => base16_eighties_light-a46cf66777c2c54503e63b00d9082f43.png} (99%)
 rename source/images/theme/{base16_tomorrow_night.png => base16_tomorrow_night-71ae07518174786bfe2fb9ab5a9e83ba.png} (99%)
 rename source/images/theme/{choco_mint.png => choco_mint-2fddb05d1683177eb4fb68ee4120e5e7.png} (99%)
 rename source/images/theme/{citrus.png => citrus-aabf89160991190ec0315e2a39ea76fa.png} (99%)
 rename source/images/theme/{digitalocean.png => digitalocean-e2d1eca6db4cc8a78abcfce1ebf50f5e.png} (99%)
 rename source/images/theme/{hoth.png => hoth-974a7d725a04044a85c116f730e221b0.png} (99%)
 rename source/images/theme/{juice_bar.png => juice_bar-d19b30d5e993056af7bf8fd82ff84ccd.png} (99%)
 rename source/images/theme/{monokai.png => monokai-00cd3d1eebb53928d87e47b0e9239b51.png} (99%)
 rename source/images/theme/{monument.png => monument-7c8301d46a6d99fd5136c0ecbd55f631.png} (99%)
 rename source/images/theme/{ochin.png => ochin-bb801cd911b4e1f3f0f951dce01805d7.png} (99%)
 rename source/images/theme/{solarized.png => solarized-3c81e712d0f0721fb6664f3946d5f15b.png} (99%)
 rename source/images/theme/{solarized_dark.png => solarized_dark-5a4cc5f4d03c3c1e33846234f789fb95.png} (99%)
 rename source/images/theme/{son_of_obsidian.png => son_of_obsidian-cab221058b73795c923679a2f3b3e6ad.png} (99%)
 rename source/images/theme/{stark_contrast.png => stark_contrast-e6e00e4c82364b53023d3b5fda330476.png} (99%)
 rename source/images/theme/{summer_craze.png => summer_craze-e8ab77731821d3102c28ccefd6a10cd7.png} (99%)
 rename source/images/theme/{tron.png => tron-b10d94434b0d041f447eb08564007304.png} (99%)
 rename source/images/theme/{wamein.png => wamein-38d4677962273b78f31b9a573890be96.png} (99%)
 rename source/images/theme/{wegman.png => wegman-9fa5565d625a1e75be23738d64e056c2.png} (99%)
 rename source/images/theme/{work_hard.png => work_hard-c12b3ea651f9389a50450ce93c2dba97.png} (99%)

diff --git a/lib/screenshot.rb b/lib/screenshot.rb
index bde61ec..f3ec439 100644
--- a/lib/screenshot.rb
+++ b/lib/screenshot.rb
@@ -5,7 +5,7 @@ require 'mini_magick'
 
 class Screenshot
   include Capybara::DSL
-  attr_accessor :theme, :theme_name
+  attr_accessor :theme
 
   def self.prepare
     Capybara.register_driver :poltergeist do |app|
@@ -19,30 +19,42 @@ class Screenshot
     end
   end
 
-  def initialize(theme_name)
-    @theme_name = theme_name
-    @theme = theme_name.parameterize.underscore
+  def initialize(theme)
+    @theme = OpenStruct.new(theme.merge(
+      slug: theme[:name].parameterize.underscore,
+      digest: Digest::MD5.new.hexdigest(theme[:colors])
+    ))
   end
 
   def generate_theme_image
-    puts "Generating image for theme #{theme_name}"
+    if File.exist? target_file
+      puts "Image for theme #{theme.name} already exists"
+      return
+    end
+
+    puts "Generating image for theme #{theme.name}"
     visit '/'
-    within ".theme_#{theme}" do
+    within ".theme_#{theme.slug}" do
       choose 'sidebar_theme_rd'
     end
     sleep 1
-    file = Tempfile.new([theme, ".png"])
+
+    file = Tempfile.new([theme.slug, ".png"])
     begin
       page.save_screenshot(file.path, full: true)
 
