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Message-ID: In-Reply-To: <871q8ful52.fsf@zancanaro.id.au> References: <8734t9tw5d.fsf@elephly.net> <871q8ful52.fsf@zancanaro.id.au> Feedback-ID: 28384833:user:proton MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=185.70.40.136; envelope-from=attila@lendvai.name; helo=mail-40136.proton.ch X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list 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+larch=yhetil.org@gnu.org Sender: guix-devel-bounces+larch=yhetil.org@gnu.org X-Migadu-Flow: FLOW_IN X-Migadu-Country: US X-Migadu-Scanner: mx10.migadu.com X-Migadu-Spam-Score: -6.20 X-Spam-Score: -6.20 X-Migadu-Queue-Id: BBF4D204B1 X-TUID: +DpULTLgc926 > > channels are a step towards this, but they are not enough in their > > current form to successfully accommodate for such a setup. an obvious > > thing that is missing is a way to formally express inter-channel > > dependencies, including some form of versioning. >=20 >=20 > Do we not have this? The manual documents a mechanism for channel > dependencies in "(guix) Declaring Channel Dependencies". >=20 > I haven't used it, but it looks like the dependencies are declared as > channels, which can have the usual branch/commit specifications to tie > them to specific versions. good point, thanks! i looked briefly at the code just now. it's not trivial, and it seems to tr= eat the guix channel specially (because i don't need to specify it as a dep= endency in my channel's .guix-channel file), and i'm not sure how it behave= s when e.g. two channels depend on the same channel, but pick two different= commits... or all the other convoluted situations. the reason i assumed it doesn't exist is that i've never seen it used by an= y channels that i looked at. > What are we missing? i guess it's time to experiment to be able to answer your question. FTR, it's READ-CHANNEL-METADATA and friends in guix/channels.scm note that it's not the same thing as /etc/guix/channels.scm, even though th= ey appear similar (https://issues.guix.gnu.org/53657). --=20 =E2=80=A2 attila lendvai =E2=80=A2 PGP: 963F 5D5F 45C7 DFCD 0A39 -- =E2=80=9CPeople who have never gone to school have never developed negative= attitudes toward exploring their world.=E2=80=9D =09=E2=80=94 Grace Llewellyn