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From: Matthieu Moy <Matthieu.Moy@grenoble-inp•fr>
To: "Kyle J. McKay" <mackyle@gmail•com>
Cc: git@vger•kernel.org, Junio C Hamano <gitster@pobox•com>,
	Ramkumar Ramachandra <artagnon@gmail•com>,
	Eric Sunshine <sunshine@sunshineco•com>
Subject: Re: [PATCH 1/3] rebase: avoid non-function use of "return" on FreeBSD
Date: Sat, 12 Apr 2014 19:07:28 +0200	[thread overview]
Message-ID: <vpq38hi8oj3.fsf@anie.imag.fr> (raw)
In-Reply-To: <D3916156-0F84-4DD2-833F-64DF675325D3@gmail.com> (Kyle J. McKay's message of "Fri, 11 Apr 2014 16:08:53 -0700")

"Kyle J. McKay" <mackyle@gmail•com> writes:

> On Apr 11, 2014, at 10:30, Matthieu Moy wrote:
>> "Kyle J. McKay" <mackyle@gmail•com> writes:
>>
>>> There are already nested functions with file inclusion between both
>>> levels of nesting in git-rebase--interactive.sh and git-rebase--
>>> merge.sh now, so it's not introducing anything new.
>>
>> OK, so it's less serious than I thought. But still, we're
>> introducing a
>> function with 3 levels of nesting, split accross files, in an area
>> where
>> we know that at least one shell is buggy ...
>
> Currently in maint:
>
> The current code in maint does this:
>
> git-rebase.sh: top-level
>   git-rebase.sh: run_specific_rebase()
>     git-rebase.sh: run_specific_rebase_internal() -- contains "dot"
>       git-rebase--interactive.sh: top-level (using --continue or -- 
> skip)
>         git-rebase--interactive.sh: do_rest
>           git-rebase--interactive.sh: do_next

You're confusing function calls and function nesting. do_rest calls
do_next, but the definition of do_next is not nested within do_rest.

When I talk about nested function, I mean

f() {
	g() {
		...
	}
}

Obviously, having functions call each other is not an issue. That's what
functions are meant to be.

Now, having run_specific_rebase_internal include a file which defines
functions which contain nested functions _is_ something I find weird. It
both stresses the shell in a buggy area and makes the code harder to
understand.

> The problem with these changes, particularly the git-rebase-- 
> interactive.sh one is that a bunch of code is still run when the file
> is "dot" included.

Function definitions, and variables assignments. Is it so much of an
issue?

What's the difference between a function definition or variable
assignment within git-rebase--*.sh and within git-rebase.sh?

-- 
Matthieu Moy
http://www-verimag.imag.fr/~moy/

  reply	other threads:[~2014-04-12 17:10 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-11  8:28 [PATCH 0/3] Fix support for FreeBSD's /bin/sh Kyle J. McKay
2014-04-11  8:28 ` [PATCH 1/3] rebase: avoid non-function use of "return" on FreeBSD Kyle J. McKay
2014-04-11  8:48   ` Matthieu Moy
2014-04-11 14:29     ` Kyle J. McKay
2014-04-11 17:30       ` Matthieu Moy
2014-04-11 23:08         ` Kyle J. McKay
2014-04-12 17:07           ` Matthieu Moy [this message]
2014-04-13  2:45             ` Kyle J. McKay
2014-04-14  8:24               ` Matthieu Moy
2014-04-14 22:28                 ` Junio C Hamano
2014-04-14 22:51   ` Junio C Hamano
2014-04-16  4:32     ` Kyle J. McKay
2014-04-16 16:47       ` Junio C Hamano
2014-04-16 18:11         ` Junio C Hamano
2014-04-16 18:23           ` Junio C Hamano
2014-04-17  0:41           ` Kyle J. McKay
2014-04-17 17:15             ` Junio C Hamano
2014-04-18  0:26               ` Kyle J. McKay
2014-04-11  8:28 ` [PATCH 2/3] Revert "rebase: fix run_specific_rebase's use of "return" on FreeBSD" Kyle J. McKay
2014-04-11  8:28 ` [PATCH 3/3] test: fix t5560 on FreeBSD Kyle J. McKay
2014-04-11 20:52   ` Junio C Hamano

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