Re: contrib/completion/git-completion.bash: declare -g is not portable

From: Lucas Werkmeister <mail@lucaswerkmeister.de>
Date: Feb 4, 2018, 11:48 UTC
Message-ID: <f8500cbd-dd40-690b-22e9-a9f6a7d1eb8f@lucaswerkmeister.de>
In-Reply-To: <CAPig+cQXT1ov4MjzSzqiLBzr4wN1XcP7aSxMP+_dhtWtYwhDAA@mail.gmail.com>

On 04.02.2018 10:57, Eric Sunshine wrote:

Show 21 quoted lines

> On Sun, Feb 4, 2018 at 4:45 AM, Duy Nguyen <pclouds@gmail.com> wrote:
>> On Sun, Feb 4, 2018 at 12:20 AM, Torsten Bögershausen <tboegi@web.de> wrote:
>>> After running t9902-completion.sh on Mac OS I got a failure
>>> in this style:
>>
>> Sorry I was new with this bash thingy. Jeff already answered this (and
>> I will fix it in the re-roll) but just for my own information, what
>> bash version is shipped with Mac OS?
> 
> The MacOS bash is very old; note the copyright date:
> 
>     % /bin/bash --version
>     GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin16)
>     Copyright (C) 2007 Free Software Foundation, Inc.
> 
> A recent bash installed manually (not from Apple):
> 
>     % /usr/local/bin/bash --version
>     GNU bash, version 4.4.18(1)-release (x86_64-apple-darwin16.7.0)
>     Copyright (C) 2016 Free Software Foundation, Inc.
>

Specifically, Apple ships the latest version of Bash 3.x, which is the last version published under the GPLv2+ – Bash 4.x switched to GPLv3+. Users can install newer Bash versions themselves, e. g. using Homebrew, but that doesn’t help us here.