Improved build scripts

Signed-off-by: Giulio Cesare Solaroli <giulio.cesare@clipperz.com>

8 files changed, 287 insertions, 149 deletions

diff --git a/scripts/builder/backendBuilder.py b/scripts/builder/backendBuilder.py
index 16dbe2f..5ecdda0 100644
--- a/scripts/builder/backendBuilder.py
+++ b/scripts/builder/backendBuilder.py
@@ -3,10 +3,14 @@
 
 import sys, os, json
 import shutil
-import main
 import hashlib
 
-class BackendBuilder:
+import main
+
+#===================================================================
+
+
+class BackendBuilder(object):
 	
 	def __init__ (self, projectTargetDir, frontends, versions, settings):
 		self.projectTargetDir = projectTargetDir
@@ -14,46 +18,54 @@ class BackendBuilder:
 		self.versions = versions
 		self.settings = settings
 	
+	# --------------------------------------------------------------------------
+	
 	def name (self):
 		raise NotImplementedError()
 	
+	
 	def relativePath (self):
 		raise NotImplementedError()
 	
+	
 	def compileCode (self):
-		pass
+		raise NotImplementedError()
+
 	
-	def copyCompiledCodeToTargetDir (self):
-		src = self.sourceFolder()
-		dst = self.targetFolder()
-		main.createFolder(os.path.dirname(dst))
-		shutil.copytree(src, dst)
+	def createPackage (self):
+		raise NotImplementedError()
+
+	# --------------------------------------------------------------------------
 
 	def sourceFolder (self):
-		return main.projectBaseDir() + '/backend/' + self.relativePath() + '/src'
+		return os.path.join(main.projectBaseDir() , 'backend', self.relativePath(), 'src')
 	
 
-	def targetFolder (self):
-		return self.projectTargetDir + self.relativePath()
+	def tempFolder (self):
+		return os.path.join(self.projectTargetDir, '.tmp', self.relativePath())
 	
-	def createTargetFolder (self):
-		main.createFolder(self.targetFolder())
 	
+	def frontEndTempFolder (self):
+		return self.tempFolder()
 
-#	def copyFrontendResources (self, frontend):
-#		print "copying resources for frontend: " + frontend
-#		print "SETTINGS: " + str(self.settings)
 	
+	def developmentTargetFolder (self):
+		return os.path.join(self.projectTargetDir, 'development', self.relativePath())
 
-	def writeToTargetFolder (self, filename, content):
-		file = open(self.targetFolder() + '/' + filename, 'w')
+	def targetFolder (self):
+		return os.path.join(self.projectTargetDir, self.relativePath())
+		
+	# --------------------------------------------------------------------------
+	
+	def writeToFolder (self, folder, filename, content):
+		file = open(os.path.join(folder, filename), 'w')
 		file.write(content.encode('utf-8'))
 		file.close()
 		
 
-	def configureIndexContent (self, indexContent):
+	def configureIndexContent (self, indexContent, requestPathPrefix = ".."):
 		result = indexContent
-		result = result.replace( '@request.path@',    self.settings['request.path']    )
+		result = result.replace( '@request.path@',    requestPathPrefix + '/' + self.settings['request.path']    )
 		result = result.replace( '@should.pay.toll@', self.settings['should.pay.toll'] )
 
 		return result
@@ -68,22 +80,39 @@ class BackendBuilder:
 		print message + ": " + sha256Digest + " (sha256)"
 		
 	
+	def shouldCompileCode (self):
+		return ('debug' in self.versions) or ('install' in self.versions)
+
 
 	def run (self):
 		print self.name() + " - RUN"
 
