Allow g:arduino_dir to be manually specified

Author: stevearc

Diff for: autoload/arduino.vim

@@ -391,8 +391,14 @@ function! s:CacheLine(lines, varname)
 endfunction
 
 function! arduino#GetArduinoDir()
+  if exists('g:arduino_dir')
+    return g:arduino_dir
+  endif
   let arduino_cmd = arduino#FindExecutable('arduino')
   let arduino_dir = fnamemodify(arduino_cmd, ':h')
+  if !s:FileExists(arduino_dir . '/hardware/arduino/')
+    throw "Could not find arduino directory. Please set g:arduino_dir"
+  endif
   return arduino_dir
 endfunction
 

Diff for: doc/arduino.txt

@@ -40,6 +40,11 @@ The path to the 'arduino' command. By default it will use the
 'arduino-headless' script in the 'bin' directory, which looks for 'arduino' in
 your PATH and runs it inside Xvfb if it can. >
   let g:arduino_cmd = '/usr/share/local/arduino/arduino'
+<
+                                                             *'g:arduino_dir'*
+The path to your 'arduino' directory. Usually vim-arduino will be able to
+detect it, but if it cannot you can set the value manually.
+  let g:arduino_dir = '/usr/share/local/arduino'
 <
                                                              *'g:arduino_args'*
 Additional arguments that will be passed to the 'arduino' command during build

Diff for: doc/tags

@@ -2,6 +2,7 @@
 'g:arduino_auto_baud'	arduino.txt	/*'g:arduino_auto_baud'*
 'g:arduino_board'	arduino.txt	/*'g:arduino_board'*
 'g:arduino_cmd'	arduino.txt	/*'g:arduino_cmd'*
+'g:arduino_dir'	arduino.txt	/*'g:arduino_dir'*
 'g:arduino_programmer'	arduino.txt	/*'g:arduino_programmer'*
 'g:arduino_serial_baud'	arduino.txt	/*'g:arduino_serial_baud'*
 'g:arduino_serial_cmd'	arduino.txt	/*'g:arduino_serial_cmd'*