makedist can now build FAQ separately (--faq-only)

git-svn-id: http://svn.savannah.nongnu.org/svn/rdiff-backup@227 2b77aa54-bcbc-44c9-a7ec-4f6cf2b41109

trunk/rdiff-backup/dist/makedist

 #!/usr/bin/env python
 
-import os, re, shutil, time, sys
+import os, re, shutil, time, sys, getopt
 
 SourceDir = "src"
 DistDir = "dist"
@@ -119,19 +119,36 @@ def MakeSpecFile():
 	VersionedCopy(spec_template, specfile)
 	return specfile
 
+def parse_cmdline(arglist):
+	"""Returns action"""
+	global Version
+	def error():
+		print "Syntax: makedist [--faq-only] [version_number]"
+		sys.exit(1)		
+
+	optlist, args = getopt.getopt(arglist, "", ["faq-only"])
+	if len(args) != 1: error()
+	else: Version = args[0]
+
+	for opt, arg in optlist:
+		if opt == "--faq-only": return "FAQ"
+		else: assert 0, "Bad argument"
+	return "All"
+
 def Main():
+	action = parse_cmdline(sys.argv[1:])
+	if action == "FAQ":
 		print "Making FAQ"
 		MakeFAQ()
+	else:
+		assert action == "All"
 		print "Processing version " + Version
 		tarfile = MakeTar()
 		print "Made tar file " + tarfile
 		specfile = MakeSpecFile()
 		print "Made specfile ", specfile
 
+
 if __name__ == "__main__" and not globals().has_key('__no_execute__'):
-	if len(sys.argv) != 2:
-		print "Syntax: makedist [version_number]"
-		sys.exit(1)
-	Version = sys.argv[1]
 	Main()