+		if self.shouldCompileCode():
 		self.compileCode()
-		self.copyCompiledCodeToTargetDir()
 		
 		for frontend in self.frontends:
-			frontendPath = frontend.module + '/'
+				main.createFolder(os.path.join(self.frontEndTempFolder(), frontend.module))
+
 			if 'debug' in self.versions:
-				frontend.copyResourcesToTargetFolder(self.targetFolder())
-				#self.writeToTargetFolder(frontendPath + 'index_debug.html', self.configureIndexContent(frontend.assembleDebugVersion()))
-				self.writeToTargetFolder(frontendPath + 'index_debug.html', self.configureIndexContent(frontend.assemble(assemblyMode='DEBUG', versionType='DEBUG')))
+					frontend.copyResourcesToFolder(self.frontEndTempFolder())
+
+					index = self.configureIndexContent(frontend.assemble(assemblyMode='DEBUG', versionType='DEBUG'))
+					self.writeToFolder(self.frontEndTempFolder(), os.path.join(frontend.module, 'index_debug.html'), index)
 			
 			if 'install' in self.versions:
 				index = self.configureIndexContent(frontend.assemble())
-				self.writeToTargetFolder(frontendPath + 'index.html', index)
+					self.writeToFolder(self.frontEndTempFolder(), os.path.join(frontend.module, 'index.html'), index)
+
 				self.logChecksums(index, "[" + self.name() + " - " + frontend.module + "] index.html checksum")
 	
+			self.createPackage()
+
+		if 'development' in self.versions:
+			for frontend in self.frontends:
+				main.createFolder(os.path.join(self.developmentTargetFolder(), frontend.module))
+
+				index = self.configureIndexContent(frontend.assemble(assemblyMode='DEVELOPMENT', versionType='DEBUG'), self.settings['development.settings']['url'])
+				self.writeToFolder(self.developmentTargetFolder(), os.path.join(frontend.module, 'index_development.html'), index)
+
+	
+#===================================================================
diff --git a/scripts/builder/phpBuilder.py b/scripts/builder/backends/phpBuilder.py
index cb4661d..c928aa0 100644
--- a/scripts/builder/phpBuilder.py
+++ b/scripts/builder/backends/phpBuilder.py
@@ -1,14 +1,13 @@
 #!/usr/bin/env python
 # -*- coding: UTF-8 -*-
 
-from backendBuilder import BackendBuilder
+from scriptLanguageBuilder import ScriptLanguageBuilder
 
-class PhpBuilder(BackendBuilder):
+class PhpBuilder(ScriptLanguageBuilder):
 	
 	def name(self):
 		return "PHP builder"
 	
+	
 	def relativePath(self):
 		return 'php'
-	
-
diff --git a/scripts/builder/backends/pythonBuilder.py b/scripts/builder/backends/pythonBuilder.py
new file mode 100644
index 0000000..1e44209
--- a/dev/null
+++ b/scripts/builder/backends/pythonBuilder.py
@@ -0,0 +1,27 @@
+#!/usr/bin/env python
+# -*- coding: UTF-8 -*-
+
+from scriptLanguageBuilder import ScriptLanguageBuilder
+
+class PythonBuilder(ScriptLanguageBuilder):
+	
+	def name(self):
+		return "Python builder"
+
+	
+	def relativePath(self):
+		return 'python'
+
+
+	def compileCode (self):
+		src = self.sourceFolder()
+		dst = self.targetFolder()
+
+		shutil.copytree(src, dst)
+
+
+#	def copyCompiledCodeToTargetDir (self):
+#		src = self.sourceFolder()
+#		dst = self.targetFolder()
+#
+#		shutil.copytree(src, dst)
diff --git a/scripts/builder/backends/scriptLanguageBuilder.py b/scripts/builder/backends/scriptLanguageBuilder.py
new file mode 100644
index 0000000..7d5b31c
--- a/dev/null
+++ b/scripts/builder/backends/scriptLanguageBuilder.py
@@ -0,0 +1,20 @@
+#!/usr/bin/env python
+# -*- coding: UTF-8 -*-
+
+import shutil
+from backendBuilder import BackendBuilder
+
+class ScriptLanguageBuilder(BackendBuilder):
+
+	def compileCode (self):
+		src = self.sourceFolder()
+		dst = self.tempFolder()
+
+		shutil.copytree(src, dst)
+
+
+	def createPackage (self):
+		src = self.tempFolder()
+		dst = self.targetFolder()
+
+		shutil.copytree(src, dst)
diff --git a/scripts/builder/frontendBuilder.py b/scripts/builder/frontendBuilder.py
index 55054ee..dae837b 100644
--- a/scripts/builder/frontendBuilder.py
+++ b/scripts/builder/frontendBuilder.py
@@ -9,17 +9,11 @@ import shutil
 import StringIO
 import urllib
 
