Re: [PATCH 1/2] submodule: port subcommand 'set-branch' from shell to C

[Kaartic Sivaraam <kaartic.sivaraam@gmail.com>]

-Cc: chriscool@tuxfamily.org (seems redundant; Also, .mailmap confirms 
that christian.couder@gmail.com is Christian's preference)

On 14-05-2020 01:47, Shourya Shukla wrote:
> 
> The extra '$branch' on line 752 was because of Christian's help after
> reference from TLDP's Parameter Subsitution documentation:
> https://www.tldp.org/LDP/abs/html/parameter-substitution.html
>

For those who lack the context, during the conversion of the script 
Shourya faced an issue where the '--branch' argument did not work as 
expected. He described the issue in a private e-mail where Christian 
pointed out the following (quoting his reply hoping he doesn't mind):

 > On Tue, May 12, 2020 at 5:55 PM Christian Couder
<christian.couder@gmail.com> wrote:
 >>
 >> In your commit (in submodule.sh line 781) there is:
 >>
 >>         `git ${wt_prefix:+-C "$wt_prefix"} ${prefix:+--super-prefix
 >> "$prefix"} submodule--helper set-branch ${GIT_QUIET:+--quiet}
 >> ${branch:+--branch} ${default:+--default} -- "$@"`
 >
 > Actually the issue might come from the above. I think it should use 
${branch:+--branch $branch} instead of ${branch:+--branch}.
 >
 > See: https://www.tldp.org/LDP/abs/html/parameter-substitution.html

That's why Shourya mentions the '$branch' as extra. Of course, that's 
how it is supposed to be in the first place :)

-- 
Sivaraam