       MiniMagick::Tool::Convert.new do |convert|
         convert << file.path
         convert.crop '220x220+0+0'
-        convert << "source/images/theme/#{theme}.png"
+        convert << target_file
       end
     ensure
       file.close
       file.unlink
     end
   end
+
+  def target_file
+    "source/images/theme/#{theme.slug}-#{theme.digest}.png"
+  end
 end
\ No newline at end of file
diff --git a/lib/screenshot_generator.rb b/lib/screenshot_generator.rb
index cb64691..5d17356 100644
--- a/lib/screenshot_generator.rb
+++ b/lib/screenshot_generator.rb
@@ -9,7 +9,7 @@ class ScreenshotGenerator < ::Middleman::Extension
       Screenshot.prepare
       data = YAML.load_file('data/themes.yml')
       data.each do |theme|
-        Screenshot.new(theme[:name]).generate_theme_image
+        Screenshot.new(theme).generate_theme_image
       end
       puts "Hello World"
       # builder.run './my_deploy_script.sh'
diff --git a/source/images/theme/aubergine.png b/source/images/theme/aubergine-78c77bed831d7972c590f9bd03e152d8.png
similarity index 99%
rename from source/images/theme/aubergine.png
rename to source/images/theme/aubergine-78c77bed831d7972c590f9bd03e152d8.png
index 64cca93db4e732f5133d8ba44ddb8bcf25ece97f..fd98984c160d06d2b5dd3cec56663ed04443510b 100644
GIT binary patch
delta 55
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AqW}N^