-#from mercurial import ui, hg
-#from mercurial.node import hex
-from dulwich.repo import Repo
-
 import main
 
+class FrontendBuilder(object):
 
-
-class FrontendBuilder:
-
-	def __init__ (self, frontend, settings):
+	def __init__ (self, frontend, settings, repositoryVersion):
 		if '.' in frontend:
 			moduleComponents = frontend.split('.')
 			self.module = moduleComponents[0]
@@ -30,53 +24,26 @@ class FrontendBuilder:
 
 		self.settings = settings
 		self.projectDir = main.projectBaseDir()
+		# self.repository = repository.repositoryWithPath(self.projectDir)
+		self.repositoryVersion = repositoryVersion
 		self.processedFiles = {}
 		
 
-	def mercurialRepositoryVersion (self):
-		repo = hg.repository(ui.ui(), self.projectDir)
-		context = repo['tip']
-		result = str(context)
-		
-		return result
-	
-
-	def gitRepositoryVersion (self):
-		repo = Repo(self.projectDir)
-		#if repo.is_dirty():
-		#	print "WARNING: build run with dirty repository"
-		result = repo.refs['HEAD']
-		
-		return result
-	
-
-		
-	def repositoryVersion (self): 
-		cacheKey = 'repositoryVersion'
-		if not self.processedFiles.has_key(cacheKey):
-			#result = self.mercurialRepositoryVersion()
-			result = self.gitRepositoryVersion()
-			self.processedFiles[cacheKey] = result
-		else:
-			result = self.processedFiles[cacheKey]
-		
-		return result
-	
-
-	#def relativePath (self):
-	#	return self.module
-	#
-
 	def log (self, message):
 		print "frontend [" + self.module + "]: " + message
 	
 
-	def absolutePathForSourceFile (self, folder, basePath, file):
-		return folder + '/frontend/' + self.module + '/' + basePath + '/' + file
+	def absolutePathForSources (self):
+		return os.path.join(self.projectDir, 'frontend', self.module)
+
+	
+	def absolutePathForSourceFile (self, basePath, file):
+		return os.path.join(self.absolutePathForSources(), basePath, file)
 	
 
 	def absolutePathForTargetFile (self, folder, basePath, file):
-		return folder + '/' + self.module + '/' + basePath + '/' + file
+		return os.path.join(folder, self.module, basePath, file)
+
 
 	def filterFiles (self, files):
 		result = []
@@ -92,13 +59,13 @@ class FrontendBuilder:
 
 	def copyResources (self, sourceFolder, destinationFolder, fileType):
 		for file in self.filterFiles(self.settings[fileType]):
-			src = self.absolutePathForSourceFile(sourceFolder,      fileType, file)
+			src = self.absolutePathForSourceFile(fileType, file)
 			dst = self.absolutePathForTargetFile(destinationFolder, fileType, file)
 			main.createFolder(os.path.dirname(dst))
 			shutil.copy2(src, dst)
 		
 
-	def copyResourcesToTargetFolder (self, targetFolder):
+	def copyResourcesToFolder (self, targetFolder):
 		self.copyResources(self.projectDir, targetFolder, 'css')
 		self.copyResources(self.projectDir, targetFolder, 'js')
 	
@@ -108,7 +75,7 @@ class FrontendBuilder:
 		
 		for file in self.filterFiles(files):
 			try:
-				fileHandler = codecs.open(self.absolutePathForSourceFile(self.projectDir, basePath, file), 'r', 'utf-8')
+				fileHandler = codecs.open(self.absolutePathForSourceFile(basePath, file), 'r', 'utf-8')
 			except:
 				print "FILE: " + file
 
@@ -181,8 +148,8 @@ class FrontendBuilder:
 
 	#==========================================================================
 
-	def compressJS_jsmin (self, js):
-		self.log("compressing JS code")
+	def compressJS_jsmin (self, js, description):
+		self.log("compressing " + description + " code")
 		original = StringIO.StringIO(js)
 		output = StringIO.StringIO()
 		
