Updated build script to handle 'checksum' target

The build script can now be invoked, for example, with the following options:
> ./scripts/build checksum --frontend beta gamma

1 files changed, 6 insertions, 1 deletions

diff --git a/scripts/builder/main.py b/scripts/builder/main.py
index b9fe04a..ecdbf6a 100755
--- a/scripts/builder/main.py
+++ b/scripts/builder/main.py
@@ -143,47 +143,52 @@ def allBackends ():
 #--------------------------------------------------------------------
 
 def main ():
 	settings = {}
 	parameters = list(itertools.islice(sys.argv, 1, None))
 
 	sys.path.append(os.path.join(scriptDir(), 'backends'))
 	sys.path.append(os.path.join(scriptDir(), 'frontends'))
 	currentRepository = repository.repositoryWithPath(projectBaseDir())
 
 	clean()
 	versions = list(itertools.takewhile(lambda x: not x.startswith('--'), parameters))
-	settings['versions']  = versions;		#['debug', 'install', 'development']
+	settings['versions']  = versions;		#['debug', 'install', 'development', 'checksum']
 	parameters = deque(itertools.dropwhile(lambda x: not x.startswith('--'), parameters))
 	
 	if len(parameters) > 0:
 		parameter = parameters.popleft()
 		if parameter == "--ALL":
 			settings['frontends'] = allFrontends()
 			settings['backends']  = allBackends()
 		else:
 			while parameter != None:
 				values = list(itertools.takewhile(lambda x: not x.startswith('--'), parameters))
 			
 				if parameter == "--backends":
 					settings['backends'] = values
 				elif parameter == "--frontends":
 					settings['frontends'] = values
 			
 				parameters = deque(itertools.dropwhile(lambda x: not x.startswith('--'), parameters))
 				if parameters:
 					parameter = parameters.popleft()
 				else:
 					parameter = None
 	
+		if 'checksum' in settings['versions']:
+			if not 'backends' in settings:
+				settings['backends'] = []
+			settings['backends'].append('checksum')
+		
 		if (not settings.has_key('versions')):
 			usage("missing 'versions'")
 		if (not settings.has_key('frontends')):
 			usage("missing 'frontends'")
 		if (not settings.has_key('backends')):
 			usage("missing 'backends'")
 		
 		build(settings, currentRepository)
 	else:
 		usage("Suggestions on how to call the 'build' script:")