PRO from me, for all the reasons mentioned by legoktm

On 12 February 2016 at 19:26, Legoktm <legoktm.wikipe...@gmail.com> wrote:

> Hi,
>
> On 02/12/2016 07:27 AM, Daniel Kinzler wrote:
> > Now that we target PHP 5.5, some people are itching to make use of some
> new
> > language features, like the new array syntax, e.g.
> > <https://gerrit.wikimedia.org/r/#/c/269745/>.
> >
> > Mass changes like this, or similar changes relating to coding style,
> tend to
> > lead to controversy. I want to make sure we have a discussion about this
> here,
> > to avoid having the argument over and over on any such patch.
> >
> > Please give a quick PRO or CON response as a basis for discussion.
> >
> > In essence, the discussion boils down to two conflicting positions:
> >
> > PRO: do mass migration to the new syntax, style, or whatever, as soon as
> > possible. This way, the codebase is in a consistent form, and that form
> is the
> > one we agreed is the best for readability. Doing changes like this is
> > gratifying, because it's low hanging fruit: it's easy to do, and has
> large
> > visible impact (well ok, visible in the source).
>
> I'll offer an alternative, which is to convert all of them at once using
> PHPCS and then enforce that all new patches use [] arrays. You then only
> have one commit which changes everything, not hundreds you have to go
> through while git blaming or looking in git log.
>
> > CON: don't do mass migration to new syntax, only start using new styles
> and
> > features when touching the respective bit of code anyway. The argument
> is here
> > that touching many lines of code, even if it's just for whitespace
> changes,
> > causes merge conflicts when doing backports and when rebasing patches.
> E.g. if
> > we touch half the files in the codebase to change to the new array
> syntax, who
> > is going to manually rebase the couple of hundred patches we have open?
>
> There's no need to do it manually. Just tell people to run the phpcs
> autofixer before they rebase, and the result should be identical to
> what's already there. And we can have PHPCS run in the other direction
> for backports ([] -> array()).
>
> But if we don't do that, people are going to start converting things
> manually whenever they work on the code, and you'll still end up with
> hundreds of open patches needing rebase, except it can't be done
> automatically anymore.
>
> > My personal vote is CON. No rebase hell please! Changing to the syntax
> doesn't
> > buy us anything.
>
> Consistency buys us a lot. New developers won't be confused on whether
> to use [] or array(). It makes entry easier for people coming from other
> languages where [] is used for lists.
>
> I think you're going to end up in rebase hell regardless, so we should
> rip off the bandaid quickly and get it over with, and use the automated
> tools we have to our advantage.
>
> So, if we're voting, I'm PRO.
>
> -- Legoktm
>
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