On Mon, Aug 2, 2010 at 3:20 PM, Anthony Liguori <anth...@codemonkey.ws> wrote: > On 07/31/2010 06:49 PM, Aurelien Jarno wrote: >> >> On Sat, Jul 31, 2010 at 08:23:55PM +0000, Blue Swirl wrote: >> >>> >>> On Sat, Jul 31, 2010 at 4:23 PM, malc<av1...@comtv.ru> wrote: >>> >>>> >>>> History has shown that this particular rule is unenforcable. >>>> >>>> Signed-off-by: malc<av1...@comtv.ru> >>>> --- >>>> CODING_STYLE | 11 ++++++----- >>>> 1 files changed, 6 insertions(+), 5 deletions(-) >>>> >>> >>> Not again: >>> http://lists.nongnu.org/archive/html/qemu-devel/2009-12/msg00484.html >>> >>> There are plenty of ways to make the rule enforceable, for example we >>> could agree to start to revert commits which introduce new >>> CODING_STYLE violations. >>> >>> >> >> It seems to be possible to add a pre-applypatch script to the git hook >> directory, that will verify the commit and reject it if it doesn't >> comply with the coding rules. Of course it's possible to commit a patch >> anyway by using --no-verify. >> > > There are certain aspects of CODING_STYLE that I think are pretty important. > For instance, space vs. tabs can really screw things up for people that > have non-standard tabs. This is something that enforcing at patch > submission time seems to be really important. > > Type naming seems important too because it's often not isolated. IOW, a > poor choice in one file can end up polluting other files quickly that > require interacting. The result is a mess of naming styles. > > But something like braces around an if doesn't seem like it creates a big > problem. Most C programmers are used to seeing braces in some statements > and not other. Therefore, it's hard to argue that the code gets really > unreadable if this isn't strictly enforced. > > So really, I think the problem is that we're enforcing the words of > CODING_STYLE instead of the intent. The intent of CODING_STYLE is to > improve the readability of the code. I think it requires a certain amount > of taste to be applied.
The problem with that approach is that CODING_STYLE is not written like that at all. All four requirements equally state that they describe QEMU coding style. There is also no room left for interpretation: "Every indented statement is braced; even if the block contains just one statement."