delta 55
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diff --git a/source/images/theme/base16_eighties_dark.png b/source/images/theme/base16_eighties_dark-75cab375f85855ef921fb80f9a061782.png
similarity index 99%
rename from source/images/theme/base16_eighties_dark.png
rename to source/images/theme/base16_eighties_dark-75cab375f85855ef921fb80f9a061782.png
index 2fda5dc2182e2c064b7b6e122f69b0037f598193..ac5935d86bd06cb88e8a68d62b5d7182704c87c7 100644
GIT binary patch
delta 55
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delta 55
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diff --git a/source/images/theme/base16_eighties_light.png b/source/images/theme/base16_eighties_light-a46cf66777c2c54503e63b00d9082f43.png
similarity index 99%
rename from source/images/theme/base16_eighties_light.png
rename to source/images/theme/base16_eighties_light-a46cf66777c2c54503e63b00d9082f43.png
index 4da15289f0cf3a051dda23a53674a91a33e65297..f7d133941bb21b5ba691ebcd62e44c85143a1d83 100644
GIT binary patch
delta 55
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delta 55
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diff --git a/source/images/theme/base16_tomorrow_night.png b/source/images/theme/base16_tomorrow_night-71ae07518174786bfe2fb9ab5a9e83ba.png
similarity index 99%
rename from source/images/theme/base16_tomorrow_night.png
rename to source/images/theme/base16_tomorrow_night-71ae07518174786bfe2fb9ab5a9e83ba.png
index f8128b12f788903f559abf288f907fec2c04a0af..8b6378becfe624f65850372d7122e8fa7d16f5e7 100644
GIT binary patch
delta 55
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delta 55
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diff --git a/source/images/theme/choco_mint.png b/source/images/theme/choco_mint-2fddb05d1683177eb4fb68ee4120e5e7.png
similarity index 99%
rename from source/images/theme/choco_mint.png
rename to source/images/theme/choco_mint-2fddb05d1683177eb4fb68ee4120e5e7.png
index 93e2fc3105758d89f03da1cf3ca7ef1d64794c88..8c8d4ed01a6ea375dbcbfe5d15b6bbec97cd6ef4 100644
GIT binary patch
delta 55
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delta 55
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diff --git a/source/images/theme/citrus.png b/source/images/theme/citrus-aabf89160991190ec0315e2a39ea76fa.png
similarity index 99%
rename from source/images/theme/citrus.png
rename to source/images/theme/citrus-aabf89160991190ec0315e2a39ea76fa.png
index ed131faa4ea94a7600305cfa0e584907dcf0115c..c0ba8aff99c383b9f30a904e6da6c25c14102c68 100644
GIT binary patch
delta 55
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delta 55
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diff --git a/source/images/theme/digitalocean.png b/source/images/theme/digitalocean-e2d1eca6db4cc8a78abcfce1ebf50f5e.png
similarity index 99%
rename from source/images/theme/digitalocean.png
rename to source/images/theme/digitalocean-e2d1eca6db4cc8a78abcfce1ebf50f5e.png
index a0308a7e022c0a921fad90eb4d1c06849be28bc8..a23e310c0b60e7f93b8f3cb9f401a1e666939c11 100644
GIT binary patch
delta 55
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delta 55
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diff --git a/source/images/theme/hoth.png b/source/images/theme/hoth-974a7d725a04044a85c116f730e221b0.png
similarity index 99%
rename from source/images/theme/hoth.png
rename to source/images/theme/hoth-974a7d725a04044a85c116f730e221b0.png
index c1e6e2e73a9774d87bce3f86de6fbe30ec58ddcd..60dae81afbb43d13f610a2ab1bd31e854fb36937 100644
GIT binary patch
delta 55
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delta 55
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diff --git a/source/images/theme/juice_bar.png b/source/images/theme/juice_bar-d19b30d5e993056af7bf8fd82ff84ccd.png
similarity index 99%
rename from source/images/theme/juice_bar.png
rename to source/images/theme/juice_bar-d19b30d5e993056af7bf8fd82ff84ccd.png
index 324788093975b4e08ceb75692d5e36412cb40830..82684d494cd7a872a4889a17974f98fc2187720a 100644
GIT binary patch
delta 55
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delta 55
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diff --git a/source/images/theme/monokai.png b/source/images/theme/monokai-00cd3d1eebb53928d87e47b0e9239b51.png
similarity index 99%
rename from source/images/theme/monokai.png
rename to source/images/theme/monokai-00cd3d1eebb53928d87e47b0e9239b51.png
index ecc0eda0403adc064bb980ec75c52ccc5d7851a6..c87277558c67f7bc9dae8568b69394690ee20f79 100644
GIT binary patch
delta 55
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delta 55
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diff --git a/source/images/theme/monument.png b/source/images/theme/monument-7c8301d46a6d99fd5136c0ecbd55f631.png
similarity index 99%
rename from source/images/theme/monument.png
rename to source/images/theme/monument-7c8301d46a6d99fd5136c0ecbd55f631.png
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GIT binary patch
delta 55
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delta 55
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diff --git a/source/images/theme/ochin.png b/source/images/theme/ochin-bb801cd911b4e1f3f0f951dce01805d7.png
similarity index 99%
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rename to source/images/theme/ochin-bb801cd911b4e1f3f0f951dce01805d7.png
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delta 55
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delta 55
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diff --git a/source/images/theme/solarized.png b/source/images/theme/solarized-3c81e712d0f0721fb6664f3946d5f15b.png
similarity index 99%
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rename to source/images/theme/solarized-3c81e712d0f0721fb6664f3946d5f15b.png
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GIT binary patch
delta 55
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delta 55
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diff --git a/source/images/theme/solarized_dark.png b/source/images/theme/solarized_dark-5a4cc5f4d03c3c1e33846234f789fb95.png
similarity index 99%
rename from source/images/theme/solarized_dark.png
rename to source/images/theme/solarized_dark-5a4cc5f4d03c3c1e33846234f789fb95.png
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GIT binary patch
delta 55
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delta 55
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diff --git a/source/images/theme/son_of_obsidian.png b/source/images/theme/son_of_obsidian-cab221058b73795c923679a2f3b3e6ad.png
similarity index 99%
rename from source/images/theme/son_of_obsidian.png
rename to source/images/theme/son_of_obsidian-cab221058b73795c923679a2f3b3e6ad.png
index d92983106f1d649c66d660d654c9b799cc074a27..52c738c2a288ea0cb51236a803d7bdae65faba5f 100644
GIT binary patch
delta 55
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delta 55
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diff --git a/source/images/theme/stark_contrast.png b/source/images/theme/stark_contrast-e6e00e4c82364b53023d3b5fda330476.png
similarity index 99%
rename from source/images/theme/stark_contrast.png
rename to source/images/theme/stark_contrast-e6e00e4c82364b53023d3b5fda330476.png
index 07c0caa4c1e1817e43596feb363cbc374d1b1566..3e112ae6ce68a4448e9e2b84853dbea8dc88bb86 100644
GIT binary patch
delta 55
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delta 55
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diff --git a/source/images/theme/summer_craze.png b/source/images/theme/summer_craze-e8ab77731821d3102c28ccefd6a10cd7.png
similarity index 99%
rename from source/images/theme/summer_craze.png
rename to source/images/theme/summer_craze-e8ab77731821d3102c28ccefd6a10cd7.png
index 4119db0c280883a23842fa4998698b2e48fefa87..5c54c1b5cb34375a392806ef925c66ea811eb2b6 100644
GIT binary patch
delta 55
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delta 55
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diff --git a/source/images/theme/tron.png b/source/images/theme/tron-b10d94434b0d041f447eb08564007304.png
similarity index 99%
rename from source/images/theme/tron.png
rename to source/images/theme/tron-b10d94434b0d041f447eb08564007304.png
index 439c87f286b2ea5631d744dd5924c096b2e3e597..cc3b70074d65f9e2be74004eeec8bde6c45a20a4 100644
GIT binary patch
delta 55
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AMF0Q*

