Re: [PATCH] completion: suppress unwanted unescaping of `read`

[Junio C Hamano <gitster@pobox.com>]

Koichi Murase <myoga.murase@gmail.com> writes:

> From: Edwin Kofler <edwin@kofler.dev>
>
> The function `__git_eread`, which reads the first line from the file,
> calls the `read` builtin without passing the flag option `-r`.  When
> the `read` builtin is called without the flag `-r`, it processes the
> backslash escaping in the text that it reads.  For this reason, it is
> generally considered the best practice to always use the `read`
> builtin with flag `-r` unless one intensionally processes the
> backslash escaping.  For the present case in git-prompt.sh, in fact,
> all the occurrences of the calls of `__git_eread` intend to read the
> literal content of the first lines.
>
> To make it read the first line literally, pass the flag `-r` to the
> `read` builtin in the function `__git_eread`.
>
> Signed-off-by: Edwin Kofler <edwin@kofler.dev>
> Signed-off-by: Koichi Murase <myoga.murase@gmail.com>
> ---
>  contrib/completion/git-prompt.sh | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/contrib/completion/git-prompt.sh b/contrib/completion/git-prompt.sh
> index 9c10690a22..49dd69bb84 100644
> --- a/contrib/completion/git-prompt.sh
> +++ b/contrib/completion/git-prompt.sh
> @@ -298,7 +298,7 @@ __git_ps1_colorize_gitstring ()
>  # variable, in that order.
>  __git_eread ()
>  {
> -	test -r "$1" && IFS=$'\r\n' read "$2" <"$1"
> +	test -r "$1" && IFS=$'\r\n' read -r "$2" <"$1"
>  }
>  
>  # see if a cherry-pick or revert is in progress, if the user has committed a

Perfect.  Will queue.  Thanks.