From 7bf2d4966e2372495c6b30bcfffa3f463c309ebe Mon Sep 17 00:00:00 2001
From: Joachim Schiele <js@lastlog.de>
Date: Wed, 14 Mar 2012 18:46:18 +0000
Subject: some more comments and examples

svn path=/nixpkgs/trunk/; revision=33073
---
 pkgs/misc/my-env/default.nix | 36 ++++++++++++++++++++++++++++--------
 1 file changed, 28 insertions(+), 8 deletions(-)

(limited to 'pkgs/misc')

diff --git a/pkgs/misc/my-env/default.nix b/pkgs/misc/my-env/default.nix
index 490061e1e96c4..51c9e5a5418af 100644
--- a/pkgs/misc/my-env/default.nix
+++ b/pkgs/misc/my-env/default.nix
@@ -20,22 +20,42 @@
             '';
           };
     in rec {
+      # this is the example we will be using
       nixEnv = simple {
-       name = "nix";
-       buildInputs = [ libtool stdenv perl curl bzip2 openssl aterm242fixes db45 autoconf automake zlib ];
-       cTags = [ aterm242fixes];
+       name = "mytestenv";
+       buildInputs = [ libtool stdenv perl curl bzip2 openssl db45 autoconf automake zlib ];
       };
+      # this is a second example (not covered here but still useful) - given by viric
+      sdlEnv = pkgs.myEnvFun {
+          name = "sdl";
+          buildInputs = [ stdenv SDL SDL_image SDL_ttf SDL_gfx cmake SDL_net  pkgconfig];
+      };
+      # add more environments below here, just follow the syntax given in the above examples
     };
   }
 
-
-  Put this into your .bashrc
+  put this into your .bashrc
     loadEnv(){ . "${HOME}/.nix-profile/dev-envs/${1}"; }
 
-  then nix-env -iA env-nix
-  and
-  $ loadEnv postgresql
+  afterwards execute the new bash shell:
+    $ bash
+
+  the nix expression created is called: env-mytestenv and must appear when searching for it using:
+    $ nix-env -qa '*' | grep nix
+      env-mytestenv
+
+  now we should build our newly defined custom environment using this command on a shell, so type:
+    $ nix-env -iA env-mytestenv
+
+  afterwards load the new environment using:
+    $ loadEnv mytestenv
+  one could also use this function instead:
+    $ load-mytestenv-env
+  the result using either command should be:
+    env-mytestenv loaded
 
+  note: after you typed the above command you will lose all the other tools usually found in a shell you are used to. in this
+        example you will not be able to type 'vi' to edit a file as vi is not included in the dependencies
 */
 
 { mkDerivation, substituteAll, pkgs } : { stdenv ? pkgs.stdenv, name, buildInputs ? [], cTags ? [], extraCmds ? ""} :
-- 
cgit 1.4.1