@@ -196,7 +163,7 @@ class FrontendBuilder:
 		
 		return result
 
-	def compressJS_closureCompiler (self, js):
+	def compressJS_closureCompiler (self, js, description):
 		#	Googles Closure compiler
 		#	java -jar compiler.jar --js=in1.js --js=in2.js ... --js_output_file=out.js
 		
@@ -205,14 +172,14 @@ class FrontendBuilder:
 		return result
 	
 
-	def compressJS (self, js):
-		return self.compressJS_jsmin(js)
-		#return self.compressJS_closureCompiler(js)
+	def compressJS (self, js, description):
+		return self.compressJS_jsmin(js, description)
+		#return self.compressJS_closureCompiler(js, description)
 	
 
 	#==========================================================================
 
-	def packBookmarklet (self, bookmakeletCode):
+	def packBookmarklet (self, bookmakeletCode, version):
 		replacers = [
 			('isLoginForm',				'ilf'),
 			('findLoginForm',			'flf'),
@@ -227,7 +194,7 @@ class FrontendBuilder:
 			('parameters',				'p'  ),
 			('inputElementValues',		'iev'),
 		]
-		result = self.compressJS(bookmakeletCode)
+		result = self.compressJS(bookmakeletCode, version + " bookmarklet")
 		
 		result = re.sub('\n', ' ', result)	#	Fit all in a single line
 		# result = re.sub('\s+', ' ', result)	#	Collapse "redundant" spaces. WARNING: this could have some evil side effects on constant strings used inside to code!!
@@ -300,7 +267,7 @@ class FrontendBuilder:
 	def bookmarklet (self):
 		cacheKey = 'bookmarklet'
 		if not self.processedFiles.has_key(cacheKey):
-			result = 'bookmarklet="' + self.packBookmarklet(self.loadFilesContent('js', ['Bookmarklet.js'])) + '";bookmarklet_ie="' + self.packBookmarklet(self.loadFilesContent('js', ['Bookmarklet_IE.js'])) + '";'
+			result = 'bookmarklet="' + self.packBookmarklet(self.loadFilesContent('js', ['Bookmarklet.js']), "regular") + '";bookmarklet_ie="' + self.packBookmarklet(self.loadFilesContent('js', ['Bookmarklet_IE.js']), "IE") + '";'
 			self.processedFiles[cacheKey] = result
 		else:
 			result = self.processedFiles[cacheKey]
@@ -308,7 +275,7 @@ class FrontendBuilder:
 		return result
 	
 
-	def replaceTemplatePlaceholders (self, assemblyMode, pageTitle, copyright, css, code, version, versionType):
+	def replaceTemplatePlaceholders (self, pageTitle, copyright, css, code, jsLoadMode, version, versionType):
 		result = self.template()
 		
 		result = result.replace('@page.title@',					pageTitle,		1)
@@ -317,7 +284,7 @@ class FrontendBuilder:
 		#result = result.replace('@bookmarklet@',				bookmarklet,	1)
 		result = result.replace('@application.version@',		version,		1)
 		result = result.replace('@application.version.type@',	versionType,	1)
-		result = result.replace('@js_' + assemblyMode + '@',	code,			1)
+		result = result.replace('@js_' + jsLoadMode + '@',		code,			1)
 
 		result = re.sub('@js_[^@]+@', '', result)
 
@@ -343,7 +310,7 @@ class FrontendBuilder:
 
 	def cssTagsForFiles (self, basePath, files):
 		#<link rel="stylesheet" type="text/css" href="./css/reset-min.css" />
-		return '\n'.join(map(lambda file: '<link rel="stylesheet" type="text/css" href="./' + basePath + '/' + file + '" />', files))
+		return '\n'.join(map(lambda file: '<link rel="stylesheet" type="text/css" href="' + basePath + '/' + file + '" />', files))
 	
 
 	def cssTagForContent (self, content):
@@ -352,17 +319,17 @@ class FrontendBuilder:
 
 	def scriptTagsForFiles (self, basePath, files):
 		#<script type='text/javascript' src='./js/src/bookmarklet.js'></script>
-		return '\n'.join(map(lambda file: '<script type="text/javascript" src="./' + basePath + '/' + file + '"></script>', files))
+		return '\n'.join(map(lambda file: '<script type="text/javascript" src="' + basePath + '/' + file + '"></script>', files))
 	
 
 	def scriptTagForContent (self, content):
 		return '<script>' + content + '</script>'
 	
