Skip to content

flakes: mention package nix-run #1207

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
KiaraGrouwstra wants to merge 1 commit into
base: master
Choose a base branch
from
+5 −2
Open

flakes: mention package nix-run #1207

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 5 additions & 2 deletions source/concepts/flakes.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -195,7 +195,9 @@ Alternatives:
- Plain Nix files can be used with the [v2 commands] (like [`nix-build`], [`nix-shell`]), or with v3 commands' [`--file` flag] or `-f`.
- In {term}`NixOS`, you can make v3 commands' `nixpkgs` to a package set `pkgs` by setting [`nixpkgs.flake.source = pkgs.path;`] in your NixOS configuration.
Also see [managing dependencies].
- Using [`builtins.fetchTree`] from experimental feature [`fetch-tree`], [`nix run`] may be emulated[^emulated] for non-flake entrypoints.
- [`nix run`] alternatives for non-flake entrypoints:
- package [`nix-run`]
- emulating[^emulated] using [`builtins.fetchTree`] (from experimental feature [`fetch-tree`])

[Git]: https://git-scm.com/
[v2 CLI]: https://nix.dev/manual/nix/stable/command-ref/main-commands
Expand All @@ -204,9 +206,10 @@ Alternatives:
[`nix-shell`]: https://nix.dev/manual/nix/stable/command-ref/nix-shell.html
[`nixpkgs.flake.source = pkgs.path;`]: https://search.nixos.org/options?channel=unstable&show=nixpkgs.flake.source&query=nixpkgs.flake.source
[managing dependencies]: https://nix.dev/guides/recipes/dependency-management#managing-nixos-configurations
[`nix run`]: https://nix.dev/manual/nix/stable/command-ref/new-cli/nix3-run.html
[`nix-run`]: https://search.nixos.org/packages?channel=unstable&query=nix-run&show=nix-run
[`builtins.fetchTree`]: https://noogle.dev/f/builtins/fetchTree
[`fetch-tree`]: https://nix.dev/manual/nix/stable/development/experimental-features#xp-feature-fetch-tree
[`nix run`]: https://nix.dev/manual/nix/stable/command-ref/new-cli/nix3-run.html

[^emulated]: `nix run github:NixOS/nixpkgs#hello` for non-flake projects may look like `nix-shell -p '(import (builtins.fetchTree "github:NixOS/nixpkgs").outPath { }).hello' --run 'hello'`.
A drop-in command `nix-run` using the `nix run` syntax could be defined using a Bash alias like `alias nix-run='run() { $(nix-instantiate --raw --impure --eval --expr "(import <nixpkgs> {}).lib.getExe (import (builtins.fetchTree \"$(cut -d "#" -f 1 <<< "$1")\").outPath { }).$(cut -d "#" -f 2 <<< "$1")"); }; run'`.
Expand Down