diffconfig: Gracefully exit if the default config files are not present

Handle gracefully the instance where config files are not present. Compatible with python versions 2.5, 2.6 and 2.7. The try/except is forward compatible with python version 3 once the entire script is ported.

Mike Pagano committed 13 years ago

Commit 6bf2e841 parent 11097a01 file · +7 −2Browse files

Showing the changes to scripts/diffconfig (1 of 1 file). Show all

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scripts/diffconfig+7−2

@@ -94,8 +94,13 @@ def main(): · 93 unmodified lines
94	94	configa_filename = sys.argv[1]
95	95	configb_filename = sys.argv[2]
96	96
97		− a = readconfig(file(configa_filename))
98		− b = readconfig(file(configb_filename))
	97	+ try:
	98	+ a = readconfig(file(configa_filename))
	99	+ b = readconfig(file(configb_filename))
	100	+ except (IOError):
	101	+ e = sys.exc_info()[1]
	102	+ print("I/O error[%s]: %s\n" % (e.args[0],e.args[1]))
	103	+ usage()
99	104
100	105	# print items in a but not b (accumulate, sort and print)
101	106	old = []