From: Jeff King <peff@peff.net>
To: Junio C Hamano <gitster@pobox.com>
Cc: git@vger.kernel.org
Subject: Re: [PATCH 6/6] t: teach lint that RHS of 'local VAR=VAL' needs to be quoted
Date: Sat, 6 Apr 2024 21:43:44 -0400 [thread overview]
Message-ID: <20240407014344.GF1085004@coredump.intra.peff.net> (raw)
In-Reply-To: <20240406000902.3082301-7-gitster@pobox.com>
On Fri, Apr 05, 2024 at 05:09:02PM -0700, Junio C Hamano wrote:
> Teach t/check-non-portable-shell.pl that right hand side of the
> assignment done with "local VAR=VAL" need to be quoted. We
> deliberately target only VAL that begins with $ so that we can catch
>
> - $variable_reference and positional parameter reference like $4
> - $(command substitution)
> - ${variable_reference-with_magic}
>
> while excluding
>
> - $'\n' that is a bash-ism freely usable in t990[23]
> - $(( arithmetic )) whose result should be $IFS safe.
> - $? that also is $IFS safe
Hmm. Just porting over my comment from the other thread (before I
realized you'd written this series), this misses:
local foo=bar/$1
etc. Should we look for the "$" anywhere on the line? I doubt we can get
things foolproof, but requiring somebody to quote:
local foo=$((1+2))
does not seem like the worst outcome. I dunno.
-Peff
next prev parent reply other threads:[~2024-04-07 1:43 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-06 0:08 [PATCH 0/6] local VAR="VAL" Junio C Hamano
2024-04-06 0:08 ` [PATCH 1/6] CodingGuidelines: describe "export VAR=VAL" rule Junio C Hamano
2024-04-06 5:11 ` Eric Sunshine
2024-04-06 5:47 ` Junio C Hamano
2024-04-06 9:15 ` Andreas Schwab
2024-04-06 17:03 ` Junio C Hamano
2024-04-06 17:34 ` Eric Sunshine
2024-04-06 0:08 ` [PATCH 2/6] CodingGuidelines: quote assigned value in 'local var=$val' Junio C Hamano
2024-04-06 1:29 ` rsbecker
2024-04-06 2:29 ` Junio C Hamano
2024-04-06 5:16 ` Eric Sunshine
2024-04-06 5:40 ` Junio C Hamano
2024-04-06 0:08 ` [PATCH 3/6] t: local VAR="VAL" (quote positional parameters) Junio C Hamano
2024-04-08 15:30 ` Patrick Steinhardt
2024-04-08 17:23 ` Junio C Hamano
2024-04-06 0:09 ` [PATCH 4/6] t: local VAR="VAL" (quote command substitution) Junio C Hamano
2024-04-06 0:09 ` [PATCH 5/6] t: local VAR="VAL" (quote ${magic-reference}) Junio C Hamano
2024-04-06 0:09 ` [PATCH 6/6] t: teach lint that RHS of 'local VAR=VAL' needs to be quoted Junio C Hamano
2024-04-07 1:43 ` Jeff King [this message]
2024-04-08 17:31 ` Junio C Hamano
2024-04-08 20:40 ` Jeff King
2024-04-06 0:23 ` [PATCH 7/6] t0610: local VAR="VAL" fix Junio C Hamano
2024-04-06 0:28 ` [PATCH 8/6] t1016: " Junio C Hamano
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