0.9.2

Signed-off-by: David Dollar <ddollar@gmail.com>

.gitignore

@@ -1,3 +1,4 @@
+.bundle
 coverage
 example/log/*
 man/*.?

Gemfile

@@ -0,0 +1,17 @@
+source "http://rubygems.org"
+
+group :development do
+  gem 'parka'
+  gem 'rake'
+  gem 'ronn'
+end
+
+group :test do
+  gem 'fakefs', '~> 0.2.1'
+  gem 'rcov',   '~> 0.9.8'
+  gem 'rr',     '~> 1.0.2'
+  gem 'rspec',  '~> 2.0.0'
+end
+
+gem 'term-ansicolor', '~> 1.0.5'
+gem 'thor',           '~> 0.13.6'

Gemfile.lock

@@ -0,0 +1,45 @@
+GEM
+  remote: http://rubygems.org/
+  specs:
+    diff-lcs (1.1.2)
+    fakefs (0.2.1)
+    hpricot (0.8.2)
+    mime-types (1.16)
+    mustache (0.11.2)
+    parka (0.3.1)
+      rest-client
+      thor
+    rake (0.8.7)
+    rcov (0.9.8)
+    rdiscount (1.6.5)
+    rest-client (1.6.0)
+      mime-types (>= 1.16)
+    ronn (0.7.3)
+      hpricot (>= 0.8.2)
+      mustache (>= 0.7.0)
+      rdiscount (>= 1.5.8)
+    rr (1.0.2)
+    rspec (2.0.0.beta.19)
+      rspec-core (= 2.0.0.beta.19)
+      rspec-expectations (= 2.0.0.beta.19)
+      rspec-mocks (= 2.0.0.beta.19)
+    rspec-core (2.0.0.beta.19)
+    rspec-expectations (2.0.0.beta.19)
+      diff-lcs (>= 1.1.2)
+    rspec-mocks (2.0.0.beta.19)
+    term-ansicolor (1.0.5)
+    thor (0.13.8)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  fakefs (~> 0.2.1)
+  parka
+  rake
+  rcov (~> 0.9.8)
+  ronn
+  rr (~> 1.0.2)
+  rspec (~> 2.0.0)
+  term-ansicolor (~> 1.0.5)
+  thor (~> 0.13.6)

Rakefile

@@ -1,3 +1,7 @@
+require "rubygems"
+require "bundler"
+Bundler.setup
+
 require "rake"
 require "rspec"
 require "rspec/core/rake_task"
@@ -45,41 +49,3 @@ task :pages => :man do
     git checkout master
   }
 end
-
-######################################################
-
-begin
-  require 'jeweler'
-  Jeweler::Tasks.new do |s|
-    s.name    = "foreman"
-    s.version = Foreman::VERSION
-
-    s.summary     = "Process manager for applications with multiple components"
-    s.description = s.summary
-    s.author      = "David Dollar"
-    s.email       = "ddollar@gmail.com"
-    s.homepage    = "http://github.com/ddollar/foreman"
-
-    s.platform = Gem::Platform::RUBY
-    s.has_rdoc = false
-
-    s.files = %w(Rakefile README.md) + Dir["{bin,export,lib,spec}/**/*"]
-    s.require_path = "lib"
-
-    # #s.bindir             = "bin"
-    # s.executables        = Dir["bin/*"]
-    s.default_executable = "foreman"
-
-    s.add_development_dependency 'fakefs', '~> 0.2.1'
-    s.add_development_dependency 'rake',   '~> 0.8.7'
-    s.add_development_dependency 'rcov',   '~> 0.9.8'
-    s.add_development_dependency 'rr',     '~> 0.10.11'
-    s.add_development_dependency 'rspec',  '~> 2.0.0'
-
-    s.add_dependency 'term-ansicolor', '~> 1.0.5'
-    s.add_dependency 'thor', '~> 0.13.6'
-  end
-  Jeweler::GemcutterTasks.new
-rescue LoadError
-  puts "Jeweler not available. Install it with: sudo gem install jeweler"
-end

data/example/Procfile

@@ -0,0 +1,2 @@
+ticker ./ticker $PORT
+error  ./error

data/example/log/neverdie.log

@@ -0,0 +1,4 @@
+tick
+tick
+./never_die:6:in `sleep': Interrupt
+	from ./never_die:6

