Re: [PATCH v2 1/1] check-non-portable-shell.pl: Quoted `wc -l` is not portable

From: Eric Sunshine <sunshine@sunshineco.com>
Date: Dec 17, 2017, 00:06 UTC
Message-ID: <CAPig+cQtcNhz3Z+iZRWx1PjnJwWeeo19gUNQRHOcJyxEgfUDsQ@mail.gmail.com>
In-Reply-To: <20171216195246.10445-1-tboegi@web.de>

On Sat, Dec 16, 2017 at 2:52 PM,  <tboegi@web.de> wrote:

Show 16 quoted lines

> [...]
> Add a check in check-non-portable-shell.pl to find '"' between
> `wc -l` and '=' and hint the user about test_line_count().
>
> Reviewed-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
> Signed-off-by: Torsten Bögershausen <tboegi@web.de>
> ---
> diff --git a/t/check-non-portable-shell.pl b/t/check-non-portable-shell.pl
> index 03dc9d2852..fadbb1e5a7 100755
> --- a/t/check-non-portable-shell.pl
> +++ b/t/check-non-portable-shell.pl
> @@ -21,6 +21,7 @@ while (<>) {
>         /^\s*declare\s+/ and err 'arrays/declare not portable';
>         /^\s*[^#]\s*which\s/ and err 'which is not portable (please use type)';
>         /\btest\s+[^=]*==/ and err '"test a == b" is not portable (please use =)';
> +       /\bwc -l.*"\s*=/ and err '`"$(wc -l)"` is not portable, please use test_line_count';

Nit: Every other "please use" suggestion is parenthesized; for
consistency, this probably ought to be, as well.

>         /\bexport\s+[A-Za-z0-9_]*=/ and err '"export FOO=bar" is not portable (please use FOO=bar && export FOO)';