 
-	def assembleVersion (self, assemblyMode, pageTitle, copyright, css, js, version, versionType):
+	def assembleVersion (self, pageTitle, copyright, css, js, jsLoadMode, version, versionType):
 		cacheKey = version + "-" + versionType
 		if not self.processedFiles.has_key(cacheKey):
-			result = self.replaceTemplatePlaceholders(assemblyMode, pageTitle, copyright, css, js, version, versionType)
+			result = self.replaceTemplatePlaceholders(pageTitle, copyright, css, js, jsLoadMode, version, versionType)
 			self.processedFiles[cacheKey] = result
 		else:
 			result = self.processedFiles[cacheKey]
@@ -372,24 +339,48 @@ class FrontendBuilder:
 	
 
 	def assemble (self, assemblyMode='INSTALL', versionType='LIVE'):
+
+		if versionType == 'LIVE':
 		pageTitle = "Clipperz - " + self.module
-		if versionType != 'LIVE':
-			pageTitle += " [" + versionType + " - " + assemblyMode +"]"
+		else:
+			pageTitle = "Clipperz - " + self.module + " [" + versionType + " - " + assemblyMode +"]"
 		
 		if assemblyMode == 'INSTALL':
+			copyright = self.assembleCopyrightHeader()
 			css	= self.cssTagForContent(self.compressCSS(self.loadFilesContent('css', self.settings['css'])))
-			js	= self.scriptTagForContent(self.bookmarklet() + '\n' + self.compressJS(self.loadFilesContent('js', self.settings['js'])))
+			js	=	self.scriptTagForContent(
+						self.bookmarklet() +
+						'\n' +
+						self.compressJS(self.loadFilesContent('js', self.settings['js']), "application")
+					)
+			jsLoadMode = 'EMBEDDED'
+
+		elif assemblyMode == 'DEBUG':
+			copyright = self.assembleCopyrightHeader()
+			css	=	self.cssTagsForFiles('./css', self.filterFiles(self.settings['css']))
+			js	=	self.scriptTagForContent(self.bookmarklet()) + \
+				 	'\n' + \
+					self.scriptTagsForFiles('./js', self.filterFiles(self.settings['js']))
+			jsLoadMode = 'LINKED'
+
+		elif assemblyMode == 'DEVELOPMENT':
+			copyright = ""
+			css	=	self.cssTagsForFiles('file://' + str(os.path.join(self.absolutePathForSources(), 'css')), self.filterFiles(self.settings['css']))
+			js	=	self.scriptTagForContent(self.bookmarklet()) + \
+				 	'\n' + \
+					self.scriptTagsForFiles('file://' + str(os.path.join(self.absolutePathForSources(), 'js')), self.filterFiles(self.settings['js']))
+			jsLoadMode = 'LINKED'
+
 		else:
-			css	= self.cssTagsForFiles('css', self.filterFiles(self.settings['css']))
-			js	= self.scriptTagForContent(self.bookmarklet()) + '\n' + self.scriptTagsForFiles('js', self.filterFiles(self.settings['js']))
+			raise NotImplementedError()
 		
 		return self.assembleVersion(
-			assemblyMode	= assemblyMode,
 			pageTitle		= pageTitle,
-			copyright		= self.assembleCopyrightHeader(),
+			copyright		= copyright,
 			css				= css,
 			js				= js,
-			version			= self.repositoryVersion(),
+			jsLoadMode		= jsLoadMode,
+			version			= self.repositoryVersion,
 			versionType		= versionType
 		)
 
diff --git a/scripts/builder/main.py b/scripts/builder/main.py
index 94f738f..6fce65d 100755
--- a/scripts/builder/main.py
+++ b/scripts/builder/main.py
@@ -1,16 +1,17 @@
 #!/usr/bin/env python
 # -*- coding: UTF-8 -*-
 
