From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp1 ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms0.migadu.com with LMTPS id 4DMrERtXYGEOZgEAgWs5BA (envelope-from ) for ; Fri, 08 Oct 2021 16:35:07 +0200 Received: from aspmx1.migadu.com ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp1 with LMTPS id JVerCxtXYGElNwAAbx9fmQ (envelope-from ) for ; Fri, 08 Oct 2021 14:35:07 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 8D0142C60A for ; Fri, 8 Oct 2021 16:35:06 +0200 (CEST) Received: from localhost ([::1]:49088 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mYqxl-0004VU-LR for larch@yhetil.org; Fri, 08 Oct 2021 10:35:05 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57706) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mYqxi-0004VM-Bd for guix-patches@gnu.org; Fri, 08 Oct 2021 10:35:02 -0400 Received: from debbugs.gnu.org ([209.51.188.43]:40140) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mYqxh-00082N-QT for guix-patches@gnu.org; Fri, 08 Oct 2021 10:35:02 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1mYqxh-000604-NC for guix-patches@gnu.org; Fri, 08 Oct 2021 10:35:01 -0400 X-Loop: help-debbugs@gnu.org Subject: [bug#50967] file-like objects instead of gexps Resent-From: Andrew Tropin Original-Sender: "Debbugs-submit" Resent-CC: guix-patches@gnu.org Resent-Date: Fri, 08 Oct 2021 14:35:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 50967 X-GNU-PR-Package: guix-patches X-GNU-PR-Keywords: To: Xinglu Chen , Ludovic =?UTF-8?Q?Court=C3=A8s?= Cc: Oleg Pykhalov , 50967@debbugs.gnu.org Received: via spool by 50967-submit@debbugs.gnu.org id=B50967.163370366623008 (code B ref 50967); Fri, 08 Oct 2021 14:35:01 +0000 Received: (at 50967) by debbugs.gnu.org; 8 Oct 2021 14:34:26 +0000 Received: from localhost ([127.0.0.1]:51686 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mYqx7-0005z2-Qg for submit@debbugs.gnu.org; Fri, 08 Oct 2021 10:34:26 -0400 Received: from mail-lf1-f54.google.com ([209.85.167.54]:39699) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mYqx4-0005yl-VQ for 50967@debbugs.gnu.org; Fri, 08 Oct 2021 10:34:24 -0400 Received: by mail-lf1-f54.google.com with SMTP id n8so37923428lfk.6 for <50967@debbugs.gnu.org>; Fri, 08 Oct 2021 07:34:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=trop-in.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:in-reply-to:references:date:message-id :mime-version; bh=XQwoRQfzNoMnvCYH9BlfDV+50gj0VQq9ne6qOnXvdf4=; b=kL9sUBoLBPb2bP6ApoSlGCb8c6/LAiKoVcL/4XKzxiOWWc6oN8MK8IvE250u1cO+sW nxbWLyKqwzreswmL13FcCyyODteoMyaEsXFNaZiodOIGpqa9QIyDZWwmeOSGNS87Qb5h gibBLjKztgpWhV7Ms7ABHdX5DiVwo3aIHHjWVLhgU12gkL3wCPQh5i0kkRAiGxAs4lQy N0xnQeLw6TuHwp+vscKv2+/5RDguH8ZsgDgpMorWtV9gmhh5KCZZ3vmEA5egl6RoWIYZ SbtYuuONLiX703kpiOPlYOQB626vz/BYLffA8bFO+k6BHi2XIGmITDH45DMmoT/nvTK2 qXxw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:in-reply-to:references:date :message-id:mime-version; bh=XQwoRQfzNoMnvCYH9BlfDV+50gj0VQq9ne6qOnXvdf4=; b=1FTNx5RXX6Gv7FsLeaSxdnrZpPywOY7j4hPvUCg2GByxGfgN/N+9TIKNYz1WHQhZRO Vr585/zZ97PBPsjkgybpiwFmIVz3H0DaWxb3xOgdIaObRDN8eFTEq967Hc+jsQD7Nai7 4awMr93aJsjAA6TmnVFFeIOUUbW6ayS0/Tue+7ODkb4LWi8WZ7eZyKk5kZff8Ml6oKFk ynt8ynpoUsDGuc8/oMRp+M+fr5ib8UMWUf6XWLh3o/1sxpbwkkeW9HI4ri9U87ckTuQy 7nRT84S9eeOvAs/NOFDDa78kAmzi6wErV7Zh/CzcIcVTX7mWBZCMpMW2PIQjsZsa4dqy NMCA== X-Gm-Message-State: AOAM530zsHrv2X9V1FbN/W5GlT8dr2Z8o2yP+segQvORc9QsEdMBx9f4 b+dd0Qgf3Lk5W+AyiOlOp5Xd5w== X-Google-Smtp-Source: ABdhPJx73Wnm2J4qlqOtqNYdbjr+PaGLRwClU1hgu0gpLrIV7KRmzMQm7z/TOAhsWeLkHPBRA2+b+g== X-Received: by 2002:a2e:b050:: with SMTP id d16mr4090128ljl.183.1633703648479; Fri, 08 Oct 2021 07:34:08 -0700 (PDT) Received: from localhost (109-252-140-132.dynamic.spd-mgts.ru. [109.252.140.132]) by smtp.gmail.com with ESMTPSA id m4sm298987ljq.4.2021.10.08.07.34.