data/example/ticker

@@ -1,6 +1,6 @@
 #!/usr/bin/env ruby
 
 while true
-  puts "tick"
+  puts "tick: #{ARGV.inspect}"
   sleep 1
 end

data/export/upstart/process.conf.erb

@@ -3,4 +3,4 @@ stop on stopping <%= app %>-<%= process.name %>
 respawn
 
 chdir <%= engine.directory %>
-exec su <%= user %> -c "PORT=<%= port %> <%= process.command %> >> <%= log_root %>/<%=process.name%>-<%=num%>.log 2>&1"
+exec su - <%= user %> -c 'export PORT=<%= port %>; <%= process.command %> >> <%= log_root %>/<%=process.name%>-<%=num%>.log 2>&1'

example/Procfile

@@ -1,2 +0,0 @@
-ticker ./ticker
-error  ./error

foreman.gemspec

@@ -1,89 +1,12 @@
-# Generated by jeweler
+require "rubygems"
-# DO NOT EDIT THIS FILE DIRECTLY
+require "parka/specification"
-# Instead, edit Jeweler::Tasks in Rakefile, and run the gemspec command
-# -*- encoding: utf-8 -*-
 
-Gem::Specification.new do |s|
+Parka::Specification.new do |gem|
-  s.name = %q{foreman}
+  gem.name     = "foreman"
-  s.version = "0.7.0"
+  gem.version  = Foreman::VERSION
+  gem.summary  = "Process manager for applications with multiple components"
+  gem.homepage = "http://github.com/ddollar/foreman"
 
-  s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
+  gem.executables  = "foreman"
-  s.authors = ["David Dollar"]
+  gem.files       << "man/foreman.1"
-  s.date = %q{2010-07-19}
-  s.default_executable = %q{foreman}
-  s.description = %q{Process manager for applications with multiple components}
-  s.email = %q{ddollar@gmail.com}
-  s.executables = ["foreman"]
-  s.extra_rdoc_files = [
-    "README.markdown"
-  ]
-  s.files = [
-    "Rakefile",
-     "bin/foreman",
-     "export/upstart/master.conf.erb",
-     "export/upstart/process.conf.erb",
-     "export/upstart/process_master.conf.erb",
-     "lib/foreman.rb",
-     "lib/foreman/cli.rb",
-     "lib/foreman/engine.rb",
-     "lib/foreman/export.rb",
-     "lib/foreman/export/base.rb",
-     "lib/foreman/export/inittab.rb",
-     "lib/foreman/export/upstart.rb",
-     "lib/foreman/process.rb",
-     "lib/foreman/utils.rb",
-     "spec/foreman/cli_spec.rb",
-     "spec/foreman/engine_spec.rb",
-     "spec/foreman/export/upstart_spec.rb",
-     "spec/foreman/export_spec.rb",
-     "spec/foreman/process_spec.rb",
-     "spec/foreman_spec.rb",
-     "spec/spec_helper.rb"
-  ]
-  s.homepage = %q{http://github.com/ddollar/foreman}
-  s.rdoc_options = ["--charset=UTF-8"]
-  s.require_paths = ["lib"]
-  s.rubygems_version = %q{1.3.7}
-  s.summary = %q{Process manager for applications with multiple components}
-  s.test_files = [
-    "spec/foreman/cli_spec.rb",
-     "spec/foreman/engine_spec.rb",
-     "spec/foreman/export/upstart_spec.rb",
-     "spec/foreman/export_spec.rb",
-     "spec/foreman/process_spec.rb",
-     "spec/foreman_spec.rb",
-     "spec/spec_helper.rb"
-  ]
-
-  if s.respond_to? :specification_version then
-    current_version = Gem::Specification::CURRENT_SPECIFICATION_VERSION
-    s.specification_version = 3
-
-    if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
-      s.add_development_dependency(%q<fakefs>, ["~> 0.2.1"])
-      s.add_development_dependency(%q<rake>, ["~> 0.8.7"])
-      s.add_development_dependency(%q<rcov>, ["~> 0.9.8"])
-      s.add_development_dependency(%q<rr>, ["~> 0.10.11"])
-      s.add_development_dependency(%q<rspec>, ["~> 2.0.0"])
-      s.add_runtime_dependency(%q<term-ansicolor>, ["~> 1.0.5"])
-      s.add_runtime_dependency(%q<thor>, ["~> 0.13.6"])
-    else
-      s.add_dependency(%q<fakefs>, ["~> 0.2.1"])
-      s.add_dependency(%q<rake>, ["~> 0.8.7"])
-      s.add_dependency(%q<rcov>, ["~> 0.9.8"])
-      s.add_dependency(%q<rr>, ["~> 0.10.11"])
-      s.add_dependency(%q<rspec>, ["~> 2.0.0"])
-      s.add_dependency(%q<term-ansicolor>, ["~> 1.0.5"])
-      s.add_dependency(%q<thor>, ["~> 0.13.6"])
-    end
-  else
-    s.add_dependency(%q<fakefs>, ["~> 0.2.1"])
-    s.add_dependency(%q<rake>, ["~> 0.8.7"])
-    s.add_dependency(%q<rcov>, ["~> 0.9.8"])
-    s.add_dependency(%q<rr>, ["~> 0.10.11"])
-    s.add_dependency(%q<rspec>, ["~> 2.0.0"])
-    s.add_dependency(%q<term-ansicolor>, ["~> 1.0.5"])
-    s.add_dependency(%q<thor>, ["~> 0.13.6"])
-  end
 end
-

