Merge pull request #340 from ldmosquera/set_env_var_with_process_name

Set FOREMAN_PROCESS_NAME env var for spawned procs

lib/foreman/engine.rb

@@ -302,6 +302,10 @@ private
 
   def name_for(pid)
     process, index = @running[pid]
+    name_for_index(process, index)
+  end
+
+  def name_for_index(process, index)
     [ @names[process], index.to_s ].compact.join(".")
   end
 
@@ -350,7 +354,8 @@ private
         reader, writer = create_pipe
         begin
           pid = process.run(:output => writer, :env => {
-            "PORT" => port_for(process, n).to_s
+            "PORT" => port_for(process, n).to_s,
+            "PS" => name_for_index(process, n)
           })
           writer.puts "started with pid #{pid}"
         rescue Errno::ENOENT

spec/foreman/cli_spec.rb

@@ -44,6 +44,13 @@ describe "Foreman::CLI", :fakefs do
           output.should =~ /test.1 \| testing/
         end
       end
+
+      it "sets PS variable with the process name" do
+        without_fakefs do
+          output = foreman("start -f #{resource_path("Procfile")}")
+          output.should =~ /ps.1   \| PS env var is ps.1/
+        end
+      end
     end
   end
 

spec/resources/Procfile

@@ -2,3 +2,4 @@ echo: bin/echo echoing
 env:  bin/env  FOO
 test: bin/test
 utf8: bin/utf8
+ps:   bin/echo PS env var is $PS