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Thanks for the example - I’ve been looking for how to make mix packaging easy. How do you add files to this build? For example, if I have this program.rb that

Thanks for the example - I’ve been looking for how to make mix packaging easy. How do you add files to this build? For example, if I have this program.rb that depends on ruby: puts “Hello World” And then you add a file called package.nix let pkgs = import <nixpkgs> {}; in pkgs.runCommand "my-app" { buildInputs = [pkgs.ruby]; } '' pwd && ls; ruby ./program.rb '' How do you get your files in there - like “ADD” in a Dockerfile?

xfer 6y ago
example in the manual: https://nixos.org/manual/nixpkgs/stable/#chap-trivial-builders https://nixos.org/manual/nixpkgs/stable/#chap-trivial-builde... shows how it creates a file `$out/message`. If you want to write to nix store with stdenv use $out.
chriswarbo 6y ago
You can splice file paths directly into the script, like this: let pkgs = import <nixpkgs> {}; in pkgs.runCommand "my-app" { buildInputs = [pkgs.ruby]; } '' pwd && ls ruby ${./program.rb} '' Or you could add it as an env var: let pkgs = import <nixpkgs> {}; in pkgs.runCommand "my-app" { buildInputs = [pkgs.ruby]; program = ./program.rb; } '' pwd && ls; ruby "$program" ''