lib/foreman.rb

@@ -1,6 +1,6 @@
 module Foreman
 
-  VERSION = "0.7.0"
+  VERSION = "0.9.2"
 
   class AppDoesNotExist < Exception; end
 

lib/foreman/cli.rb

@@ -5,10 +5,11 @@ require "thor"
 
 class Foreman::CLI < Thor
 
-  class_option :procfile, :type => :string, :aliases => "-f", :desc => "Default: ./Procfile"
+  class_option :procfile, :type => :string, :aliases => "-f", :desc => "Default: Procfile"
 
   desc "start [PROCESS]", "Start the application, or a specific process"
 
+  method_option :port,        :type => :numeric, :aliases => "-p"
   method_option :concurrency, :type => :string,  :aliases => "-c",
     :banner => '"alpha=5,bar=3"'
 
@@ -49,7 +50,7 @@ class Foreman::CLI < Thor
 private ######################################################################
 
   def check_procfile!
-    error("Procfile does not exist.") unless File.exist?(procfile)
+    error("#{procfile} does not exist.") unless File.exist?(procfile)
   end
 
   def engine
@@ -57,7 +58,7 @@ private ######################################################################
   end
 
   def procfile
-    options[:procfile] || "./Procfile"
+    options[:procfile] || "Procfile"
   end
 
 private ######################################################################

lib/foreman/engine.rb

@@ -20,60 +20,73 @@ class Foreman::Engine
     @directory = File.expand_path(File.dirname(procfile))
   end
 
-  def processes(concurrency=nil)
+  def processes
     @processes ||= begin
-      concurrency = Foreman::Utils.parse_concurrency(concurrency)
+      @order = []
-
       procfile.split("\n").inject({}) do |hash, line|
         next if line.strip == ""
         name, command = line.split(" ", 2)
-
+        process = Foreman::Process.new(name, command)
-        if concurrency[name] > 1 then
+        process.color = next_color
-          1.upto(concurrency[name]) do |num|
+        @order << process.name
-            process = Foreman::Process.new("#{name}.#{num}", command)
+        hash.update(process.name => process)
-            process.color = next_color
-            hash[process.name] = process
-          end
-        else
-          process = Foreman::Process.new(name, command)
-          process.color = next_color
-          hash[process.name] = process
-        end
-
-        hash
       end
     end
   end
 
+  def process_order
+    processes
+    @order.uniq
+  end
+
+  def processes_in_order
+    process_order.map do |name|
+      [name, processes[name]]
+    end
+  end
+
   def start(options={})
     proctitle "ruby: foreman master"
 
-    processes(options[:concurrency]).each do |name, process|
+    processes_in_order.each do |name, process|
-      fork process
+      fork process, options
     end
 
-    trap("TERM") { kill_and_exit("TERM") }
+    trap("TERM") { puts "SIGTERM received"; kill_all("TERM") }
-    trap("INT")  { kill_and_exit("INT")  }
+    trap("INT")  { puts "SIGINT received";  kill_all("INT")  }
 
     watch_for_termination
   end
 
   def execute(name, options={})
-    processes(options[:concurrency]).values.select do |process|
+    fork processes[name], options
-      process.name =~ /\A#{name}\.?\d*\Z/
-    end.each do |process|
-      fork process
-    end
 
-    trap("TERM") { kill_and_exit("TERM") }
+    trap("TERM") { puts "SIGTERM received"; kill_all("TERM") }
-    trap("INT")  { kill_and_exit("INT")  }
+    trap("INT")  { puts "SIGINT received";  kill_all("INT")  }
 
     watch_for_termination
   end
 
+  def port_for(process, num, base_port=nil)
+    base_port ||= 5000
+    offset = processes_in_order.map { |p| p.first }.index(process.name) * 100
+    base_port.to_i + offset + num - 1
+  end
+
 private ######################################################################
 
