From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?Q?G=C3=A1bor_Boskovits?= Subject: Re: Extracting a reachability path out of a (package) DAG Date: Tue, 17 Jul 2018 17:09:47 +0200 Message-ID: References: <20180717101033.113807d5@alma-ubu> <20180717082424.qbvf4cv7omirkp2r@abyayala> <20180717123211.175f52ac@alma-ubu> Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="000000000000dc916805713356b3" Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:50064) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ffRc0-0007XP-IM for guix-devel@gnu.org; Tue, 17 Jul 2018 11:10:01 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ffRbz-0001FP-G1 for guix-devel@gnu.org; Tue, 17 Jul 2018 11:10:00 -0400 Received: from mail-io0-x22b.google.com ([2607:f8b0:4001:c06::22b]:37552) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ffRbz-0001Eu-99 for guix-devel@gnu.org; Tue, 17 Jul 2018 11:09:59 -0400 Received: by mail-io0-x22b.google.com with SMTP id z19-v6so1278108ioh.4 for ; Tue, 17 Jul 2018 08:09:58 -0700 (PDT) In-Reply-To: <20180717123211.175f52ac@alma-ubu> 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: bjoern.hoefling@bjoernhoefling.de Cc: Guix-devel , ng0 --000000000000dc916805713356b3 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Bj=C3=B6rn H=C3=B6fling ezt =C3=ADrta (= id=C5=91pont: 2018. j=C3=BAl. 17., K, 12:32): > On Tue, 17 Jul 2018 08:24:24 +0000 > Nils Gillmann wrote: > > > > To add to this idea: > > abyayala$ nix why-depends --help > > Usage: nix why-depends ... > > > > Summary: show why a package has another package in its closure. > > [..] > > > Would it be useful to have a guix package subcommand which replicates > > this? > > > Yeah, would be nice. Because that was missing, I created that script > for me. > > Bj=C3=B6rn > Thanks, Bj=C3=B6rn. I've recently had the same problem, and I was about to = write this script once we moved to jdk8. Now I don't have to do it any more :) This is very useful, it helps so much in bootstrapping related work. --000000000000dc916805713356b3 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Bj=C3=B6rn H= =C3=B6fling <bjoern= .hoefling@bjoernhoefling.de> ezt =C3=ADrta (id=C5=91pont: 2018. j=C3= =BAl. 17., K, 12:32):
On Tue, 17 Ju= l 2018 08:24:24 +0000
Nils Gillmann <ng0@n0.is<= /a>> wrote:


> To add to this idea:
> abyayala$ nix why-depends --help
> Usage: nix why-depends <FLAGS>... <PACKAGE> <DEPENDENCY= >
>
> Summary: show why a package has another package in its closure.

[..]

> Would it be useful to have a guix package subcommand which replicates<= br> > this?


Yeah, would be nice. Because that was missing, I created that script
for me.

Bj=C3=B6rn
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