Re: [dpdk-dev] [PATCH RFC] devtools: increase default line length to 100

[Bruce Richardson <bruce.richardson@intel.com>]

On Mon, Jun 08, 2020 at 12:17:23PM -0700, Stephen Hemminger wrote:
> On Mon,  8 Jun 2020 17:46:40 +0100
> Bruce Richardson <bruce.richardson@intel.com> wrote:
> 
> > Rather than continuing to recommend an 80-char line limit, let's take a hint
> > from the Linux kernel[1] and aim for an 100-char recommended limit instead.
> > 
> > [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bdc48fa11e46f867ea4d75fa59ee87a7f48be144
> > 
> > Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
> > ---
> >  devtools/checkpatches.sh                 | 2 +-
> >  doc/guides/contributing/coding_style.rst | 2 +-
> >  2 files changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/devtools/checkpatches.sh b/devtools/checkpatches.sh
> > index 158087f1c..4970ed830 100755
> > --- a/devtools/checkpatches.sh
> > +++ b/devtools/checkpatches.sh
> > @@ -15,7 +15,7 @@ VALIDATE_NEW_API=$(dirname $(readlink -f $0))/check-symbol-change.sh
> >  # Codespell can also be enabled by setting DPDK_CHECKPATCH_CODESPELL to a valid path
> >  # to a dictionary.txt file if dictionary.txt is not in the default location.
> >  codespell=${DPDK_CHECKPATCH_CODESPELL:-enable}
> > -length=${DPDK_CHECKPATCH_LINE_LENGTH:-80}
> > +length=${DPDK_CHECKPATCH_LINE_LENGTH:-100}
> >  
> >  # override default Linux options
> >  options="--no-tree"
> > diff --git a/doc/guides/contributing/coding_style.rst b/doc/guides/contributing/coding_style.rst
> > index 4efde93f6..1db3a7bbe 100644
> > --- a/doc/guides/contributing/coding_style.rst
> > +++ b/doc/guides/contributing/coding_style.rst
> > @@ -21,7 +21,7 @@ The rules and guidelines given in this document cannot cover every situation, so
> >  * In the case of creating new files, the style should be consistent within each file in a given directory or module.
> >  * The primary reason for coding standards is to increase code readability and comprehensibility, therefore always use whatever option will make the code easiest to read.
> >  
> > -Line length is recommended to be not more than 80 characters, including comments.
> > +Line length is recommended to be not more than 100 characters, including comments.
> >  [Tab stop size should be assumed to be 8-characters wide].
> >  
> >  .. note::
> 
> I would even support going to 120 characters.
> 
> Acked-by: Stephen Hemminger <stephen@networkplumber.org>

I think 100 is enough.

In my case, I have a 1080p 24" monitor, and with two terminals side-by-side
100 characters just fits inside each vim window. Going to 120 would be fine
for single terminal at a time, but I would find awkward for e.g.
side-by-side diff comparison in meld etc.