-  def fork(process)
+  def fork(process, options={})
+    concurrency = Foreman::Utils.parse_concurrency(options[:concurrency])
+
+    1.upto(concurrency[process.name]) do |num|
+      fork_individual(process, num, port_for(process, num, options[:port]))
+    end
+  end
+
+  def fork_individual(process, num, port)
+    ENV["PORT"] = port.to_s
+    ENV["PS"]   = "#{process.name}.#{num}"
+
     pid = Process.fork do
       run(process)
     end
@@ -85,29 +98,31 @@ private ######################################################################
   def run(process, log_to_file=true)
     proctitle "ruby: foreman #{process.name}"
 
-    Dir.chdir directory do
+    begin
-      FileUtils.mkdir_p "log"
+      Dir.chdir directory do
-      command = process.command
+        FileUtils.mkdir_p "log"
+        command = process.command
 
-      begin
         PTY.spawn("#{process.command} 2>&1") do |stdin, stdout, pid|
           until stdin.eof?
             info stdin.gets, process
           end
         end
-      rescue PTY::ChildExited, Interrupt
+      end
+    rescue PTY::ChildExited, Interrupt
+      begin
         info "process exiting", process
+      rescue Interrupt
       end
     end
   end
 
-  def kill_and_exit(signal="TERM")
+  def kill_all(signal="TERM")
     info "terminating"
     running_processes.each do |pid, process|
       info "killing #{process.name} in pid #{pid}"
       Process.kill(signal, pid)
     end
-    exit 0
   end
 
   def info(message, process=nil)
@@ -127,8 +142,8 @@ private ######################################################################
   end
 
   def pad_process_name(process)
-    name = process ? process.name : "system"
+    name = process ? "#{ENV["PS"]}" : "system"
-    name.ljust(longest_process_name)
+    name.ljust(longest_process_name + 3) # add 3 for process number padding
   end
 
   def print_info
@@ -150,7 +165,8 @@ private ######################################################################
     pid, status = Process.wait2
     process = running_processes.delete(pid)
     info "process terminated", process
-    kill_and_exit
+    kill_all
+    Process.waitall
   end
 
   def running_processes

lib/foreman/export/base.rb

@@ -24,13 +24,7 @@ private ######################################################################
   end
 
   def export_template(name)
-    File.read(File.expand_path("../../../../export/#{name}", __FILE__))
+    File.read(File.expand_path("../../../../data/export/#{name}", __FILE__))
-  end
-
-  def port_for(base_port, app, num)
-    base_port ||= 5000
-    offset = engine.processes.keys.sort.index(app) * 100
-    base_port.to_i + offset + num - 1
   end
 
   def write_file(filename, contents)

lib/foreman/export/inittab.rb

@@ -7,7 +7,7 @@ class Foreman::Export::Inittab < Foreman::Export::Base
     user = options[:user] || app
     log_root = options[:log] || "/var/log/#{app}"
 
-    concurrency = parse_concurrency(options[:concurrency])
+    concurrency = Foreman::Utils.parse_concurrency(options[:concurrency])
 
     inittab = []
     inittab << "# ----- foreman #{app} processes -----"
@@ -15,7 +15,7 @@ class Foreman::Export::Inittab < Foreman::Export::Base
     engine.processes.values.inject(1) do |index, process|
       1.upto(concurrency[process.name]) do |num|
         id = app.slice(0, 2).upcase + sprintf("%02d", index)
-        port = port_for(options[:port], process.name, num)
+        port = engine.port_for(process, num, options[:port])
         inittab << "#{id}:4:respawn:/bin/su - #{user} -c 'PORT=#{port} #{process.command} >> #{log_root}/#{process.name}-#{num}.log 2>&1'"
         index += 1
       end
@@ -27,8 +27,8 @@ class Foreman::Export::Inittab < Foreman::Export::Base
     inittab = inittab.join("\n") + "\n"
 
     if fname
-      FileUtils.mkdir_p(log_root)
+      FileUtils.mkdir_p(log_root) rescue error "could not create #{log_root}"
-      FileUtils.chown(user, nil, log_root)
+      FileUtils.chown(user, nil, log_root) rescue error "could not chown #{log_root} to #{user}"
       write_file(fname, inittab)
     else
       puts inittab

lib/foreman/export/upstart.rb

@@ -17,7 +17,7 @@ class Foreman::Export::Upstart < Foreman::Export::Base
       FileUtils.rm(file)
     end
 
