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Resent-From: Maxime Devos Original-Sender: "Debbugs-submit" Resent-CC: guix-patches@gnu.org Resent-Date: Mon, 28 Feb 2022 19:32:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 54199 X-GNU-PR-Package: guix-patches X-GNU-PR-Keywords: patch To: Attila Lendvai , 54199@debbugs.gnu.org Received: via spool by 54199-submit@debbugs.gnu.org id=B54199.164607669412358 (code B ref 54199); Mon, 28 Feb 2022 19:32:02 +0000 Received: (at 54199) by debbugs.gnu.org; 28 Feb 2022 19:31:34 +0000 Received: from localhost ([127.0.0.1]:34820 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nOlk5-0003DF-Mc for submit@debbugs.gnu.org; Mon, 28 Feb 2022 14:31:33 -0500 Received: from andre.telenet-ops.be ([195.130.132.53]:43816) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nOlk3-0003D5-6G for 54199@debbugs.gnu.org; Mon, 28 Feb 2022 14:31:32 -0500 Received: from ptr-bvsjgyhxw7psv60dyze.18120a2.ip6.access.telenet.be ([IPv6:2a02:1811:8c09:9d00:3c5f:2eff:feb0:ba5a]) by andre.telenet-ops.be with bizsmtp id 0jXV2700E4UW6Th01jXVxf; Mon, 28 Feb 2022 20:31:29 +0100 Message-ID: <73e2b7cba0065c3b6b16bb14438dd3a8ea218808.camel@telenet.be> From: Maxime Devos Date: Mon, 28 Feb 2022 20:31:25 +0100 In-Reply-To: <20220228185115.28042-1-attila@lendvai.name> References: <20220228185115.28042-1-attila@lendvai.name> Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-BKgnQnL4nQJwMjc9jgCA" User-Agent: Evolution 3.38.3-1 MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=telenet.be; s=r22; t=1646076689; bh=kWbh/HqasmyQUKCpC9gve512iNSlHJ/zbPdCAqF4YTQ=; h=Subject:From:To:Date:In-Reply-To:References; b=YgGY8GjBb5i+Y6je/ipN9YpeqvNEPdqL/SSGTcDMVE51zNnHbhLLvI4XPxcD+kdUL tpasK/foqhvFWz/s6xly09f08Pv5NnhTflxe466shWLiqq4GyjV2l6r+utS5y8qVq/ 9SesR0ZAH7OaJ5B09JTD8M7KvoAXYj6AZCnNIDQbzvzxPRhfmrtJoNsVXkrKDJo7qc HPrIcDkwcE9KwFjRr0wcopvWIOFmz0JVrTK+7TjNmDMmfmM2Qa7lPbMYSXQqNLakgy b4MASR7I/g0LxO6gqcMOXW1acoiGeNuj3Zz4g9GQc32YzWtjYeO7Oa+C6juyj7c5E2 Wz1iKQ4s+qWAA== 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 X-Migadu-Country: US ARC-Message-Signature: i=1; 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aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=telenet.be header.s=r22 header.b=YgGY8GjB; dmarc=fail reason="SPF not aligned (relaxed)" header.from=telenet.be (policy=none); spf=pass (aspmx1.migadu.com: domain of "guix-patches-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-patches-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: 3.61 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=telenet.be header.s=r22 header.b=YgGY8GjB; dmarc=fail reason="SPF not aligned (relaxed)" header.from=telenet.be (policy=none); spf=pass (aspmx1.migadu.com: domain of "guix-patches-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-patches-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: 62D761C978 X-Spam-Score: 3.61 X-Migadu-Scanner: scn0.migadu.com X-TUID: kDVioq/uO30w --=-BKgnQnL4nQJwMjc9jgCA Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Attila Lendvai schreef op ma 28-02-2022 om 19:51 [+0100]: > +Luckily, not all changes to Shepherd require the recompilation of all > +its dependencies.=C2=A0 The rule of thumb here is that: =E2=80=98not all changes require=E2=80=99 -> =E2=80=98most changes do not r= equire=E2=80=99? > +@itemize > + > +@item > +if you are making changes to the public API of Shepherd (i.e. anything > +that may have compile-time effects on dependant packages, like adding or > +removing public functions, or changing public macros, etc.), then you > +will need to go through a full recompilation, so that the the Guix > +codebase, and the dependant packages can observe the changes while they > +are being compiled. I don't think this is necessary? If I change the API a little, then why would packages only using 'sbin/halt', 'sbin/reboot' and 'sbin/shutdown' of the 'shepherd' package have to be recompiled? Even if the API is changed, the package still uses the old shepherd package with the old API, so no recompilation necessary. Also, even if the API is changed, then 'guix system reconfigure ...' would pick up the modified shepherd, and shepherd services modules would be compiled against the shepherd from the shepherd-configuration record (see 'shepherd-boot-gexp', 'shepherd-configuration-file' and 'scm->go' in (gnu services shepherd)). > +@item > +if you're only working on Shepherd's implementation (e.g. making > +Shepherd's error handling more bullet proof), then it's enough to only > +recompile Shepherd itself, and use the resulting package as the one that > +gets started as the init process. > + So I don't think the distinction between API and implementation is necessary here. (Feel free to correct in you have observed the contrary!) Greetings, Maxime --=-BKgnQnL4nQJwMjc9jgCA Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- iI0EABYKADUWIQTB8z7iDFKP233XAR9J4+4iGRcl7gUCYh0jDRccbWF4aW1lZGV2 b3NAdGVsZW5ldC5iZQAKCRBJ4+4iGRcl7rChAQDtnfhTsxl+cA3h9U/XjghagtLC o+qwfRtTTdSzyE+jUgD+MZV8nOX7u+3w+bCFHwhGlJKrDD28Ejybfvj4seIt/wM= =6Hjl -----END PGP SIGNATURE----- --=-BKgnQnL4nQJwMjc9jgCA--