From: Rafael dos Santos Silva <xfalcox@gmail.com>
Date: Tue, 18 Oct 2016 23:01:46 +0000 (-0200)
Subject: Use new docker squash
X-Git-Url: https://vcs.fsf.org/?a=commitdiff_plain;h=1959166bc073d1c275939cc9ef4ca70e08d88a61;p=discourse_docker.git

Use new docker squash
---

diff --git a/image/build.rb b/image/build.rb
index 44a9fb6..8069d5b 100644
--- a/image/build.rb
+++ b/image/build.rb
@@ -2,9 +2,9 @@
 #
 require 'pty'
 
-$version = "1.3.6"
+$version = "1.3.7"
 
-$docker_squash = "https://github.com/jwilder/docker-squash/releases/download/v0.2.0/docker-squash-linux-amd64-v0.2.0.tar.gz"
+$docker_squash = "https://github.com/goldmann/docker-squash/archive/master.zip"
 
 $base_image = "discourse/base:#{$version}"
 $image = "discourse/discourse:#{$version}"
@@ -32,23 +32,26 @@ def run(command)
 end
 
 def ensure_docker_squash
-  return if File.exist?("docker-squash")
-  run ("wget #{$docker_squash}")
-  run ("tar -xzvf *.tar.gz")
-  run ("rm -f docker-squash-linux*")
+  run ("pip install --user #{$docker_squash}")
 end
 
 ensure_docker_squash
 
-def build(path, tag, is_base)
+def build(path, tag, layers_to_keep = nil)
   lines = run("cd #{path} && docker build .")
   img = lines[-1]["successfully built ".length..-1].strip
-
-  run("docker save #{img} | ./docker-squash -t #{tag} -verbose #{is_base && "-from root"} | docker load")
+  layers_to_squash = run("docker history #{img} | wc -l").first.to_i - (1 + layers_to_keep) if layers_to_keep
+  if layers_to_keep != nil
+    puts "docker-squash -t #{tag} --verbose -f #{layers_to_squash} #{img}"
+    run("docker-squash -t #{tag} --verbose -f #{layers_to_squash} #{img}")
+  else
+    puts "docker-squash -t #{tag} --verbose #{img}"
+    run("docker-squash -t #{tag} --verbose #{img}")
+  end
 end
 
 run "(cd base && ./download_phantomjs)"
 
-build("base",$base_image,true)
-build("discourse",$image,false)
-build("discourse_test",$test,false)
+build("base",$base_image)
+build("discourse",$image,1)
+build("discourse_test",$test,2)