nixpkgs/pkgs/misc/vim-plugins/vim-utils.nix
Matthieu Coudron 06684792fb vimPlugins.plenary: init from lua package
This commit shows how to convert luarocks packages into (neo)vim ones.
The advantage for neovim lua plugins to register their rockspec (aka
package definition) is that the plugin can express its dependencies and
a few metadata through it.
2021-08-09 21:23:29 +02:00

502 lines
18 KiB
Nix

# tests available at pkgs/test/vim
{ lib, stdenv, vim, vimPlugins, vim_configurable, buildEnv, writeText, writeScriptBin
, nix-prefetch-hg, nix-prefetch-git
, fetchFromGitHub, runtimeShell
, hasLuaModule
}:
/*
USAGE EXAMPLE
=============
Install Vim like this eg using nixos option environment.systemPackages which will provide
vim-with-plugins in PATH:
vim_configurable.customize {
name = "vim-with-plugins";
# add custom .vimrc lines like this:
vimrcConfig.customRC = ''
set hidden
'';
# store your plugins in Vim packages
vimrcConfig.packages.myVimPackage = with pkgs.vimPlugins; {
# loaded on launch
start = [ youcompleteme fugitive ];
# manually loadable by calling `:packadd $plugin-name`
opt = [ phpCompletion elm-vim ];
# To automatically load a plugin when opening a filetype, add vimrc lines like:
# autocmd FileType php :packadd phpCompletion
};
# plugins can also be managed by VAM
vimrcConfig.vam.knownPlugins = pkgs.vimPlugins; # optional
vimrcConfig.vam.pluginDictionaries = [
# load always
{ name = "youcompleteme"; }
{ names = ["youcompleteme" "foo"]; }
# only load when opening a .php file
{ name = "phpCompletion"; ft_regex = "^php\$"; }
{ name = "phpCompletion"; filename_regex = "^.php\$"; }
# provide plugin which can be loaded manually:
{ name = "phpCompletion"; tag = "lazy"; }
# full documentation at github.com/MarcWeber/vim-addon-manager
];
# there is a pathogen implementation as well, but its startup is slower and [VAM] has more feature
# vimrcConfig.pathogen.knownPlugins = vimPlugins; # optional
# vimrcConfig.pathogen.pluginNames = ["vim-addon-nix"];
};
WHAT IS A VIM PLUGIN?
=====================
Typical plugin files:
plugin/P1.vim
autoload/P1.vim
ftplugin/xyz.vim
doc/plugin-documentation.txt (traditional documentation)
README(.md) (nowadays thanks to github)
Vim offers the :h rtp setting which works for most plugins. Thus adding
this to your .vimrc should make most plugins work:
set rtp+=~/.nix-profile/share/vim-plugins/youcompleteme
" or for p in ["youcompleteme"] | exec 'set rtp+=~/.nix-profile/share/vim-plugins/'.p | endfor
which is what the [VAM]/pathogen solutions above basically do.
Learn about about plugin Vim plugin mm managers at
http://vim-wiki.mawercer.de/wiki/topic/vim%20plugin%20managment.html.
The documentation can be accessed by Vim's :help command if it was tagged.
See vimHelpTags sample code below.
CONTRIBUTING AND CUSTOMIZING
============================
The example file pkgs/misc/vim-plugins/default.nix provides both:
* manually mantained plugins
* plugins created by VAM's nix#ExportPluginsForNix implementation
I highly recommend to lookup vim plugin attribute names at the [vim-pi] project
which is a database containing all plugins from
vim.org and quite a lot of found at github and similar sources. vim-pi's documented purpose
is to associate vim.org script ids to human readable names so that dependencies
can be describe easily.
How to find a name?
* http://vam.mawercer.de/ or VAM's
* grep vim-pi
* use VAM's completion or :AddonsInfo command
It might happen than a plugin is not known by vim-pi yet. We encourage you to
contribute to vim-pi so that plugins can be updated automatically.
CREATING DERVITATIONS AUTOMATICALLY BY PLUGIN NAME
==================================================
Most convenient is to use a ~/.vim-scripts file putting a plugin name into each line
as documented by [VAM]'s README.md
It is the same format you pass to vimrcConfig.vam.pluginDictionaries from the
usage example above.
Then create a temp vim file and insert:
let opts = {}
let opts.path_to_nixpkgs = '/etc/nixos/nixpkgs'
let opts.cache_file = '/tmp/export-vim-plugin-for-nix-cache-file'
let opts.plugin_dictionaries = map(readfile("vim-plugins"), 'eval(v:val)')
" add more files
" let opts.plugin_dictionaries += map(.. other file )
call nix#ExportPluginsForNix(opts)
Then ":source %" it.
nix#ExportPluginsForNix is provided by ./vim2nix
A buffer will open containing the plugin derivation lines as well list
fitting the vimrcConfig.vam.pluginDictionaries option.
