Re: [libvirt] [PATCH 2/2] maint: update syntax-check rule to also catch test's -o operator

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Eric Blake wrote:

> On 03/25/2010 02:22 AM, Jim Meyering wrote:
>>> -# Using test's -a operator is not portable.
>>> -sc_prohibit_test_minus_a:
>>> +# Using test's -a and -o operators is not portable.
>>> +sc_prohibit_test_minus_ao:
>>>  	@re='\<test .+ -[a] '						\
>>>  	msg='use "test C1 && test C2, not "test C1 -''a C2"'		\
>>>  	  $(_prohibit_regexp)
>>> +	@re='\<test .+ -[o] '						\
>>> +	msg='use "test C1 || test C2, not "test C1 -''o C2"'		\
>>> +	  $(_prohibit_regexp)
>>
>> I actually wrote a separate target before I saw you'd done it.  Seeing
>> yours, I realize that both tests do belong in the same rule, but would
>> prefer the efficiency of combining the searches, so that we don't make
>> two passes through all sources, when one will do.  Then the only trick is
>> to produce a combined diagnostic.  Maybe like this (thought the resulting
>> line is too long -- for a diagnostic it's not a big deal).
>
> Agreed, since the diagnostic never prints on a successful run :)
>
>>
>> _m1 = use "test C1 && test C2, not "test C1 -''a C2"
>> _m2 = use "test C1 || test C2, not "test C1 -''o C2"
>>
>> sc_prohibit_test_minus_ao:
>>    	@re='\<test .+ -[ao] '						\
>>    	msg='$(_m1); $(_m2)'						\
>>    	  $(_prohibit_regexp)
>
> I like this change.  ACK to your tweaks to my patch, and looking forward
> to the push.

I've pushed this:

>From 271945a148395230066a61b426437b99ca39091b Mon Sep 17 00:00:00 2001
From: Eric Blake <eblake@xxxxxxxxxx>
Date: Fri, 26 Mar 2010 08:41:05 +0100
Subject: [PATCH] maint: update syntax-check rule to also catch test's -o operator

* cfg.mk (sc_prohibit_test_minus_a): Rename...
(sc_prohibit_test_minus_ao): ...and flag '-o', too.
---
 cfg.mk |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/cfg.mk b/cfg.mk
index bf5eae3..7fdb069 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -270,10 +270,12 @@ sc_preprocessor_indentation:
 	  echo '$(ME): skipping test $@: cppi not installed' 1>&2;	\
 	fi

-# Using test's -a operator is not portable.
-sc_prohibit_test_minus_a:
-	@re='\<test .+ -[a] '						\
-	msg='use "test C1 && test C2, not "test C1 -''a C2"'		\
+_m1 = use "test C1 && test C2", not "test C1 -''a C2"
+_m2 = use "test C1 || test C2", not "test C1 -''o C2"
+# Using test's -a and -o operators is not portable.
+sc_prohibit_test_minus_ao:
+	@re='\<test .+ -[ao] '						\
+	msg='$(_m1); $(_m2)'						\
 	  $(_prohibit_regexp)

 sc_copyright_format:
--
1.7.0.3.448.g82eeb

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