-    concurrency = parse_concurrency(options[:concurrency])
+    concurrency = Foreman::Utils.parse_concurrency(options[:concurrency])
 
     master_template = export_template("upstart/master.conf.erb")
     master_config   = ERB.new(master_template).result(binding)
@@ -31,7 +31,7 @@ class Foreman::Export::Upstart < Foreman::Export::Base
       write_file "#{location}/#{app}-#{process.name}.conf", process_master_config
 
       1.upto(concurrency[process.name]) do |num|
-        port = port_for(options[:port], process.name, num)
+        port = engine.port_for(process, num, options[:port])
         process_config = ERB.new(process_template).result(binding)
         write_file "#{location}/#{app}-#{process.name}-#{num}.conf", process_config
       end

man/foreman.1.ronn

@@ -1,4 +1,4 @@
-foreman(1) -- manage Procfile-based applications
+foreman(1) -- manage Psfile-based applications
 ================================================
 
 ## SYNOPSIS
@@ -8,8 +8,8 @@ foreman(1) -- manage Procfile-based applications
 
 ## DESCRIPTION
 
-**Foreman** is a manager for Procfile-based applications. Its aim is to
+**Foreman** is a manager for Psfile-based applications. Its aim is to
-abstract away the details of the Procfile format, and allow you to either run
+abstract away the details of the Psfile format, and allow you to either run
 your application directly or export it to some other process management
 format.
 
@@ -18,7 +18,7 @@ format.
 `foreman start` is used to run your application directly from the command line.
 
 If no additional parameters are passed, foreman will run one instance of each
-type of process defined in your Procfile.
+type of process defined in your Psfile.
 
 If a parameter is passed, foreman will run one instance of the specified
 application type.
@@ -29,6 +29,10 @@ The following options control how the application is run:
     Specify the number of each process type to run. The value passed in
     should be in the format `process=num,process=num`
 
+  * `-p`, `--port`:
+    Specify which port to use as the base for this application. Should be
+    a multiple of 1000.
+
 ## EXPORTING
 
 `foreman export` is used to export your application to another process
@@ -62,8 +66,8 @@ The following options control how the application is run:
 
 These options control all modes of foreman's operation.
 
-  * `-f`, `--procfile`:
+  * `-f`, `--psfile`:
-    Specify an alternate location for the application's Procfile. This file's
+    Specify an alternate location for the application's Psfile. This file's
     containing directory will be assumed to be the root directory of the
     application.
 
@@ -95,9 +99,9 @@ will be structured to make the following commands valid:
 
   `restart appname-processname-3`
 
-## PROCFILE
+## PSFILE
 
-A Procfile should contain both a name for the process and the command used
+A Psfile should contain both a name for the process and the command used
 to run it.
 
     web  bundle exec thin start
@@ -113,9 +117,9 @@ Export the application in upstart format:
 
     $ foreman export upstart /etc/init
 
-Run one process type from the application defined in a specific Procfile:
+Run one process type from the application defined in a specific Psfile:
 
-    $ foreman start alpha -p ~/app/Procfile
+    $ foreman start alpha -p ~/myapp/Psfile
 
 ## COPYRIGHT
 

spec/foreman/engine_spec.rb

@@ -23,17 +23,26 @@ describe "Foreman::Engine" do
   describe "start" do
     it "forks the processes" do
       write_procfile
-      mock(subject).fork(subject.processes["alpha"])
+      mock(subject).fork(subject.processes["alpha"], {})
-      mock(subject).fork(subject.processes["bravo"])
+      mock(subject).fork(subject.processes["bravo"], {})
       mock(subject).watch_for_termination
       subject.start
     end
+
+    it "handles concurrency" do
+      write_procfile
+      mock(subject).fork_individual(subject.processes["alpha"], 1, 5000)
+      mock(subject).fork_individual(subject.processes["alpha"], 2, 5001)
+      mock(subject).fork_individual(subject.processes["bravo"], 1, 5100)
+      mock(subject).watch_for_termination
+      subject.start(:concurrency => "alpha=2")
+    end
   end
 
   describe "execute" do
     it "runs the processes" do
       write_procfile
-      mock(subject).fork(subject.processes["alpha"])
+      mock(subject).fork(subject.processes["alpha"], {})
       mock(subject).watch_for_termination
       subject.execute("alpha")
     end