Thus the most simple usage would be:
vim_with_plugins =
let vim = vim_configurable;
inherit (vimUtil.override {inherit vim}) rtpPath addRtp buildVimPlugin vimHelpTags;
vimPlugins = [
# the derivation list from the buffer created by nix#ExportPluginsForNix
# don't set which will default to pkgs.vimPlugins
];
in vim.customize {
name = "vim-with-plugins";
vimrcConfig.customRC = '' .. '';
vimrcConfig.vam.knownPlugins = vimPlugins;
vimrcConfig.vam.pluginDictionaries = [
# the plugin list form ~/.vim-scripts turned into nix format added to
# the buffer created by the nix#ExportPluginsForNix
];
}
vim_with_plugins can be installed like any other application within Nix.
[VAM] https://github.com/MarcWeber/vim-addon-manager
[vim-pi] https://bitbucket.org/vimcommunity/vim-pi
*/
let
inherit lib;
# make sure a plugin is a derivation and its dependencies are derivations. If
# plugin already is a derivation, this is a no-op. If it is a string, it is
# looked up in knownPlugins.
pluginToDrv = knownPlugins: plugin:
let
drv =
if builtins.isString plugin then
# make sure `pname` is set to that we are able to convert the derivation
# back to a string.
( knownPlugins.${plugin} // { pname = plugin; })
else
plugin;
in
# make sure all the dependencies of the plugin are also derivations
drv // { dependencies = map (pluginToDrv knownPlugins) (drv.dependencies or []); };
# transitive closure of plugin dependencies (plugin needs to be a derivation)
transitiveClosure = plugin:
[ plugin ] ++ (
lib.unique (builtins.concatLists (map transitiveClosure plugin.dependencies or []))
);
findDependenciesRecursively = plugins: lib.concatMap transitiveClosure plugins;
vamDictToNames = x:
if builtins.isString x then [x]
else (lib.optional (x ? name) x.name)
++ (x.names or []);
rtpPath = "share/vim-plugins";
nativeImpl = packages:
(let
# dir is "start" or "opt"
linkLuaPlugin = plugin: packageName: dir: ''
mkdir -p $out/pack/${packageName}/${dir}/${plugin.pname}/lua
ln -sf ${plugin}/share/lua/5.1/* $out/pack/${packageName}/${dir}/${plugin.pname}/lua
ln -sf ${plugin}/${plugin.pname}-${plugin.version}-rocks/${plugin.pname}/${plugin.version}/* $out/pack/${packageName}/${dir}/${plugin.pname}/
'';
linkVimlPlugin = pluginPath: packageName: dir:
"ln -sf ${pluginPath}/${rtpPath}/* $out/pack/${packageName}/${dir}";
# (builtins.trace pluginPath )
link = pluginPath: if hasLuaModule pluginPath
then linkLuaPlugin pluginPath
else linkVimlPlugin pluginPath;
packageLinks = (packageName: {start ? [], opt ? []}:
let
# `nativeImpl` expects packages to be derivations, not strings (as
# opposed to older implementations that have to maintain backwards
# compatibility). Therefore we don't need to deal with "knownPlugins"
# and can simply pass `null`.
depsOfOptionalPlugins = lib.subtractLists opt (findDependenciesRecursively opt);
startWithDeps = findDependenciesRecursively start;
in
[ "mkdir -p $out/pack/${packageName}/start" ]
# To avoid confusion, even dependencies of optional plugins are added
# to `start` (except if they are explicitly listed as optional plugins).
++ (builtins.map (x: link x packageName "start") (lib.unique (startWithDeps ++ depsOfOptionalPlugins)))
++ ["mkdir -p $out/pack/${packageName}/opt"]
++ (builtins.map (x: link x packageName "opt") opt)
);
packDir = (packages:
stdenv.mkDerivation {
name = "vim-pack-dir";
src = ./.;
installPhase = lib.concatStringsSep "\n" (lib.flatten (lib.mapAttrsToList packageLinks packages));
preferLocalBuild = true;
}
);
in
''
set packpath^=${packDir packages}
set runtimepath^=${packDir packages}
'');
/* Generates a vimrc string
packages is an attrset with {name: { start = [ vim derivations ]; opt = [ vim derivations ]; }
Example:
vimrcContent {
packages = { home-manager = { start = [vimPlugins.vim-fugitive]; opt = [];};
beforePlugins = '';
customRc = ''let mapleader = " "'';
};
*/
vimrcContent = {
packages ? null,
vam ? null,
pathogen ? null,
plug ? null,
beforePlugins ? ''
" configuration generated by NIX
set nocompatible
'',
customRC ? null
}:
let
/* pathogen mostly can set &rtp at startup time. Its used very commonly.
