Builder: Branch-specific custom options for CMake

The platform_release script now consults the Pilot to see which
branch is being used. This allows specifying different options per
branch, e.g., if the 3rd party dependencies have changed.

distrib/pilot.py

@@ -48,7 +48,8 @@ def homeDir():
     sys.path.append(homeDir())
     import pilotcfg
 except ImportError:
-    print """Configuration needed: pilotcfg.py must be created in ~/.pilot/
+    if __name__ == '__main__':
+        print """Configuration needed: pilotcfg.py must be created in ~/.pilot/
 
 pilotcfg.py contains information such as (global variables):
 - HOST: pilot server address (for clients)
@@ -61,7 +62,7 @@ def homeDir():
 
 The function 'postTaskHook(task)' can be defined for actions to be carried out 
 after a successful execution of a task."""
-    sys.exit(1)
+        sys.exit(1)
 
 APP_NAME = 'Doomsday Build Pilot'
 

distrib/platform_release.py

@@ -120,14 +120,19 @@ def output_filename(ext='', extra=''):
         return 'doomsday_' + extra + DOOMSDAY_VERSION_FULL + "_" + DOOMSDAY_BUILD + ext
 
 
+def cmake_options_path():
+    import pilot    
+    return 'cmake.%s.rsp' % pilot.currentBranch()
+
+
 def cmake_options():
     """Reads the contents of the CMake options file that determines which flags are used
     when building a release."""
     opts = '-DCMAKE_BUILD_TYPE=Release -DDENG_BUILD=%s ' % (DOOMSDAY_BUILD_NUMBER)
     try:
-        opts += ' ' + open(os.path.join(LAUNCH_DIR, 'cmake.rsp'), 'rt').read().replace('\n', ' ')
+        opts += ' ' + open(os.path.join(LAUNCH_DIR, cmake_options_path()), 'rt').read().replace('\n', ' ')
     except:
-        print("No additional options provided for CMake (cmake.rsp missing)")
+        print("No additional options provided for CMake (%s missing)" % cmake_options_path())
     return opts