Différences

Ci-dessous, les différences entre deux révisions de la page.

--- tuto:nix [2020/03/06 18:56] – [home-manager] root
+++ tuto:nix [2022/06/21 20:15] (Version actuelle) – [nix-shell] root
@@ Ligne 15: / Ligne 15: @@
       * [[https://nixos.wiki/index.php?title=Cheatsheet&useskin=vector|Cheatsheet]]
+===== nix-user-chroot =====
+https://github.com/nix-community/nix-user-chroot
+Outil qui permet de donner un répertoire qui sera présenter comme point de montage ''/nix'' grâce au namespace en espace utilisateur:
+<xtermrtf>
+$ mkdir -m 0755 ~/.nix
+$ nix-user-chroot ~/.nix ${SHELL=bash} -l
+</xtermrtf>
 ===== Installation =====
 <xtermrtf>
@@ Ligne 36: / Ligne 44: @@
 </xtermrtf>
+==== NIX_PAGER ====
 <xtermrtf>
 export NIX_PAGER=
+</xtermrtf>
+==== nixpkgs ====
+<xtermrtf>
+nixpkgs=https://github.com/NixOS/nixpkgs-channels/archive/nixos-15.09.tar.gz
+nixpkgs=channel:nixos-15.09
 </xtermrtf>
@@ Ligne 59: / Ligne 74: @@
 $ nix-env -u --dry-run
 $ nix-env -e hello
+</xtermrtf>
+Force a specific channel (master in this example):
+<xtermrtf>
+$ nix-env -f https://github.com/NixOS/nixpkgs/archive/master.tar.gz -iA hello
 </xtermrtf>
@@ Ligne 120: / Ligne 140: @@
 ==== nix-shell ====
   * https://www.sam.today/blog/environments-with-nix-shell-learning-nix-pt-1/
+<code haskell shell.nix>
+{ pkgs ? import <nixpkgs> {} }:
+with pkgs;
+mkShell {
+  buildInputs = [
+    elixir_1_10
+    nodejs-12_x
+  ];
+}
+</code>
+<xtermrtf>
+$ nix-shell
+$ nix-shell shell.nix
+</xtermrtf>
 <xtermrtf>
 $ nix-shell --pure -E 'import <nixpkgs> {}' -A hello
@@ Ligne 136: / Ligne 175: @@
 <xtermrtf>
 $ nix-shell '<nixpkgs>' -A emacs --command 'unpackPhase; patchPhase'
+</xtermrtf>
+Force a specific channel:
+<xtermrtf>
+$ nix-shell -p hello -I nixpkgs=https://github.com/NixOS/nixpkgs/archive/master.tar.gz
 </xtermrtf>
@@ Ligne 189: / Ligne 233: @@
 $ nix-channel --add https://nixos.org/channels/nixos-19.09 nixpkgs_19_09
 $ nix-channel --remove nixpkgs_19_09
+</xtermrtf>
+Master channel:
+<xtermrtf>
+$ nix-channel --add https://github.com/NixOS/nixpkgs/archive/master.tar.gz master
 </xtermrtf>
@@ Ligne 306: / Ligne 355: @@
 path is '/nix/store/2l5az5rvkkavrr7zgghgqpmsqj3vn1yp-742781c358d65c8849a6a6f5b8f4bb3dcefc203a.tar.gz'
 cgs6b1rmh8hmcwm5wpxxg32p3km9c05606pykv49qq1spd6p38
+</xtermrtf>
+==== nix-instantiate ====
+<xtermrtf>
+$ nix-instantiate --eval -E '(import <nixpkgs> {}).vscode.version'
+"1.43.0"
+</xtermrtf>
+<xtermrtf>
+$ nix-instantiate --eval -E '(import <nixpkgs> {}).lib.version'
+"20.09pre216928.991bbef6835"
 </xtermrtf>
@@ Ligne 408: / Ligne 468: @@
 Welcome to Nix version 2.3.3. Type :? for help.
-$ nix-repl> builtins.currentSystem
+nix-repl> builtins.currentSystem
 "x86_64-linux"
 </xtermrtf>
 <xtermrtf>
-$ nix-repl> :l <nixpkgs>
+$ nix repl
+nix-repl> :l <nixpkgs>
 nix-repl> simple = derivation { name = "simple"; builder = "${bash}/bin/bash"; args = [ ./simple_builder.sh ]; gcc = gcc; coreutils = coreutils; src = ./simple.c; system = builtins.currentSystem; }
 nix-repl> :b simple
 this derivation produced the following outputs: out -> /nix/store/ni66p4jfqksbmsl616llx3fbs1d232d4-simple
+</xtermrtf>
+<xtermrtf>
+nix-repl> (builtins.parseDrvName "NUnit.Console-3.0.1").name
+"NUnit.Console"
+</xtermrtf>
+=== nix edit ===
+Permet d'éditer un build avant de l'installer ([|https://nixos.org/manual/nix/stable/command-ref/new-cli/nix3-edit.html|nix edit]]):
+<xtermrtf>
+$ EDITOR=vim nix edit -f "<nixpkgs>" samba --extra-experimental-features nix-command
+</xtermrtf>
+On install ensuite le paquet:
+<xtermrtf>
+$ nix-env -i samba
 </xtermrtf>
@@ Ligne 497: / Ligne 574: @@
 </xtermrtf>
-==== Chemains (path) ====
+==== Chemins (path) ====
 <xtermrtf>
 $ nix eval '(some/path)'
@@ Ligne 601: / Ligne 678: @@
 ==== Override ====
 <xtermrtf>
-$ nix-repl
+$ nix repl
 nix-repl> :l <nixpkgs>
 Added 4360 variables.
@@ Ligne 731: / Ligne 808: @@
    \_/\_/ \___|_|\___\___/|_| |_| |_|\___(_)
+</xtermrtf>
+==== builder ====
+<xtermrtf>
+{ stdenv, fetchurl, openmpi }:
+stdenv.mkDerivation rec {
+  name = "oned";
+  src = fetchurl {
+     url = "https://www.pdc.kth.se/education/tutorials/mpi/hybrid-lab/oned.c";
+     sha256 = "<HASH_HERE>";
+  };
+  buildInputs = [ openmpi ];
+  builder = builtins.toFile "builder.sh"
+  "
+  source $stdenv/setup
+  mpicc -w -o oned.exe $src
+  mkdir $out
+  mkdir $out/bin
+  cp oned.exe $out/bin
+  ";
+  meta = {
+    description = "JDEV 2017 Nix tutoriel";
+    license     = stdenv.lib.licenses.gpl2;
+    platforms   = stdenv.lib.platforms.unix;
+  };
+}
 </xtermrtf>