Re: [PATCH 1/1] git-prompt.sh: update shell variable instructions.

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On Wed, Jun 05, 2019 at 08:06:07AM -0700, Edward D'Souza via GitGitGadget wrote:
> From: Edward D'Souza <edsouza@xxxxxxxxx>
> 
> Clarify the need to set variables like GIT_PS1_SHOWDIRTYSTATE before
> "source ~/.git-prompt.sh" is executed in your shell init process.
> 
> If you set these preferences too late i.e. after .git-prompt.sh executes,
> they will silently fail to take effect.

I can't reproduce this.  It doesn't matter when these variables are
set, because __git_ps1() checks them each time it is invoked, it
always has.

  $ echo $GIT_PS1_SHOWSTASHSTATE $GIT_PS1_SHOWDIRTYSTATE $GIT_PS1_SHOWUNTRACKEDFILES
  
  /tmp/repo$ git init
  Initialized empty Git repository in /tmp/repo/.git/
  /tmp/repo (master)$ echo 1 >file
  /tmp/repo (master)$ git add file
  /tmp/repo (master)$ git commit -q -m initial
  /tmp/repo (master)$ echo 2 >file
  /tmp/repo (master)$ git stash 
  Saved working directory and index state WIP on master: 5ae0413 initial
  /tmp/repo (master)$ echo 3 >file
  /tmp/repo (master)$ git add file
  /tmp/repo (master)$ echo 4 >file
  /tmp/repo (master)$ >untracked
  /tmp/repo (master)$ GIT_PS1_SHOWSTASHSTATE=y
  /tmp/repo (master $)$ GIT_PS1_SHOWDIRTYSTATE=y
  /tmp/repo (master *+$)$ GIT_PS1_SHOWUNTRACKEDFILES=y
  /tmp/repo (master *+$%)$ unset GIT_PS1_SHOWSTASHSTATE GIT_PS1_SHOWDIRTYSTATE GIT_PS1_SHOWUNTRACKEDFILES
  /tmp/repo (master)$ 

Note that some of these status indicators are controlled not only by
environment variables but by corresponding 'bash.<indicator>' config
variables as well.  Even if the env var is set to enable the status
indicator globally, the config setting can still override that to
allow disabling potentially expensive indicators on a per-repo basis.
Is it possible that you had e.g. 'bash.showDirtyState = false' in your
config somewhere?

Anyway, even if the issue were real, this patch goes in the wrong
direction: instead of requiring a workaround from users, we should
rather fix the issue.

> Signed-off-by: Edward D'Souza <edsouza@xxxxxxxxx>
> ---
>  contrib/completion/git-prompt.sh | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/contrib/completion/git-prompt.sh b/contrib/completion/git-prompt.sh
> index c6cbef38c2..ab5bcc0fec 100644
> --- a/contrib/completion/git-prompt.sh
> +++ b/contrib/completion/git-prompt.sh
> @@ -35,6 +35,11 @@
>  #
>  # The prompt status always includes the current branch name.
>  #
> +# The prompt can be customized by setting various shell variables
> +# (GIT_PS1_SHOWDIRTYSTATE, GIT_PS1_SHOWSTASHSTATE, etc.), which are described
> +# below. Make sure that these variables get set *before* the
> +# "source ~/.git-prompt.sh" line from step 2 (above) runs.
> +#
>  # In addition, if you set GIT_PS1_SHOWDIRTYSTATE to a nonempty value,
>  # unstaged (*) and staged (+) changes will be shown next to the branch
>  # name.  You can configure this per-repository with the
> -- 
> gitgitgadget




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