delta 55
zcmcbfdOdYRw-LXwxs{2bwt<nAfx!#i?J<*Q87WC4iOnqFf4~3)p00i_>zopr007w$
A0{{R3

diff --git a/source/images/theme/wamein.png b/source/images/theme/wamein-38d4677962273b78f31b9a573890be96.png
similarity index 99%
rename from source/images/theme/wamein.png
rename to source/images/theme/wamein-38d4677962273b78f31b9a573890be96.png
index 35d076a30828655a0665c59f04d7881db497b0a5..bd7d61ed65e4a597c57c48be01a080130428d04e 100644
GIT binary patch
delta 55
zcmdm-vN>hLb3=YpV=E(LZ381K1A~a>qo*f-GgOjB64Sg_Th0Ikp00i_>zopr02N9R
Au>b%7

delta 55
zcmdm-vN>hLb3=Y(b1M@gZ381K1B07K*B+ew%}_}iNo>Uo(OL!|@O1TaS?83{1OO{Q
B5-$J%

diff --git a/source/images/theme/wegman.png b/source/images/theme/wegman-9fa5565d625a1e75be23738d64e056c2.png
similarity index 99%
rename from source/images/theme/wegman.png
rename to source/images/theme/wegman-9fa5565d625a1e75be23738d64e056c2.png
index bf018342674e5f1ac6b4e58147d7948627a2e0c8..f454fc37b9f50821c4e7dcc157daba4c85e6b85d 100644
GIT binary patch
delta 55
zcmX?`dNy@KqY=NUv6YdDwt<nAfx%pr->#D<7%533iM^?G{>cCYp00i_>zopr0R1=-
ATL1t6

delta 55
zcmX?`dNy@KqY=Ncxs{2rwt<nAfkFMIWu=oR7%533iSfOcJIMe9p00i_>zopr0Q|NP
A?*IS*

diff --git a/source/images/theme/work_hard.png b/source/images/theme/work_hard-c12b3ea651f9389a50450ce93c2dba97.png
similarity index 99%
rename from source/images/theme/work_hard.png
rename to source/images/theme/work_hard-c12b3ea651f9389a50450ce93c2dba97.png
index c4ffb7a8d04577436cf5690d764dce8b89328687..f68b98ada6181d99124f7f828f346a752d5a2376 100644
GIT binary patch
delta 55
zcmX?|emZ?ay)nP3v6YdTwt<nAfdSX<S2>gWjFqI3#HybKU0?tLPgg&ebxsLQ0RA%(
ASpWb4

delta 55
zcmX?|emZ?ay)nPBxs{2jwt<nAfq_iYWdF&1#!AviV!8I(pBaF_)78&qol`;+0NWD}
A>i_@%

diff --git a/source/index.html.erb b/source/index.html.erb
index 1856c0b..cded4ae 100644
--- a/source/index.html.erb
+++ b/source/index.html.erb
@@ -4,8 +4,9 @@ title: Slack Themes
 
 <% data.themes.each do |theme| %>
 <% theme_slug = theme[:name].parameterize.underscore %>
+<% digest = Digest::MD5.new.hexdigest(theme[:colors]) %>
 <label class="radio theme_label theme_<%= theme[:name].parameterize.underscore %>">
-    <img src="/images/theme/<%= theme_slug %>.png" class="theme_thumb"><br>
+    <img src="/images/theme/<%= theme_slug %>-<%= digest %>.png" class="theme_thumb"><br>
     <input name="sidebar_theme_rd" type="radio" value="<%= theme[:colors] %>" ng-model="theme" ng-change="setTheme()"> <%= theme[:name] %>
 </label>
 <% end %>