e7820571fc
* What is autoload?
Basically, it allows you to delay the loading of a package[1].
* What is a name-autoloads.el file?
When installing a package using package.el, Emacs generates[1] a
name-autoloads.el file for that package, which is used to autoload the
principal user commands defined[2][3] in the package.
* What problem does this patch solve?
There are some autoload commands defined[3] by mu4e. Before, those
autoload commands cannot be autoloaded because of the missing
mu4e-autoloads.el file since mu4e installed from nixpkgs does not use
package.el. This patch fixes that.
To sum up, with this patch, you can call (mu4e) without
calling (require 'mu4e) first.
* Isn't it better to contribute to the build system of the upstream mu
project to generate that mu4e-autoloads.el file?
It seems impossible[4] to do so.
[1]: https://www.gnu.org/software/emacs/manual/html_node/elisp/Autoload.html
[2]: https://www.gnu.org/software/emacs/manual/html_node/elisp/Packaging-Basics.html
[3]: 581f8d7e92/mu4e/mu4e.el (L58)
[4]: https://github.com/djcb/mu/pull/2313
67 lines
1.8 KiB
Nix
67 lines
1.8 KiB
Nix
{ lib
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, stdenv
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, fetchFromGitHub
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, meson
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, ninja
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, pkg-config
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, coreutils
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, emacs
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, glib
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, gmime3
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, texinfo
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, xapian
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}:
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stdenv.mkDerivation rec {
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pname = "mu";
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version = "1.10.3";
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src = fetchFromGitHub {
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owner = "djcb";
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repo = "mu";
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rev = "v${version}";
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hash = "sha256-AqIPdKdNKLnAHIlqgs8zzm7j+iwNvDFWslvp8RjQPnI=";
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};
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postPatch = ''
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# Fix mu4e-builddir (set it to $out)
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substituteInPlace mu4e/mu4e-config.el.in \
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--replace "@abs_top_builddir@" "$out"
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substituteInPlace lib/utils/mu-test-utils.cc \
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--replace "/bin/rm" "${coreutils}/bin/rm"
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'';
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# AOT native-comp, mostly copied from pkgs/build-support/emacs/generic.nix
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postInstall = lib.optionalString (emacs.nativeComp or false) ''
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mkdir -p $out/share/emacs/native-lisp
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export EMACSLOADPATH=$out/share/emacs/site-lisp/mu4e:
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export EMACSNATIVELOADPATH=$out/share/emacs/native-lisp:
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find $out/share/emacs -type f -name '*.el' -print0 \
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| xargs -0 -I {} -n 1 -P $NIX_BUILD_CORES sh -c \
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"emacs --batch --eval '(setq large-file-warning-threshold nil)' -f batch-native-compile {} || true"
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'' + ''
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emacs --batch -l package --eval "(package-generate-autoloads \"mu4e\" \"$out/share/emacs/site-lisp/mu4e\")"
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'';
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buildInputs = [ emacs glib gmime3 texinfo xapian ];
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mesonFlags = [
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"-Dguile=disabled"
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"-Dreadline=disabled"
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];
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nativeBuildInputs = [ pkg-config meson ninja ];
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doCheck = true;
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meta = with lib; {
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description = "A collection of utilities for indexing and searching Maildirs";
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license = licenses.gpl3Plus;
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homepage = "https://www.djcbsoftware.nl/code/mu/";
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changelog = "https://github.com/djcb/mu/releases/tag/v${version}";
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maintainers = with maintainers; [ antono chvp peterhoeg ];
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platforms = platforms.unix;
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};
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}
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