devenv.sh - Fast, Declarative, Reproducible, and Composable Developer Environments
Running devenv init generates devenv.nix:
{ pkgs, ... }:
{
# https://devenv.sh/basics/
env.GREET = "devenv";
# https://devenv.sh/packages/
packages = [ pkgs.git ];
enterShell = ''
hello
git --version
'';
# https://devenv.sh/languages/
languages.nix.enable = true;
# https://devenv.sh/scripts/
scripts.hello.exec = "echo hello from $GREET";
# https://devenv.sh/pre-commit-hooks/
pre-commit.hooks.shellcheck.enable = true;
# https://devenv.sh/processes/
# processes.ping.exec = "ping example.com";
}And devenv shell activates the environment.
$ devenv
Usage: devenv [OPTIONS] <COMMAND>
Commands:
init Scaffold devenv.yaml, devenv.nix, .gitignore and .envrc.
shell Activate the developer environment. https://devenv.sh/basics/
update Update devenv.lock from devenv.yaml inputs. http://devenv.sh/inputs/
search Search for packages and options in nixpkgs. https://devenv.sh/packages/#searching-for-a-file
info Print information about this developer environment.
up Start processes in the foreground. https://devenv.sh/processes/
processes Start or stop processes.
test Run tests. http://devenv.sh/tests/
container Build, copy, or run a container. https://devenv.sh/containers/
inputs Add an input to devenv.yaml. https://devenv.sh/inputs/
gc Deletes previous shell generations. See http://devenv.sh/garbage-collection
build Build any attribute in devenv.nix.
version Print the version of devenv.
help Print this message or the help of the given subcommand(s)
Options:
-v, --verbose
Enable debug log level.
-s, --system <SYSTEM>
[default: x86_64-linux]
-d, --nix-debugger
Enter Nix debugger on failure.
-n, --nix-option <NIX_OPTION> <NIX_OPTION>
Pass additional options to nix commands, see `man nix.conf` for full list.
-h, --help
Print help