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	Lix user channel. Feel free to discuss on-topic issues here and give each other help. For matrix.to links to the rest of the Lix channels, see: https://wiki.lix.systems/books/lix-organisation/page/matrix-rooms	294 Servers

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Sender	Message	Time
13 May 2024
@sigmasquadron:matrix.org	In reply to @qyriad:katesiria.org `nix run` does kind of magically make arbitrarily-complex-packaged software trivially usable purely functional magic	23:49:46
fwam	In reply to @qyriad:katesiria.org why? and we ask this as selves-admitted flake… well, not haters, but we're very "ugh flakes" hm... purely because i didn't have a use for it, yet. nothing nix-shell can't do for me, at least.	23:50:13
Qyriad	(speaking of which, y'all know `nix run` works on non-flakes too right?)	23:50:19
samrose	I don't pretend to even know what the problems are with flakes, although I do believe you all that there are problems. I just went all in on them about 2 years ago, and just dealt with whatever comes along with that.	23:51:16
samrose	I did not know that nix run works on non-flakes	23:51:36
Qyriad	it's not exactly ergenomic, but it works on any arbitrary Nix-anything that evaluates to a derivation that sets `mainProgram`: `$ nix run --impure --expr 'let log2compdb = fetchGit "https://github.com/Qyriad/log2compdb"; in import log2compdb { }' . -- --version log2compdb 0.2.5`	23:52:42
raitobezarius	In reply to @samrose:matrix.org I don't pretend to even know what the problems are with flakes, although I do believe you all that there are problems. I just went all in on them about 2 years ago, and just dealt with whatever comes along with that. i recommend samueldr or jade's articles on flakes	23:53:04
Qyriad	all the nix3 commands work on non-flakes, this is just extremely shittily documented (so far)	23:53:05
raitobezarius	they're a really good quick presentation on the layering violations induced by flakes	23:53:13
raitobezarius	what qyriad just said	23:53:17
raitobezarius	* plus what qyriad just said	23:53:19
samrose	can you use `nix run` on non flakes because you can make an "installable" with nix, which then nix run can run?	23:53:24
Qyriad	an "installable" is actually not flake-specific, it's just flake by default (annoyingly)	23:53:46
samrose	yeah you can call a function that makes an installable in nix basically	23:54:06
samrose	ok	23:54:08
easrng	In reply to @qyriad:katesiria.org all the nix3 commands work on non-flakes, this is just extremely shittily documented (so far) do they get the nicer progress display without flakes?	23:54:52
Qyriad	there are four kinds of installables: flakeref + attrpath a full /nix/store path a nix expression and an (optionally empty) attrpath, with `--expr` (or -`E` in Lix) a nix file and an (optionally empty) attrpath, with `--file`/`-f`	23:55:03
raitobezarius	In reply to @easrng:yuri.im do they get the nicer progress display without flakes? yes	23:55:26
Qyriad	In reply to @easrng:yuri.im do they get the nicer progress display without flakes? yes, that's part of nix3/new-cli, not flakes, but you can actually get them in the old CLI too: `nix-build --log-format bar-with-logs '<nixpkgs>' hello`	23:55:27
Qyriad	In reply to @qyriad:katesiria.org there are four kinds of installables: flakeref + attrpath a full /nix/store path a nix expression and an (optionally empty) attrpath, with `--expr` (or -`E` in Lix) a nix file and an (optionally empty) attrpath, with `--file`/`-f` In order: `$ nix build "nixpkgs#neovim" $ nix build /nix/store/hfvwharmvin21pbxqapzbmwy7gmf8l8v-neovim-0.9.5.drv $ nix build --file '<nixpkgs>' neovim $ nix build --impure --expr 'let pkgs = import <nixpkgs> { }; in pkgs.neovim'` all do the same thing	23:57:00
samrose	So maybe there are some ideas in Lix to improve flakes over time eh?	23:57:07
Qyriad	that's the hope!	23:57:14
Qyriad	oh yeah you can also use flakes with the old CLI. I don't think this is documented literally anywhere, but: `nix-build 'flake:nixpkgs' -A neovim`	23:58:56
samrose	In reply to @qyriad:katesiria.org oh yeah you can also use flakes with the old CLI. I don't think this is documented literally anywhere, but: `nix-build 'flake:nixpkgs' -A neovim` Someone did show me that a while back at nixcon in paris :)	23:59:35
Qyriad	(the Nix docs team refusing to document experimental features really just does more harm than good, imho)	23:59:59
14 May 2024
samrose	It seems like the nix run approach could be a candidate way to test non-nixos functionality of Lix on Nix I've been using it to do some tests of building postgres, postgres extensions, and then running pgtap and other postgres tests on a package set. I guess that is more for testing the runnig of software packaged with nix It seemed the nix tests are mostly just like bash integration tests of the cli executable.	00:03:07
samrose	I am not sure if it would help to have some matrix of machines (x86_64-linux, wsl2, macos, aarch64-linux) that could test the installation of Lix, and then some `nix profile install` followed by maybe not `nix run`, but rather just using what was installed, and checking integrity of the Lix installation and package installation, and ... I don't know immediately what else	00:07:30
samrose	In reply to @samrose:matrix.org I am not sure if it would help to have some matrix of machines (x86_64-linux, wsl2, macos, aarch64-linux) that could test the installation of Lix, and then some `nix profile install` followed by maybe not `nix run`, but rather just using what was installed, and checking integrity of the Lix installation and package installation, and ... I don't know immediately what else the open source postgresql project uses cirrusci https://cirrus-ci.org/faq/#are-there-any-limits which offers a matrix of builders for free to open source projects with the limitations in that link (not the only solution but it might help to use resources that are free to open source projects potentially)	00:10:39
Qyriad	hmm, that is good to know	00:13:06
Qyriad	aarch64-linux is what we are most lacking in right now	00:13:19

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