1.9 KiB
Overview
This package contains a collection of Nix expressions created by SHARCNET staff for various software packages. Once copied or linked into your ~/.nix-defexpr directory they will allow you to install the associated package into your Nix environment.
These directions assume you have loaded the Nix module (this enabes your Nix environment and makes the various Nix commands avaialble)
module load nix
Obtaining the latest expressions
If you don't yet have a copy of ~/nix-nixpkgs-sharcnet, you will need to clone a copy (use your SHARCNET credentials)
cd ~
git clone https://git.sharcnet.ca/tyson/nix-nixpkgs-sharcnet.git
If you already have a copy, you can update to the latest version
cd ~/nix-nixpkgs-sharcnet
git pull
Installing an expression
To use any of the provided Nix expressions, you need to copy it to or link it into your ~/.nix-defexpr directory (replace package.nix with the name of the Nix expression you wish to use)
ln -s ../nix-nixpkgs-sharcnet/package.nix ~/.nix-defexpr/
Using a symbolic link has the advantage that it automatically gets updated whenever you update ~/nix-nixpkgs-sharcnet.
Using an expression
Once you have the expression in your ~/.nix-defexpr you can use the
nix-env command to install (or update) the associated package in
your Nix environment.
Installing and updating
To install or update the associated package (replace package with the base name of the Nix expression file you copied to ~/.nix-defexpr)
nix-env --install --attr package
Removing
To remove a package you first need to figure out its name (generally, but not nessesarily, the same as the name of the Nix expression file)
nix-env --query
Then you (replace package with the package name)
nix-env --uninstall package
Reverting
To undo the last install/update/remove command
nix-env --rollback