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AGHT+IFpeb1lAN4lxnZ4huePs98/UnLwqx+13yVtQMPccKZx3l3eJD53czlHxevImt0gVzEcj1ChXg== X-Received: by 2002:a2e:900d:0:b0:2bf:b0d3:20f9 with SMTP id h13-20020a2e900d000000b002bfb0d320f9mr4468009ljg.5.1699552163208; Thu, 09 Nov 2023 09:49:23 -0800 (PST) Received: from [10.0.0.194] ([37.186.169.33]) by smtp.gmail.com with ESMTPSA id i20-20020a05600c2d9400b004063cd8105csm2720908wmg.22.2023.11.09.09.49.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Nov 2023 09:49:22 -0800 (PST) Message-ID: Subject: Re: [PATCH nft 01/12] tests: shell: export DIFF to use it from feature scripts From: Thomas Haller To: Pablo Neira Ayuso , netfilter-devel@vger.kernel.org Cc: fw@strlen.de Date: Thu, 09 Nov 2023 18:49:21 +0100 In-Reply-To: <20231109162304.119506-2-pablo@netfilter.org> References: <20231109162304.119506-1-pablo@netfilter.org> <20231109162304.119506-2-pablo@netfilter.org> Autocrypt: addr=thaller@redhat.com; prefer-encrypt=mutual; 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 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.50.0 (3.50.0-1.fc39) MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org On Thu, 2023-11-09 at 17:22 +0100, Pablo Neira Ayuso wrote: > export DIFF so it can be used from feature scripts to probe the > kernel. >=20 > +DIFF=3D"$(which diff)" > +if [ ! -x "$DIFF" ] ; then > + DIFF=3Dtrue > +fi > +export DIFF what is the purpose of having $DIFF variable at all? Why not require to have `diff` installed? Maybe that justification is somewhere in the history of the project. If so, could you drop one line in the commit message what the point is? Thomas