niv

A tool for dealing with third-party packages in Nix. Read more about it in the usage section.

Install

$ nix-env -iA niv -f https://github.com/nmattia/niv/tarball/master

Build

Inside the provided nix shell:

$ # GHCi:
$ snack ghci
$ # run:
$ snack run -- <args>

Usage

niv simplifies adding and updating dependencies in Nix projects. It uses a single file, nix/sources.json, where it stores the data necessary for fetching and updating the packages.

Add: inserts a package in nix/sources.json.
Update: updates one or all packages in nix/sources.json.
Drop: deletes a package from nix/sources.json.

niv has two more utility functions:

Init: bootstraps a Nix projects, in particular creates a nix/sources.json file containing niv and nixpkgs as well as a nix/sources.nix file that returns the sources as a Nix object.
Show: shows the packages' information.

replace_niv_help

Add

replace_niv_add_help

Update

replace_niv_update_help

Drop

replace_niv_drop_help

Init

replace_niv_init_help

show

replace_niv_show_help

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niv