-import sys, os, json
+import sys
+import os
+import json
 import shutil
 import pprint
-import frontendBuilder
 import codecs
 import itertools
-
 from collections   import deque
-from phpBuilder    import PhpBuilder
-from pythonBuilder import PythonBuilder
+
+import frontendBuilder
+import repository
 
 pp = pprint.PrettyPrinter(indent=4, depth=4)
 
@@ -34,7 +35,7 @@ def createFolder (path):
 #--------------------------------------------------------------------
 
 def loadSettings (component, module):
-	print "MODULE: " + module
+	# print "MODULE: " + module
 
 	if '.' in module:
 		moduleComponents = module.split('.')
@@ -43,7 +44,8 @@ def loadSettings (component, module):
 	else:
 		submodule = module
 
-	settings = codecs.open(projectBaseDir() + '/' + component + '/' + module + '/properties/' + submodule + '.properties.json', 'r', 'utf-8')
+	#settings = codecs.open(projectBaseDir() + os.sep + component + os.sep + module + os.sep + 'properties' + os.sep + submodule + '.properties.json', 'r', 'utf-8')
+	settings = codecs.open(os.path.join(projectBaseDir(), component, module, 'properties', submodule + '.properties.json'), 'r', 'utf-8')
 	result = json.load(settings)
 	settings.close
 
@@ -71,24 +73,25 @@ def loadSettings (component, module):
 def assembleBackend (backend, frontends, versions):
 	settings = loadSettings('backend', backend)
 	
-	if backend == 'php':
-		backendBuilder = PhpBuilder(projectTargetDir(), frontends, versions, settings)
-	elif backend == 'python':
-		backendBuilder = PythonBuilder(projectTargetDir(), frontends, versions, settings)
-	#elif backend == 'java':
-	#	buildJavaBackend (frontends, versions, settings)
-	else:
-		raise Exception('unrecognized backend: ' + backend)
+	builderModuleName = backend + 'Builder'
+	builderClassName  = backend.capitalize() + 'Builder'
+
+	builderModule  = __import__(builderModuleName)
+	builderClass   = getattr(builderModule, builderClassName)
 		
+	backendBuilder = builderClass(projectTargetDir(), frontends, versions, settings)
 	backendBuilder.run()	
 
 #====================================================================
 
-def build (settings):
+def build (settings, repository):
 	frontends = []
 	
+	if repository.areTherePendingChanges():
+		print "\nWARNING: repository has pending changes\n"
+
 	for frontend in settings['frontends']:
-		frontends.append(frontendBuilder.FrontendBuilder(frontend, loadSettings('frontend', frontend)))
+		frontends.append(frontendBuilder.FrontendBuilder(frontend, loadSettings('frontend', frontend), repository.version()))
 
 	for backend in settings['backends']:
 		assembleBackend(backend, frontends, settings['versions'])
@@ -96,7 +99,7 @@ def build (settings):
 #--------------------------------------------------------------------
 
 def clean ():
-	print "cleaning up …"
+	# print "cleaning up …"
 	if os.path.exists(projectTargetDir()):
 		shutil.rmtree(projectTargetDir())
 
@@ -107,35 +110,42 @@ def usage (message):
 		print "ERROR: " + message
 	
 	print
-	print "build.py clean"
-	print "build.py clean install"
-	print "build.py install --ALL"
-	print "build.py install debug --ALL"
-	print "build.py clean install debug --ALL"
-	print "build.ph install, debug --backends php java --frontends beta gamma"
-	print "build.ph install, debug --backends php java --frontends beta gamma gamma.mobile"
+	# print "build clean"
+	# print "build clean install"
+	print "build install --ALL"
+	print "build install debug --ALL"
+	# print "build clean install debug --ALL"
+	print "build install debug --backends php python --frontends beta gamma"
+	print "build install debug development --backends php python --frontends beta gamma gamma.mobile"
 	exit(1)
 
