Bug #230483 - Convert glsa-check option parsing to use the optparse module.

This replaces some code which triggers a traceback from 2to3. Thanks to
Ali Polatel <hawking@g.o> for this patch.

svn path=/main/trunk/; revision=12634

1 files changed, 71 insertions, 93 deletions

diff --git a/bin/glsa-check b/bin/glsa-check
index 8aea638a5..b7b9b47d9 100644
--- a/bin/glsa-check
+++ b/bin/glsa-check
@@ -15,111 +15,89 @@ except ImportError:
 
 from portage.output import *
 
-from getopt import getopt, GetoptError
+from optparse import OptionGroup, OptionParser
 
 __program__ = "glsa-check"
 __author__ = "Marius Mauch <genone@gentoo.org>"
 __version__ = "1.0"
 
-optionmap = [
-["-l", "--list", "list all unapplied GLSA"],
-["-d", "--dump", "--print", "show all information about the given GLSA"],
-["-t", "--test", "test if this system is affected by the given GLSA"],
-["-p", "--pretend", "show the necessary commands to apply this GLSA"],
-["-f", "--fix", "try to auto-apply this GLSA (experimental)"],
-["-i", "--inject", "inject the given GLSA into the checkfile"],
-["-n", "--nocolor", "disable colors (option)"],
-["-e", "--emergelike", "do not use a least-change algorithm (option)"],
-["-h", "--help", "show this help message"],
-["-V", "--version", "some information about this tool"],
-["-v", "--verbose", "print more information (option)"],
-["-c", "--cve", "show CAN ids in listing mode (option)"],
-["-m", "--mail", "send a mail with the given GLSAs to the administrator"]
-]
+def cb_version(*args, **kwargs):
+	"""Callback for --version"""
+	sys.stderr.write("\n"+ __program__ + ", version " + __version__ + "\n")
+	sys.stderr.write("Author: " + __author__ + "\n")
+	sys.stderr.write("This program is licensed under the GPL, version 2\n\n")
+	sys.exit(0)
 
