[PATCH] coding-style: Document 80 chars limit for line length

[Thomas Huth]

On 02/12/2020 12.20, Michal Privoznik wrote:
> On 12/2/20 11:52 AM, Daniel P. Berrangé wrote:
>> On Mon, Nov 30, 2020 at 01:58:24PM +0100, Michal Privoznik wrote:
>>> The idea is to have it like a soft limit: if possible then break
>>> lines, if not then have a long line instead of some creative
>>> approach.
>>>
>>> Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
>>> ---
>>>   docs/coding-style.rst | 14 +++++++++++++-
>>>   1 file changed, 13 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/docs/coding-style.rst b/docs/coding-style.rst
>>> index cfd7b16638..813128bfb6 100644
>>> --- a/docs/coding-style.rst
>>> +++ b/docs/coding-style.rst
>>> @@ -131,7 +131,7 @@ around operators and keywords:
>>>       indent-libvirt()
>>>     {
>>> -    indent -bad -bap -bbb -bli4 -br -ce -brs -cs -i4 -l75 -lc75 \
>>> +    indent -bad -bap -bbb -bli4 -br -ce -brs -cs -i4 -l80 -lc80 \
>>
>> The indent tool enforces line length no matter what....
> 
> Yeah, it's not perfect, but I am no friend with gnu indent so I don't know
> how to specify hard and soft limits and quick skim through manpage did not
> suggest it's possible.
> 
>>
>>>              -sbi4 -psl -saf -sai -saw -sbi4 -ss -sc -cdw -cli4 -npcs -nbc \
>>>              --no-tabs "$@"
>>>     }
>>> @@ -141,6 +141,18 @@ further, by piping it through ``expand -i``, since
>>> some leading
>>>   TABs can get through. Usually they're in macro definitions or
>>>   strings, and should be converted anyhow.
>>>   +The recommended length for lines is 80 characters, but common sense
>>> +should prevail. It may get tricky around some names (because of how
>>> +Libvirt constructs names for functions/enums/etc.)
>>
>> but this is a mere recommendation.
>>
>> IMHO we should say
>>
>>   "The maximum permitted line length is 100 characters, but lines
>>    should aim to be approximately 80 characters."
>>
>> and then use -l100 for indent
> 
> Works for me. Thomas, since you suggested we document this, does this
> wording sound reasonable to you? If so, I will post v2.

Yes, I think using -l100 for indent and saying that 80 is preferred is
better! Thanks for tackling this!

 Thomas