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Oct 2021 07:34:07 -0700 (PDT) From: Andrew Tropin In-Reply-To: <87ee8vmxyo.fsf@yoctocell.xyz> References: <20211002163834.29583-1-go.wigust@gmail.com> <20211002163834.29583-13-go.wigust@gmail.com> <87pmsnnukj.fsf@yoctocell.xyz> <878rz8q42z.fsf_-_@gnu.org> <87czoilgbg.fsf@trop.in> <87ee8vmxyo.fsf@yoctocell.xyz> Date: Fri, 08 Oct 2021 17:34:04 +0300 Message-ID: <874k9rvb4z.fsf@trop.in> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: guix-patches@gnu.org List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-patches-bounces+larch=yhetil.org@gnu.org Sender: "Guix-patches" X-Migadu-Flow: FLOW_IN ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1633703706; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:resent-cc:resent-from:resent-sender: resent-message-id:in-reply-to:in-reply-to:references:references: list-id:list-help:list-unsubscribe:list-subscribe:list-post: dkim-signature; bh=XQwoRQfzNoMnvCYH9BlfDV+50gj0VQq9ne6qOnXvdf4=; b=IuvjcWgy6NfPml7lG3lfZfnjiWjwnc05b8UlYpEgit/ryck6fwcBjJdQphiHgKcHZxP78z 9QoSYW/Asmq71RRs8UPSTjJtGge78/g54z+F/ukm4gyYgT9M5AXEtS429Uj/rFBHlFgE/e OXJgO5VsfUTl9AmZ3gTlahmykAsbN3MxxFZXp8Vhnxtw+hcBTwFnuFsrXhSX+fcOIsDt5P QAvsME0MmFZ/G9iPfZS5JmvnDaalBDlFk42txSlzdm2euJ8vKuf97eIvFjEOVjETy8Eoyo MkC0OO0zwqIrYvrxiZrliZGvpBt4Aqs4XbbD/Tryq7bjY8SYpbEtSR8UDkYbOw== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1633703706; a=rsa-sha256; cv=none; b=dKt6Hmkf87U/SU/rEw2wfZ8iXHAui/Ket50j4zUCb7lssBdK+BIjjonbtR69jnLaT96lI7 /vtD2ZxrnElLISpUjeMHS0J+zl8VB6+xInvqX0L3gu1wCtnK1uAppFdQZICQcAgRbSBcXZ b0Xm1hUYGok/3tbshyoiwd3qgDRaYgmsELm3e+s9UuEcO28pJxyS4sB0QWSiTVRtPSsnbH q2Rr+q4s0ryIoqOAhAUj+UIOeM7rxQxJU7v444yoFBxJEC1b6hT1qj2TkhiHEW2wloHFK2 IejEwPjM8nQc4SuuvqXcAGVtLz2ePodauxkNN3tDE8rYVBknueGMMtXngS8q5A== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=trop-in.20210112.gappssmtp.com header.s=20210112 header.b=kL9sUBoL; spf=pass (aspmx1.migadu.com: domain of guix-patches-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-patches-bounces@gnu.org X-Migadu-Spam-Score: -0.91 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=trop-in.20210112.gappssmtp.com header.s=20210112 header.b=kL9sUBoL; dmarc=none; spf=pass (aspmx1.migadu.com: domain of guix-patches-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-patches-bounces@gnu.org X-Migadu-Queue-Id: 8D0142C60A X-Spam-Score: -0.91 X-Migadu-Scanner: scn1.migadu.com X-TUID: 1YA7XeOY1Pb8 --=-=-= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 2021-10-08 15:45, Xinglu Chen wrote: > On Wed, Oct 06 2021, Andrew Tropin wrote: > >> Imagine the following use case: I want to create a home service, which >> accepts a package (zsh plugin) and adds a code for loading this package >> to zshrc, currently it's implemented like that: >> >> https://git.sr.ht/~abcdw/rde/tree/69dd2baf0384c899a4a4f97bdac8bf0b6e499b= 82/item/gnu/home-services/shellutils.scm#L18 >> >> Exteding the service above with `(list zsh-autosuggestions)` will add >> the following line to zshrc: >> >> source /gnu/store/w7d43gk1qszplj9i0rkzqvzz6kp88qfm-zsh-autosuggestions-0= .7.0/share/zsh/plugins/zsh-autosuggestions/zsh-autosuggestions.zsh >> >> Or the same thing can be done manually by user: >> >> --8<---------------cut here---------------start------------->8--- >> (service >> home-zsh-service-type >> (home-zsh-configuration >> (zshrc >> (list >> #~(string-append "source " #$zsh-autosuggestions "/share/zs../..ions= .zsh") >> ;; or >> "source \\" >> (file-append zsh-autosuggestions "/share/zs../..ions.zsh"))))) >> --8<---------------cut here---------------end--------------->8--- >> >> gexps returns a string, file-like object returns a path to the file in >> the store, kinda expected behavior. Both implementations looks quite >> simple. >> >> >> Now I'll try to reimplement it with file-like objects. The code below >> is a pseudo code, but should demonstrate the overall concerns I have: >> >> --8<---------------cut here---------------start------------->8--- >> ;; Some generic functions >> (define get-file-like-object-path (file-like) >> "Because all file-like object get inserted literally by home services, >> we need a function, which returns a file, which contains a path to the >> file." >> (computed-file >> "tmp-file" >> #~#$file-like)) >> >> (define fl-append-strings (lst) >> "Accepts a list of strings and file-like object, reads the content of >> the file-like objects (to be consistent with behavior of home services >> configuration)." >> (define file-like->str (mb-file-like) >> (if (string? mb-file-like) >> mb-file-like >> #~(begin >> (use-modules (ice-9 rdelim)) >> (with-fluids ((%default-port-encoding "UTF-8")) >> (with-input-from-file #$mb-file-like read-string))))) >> (computed-file >> "tmp-file" >> #~(apply string-append '#$(map file-like->str lst)))) >> >> >> ;; A home service, declared in home-environment. >> (service >> home-zsh-service-type >> (home-zsh-configuration >> (zshrc >> (list >> (fl-append-strings >> (list >> "source " >> (get-file-like-object-path zsh-autosuggestions) >> "/share/zs../..ions.zsh")) >> ;; or >> "source \\" >> (get-file-like-object-path >> (file-append zsh-autosuggestions "/share/zs../..ions.zsh")))))) >> --8<---------------cut here---------------end--------------->8--- > > Wouldn=E2=80=99t something like the following work > > --8<---------------cut here---------------start------------->8--- > (service home-zsh-service-type > (home-zsh-configuration > (zshrc > (list (mixed-text-file > "zshrc" > "source " > (file-append zsh-autosuggestions "/share/zsh/...")) ^ place1 > (local-file "./some-zshrc"))))) ^ place2 > --8<---------------cut here---------------end--------------->8--- > > and since =E2=80=98zshrc=E2=80=99 is already a list of file-like objects,= we could > implement =E2=80=98serialize-text-config=E2=80=99 using something like > =E2=80=98fl-append-strings=E2=80=99, which would read the contents of the= two files and > append them. That way users don=E2=80=99t have to deal with =E2=80=98fl-= append-strings=E2=80=99 > or =E2=80=98slurp-file-gexp=E2=80=99. Yep, it looks much better than what I was trying to prototype. Still feels inconsistent that file-like object in place1 will be evaluated to the path in the store, but in place2 to the content of the file. =2D-=20 Best regards, Andrew Tropin --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEKEGaxlA4dEDH6S/6IgjSCVjB3rAFAmFgVtwACgkQIgjSCVjB 3rB/MQ//RogABVv2MpJjTa4l3tLbJwD4Ys6QmTlJXbs0WD4qY48ShsNo3HI6Chg3 Co6cGOB89jN5pS0cguiY8K9kMSTj7xTPGH6w3XLNwo1D36iz21datc+UHXLi+nKk kCmr3DEC94tt/YgD2qLtIKUBpP9R4wEm8yHNe1xMgb2NrlNpg6A6PIK+uA/Gtnbg RL4mgsO3sUQ9pvzaztDa03CympuYBa+NGx0JRgOXVipV7W856wuMkvCQBe6r9Y7K rQSHXkJMihblQSY7dV4YfSGQalINz9Vpm+bVbVqYlNMecnhyXAEd5U/uw1bnFii+ fD4Wh45Ymi/nlxveXHKsGVkmlSunkLI+6j4VaidDPMfqlpKwSlZisC/bxqCpwSZL o4vbmaaB20xEJ0xp0lUC4oW3cYj6S7kqA2FRP1fYubw34Ua92gKYQ1g5c8ZiDkyu 5Plj4/tzTlmpDzCddSHLp4sqJPVQgIdZolkv563OGx7kVHGd1VQnOODrJ4GqOVrn iwmonTwgyGtymUDfDyA+q0JdNqdF4O2k2dFqauIoe6j23YO7OEviy0wqBCh5lWS6 CGg7k5hm0Xul4UGtYGshRgv3RwStGefnfRyujPjrpoxA1KKxcRm2XogvCdiN1aGU 5fS86VE4mmuFXG+WpLD32pkUUx+shZ///hguHnzDS63bgOQ+6/I= =8O5B -----END PGP SIGNATURE----- --=-=-=--