 # option parsing
-args = []
-params = []
-try:
-	args, params = getopt(sys.argv[1:], "".join([o[0][1] for o in optionmap]), \
-		[x[2:] for x in reduce(lambda x,y: x+y, [z[1:-1] for z in optionmap])])
-#		["dump", "print", "list", "pretend", "fix", "inject", "help", "verbose", "version", "test", "nocolor", "cve", "mail"])
-	args = [a for a,b in args]
-	
-	for option in ["--nocolor", "-n"]:
-		if option in args:
-			nocolor()
-			args.remove(option)
-			
-	verbose = False
-	for option in ["--verbose", "-v"]:
-		if option in args:
-			verbose = True
-			args.remove(option)
-
-	list_cve = False
-	for option in ["--cve", "-c"]:
-		if option in args:
-			list_cve = True
-			args.remove(option)
-	
-	least_change = True
-	for option in ["--emergelike", "-e"]:
-		if option in args:
-			least_change = False
-			args.remove(option)
-
-	# sanity checking
-	if len(args) <= 0:
-		sys.stderr.write("no option given: what should I do ?\n")
-		mode="help"
-	elif len(args) > 1:
-		sys.stderr.write("please use only one command per call\n")
-		mode = "help"
-	else:
-		# in what mode are we ?
-		args = args[0]
-		for m in optionmap:
-			if args in [o for o in m[:-1]]:
-				mode = m[1][2:]
-
-except GetoptError, e:
-	sys.stderr.write("unknown option given: ")
-	sys.stderr.write(str(e)+"\n")
-	mode = "help"
-
-# we need a set of glsa for most operation modes
-if len(params) <= 0 and mode in ["fix", "test", "pretend", "dump", "inject", "mail"]:
+parser = OptionParser(usage="%prog <option> [glsa-list]",
+		version="%prog "+ __version__)
+parser.epilog = "glsa-list can contain an arbitrary number of GLSA ids," \
+		" filenames containing GLSAs or the special identifiers" \
+		" 'all', 'new' and 'affected'"
+
+modes = OptionGroup(parser, "Modes")
+modes.add_option("-l", "--list", action="store_const",
+		const="list", dest="mode",
+		help="List all unapplied GLSA")
+modes.add_option("-d", "--dump", action="store_const",
+		const="dump", dest="mode",
+		help="Show all information about the given GLSA")
+modes.add_option("", "--print", action="store_const",
+		const="dump", dest="mode",
+		help="Alias for --dump")
+modes.add_option("-t", "--test", action="store_const",
+		const="test", dest="mode",
+		help="Test if this system is affected by the given GLSA")
+modes.add_option("-p", "--pretend", action="store_const",
+		const="pretend", dest="mode",
+		help="Show the necessary commands to apply this GLSA")
+modes.add_option("-f", "--fix", action="store_const",
+		const="fix", dest="mode",
+		help="Try to auto-apply this GLSA (experimental)")
+modes.add_option("-i", "--inject", action="store_const", dest="mode",
+		help="Inject the given GLSA into the checkfile")
+modes.add_option("-m", "--mail", action="store_const",
+		const="mail", dest="mode",
+		help="Send a mail with the given GLSAs to the administrator")
+parser.add_option_group(modes)
+
+parser.remove_option("--version")
+parser.add_option("-V", "--version", action="callback",
+		callback=cb_version, help="Some information about this tool")
+parser.add_option("-v", "--verbose", action="store_true", dest="verbose",
+		help="Print more information")
+parser.add_option("-n", "--nocolor", action="callback",
+		callback=lambda *args, **kwargs: nocolor(),
+		help="Disable colors")
+parser.add_option("-e", "--emergelike", action="store_false", dest="least_change",
+		help="Do not use a least-change algorithm")
+parser.add_option("-c", "--cve", action="store_true", dest="list_cve",
+		help="Show CAN ids in listing mode")
+
+options, params = parser.parse_args()
+
+mode = options.mode
+least_change = options.least_change
+list_cve = options.list_cve
+verbose = options.verbose
+
+# Sanity checking
+if mode is None:
+	sys.stderr.write("No mode given: what should I do?\n")
+	parser.print_help()
+	sys.exit(1)
+elif mode != "list" and not params:
 	sys.stderr.write("\nno GLSA given, so we'll do nothing for now. \n")
 	sys.stderr.write("If you want to run on all GLSA please tell me so \n")
 	sys.stderr.write("(specify \"all\" as parameter)\n\n")
-	mode = "help"
-elif len(params) <= 0 and mode == "list":
-	params.append("new")
-	
-# show help message
-if mode == "help":
-	sys.stderr.write("\nSyntax: glsa-check <option> [glsa-list]\n\n")
-	for m in optionmap:
-		sys.stderr.write(m[0] + "\t" + m[1] + "   \t: " + m[-1] + "\n")
-		for o in m[2:-1]:
-			sys.stderr.write("\t" + o + "\n")
-	sys.stderr.write("\nglsa-list can contain an arbitrary number of GLSA ids, \n")
-	sys.stderr.write("filenames containing GLSAs or the special identifiers \n")
-	sys.stderr.write("'all', 'new' and 'affected'\n")
+	parser.print_help()
 	sys.exit(1)
-
-# we need root priviledges for write access
-if mode in ["fix", "inject"] and os.geteuid() != 0:
-	sys.stderr.write("\nThis tool needs root access to "+mode+" this GLSA\n\n")
+elif mode in ["fix", "inject"] and os.geteuid() != 0:
+	# we need root priviledges for write access
+	sys.stderr.write("\nThis tool needs root access to "+options.mode+" this GLSA\n\n")
 	sys.exit(2)
-
-# show version and copyright information
-if mode == "version":
-	sys.stderr.write("\n"+ __program__ + ", version " + __version__ + "\n")
-	sys.stderr.write("Author: " + __author__ + "\n")
-	sys.stderr.write("This program is licensed under the GPL, version 2\n\n")
-	sys.exit(0)
+elif mode == "list" and not params:
+	params.append("new")
 
 # delay this for speed increase
 from portage.glsa import *