 #--------------------------------------------------------------------
 
+def allFrontends ():
+	return ['beta', 'gamma',  'mobile']
+
+def allBackends ():
+	return ['php',  'python']
+
+#--------------------------------------------------------------------
+
 def main ():
 	settings = {}
 	parameters = list(itertools.islice(sys.argv, 1, None))
 	
-	shouldClean = len(filter(lambda x: x == 'clean', parameters)) > 0
-	if (shouldClean):
-		clean ()
+	sys.path.append(os.path.join(scriptDir(), 'backends'))
+	currentRepository = repository.repositoryWithPath(projectBaseDir())
 	
-	parameters = filter(lambda x: x != 'clean', parameters)
+	clean()
 	versions = list(itertools.takewhile(lambda x: not x.startswith('--'), parameters))
-	settings['versions']  = versions;		#['debug',  'install']
+	settings['versions']  = versions;		#['debug', 'install', 'development']
 	parameters = deque(itertools.dropwhile(lambda x: not x.startswith('--'), parameters))
 	
 	if len(parameters) > 0:
 		parameter = parameters.popleft()
 		if parameter == "--ALL":
-			settings['frontends'] = ['beta', 'gamma',  'mobile']
-			settings['backends']  = ['php',  'python', 'java']
+			settings['frontends'] = allFrontends()
+			settings['backends']  = allBackends()
 		else:
 			while parameter != None:
 				values = list(itertools.takewhile(lambda x: not x.startswith('--'), parameters))
@@ -158,8 +168,9 @@ def main ():
 		if (not settings.has_key('backends')):
 			usage("missing 'backends'")
 		
-		build (settings)
-	
+		build(settings, currentRepository)
+	else:
+		usage("Suggestions on how to call the 'build' script:")
 
 
 if __name__ == "__main__":
diff --git a/scripts/builder/pythonBuilder.py b/scripts/builder/pythonBuilder.py
deleted file mode 100644
index a84598d..0000000
--- a/scripts/builder/pythonBuilder.py
+++ b/dev/null
@@ -1,14 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: UTF-8 -*-
-
-from backendBuilder import BackendBuilder
-
-class PythonBuilder(BackendBuilder):
-	
-	def name(self):
-		return "Python builder"
-	
-	def relativePath(self):
-		return 'python'
-	
-
diff --git a/scripts/builder/repository.py b/scripts/builder/repository.py
new file mode 100644
index 0000000..89db9a5
--- a/dev/null
+++ b/scripts/builder/repository.py
@@ -0,0 +1,75 @@
+#!/usr/bin/env python
+# -*- coding: UTF-8 -*-
+
+
+def repositoryWithPath (path):
+	try:
+		from dulwich.repo import Repo
+
+		repo = Repo(path)
+		result = GitRepository(repo, path)
+	except:
+		from mercurial import ui, hg
+
+		repo = hg.repository(ui.ui(), path)
+		result = HgRepository(repo, path)
+
+	return result
+
+
+#===================================================================
+
+
+class Repository(object):
+
+	def __init__ (self, repository, path):
+		self.repository = repository
+		self.path = path
+
+
+	def revision (self):
+		raise NotImplementedError()
+	
+
+	def areTherePendingChanges (self):
+		raise NotImplementedError()
+
+
+	def version (self):
+		result = self.revision()
+		if self.areTherePendingChanges():
+			result = '>>> ' + result + ' <<<'
+
+		# print "VERSION: " + result
+		return result
+
+
+#===================================================================
+
+
+class GitRepository(Repository):
+
+	def revision (self):
+		return repository.refs['HEAD']
+	
+
+	def areTherePendingChanges (self):
+		return repository.is_dirty()
+
+
+#===================================================================
+
+
+class HgRepository(Repository):
+	#	http://mercurial.selenic.com/wiki/MercurialApi
+
+	def revision (self):
+		return 'hg:' + str(self.repository['tip'])
+	
+
+	def areTherePendingChanges (self):
+		# TODO: FIXME: repository.status() does not report 'unknown(?)' files. :(
+		return not all(map(lambda fileList: len(fileList) == 0, self.repository.status()))
+
+
+#===================================================================