pre-pane commands: closes GH issue #33

lib/tmuxinator/assets/sample.yml

@@ -8,12 +8,22 @@ rvm: 1.9.2@rails_project
 pre: sudo /etc/rc.d/mysqld start
 tabs:
   - editor:
+      pre: echo 'I get run in each pane.  Before each pane command!'
       layout: main-vertical
       panes:
         - vim
         - #empty, will just run plain bash
         - top
   - shell: git pull
+  - guard:
+      layout: tiled
+      pre:
+        - echo 'I get run in each pane.'
+        - echo 'Before each pane command!'
+      panes:
+        -
+        - #empty, will just run plain bash
+        -
   - database: rails db
   - server: rails s
   - logs: tail -f logs/development.log

lib/tmuxinator/assets/tmux_config.tmux

@@ -20,6 +20,7 @@ tmux <%= socket %> new-window -t <%= window(i+2) %> -n <%=s tab.name %>
 <%=    send_keys(tab.panes.shift, i+1) %>
 <%     tab.panes.each do |pane| %>
 tmux <%= socket %> splitw -t <%= window(i+1) %>
+<%=      send_keys(pane.pre, i+1) if pane.pre %>
 <%=      send_keys(pane, i+1) %>
 <%     end %>
 tmux <%= socket %> select-layout -t <%= window(i+1) %> <%=s tab.layout %>

lib/tmuxinator/config_writer.rb

@@ -67,6 +67,10 @@ module Tmuxinator
             build_command(pane)
           end
           t.layout = value["layout"]
+          str = ( ( value["pre"] if value["pre"] && value["pre"].kind_of?(Array) ) || ([value["pre"]] if value["pre"] && value["pre"].kind_of?(String)) || ['']).map do |cmds|
+            build_command(cmds, false)
+          end.join ' && '
+          t.pre = build_command(str)
         else
           t.command = build_command(value)
         end
@@ -91,12 +95,11 @@ module Tmuxinator
       "tmux #{socket} send-keys -t #{window(window_number)} #{s cmd} C-m"
     end
 
-    def build_command(value)
+    def build_command(value, rvm_prepend=true)
       commands = [value].flatten.compact.reject { |c| c.strip.empty? }
-      if @rvm
+      if @rvm && rvm_prepend
         commands.unshift "rvm use #{@rvm}"
       end
-
       commands.join ' && '
     end
   end

spec/tmuxinator_spec.rb

@@ -38,6 +38,7 @@ describe Tmuxinator::ConfigWriter do
     specify{ first_tab.name.should eql "editor" }
     specify{ first_tab.layout.should eql "main-vertical" }
     specify{ first_tab.panes.should be_an Array }
+    specify{ first_tab.pre.should eql "rvm use 1.9.2@rails_project && echo 'I get run in each pane.  Before each pane command!'" }
 
     it "should prepend each pane with the rvm string" do
       first_tab.panes.map{|p| p.split(/ && /)[0] }.should eql ["rvm use 1.9.2@rails_project"] * 3
@@ -50,5 +51,12 @@ describe Tmuxinator::ConfigWriter do
     let(:second_tab){ subject.tabs[1] }
     specify{ second_tab.name.should eql "shell" }
     specify{ second_tab.command.should eql "rvm use 1.9.2@rails_project && git pull"}
+
+    let(:third_tab){ subject.tabs[2] }
+    specify{ third_tab.should be_an OpenStruct }
+    specify{ third_tab.name.should eql "guard" }
+    specify{ third_tab.layout.should eql "tiled" }
+    specify{ third_tab.panes.should be_an Array }
+    specify{ third_tab.pre.should eql "rvm use 1.9.2@rails_project && echo 'I get run in each pane.' && echo 'Before each pane command!'"}
   end
 end