I am building a project using the nixOs package system. I have a remote git repo containing different config files. I want to access those files using nix, with out editing the remote repo.
The project would access the remote repo with a specific commit hash. Could anyone help me, thanks.
Here's a short derivation that reads a file from a remote git repo that contains no Nix configuration:
with (import <nixpkgs> { }); let repo = fetchFromGitHub { owner = "nix-community"; repo = "awesome-nix"; rev = "c4adba38dc2ec33aa0f692cc5fcb9677b123087c"; sha256 = "cF9sh3vrDwTh64ZkgyEuJKmmA4UhbnXw8x4cnBMeGHk="; }; in stdenv.mkDerivation { name = "count-repo-lines"; src = repo; buildPhase = '' mkdir $out wc -l ./README.md > linecount ''; installPhase = '' cp linecount $out/linecount ''; system = builtins.currentSystem; } If it were saved to a file named count-remote-lines.nix, then the nix-build command would put the output into a local folder named result:
$ nix-build ./count-remote-lines.nix ...various log messages... $ cat ./result/linecount 154 ./README.md Alternatively, to better troubleshoot the derivation's build process by stepping through it in an interactive shell, try:
$ nix-shell ./count-repo-lines.nix --pure $ unpackPhase unpacking source archive /nix/store/xaff1yqipbpazhp9jz22rjp7izbglzr5-source source root is source $ cd source $ ls CONTRIBUTING.md LICENSE README.md The remaining build commands are documented in man nix-shell, under Examples. Also in wiki pages such as this one.
