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That's all we know. 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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.23 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" X-Scanner: scn0 Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=gmail.com header.s=20161025 header.b=V8rqEFMh; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Spam-Score: -1.71 X-TUID: n2N83FIKO+6c Hi Chris, Since blog post about Data Services seems floating around, I describe what I find useful as an end-user of the service. And if you have not showed me IRL at FOSDEM (and you showed me several times ;-)), then I would not be using the service so often. To me, the entry point is always: and to be exact . Even, I have this Emacs trivial helper function: --8<---------------cut here---------------start------------->8--- (defun my/guix-data (package) "Add URL of PACKAGE to `kill-ring'. Yankable result: `https://data.guix.gnu.org/repository/1/branch/master/package/PACKAGE/outpu= t-history'. With `universal-argument', load URL using `browse-url'." (interactive "sPackage: ") (let ((url (format "https://data.guix.gnu.org/repository/1/branch/master/package/%s/= output-history" package))) (kill-new url) (when current-prefix-arg (browse-url url)) (message (format "%s killed." url)))) --8<---------------cut here---------------end--------------->8--- (This dumb function could be improved using =E2=80=9Cguix-emacs=E2=80=9D wi= th package completion etc. But the time to implement such thing is not worth for me because I generally exactly know which package I look up. :-)) Let=E2=80=99s take the recent example of the package =E2=80=99python-umap-l= earn=E2=80=99 [1]. >From the webpage, it is quick and easy to see which version build or fail. Then, once I know that: Version Output Builds From To =E2=80=9CFrom=E2=80=9D means the date of the first commit corresponding to = Version =E2=80=93=E2=80=93 specifically at the derivation. And =E2=80=9CTo=E2=80=9D resp. the last co= mmit. Then I can click to say the =E2=80=9CTo=E2=80=9D date of the last =E2=80=9C= Succeeded=E2=80=9D build and it leads to the webpage: which provides the commit hash. Now, it is easy to use the time-machine: guix time-machine =E2=80=93commit=3Dcac674d99dc4a332e6210c57ec7f1b8164f6= 6642 \ =E2=80=93 install python-umap-learn Time to time, I click to =E2=80=9CFailed Dependency=E2=80=9D but I do not k= now how this information is accurate. Well, I could describe other use cases, but I think this one is really useful for the end-user: - list all the versions available (since Dec. 2019 I guess) - know which build and which not - easily find the commit for =E2=80=9Cguix time-machine=E2=80=9D Cheers, simon 1: