move method to module

lib/capistrano/tasks/sneakers.rake

+require 'lib/sneakers_helper'
+
 namespace :load do
   task :defaults do
     set :sneakers_default_hooks, true
@@ -39,11 +41,11 @@ namespace :sneakers do
   desc 'Quiet sneakers (stop processing new tasks)'
   task :quiet do
     on roles fetch(:sneakers_roles) do |role|
-      switch_user(role) do
+      SneakersHelper.switch_user(role) do
         if test("[ -d #{current_path} ]")
-          each_process_with_index(true) do |pid_file, idx|
-            if pid_file_exists?(pid_file) && process_exists?(pid_file)
-              quiet_sneakers(pid_file)
+          SneakersHelper.each_process_with_index(true) do |pid_file, idx|
+            if SneakersHelper.pid_file_exists?(pid_file) && SneakersHelper.process_exists?(pid_file)
+              SneakersHelper.quiet_sneakers(pid_file)
             end
           end
         end
@@ -54,11 +56,11 @@ namespace :sneakers do
   desc 'Stop sneakers'
   task :stop do
     on roles fetch(:sneakers_roles) do |role|
-      switch_user(role) do
+      SneakersHelper.switch_user(role) do
         if test("[ -d #{current_path} ]")
-          each_process_with_index(true) do |pid_file, idx|
-            if pid_file_exists?(pid_file) && process_exists?(pid_file)
-              stop_sneakers(pid_file)
+          SneakersHelper.each_process_with_index(true) do |pid_file, idx|
+            if SneakersHelper.pid_file_exists?(pid_file) && SneakersHelper.process_exists?(pid_file)
+              SneakersHelper.stop_sneakers(pid_file)
             end
           end
         end
@@ -69,10 +71,10 @@ namespace :sneakers do
   desc 'Start sneakers'
   task :start do
     on roles fetch(:sneakers_roles) do |role|
-      switch_user(role) do
-        each_process_with_index do |pid_file, idx|
-          unless pid_file_exists?(pid_file) && process_exists?(pid_file)
-            start_sneakers(pid_file, idx)
+      SneakersHelper.switch_user(role) do
+        SneakersHelper.each_process_with_index do |pid_file, idx|
+          unless SneakersHelper.pid_file_exists?(pid_file) && SneakersHelper.process_exists?(pid_file)
+            SneakersHelper.start_sneakers(pid_file, idx)
           end
         end
       end
@@ -91,12 +93,12 @@ namespace :sneakers do
   desc 'Rolling-restart sneakers'
   task :rolling_restart do
     on roles fetch(:sneakers_roles) do |role|
-      switch_user(role) do
-        each_process_with_index(true) do |pid_file, idx|
-          if pid_file_exists?(pid_file) && process_exists?(pid_file)
-            stop_sneakers(pid_file)
+      SneakersHelper.switch_user(role) do
+        SneakersHelper.each_process_with_index(true) do |pid_file, idx|
+          if SneakersHelper.pid_file_exists?(pid_file) && SneakersHelper.process_exists?(pid_file)
+            SneakersHelper.stop_sneakers(pid_file)
           end
-          start_sneakers(pid_file, idx)
+          SneakersHelper.start_sneakers(pid_file, idx)
         end
       end
     end
@@ -105,10 +107,10 @@ namespace :sneakers do
   # Delete any pid file not in use
   task :cleanup do
     on roles fetch(:sneakers_roles) do |role|
-      switch_user(role) do
-        each_process_with_index do |pid_file, idx|
-          unless process_exists?(pid_file)
-            if pid_file_exists?(pid_file)
+      SneakersHelper.switch_user(role) do
+        SneakersHelper.each_process_with_index do |pid_file, idx|
+          unless SneakersHelper.process_exists?(pid_file)
+            if SneakersHelper.pid_file_exists?(pid_file)
               execute "rm #{pid_file}"
             end
           end
@@ -122,104 +124,13 @@ namespace :sneakers do
   task :respawn do
     invoke 'sneakers:cleanup'
     on roles fetch(:sneakers_roles) do |role|
-      switch_user(role) do
-        each_process_with_index do |pid_file, idx|
-          unless pid_file_exists?(pid_file)
-            start_sneakers(pid_file, idx)
+      SneakersHelper.switch_user(role) do
+        SneakersHelper.each_process_with_index do |pid_file, idx|
+          unless SneakersHelper.pid_file_exists?(pid_file)
+            SneakersHelper.start_sneakers(pid_file, idx)
           end
         end
       end
     end
   end
-
-  def each_process_with_index(reverse = false, &block)
-    _pid_files = pid_files
-    _pid_files.reverse! if reverse
-    _pid_files.each_with_index do |pid_file, idx|
-      within release_path do
-        yield(pid_file, idx)
-      end
-    end
-  end
-
-  def pid_files
-    sneakers_roles = Array(fetch(:sneakers_roles))
-    sneakers_roles.select! { |role| host.roles.include?(role) }
-    sneakers_roles.flat_map do |role|
-      processes = fetch(:sneakers_processes)
-      if processes == 1
-        fetch(:sneakers_pid)
-      else
-        Array.new(processes) { |idx| fetch(:sneakers_pid).gsub(/\.pid$/, "-#{idx}.pid") }
-      end
-    end
-  end
-
-  def pid_file_exists?(pid_file)
-    test(*("[ -f #{pid_file} ]").split(' '))
-  end
-
-  def process_exists?(pid_file)
-    test(*("kill -0 $( cat #{pid_file} )").split(' '))
-  end
-
-  def quiet_sneakers(pid_file)
-    if fetch(:sneakers_use_signals) || fetch(:sneakers_run_config)
-      execute :kill, "-USR1 `cat #{pid_file}`"
-    else
-      begin
-        execute :bundle, :exec, :sneakersctl, 'quiet', "#{pid_file}"
-      rescue SSHKit::Command::Failed
-        # If gems are not installed eq(first deploy) and sneakers_default_hooks as active
-        warn 'sneakersctl not found (ignore if this is the first deploy)'
-      end
-    end
-  end
-
-  def stop_sneakers(pid_file)
-    if fetch(:sneakers_run_config) == true
-      execute :kill, "-SIGTERM `cat #{pid_file}`"
-    else
-      if fetch(:stop_sneakers_in_background, fetch(:sneakers_run_in_background))
-        if fetch(:sneakers_use_signals)
-          background :kill, "-TERM `cat #{pid_file}`"
-        else
-          background :bundle, :exec, :sneakersctl, 'stop', "#{pid_file}", fetch(:sneakers_timeout)
-        end
-      else
-        execute :bundle, :exec, :sneakersctl, 'stop', "#{pid_file}", fetch(:sneakers_timeout)
-      end
-    end
-  end
-
-  def start_sneakers(pid_file, idx = 0)
-    if fetch(:sneakers_run_config) == true
-      # Use sneakers configuration prebuilt in
-      raise "[ set :workers, ['worker1', 'workerN'] ] not configured properly, please configure the workers you wish to use" if fetch(:sneakers_workers).nil? or fetch(:sneakers_workers) == false or !fetch(:sneakers_workers).kind_of? Array
-
-      workers = fetch(:sneakers_workers).compact.join(',')
-
-      info "Starting the sneakers processes"
-
-      with rails_env: fetch(:sneakers_env), workers: workers do
-        rake 'sneakers:run'
-      end
-    end
-  end
-
-  def switch_user(role, &block)
-    user = sneakers_user(role)
-    if user == role.user
-      block.call
-    else
-      as user do
-        block.call
-      end
-    end
-  end
-
-  def sneakers_user(role)
-    properties = role.properties
-    properties.fetch(:sneakers_user) || fetch(:sneakers_user) || properties.fetch(:run_as) || role.user
-  end
 end

