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Mon, 29 Apr 2024 09:33:02 -0400 Received: from submission (posteo.de [185.67.36.169]) by mout02.posteo.de (Postfix) with ESMTPS id 50EC8240101 for ; Mon, 29 Apr 2024 15:32:57 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.net; s=2017; t=1714397577; bh=Mg+EdKycOvuQny1NNMlyTqOkQIcK0RCMfJFkud/cAz4=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type: From; b=e7L2c1xetez/l9+O7p4lP5Lz3qmYnTuY8LunWE4vckrljuT5y+xpcb9T3fzUBYGDG CVKxMdbEupUbQ0I9jHEOljpYHpgd198KkfV5Gl52HW2XX6tjVK49kKJvoJ94IIU8lF 5//6qRZTko85ZVYuTkA7byhXH7NHkh+1tF659E4XOAUYVUcXqDeZgd4UO/kfv0lQtr yJfqds0Gd6JBZAkiN+DtmbrgW5WYoYbeWFXCjU69Psigz7U+KmTWH22cz8PBac0gbS MLxtmB4o8fdFhEhRHbM1KYMJKSw5G8ReaRJ3oFnmtAdukMFZ5di1MQzGqSq3fJFY4E EWBK81BX2s84A== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4VSkm76WcQz6tlh; Mon, 29 Apr 2024 15:32:55 +0200 (CEST) From: Ihor Radchenko To: Max Nikulin Cc: emacs-orgmode@gnu.org Subject: Re: [DISCUSSION] The meaning of :cmdline header argument across babel backends In-Reply-To: References: <18f01342a2f.124ad27612732529.8693431365849276517@excalamus.com> <871q6suv7z.fsf@localhost> Date: Mon, 29 Apr 2024 13:33:59 +0000 Message-ID: <874jbkcmyg.fsf@localhost> MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=185.67.36.66; envelope-from=yantar92@posteo.net; helo=mout02.posteo.de X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-orgmode@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "General discussions about Org-mode." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-orgmode-bounces+larch=yhetil.org@gnu.org Sender: emacs-orgmode-bounces+larch=yhetil.org@gnu.org X-Migadu-Flow: FLOW_IN X-Migadu-Country: US X-Migadu-Spam-Score: -6.60 X-Spam-Score: -6.60 X-Migadu-Queue-Id: 6D662670F8 X-Migadu-Scanner: mx11.migadu.com X-TUID: i9unM/EMXxzh Max Nikulin writes: > It is documented as > " :cmdline ... [arg_n] > > Use the :cmdline header arg to pass arguments to a shell command." > > However current implementation allows code injection through args, > including a trivial one > > #+header-arg: :results verbatim > #+begin_src sh :cmdline 1 ; touch /tmp/not-an-arg > printf '%s\n' "$@" > #+end_src > > #+RESULTS: > : 1 > > "touch ..." *are not arguments of the script*. So users should be > careful to get documented behavior. I do not see any way to address this concern without introducing feature regression. So, let's keep things as they are and maybe document that :cmdline ... is passed verbatim as shell command. >> What might be done is introducing _two_ different header arguments - one >> for interpreter switches, and another for script/program switches. >> >> Say, :interpreter-cmdline and :script-cmdline. >> Then, we can call the current :cmdline behaviour "dwim" and allow users >> to be more explicit if necessary. > > It is too easy to confuse org-babel, so "dwim" works in simple cases > only. Independent header arguments make things more clear, I would > prefer :script-args. The question is whether they should be interpreted > by shell (flexibility and shooting feet) or more strict syntax `("hello > world" 1 a) should be used. I like :script-args. The counterpart should then be :interpreter-args? The point of "dwim" is mostly to keep backwards-compatibility. We may discourage :cmdline for non-trivial cases. More strict syntax with '( ...) is possible for the new header arguments, not for the old :cmdline where the existing backends may not be able to understand the list format. -- Ihor Radchenko // yantar92, Org mode contributor, Learn more about Org mode at . Support Org development at , or support my work at