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| .github/workflows | ||
| hydra | ||
| patches | ||
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| default.nix | ||
| elisp.nix | ||
| flake.nix | ||
| packreq.nix | ||
| parse.nix | ||
| README.org | ||
| update | ||
Emacs overlay for Nixpkgs
Contents of the overlay
Elpa
Daily generations of Elpa.
Melpa / Melpa stable
Daily generations of Melpa & Melpa stable attribute sets.
EXWM & needed dependencies
This overlay provides fresh versions of EXWM and dependencies. This is updated daily.
Emacs from Git and latest (including pre-releases)
This overlay also provides two versions (latest from git) for Emacs. These are updated daily.
These attributes are named emacsGit and emacsUnstable.
emacsGit is built from the latest master branch and emacsUnstable is built from the latest tag.
Emacs from git is not guaranteed stable and may break your setup at any time, if it breaks you get to keep both pieces.
The feature/native-comp branch is also provided under the attribute emacsGcc.
This is to be considered highly experimental.
We also provide two attributes named emacsGit-nox and emacsUnstable-nox
if you wish to have Emacs built without X dependencies, as well as the
experimental pgtk branch which supports Wayland natively.
Extra library functionality
This overlay comes with extra functions to generate an Emacs closure
from various types of dependency declaration. (These are abstractions
on top of emacsWithPackages.)
For example, emacsWithPackagesFromUsePackage adds packages which are
required in a user's config via use-package or leaf.
{
environment.systemPackages = [
(emacsWithPackagesFromUsePackage {
# Your Emacs config file. Org mode babel files are also
# supported.
# NB: Config files cannot contain unicode characters, since
# they're being parsed in nix, which lacks unicode
# support.
# config = ./emacs.org;
config = ./emacs.el;
# Package is optional, defaults to pkgs.emacs
package = pkgs.emacsGit;
# By default emacsWithPackagesFromUsePackage will only pull in
# packages with `:ensure`, `:ensure t` or `:ensure <package name>`.
# Setting `alwaysEnsure` to `true` emulates `use-package-always-ensure`
# and pulls in all use-package references not explicitly disabled via
# `:ensure nil` or `:disabled`.
# Note that this is NOT recommended unless you've actually set
# `use-package-always-ensure` to `t` in your config.
alwaysEnsure = true;
# For Org mode babel files, by default only code blocks with
# `:tangle yes` are considered. Setting `alwaysTangle` to `true`
# will include all code blocks missing the `:tangle` argument,
# defaulting it to `yes`.
# Note that this is NOT recommended unless you have something like
# `#+PROPERTY: header-args:emacs-lisp :tangle yes` in your config,
# which defaults `:tangle` to `yes`.
alwaysTangle = true;
# Optionally provide extra packages not in the configuration file.
extraEmacsPackages = epkgs: [
epkgs.cask
];
# Optionally override derivations.
override = epkgs: epkgs // {
weechat = epkgs.melpaPackages.weechat.overrideAttrs(old: {
patches = [ ./weechat-el.patch ];
});
};
})
];
}
Similarly, emacsWithPackagesFromPackageRequires adds packages which
are declared in a .el package file's Package-Requires header, which
can be handy for CI purposes:
...
let
emacsForCI = pkgs.emacsWithPackagesFromPackageRequires {
packageElisp = builtins.readFile ./flycheck.el;
extraEmacsPackages = epkgs: [
epkgs.package-lint
];
};
pkgs.mkShell {
buildInputs = [ emacsForCI ];
}Usage of the overlay
Latest master each rebuild
One way, and probably the most convenient way to pull in this overlay is by just fetching the tarball of latest master on rebuild.
This has side-effects if packages breaks or things like that you may want to be in control of which revision of the overlay you run.
Adding the overlay this way will extend your Emacs packages set to contain
the latest EXWM and dependencies from their respective master and make the
package emacsGit available. These of course change quite rapidly and will
cause compilation time.
{
nixpkgs.overlays = [
(import (builtins.fetchTarball {
url = https://github.com/nix-community/emacs-overlay/archive/master.tar.gz;
}))
];
}Binary cache
You will want to use the nix-community binary cache. Where the overlay's build artefacts are pushed. See here for installation instructions.
Install directly from the overlay
The repository is meant to be used as an overlay as is explained
above. Still, for experimental purposes, you might want to install a
package directly from the overlay. For example, you can install
emacsGit from a clone of this repository with the following command:
nix-build --expr 'with (import <nixpkgs> { overlays = [ (import ./.) ]; }); emacsGit'Community
IRC
#nixos-emacs on freenode