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Re: [PATCH] completion: remote set-* <name> and <branch>

From
Junio C Hamano <gitster@pobox.com>
Date
Feb 21, 2012, 22:23 UTC
Message-ID
<7v8vjvg71s.fsf@alter.siamese.dyndns.org>
In-Reply-To
<CAKHWUkZjQYnf=LwS_RC-E_7gV73AzbWjxs33E5-FL25s6_qX4g@mail.gmail.com>
Philip Jägenstedt <philip@foolip.org> writes:
> Thanks. Perhaps git-completion.bash should not say "Send all patches
> to the current maintainer" and simply defer to SubmittingPatches?
I see you did this in your follow-up patch.  Thanks.
Show 24 quoted lines
>>>  {
>>>       local cur_="$cur" cmd="${words[1]}"
>>>       local i c=2 remote="" pfx="" lhs=1 no_complete_refspec=0
>>> +     if [ "$cmd" = "remote" ]; then
>>> +             c=$((++c))
>>> +     fi
>>
>> I don't know about others, but auto-incrementing a variable and assigning
>> the result to the same variable, while not wrong at all, hurts my brain.
>>
>>        c=$(($c + 1))
>>
>> is far more readable and does not suggest there is any funky magic
>> involved.  Also it is a good habit to get into not to omit $ from
>> variables inside arithmetic substitution, even though bash allows it and
>> this script is meant to be consumed only by shells that understand this
>> bash-ism.
>>
>> I do not know offhand if zsh groks it, but the point is that you do not
>> have to worry about it if you write "$(($c+1))" instead of "$((c+1))".
>
> CodingGuidlines suggests to follow local convention, which was
> "c=$((++c))". This file also uses "++n", "i++" and "((i++))". I will
> send a v2 patch that normalizes these, open to discussion of course.

OK, it was my mistake to suggest $c++ in this file; it liberally uses dollar-less variables, and I agree that it is a good idea to stick to that local convention.

But I think you went too far in your follow-up patch to make the increment and decrement uniform.

"i++" is so much easier on the eye unless you must use "++i" in order to use the value of the incremented "i" in an expression, and the changes to turn existing instances of free-standing "i++" to "++i" done only for the side effect of incrementing the variables look totally backwards.

Although I do not deeply care. Just leaving the new one as you originally wrote, i.e.

	c=$((++c))
would have been easier to review for the area experts, I would think.
Previous: Thomas RastNext: SZEDER Gábor
Message 13 of 14 in “completion: remote set-* <name> and <branch>”
  1. completion: remote set-* <name> and <branch>Philip Jägenstedt, Feb 18, 2012
  2. Junio C HamanoFeb 20, 2012
  3. Philip JägenstedtFeb 21, 2012
  4. completion: remote set-* <name> and <branch>Philip Jägenstedt, Feb 21, 2012
  5. SZEDER GáborFeb 22, 2012
  6. completion: remote set-* <name> and <branch>Philip Jägenstedt, Feb 22, 2012
  7. 1/4 completion: remote set-* <name> and <branch>Philip Jägenstedt, Feb 22, 2012
  8. 2/4 completion: normalize increment/decrement stylePhilip Jägenstedt, Feb 22, 2012
  9. Junio C HamanoFeb 22, 2012
  10. 3/4 completion: remove stale "to submit patches" documentationPhilip Jägenstedt, Feb 22, 2012
  11. 4/4 completion: use tabs for indentationPhilip Jägenstedt, Feb 22, 2012
  12. Thomas RastFeb 22, 2012
  13. Junio C HamanoFeb 21, 2012
  14. SZEDER GáborFeb 22, 2012

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