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neil

A CLI to add common aliases and features to deps.edn-based projects.

Installation

Homebrew (Linux and macOS)

$ brew install babashka/brew/neil

Scoop (Windows)

$ scoop bucket add scoop-clojure https://github.com/littleli/scoop-clojure
$ scoop install neil

For detailed information about scoop installer check scoop-clojure.

Nix

$ nix-shell -p neil

# Alternatively, if your nix channel doesn't have neil yet:
$ nix-shell -I nixpkgs=channel:nixos-unstable -p neil

Clojure

Add the following alias to your global or project-local deps.edn:

:neil {:deps {io.github.babashka/neil {:git/tag "v0.1.41"
                                       :git/sha "77288d4"}}
       :main-opts ["-m" "babashka.neil"]}

Then invoke clj -M:neil.

Manual

  • Install babashka
  • Download the neil script to somewhere on your PATH. In Windows, also download the neil.bat script and place it in the PATH.

Status

As we're still finding out the best UX, neil may undergo breaking changes from version to version.

Usage

Type neil to see the help:

Usage: neil <subcommand> <options>

Most subcommands support the options:
  --alias      Override alias name.
  --deps-file  Override deps.edn file name.

Subcommands:

add
  dep    Alias for `neil dep add`.
  test   adds cognitect test runner to :test alias.
  build  adds tools.build build.clj file and :build alias.
  kaocha adds kaocha test runner to :kaocha alias.
  nrepl  adds nrepl server to :nrepl alias.

dep
  add: Adds --lib, a fully qualified symbol, to deps.edn :deps.
    Run `neil dep add --help` to see all options.

  search: Search Clojars for a string in any attribute of an artifact
    Run `neil dep search --help` to see all options.

  upgrade: Upgrade libs in the deps.edn file.
    Supports --lib <libname> or :lib <libname> for upgrading a single, specified lib.
    Supports --dry-run for printing updates without updating the deps.edn file.
    Supports --alias <some-alias> for limiting upgrades to an alias.
      Note that all deps (including alias deps) are upgraded by default.
    Supports --no-aliases if you'd like to upgrade only the project's :deps.

    Ex: `neil dep upgrade` - upgrade all deps.
    Ex: `neil dep upgrade --dry-run` - print deps that would be upgraded.
    Ex: `neil dep upgrade --alias lint` - update only deps for the `lint` alias.
    Ex: `neil dep upgrade :lib clj-kondo/clj-kondo` - update a single dep.

  update: Alias for `upgrade`.

license
  list   Lists commonly-used licenses available to be added to project. Takes an optional search string to filter results.
  search Alias for `list`
  add    Writes license text to a file
    Options:
    --license The key of the license to use (e.g. epl-1.0, mit, unlicense). --license option name may be elided when license key is provided as first argument.
    --file    The file to write. Defaults to 'LICENSE'.

new
  Create a project using deps-new
    Run `neil new --help` to see all options.

version
  Commands for managing the :version key in the deps.edn project config.
    Run `neil version --help` to see all options.

test
  Run tests. Assumes `neil add test`. Run `neil test --help` to see all options.

add dep

This will add the newest version of clj-kondo to the :deps map in deps.edn:

$ neil add dep :lib clj-kondo/clj-kondo

The :lib keyword may be elided if the libname is the first argument after dep:

$ neil add dep clj-kondo/clj-kondo

The add dep command will always overwrite an existing dependency.

To add a git library from Github you can use :sha to provide a SHA or :latest-sha to pick the latest sha from the default branch:

$ neil add dep borkdude/sci :latest-sha true

add build

To add tools.build related features, use:

$ neil add build :deps-deploy true

After that you can run tasks like:

$ clojure -T:build uber
$ clojure -T:build deploy

add test

$ neil add test

This will add the Cognitect test-runner to your deps.edn so you can execute:

$ clojure -X:test

A similar option is supported for kaocha:

$ neil add kaocha

To change the alias you can provide an option like:

$ neil add kaocha :alias kaocha2

dep search

Search Clojars for a string in any attribute of an artifact:

$ neil dep search "babashka.nrepl"
:lib babashka/babashka.nrepl :version 0.0.6

Note that Clojars stores the namespace and name of a library as separate attributes, so searching for a ns-qualified library will not necessarily return any matches:

$ neil dep search "babashka/babashka.nrepl"
Unable to find babashka/babashka.nrepl on Clojars.

But a search string can be matched in a library's description:

$ neil dep search "test framework"

will return libraries with 'test framework' in their description.

license list

List/search for licenses that can be added to a project with neil. This functionality uses Github's license API, which is also used by choosealicense.com. With no search term, a list of commonly-used licenses is returned:

$ neil license list
:license agpl-3.0 :name GNU Affero General Public License v3.0
:license apache-2.0 :name Apache License 2.0
...

A search term can be added to filter the commonly-used list with a case-insensitive search against the license name:

$ neil license list "lesser general"
:license lgpl-2.1 :name GNU Lesser General Public License v2.1

The full collection of available licenses can be found in the license API repo.

license search is an alias for license list.

license add

Retrieve license text from Github's license API and write it to a file. See the license list help for details on available licenses.

$ neil license add :license mit :file myproj/license.txt

Will write the MIT license to the file myproject/license.txt. The :license keyword can be left out if the license key is the first argument, and :file defaults to LICENSE, so a minimal usage:

$ neil license add epl-1.0

Will create a LICENSE file in the current directory with the EPL 1.0 text.

Emacs Integration

neil.el is a companion Emacs package.

Load it using your preferred Emacs package manager, e.g., for Doom Emacs:

;; packages.el

(package! neil :recipe (:host github :repo "babashka/neil" :files ("*.el")))

;; config.el

(use-package! neil
  :config 
  (setq neil-prompt-for-version-p nil
        neil-inject-dep-to-project-p t))

Github's Rate Limit

Github's API has a 60 hit/hour rate-limit. The workaround for this is creating a personal access token and setting two env vars:

  • NEIL_GITHUB_USER
  • NEIL_GITHUB_TOKEN

Roadmap

  • Add bb.edn-related features for invoking test and build tasks
  • Option to add cljs-test-runner

Contributing

If this project shows potential to you, I'd be happy to discuss and receive contributions.

Dev

See neil.rb for the brew Formula. You can install this formula locally with:

$ brew reinstall --build-from-source ./neil.rb

License

Copyright © 2022 Michiel Borkent

Distributed under the MIT License. See LICENSE.