From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex ter Weele Subject: Defining shepherd user services -- feedback desired Date: Sat, 03 Feb 2018 19:13:10 -0600 Message-ID: <87bmh5o8ux.fsf@librem.i-did-not-set--mail-host-address--so-tickle-me> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=-=-=" Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:52926) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ei8rt-0008Mr-O1 for guix-devel@gnu.org; Sat, 03 Feb 2018 20:13:18 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ei8rq-0006J0-I2 for guix-devel@gnu.org; Sat, 03 Feb 2018 20:13:17 -0500 Received: from mail-wr0-x22b.google.com ([2a00:1450:400c:c0c::22b]:35676) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ei8rq-0006Fl-64 for guix-devel@gnu.org; Sat, 03 Feb 2018 20:13:14 -0500 Received: by mail-wr0-x22b.google.com with SMTP id w50so26143069wrc.2 for ; Sat, 03 Feb 2018 17:13:14 -0800 (PST) Received: from librem (cable-78.29.200.42.coditel.net. [78.29.200.42]) by smtp.gmail.com with ESMTPSA id n20sm6226204wrb.56.2018.02.03.17.13.10 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sat, 03 Feb 2018 17:13:11 -0800 (PST) List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: "Guix-devel" To: guix-devel@gnu.org --=-=-= Content-Type: text/plain Attached is a manifest file which allows a user to write a shepherd-service like the following: (define redshift-service (shepherd-service (provision '(redshift)) (modules `((gnu packages xdisorg) ,@%default-modules)) (start #~(make-forkexec-constructor (list (string-append #$redshift "/bin/redshift") "-l" "50:4"))))) And transform it into a package: (services->package (list redshift-service)) This allows it to be included in a user's profile. This unites the definition of a service with its dependencies (redshift, in the example above). A user would not have to install a package just to use it as a service, nor would they have to hand-write a Shepherd configuration file. It may be desired to add services->package and my edited version of shepherd-configuration-file to Guix. I have not written a patch, though, because I am unsure where it should go and some FIXMEs remain. Feedback would be much appreciated! --=-=-= Content-Type: application/octet-stream Content-Disposition: attachment; filename=user-services.scm Content-Transfer-Encoding: base64 KHVzZS1tb2R1bGVzIChzcmZpIHNyZmktMSkKICAgICAgICAgICAgIChnbnUgcGFja2FnZXMpCiAg ICAgICAgICAgICAoZ251IHBhY2thZ2VzIGVtYWNzKQogICAgICAgICAgICAgKGdudSBwYWNrYWdl cyB4ZGlzb3JnKQogICAgICAgICAgICAgKGdudSBzZXJ2aWNlcyBzaGVwaGVyZCkKICAgICAgICAg ICAgIChndWl4IGJ1aWxkLXN5c3RlbSB0cml2aWFsKQogICAgICAgICAgICAgKGd1aXggZ2V4cCkK ICAgICAgICAgICAgIChndWl4IG1vbmFkcykKICAgICAgICAgICAgIChndWl4IHBhY2thZ2VzKQog ICAgICAgICAgICAgKGd1aXggc3RvcmUpCiAgICAgICAgICAgICAoZ3VpeCBwcm9maWxlcykpCgo7 OyBhIHVzZXIgd3JpdGVzIHNlcnZpY2VzIGxpa2UgdGhpcwooZGVmaW5lIGVtYWNzLXNlcnZpY2UK ICAoc2hlcGhlcmQtc2VydmljZQogICAocHJvdmlzaW9uICcoZW1hY3MpKQogICAobW9kdWxlcyBg KChnbnUgcGFja2FnZXMgZW1hY3MpCiAgICAgICAgICAgICAgLEAlZGVmYXVsdC1tb2R1bGVzKSkK ICAgKHN0YXJ0ICN+KG1ha2UtZm9ya2V4ZWMtY29uc3RydWN0b3IKICAgICAgICAgICAgIChsaXN0 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