lib/sneakers_helper.rb

+module SneakersHelper
+  def self.each_process_with_index(reverse = false, &block)
+    _pid_files = pid_files
+    _pid_files.reverse! if reverse
+    _pid_files.each_with_index do |pid_file, idx|
+      within release_path do
+        yield(pid_file, idx)
+      end
+    end
+  end
+
+  def self.pid_files
+    sneakers_roles = Array(fetch(:sneakers_roles))
+    sneakers_roles.select! { |role| host.roles.include?(role) }
+    sneakers_roles.flat_map do |role|
+      processes = fetch(:sneakers_processes)
+      if processes == 1
+        fetch(:sneakers_pid)
+      else
+        Array.new(processes) { |idx| fetch(:sneakers_pid).gsub(/\.pid$/, "-#{idx}.pid") }
+      end
+    end
+  end
+
+  def self.pid_file_exists?(pid_file)
+    test(*("[ -f #{pid_file} ]").split(' '))
+  end
+
+  def self.process_exists?(pid_file)
+    test(*("kill -0 $( cat #{pid_file} )").split(' '))
+  end
+
+  def self.quiet_sneakers(pid_file)
+    if fetch(:sneakers_use_signals) || fetch(:sneakers_run_config)
+      execute :kill, "-USR1 `cat #{pid_file}`"
+    else
+      begin
+        execute :bundle, :exec, :sneakersctl, 'quiet', "#{pid_file}"
+      rescue SSHKit::Command::Failed
+        # If gems are not installed eq(first deploy) and sneakers_default_hooks as active
+        warn 'sneakersctl not found (ignore if this is the first deploy)'
+      end
+    end
+  end
+
+  def self.stop_sneakers(pid_file)
+    if fetch(:sneakers_run_config) == true
+      execute :kill, "-SIGTERM `cat #{pid_file}`"
+    else
+      if fetch(:stop_sneakers_in_background, fetch(:sneakers_run_in_background))
+        if fetch(:sneakers_use_signals)
+          background :kill, "-TERM `cat #{pid_file}`"
+        else
+          background :bundle, :exec, :sneakersctl, 'stop', "#{pid_file}", fetch(:sneakers_timeout)
+        end
+      else
+        execute :bundle, :exec, :sneakersctl, 'stop', "#{pid_file}", fetch(:sneakers_timeout)
+      end
+    end
+  end
+
+  def self.start_sneakers(pid_file, idx = 0)
+    if fetch(:sneakers_run_config) == true
+      # Use sneakers configuration prebuilt in
+      raise "[ set :workers, ['worker1', 'workerN'] ] not configured properly, please configure the workers you wish to use" if fetch(:sneakers_workers).nil? or fetch(:sneakers_workers) == false or !fetch(:sneakers_workers).kind_of? Array
+
+      workers = fetch(:sneakers_workers).compact.join(',')
+
+      info "Starting the sneakers processes"
+
+      with rails_env: fetch(:sneakers_env), workers: workers do
+        rake 'sneakers:run'
+      end
+    end
+  end
+
+  def self.switch_user(role, &block)
+    user = sneakers_user(role)
+    if user == role.user
+      block.call
+    else
+      as user do
+        block.call
+      end
+    end
+  end
+
+  def self.sneakers_user(role)
+    properties = role.properties
+    properties.fetch(:sneakers_user) || fetch(:sneakers_user) || properties.fetch(:run_as) || role.user
+  end
+end