From 2aeeb1ff8714b70e543b09418d703816aac64684 Mon Sep 17 00:00:00 2001
From: uu59 <k@uu59.org>
Date: Wed, 5 Nov 2014 13:11:23 +0900
Subject: [PATCH 1/3] Add dep:list task to help packaging td-agent-ui

---
 lib/tasks/dep.rake | 48 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 lib/tasks/dep.rake

diff --git a/lib/tasks/dep.rake b/lib/tasks/dep.rake
new file mode 100644
index 0000000..652a9f7
--- /dev/null
+++ b/lib/tasks/dep.rake
@@ -0,0 +1,48 @@
+namespace :dep do
+  desc "list dependency gems order by less referenced"
+  task :list do
+    require "set"
+    deps = Set.new
+    context = false
+    current_parent  = false
+    versions = {
+      "bundler" => "1.7.4" # bundler version does not appear in Gemfile.lock
+    }
+    lock_file = ENV["GEMFILE_LOCK"] || "Gemfile.production.lock"
+    File.open(lock_file).each_line do |line|
+      # GEM
+      #   remote: https://rubygems.org/
+      #   specs:
+      #     foo_gem (0.1.2)
+      #       foo_dep1 (>= 1.0.0)
+      #       foo_dep2
+      #     bar_gem (1.2.1)
+      #       bar_dep1
+      #       ...
+      #   ...
+      if line == "  specs:\n"
+        context = true
+        next
+      end
+      gem_name = line[/[^ \n]+/, 0] # "    foo_gem (0.1.2)\n" => "foo_gem"
+      if line.match(/^ {4}[^ ]/)    # "    foo_gem (0.1.2)"
+        current_parent = gem_name
+        versions[current_parent] = line[/\((.*?)\)/, 1] # foobar (1.2.3) => 1.2.3
+        next
+      elsif line.match(/^ {6}[^ ]/) # "      foo_dep1 (>= 1.0.0)"
+        deps.add([current_parent, gem_name])
+      else
+        context = false
+      end
+    end
+    rank = {}
+    deps.to_a.each do |(parent, child)|
+      rank[parent] ||= 0
+      rank[child] ||= 0
+      rank[parent] += 1
+    end
+    rank.to_a.sort_by {|(name, score)| score }.each do |(name, score)|
+      puts %Q|download "#{name}", "#{versions[name]}"|
+    end
+  end
+end

From 467085af4055e5c4746ec4147ed3ac26045e454c Mon Sep 17 00:00:00 2001
From: uu59 <k@uu59.org>
Date: Wed, 5 Nov 2014 13:28:07 +0900
Subject: [PATCH 2/3] Ensure Gemfile.produciton.lock is up to date before
 processing

---
 lib/tasks/dep.rake | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/tasks/dep.rake b/lib/tasks/dep.rake
index 652a9f7..997130e 100644
--- a/lib/tasks/dep.rake
+++ b/lib/tasks/dep.rake
@@ -8,7 +8,10 @@ namespace :dep do
     versions = {
       "bundler" => "1.7.4" # bundler version does not appear in Gemfile.lock
     }
-    lock_file = ENV["GEMFILE_LOCK"] || "Gemfile.production.lock"
+    lock_file = "Gemfile.production.lock"
+    unless ENV["SKIP_BUNDLE_INSTALL"]
+      system("bundle install --gemfile Gemfile.production", out: STDERR) # ensure lock file is up to date
+    end
     File.open(lock_file).each_line do |line|
       # GEM
       #   remote: https://rubygems.org/

From 81225a288a1c8c2cf8b9d58572ac4bc7d33617f4 Mon Sep 17 00:00:00 2001
From: uu59 <k@uu59.org>
Date: Wed, 5 Nov 2014 13:46:07 +0900
Subject: [PATCH 3/3] Skip fluentd gem

---
 lib/tasks/dep.rake | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/tasks/dep.rake b/lib/tasks/dep.rake
index 997130e..d82c0c6 100644
--- a/lib/tasks/dep.rake
+++ b/lib/tasks/dep.rake
@@ -8,10 +8,12 @@ namespace :dep do
     versions = {
       "bundler" => "1.7.4" # bundler version does not appear in Gemfile.lock
     }
+    skip_gems = %w(fluentd)
     lock_file = "Gemfile.production.lock"
     unless ENV["SKIP_BUNDLE_INSTALL"]
       system("bundle install --gemfile Gemfile.production", out: STDERR) # ensure lock file is up to date
     end
+
     File.open(lock_file).each_line do |line|
       # GEM
       #   remote: https://rubygems.org/
@@ -29,10 +31,16 @@ namespace :dep do
       end
       gem_name = line[/[^ \n]+/, 0] # "    foo_gem (0.1.2)\n" => "foo_gem"
       if line.match(/^ {4}[^ ]/)    # "    foo_gem (0.1.2)"
+        if skip_gems.include?(gem_name)
+          current_parent = nil
+          next
+        end
         current_parent = gem_name
         versions[current_parent] = line[/\((.*?)\)/, 1] # foobar (1.2.3) => 1.2.3
         next
       elsif line.match(/^ {6}[^ ]/) # "      foo_dep1 (>= 1.0.0)"
+        next if skip_gems.include?(gem_name)
+        next if current_parent.blank?
         deps.add([current_parent, gem_name])
       else
         context = false