undef/git-commit-vandalism
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git-prompt: preserve value of $? inside shell prompt

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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 <dot@dotat.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Tony Finch 2014-12-22 18:09:25 +00:00 committed by Junio C Hamano
parent bef111d0a5
commit eb443e3b39
1 changed files with 4 additions and 0 deletions
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4
contrib/completion/git-prompt.sh
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@ -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
}