Tony Finch <d...@dotat.at> writes:
> If you have a prompt which displays the command exit status,
> __git_ps1 without this change corrupts it, although it has
> the correct value in the parent shell:
>
> ~/src/git (master) 0 $ set | grep ^PS1
> PS1='\w$(__git_ps1) $? \$ '
> ~/src/git (master) 0 $ false
> ~/src/git (master) 0 $ echo $?
> 1
> ~/src/git (master) 0 $
>
> There is a slightly ugly workaround:
>
> ~/src/git (master) 0 $ set | grep ^PS1
> PS1='\w$(x=$?; __git_ps1; exit $x) $? \$ '
> ~/src/git (master) 0 $ false
> ~/src/git (master) 1 $
>
> This change makes the workaround unnecessary.
>
> Signed-off-by: Tony Finch <d...@dotat.at>
> ---
> contrib/completion/git-prompt.sh | 4 ++++
> 1 file changed, 4 insertions(+)
>
> I hope that explains it properly :-)
Yes. I wouldn't have spent 20 minutes experimenting with various
hypothetical use cases if the above were there in the first place.
Thanks. Will queue.
> diff --git a/contrib/completion/git-prompt.sh
> b/contrib/completion/git-prompt.sh
> index c5473dc..5fe69d0 100644
> --- a/contrib/completion/git-prompt.sh
> +++ b/contrib/completion/git-prompt.sh
> @@ -288,6 +288,7 @@ __git_eread ()
> # In this mode you can request colored hints using
> GIT_PS1_SHOWCOLORHINTS=true
> __git_ps1 ()
> {
> + local exit=$?
> local pcmode=no
> local detached=no
> local ps1pc_start='\u@\h:\w '
> @@ -511,4 +512,7 @@ __git_ps1 ()
> else
> printf -- "$printf_format" "$gitstring"
> fi
> +
> + # preserve exit status
> + return $exit
> }
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