*/
pathogenImpl = let
knownPlugins = pathogen.knownPlugins or vimPlugins;
plugins = findDependenciesRecursively (map (pluginToDrv knownPlugins) pathogen.pluginNames);
pluginsEnv = buildEnv {
name = "pathogen-plugin-env";
paths = map (x: "${x}/${rtpPath}") plugins;
};
in
''
let &rtp.=(empty(&rtp)?"":',')."${vimPlugins.vim-pathogen.rtp}"
execute pathogen#infect('${pluginsEnv}/{}')
filetype indent plugin on | syn on
'';
/* vim-plug is an extremely popular vim plugin manager.
*/
plugImpl =
(''
source ${vimPlugins.vim-plug.rtp}/plug.vim
call plug#begin('/dev/null')
'' + (lib.concatMapStringsSep "\n" (pkg: "Plug '${pkg.rtp}'") plug.plugins) + ''
call plug#end()
'');
/*
vim-addon-manager = VAM
* maps names to plugin location
* manipulates &rtp at startup time
or when Vim has been running for a while
* can activate plugins laziy (eg when loading a specific filetype)
* knows about vim plugin dependencies (addon-info.json files)
* still is minimalistic (only loads one file), the "check out" code it also
has only gets loaded when a plugin is requested which is not found on disk
yet
*/
vamImpl = lib.optionalString (vam != null)
(let
knownPlugins = vam.knownPlugins or vimPlugins;
# plugins specified by the user
specifiedPlugins = map (pluginToDrv knownPlugins) (lib.concatMap vamDictToNames vam.pluginDictionaries);
# plugins with dependencies
plugins = findDependenciesRecursively specifiedPlugins;
# Convert scalars, lists, and attrs, to VimL equivalents
toVimL = x:
if builtins.isString x then "'${lib.replaceStrings [ "\n" "'" ] [ "\n\\ " "''" ] x}'"
else if builtins.isAttrs x && builtins ? out then toVimL x # a derivation
else if builtins.isAttrs x then "{${lib.concatStringsSep ", " (lib.mapAttrsToList (n: v: "${toVimL n}: ${toVimL v}") x)}}"
else if builtins.isList x then "[${lib.concatMapStringsSep ", " toVimL x}]"
else if builtins.isInt x || builtins.isFloat x then builtins.toString x
else if builtins.isBool x then (if x then "1" else "0")
else throw "turning ${lib.generators.toPretty {} x} into a VimL thing not implemented yet";
in assert builtins.hasAttr "vim-addon-manager" knownPlugins;
''
filetype indent plugin on | syn on
let g:nix_plugin_locations = {}
${lib.concatMapStrings (plugin: ''
let g:nix_plugin_locations['${plugin.pname}'] = "${plugin.rtp}"
'') plugins}
let g:nix_plugin_locations['vim-addon-manager'] = "${knownPlugins.vim-addon-manager.rtp}"
let g:vim_addon_manager = {}
if exists('g:nix_plugin_locations')
" nix managed config
" override default function making VAM aware of plugin locations:
fun! NixPluginLocation(name)
let path = get(g:nix_plugin_locations, a:name, "")
return path == "" ? vam#DefaultPluginDirFromName(a:name) : path
endfun
let g:vim_addon_manager.plugin_dir_by_name = 'NixPluginLocation'
" tell Vim about VAM:
let &rtp.=(empty(&rtp)?"":','). g:nix_plugin_locations['vim-addon-manager']
else
" standalone config
let &rtp.=(empty(&rtp)?"":',').c.plugin_root_dir.'/vim-addon-manager'
if !isdirectory(c.plugin_root_dir.'/vim-addon-manager/autoload')
" checkout VAM
execute '!git clone --depth=1 https://github.com/MarcWeber/vim-addon-manager '
\ shellescape(c.plugin_root_dir.'/vim-addon-manager', 1)
endif
endif
" tell vam which plugins to load, and when:
let l = []
${lib.concatMapStrings (p: "call add(l, ${toVimL p})\n") vam.pluginDictionaries}
call vam#Scripts(l, {})
'');
entries = [
beforePlugins
vamImpl
]
++ lib.optional (packages != null && packages != []) (nativeImpl packages)
++ lib.optional (pathogen != null) pathogenImpl
++ lib.optional (plug != null) plugImpl
++ [ customRC ];
in
lib.concatStringsSep "\n" (lib.filter (x: x != null && x != "") entries);
vimrcFile = settings: writeText "vimrc" (vimrcContent settings);
in
rec {
inherit vimrcFile;
inherit vimrcContent;
# shell script with custom name passing [-u vimrc] [-U gvimrc] to vim
vimWithRC = {
vimExecutable,
gvimExecutable,
vimManPages,
wrapManual,
wrapGui,
name ? "vim",
vimrcFile ? null,
gvimrcFile ? null,
vimExecutableName,
gvimExecutableName,
}:
let
rcOption = o: file: lib.optionalString (file != null) "-${o} ${file}";
vimWrapperScript = writeScriptBin vimExecutableName ''
#!${runtimeShell}
exec ${vimExecutable} ${rcOption "u" vimrcFile} ${rcOption "U" gvimrcFile} "$@"
'';
gvimWrapperScript = writeScriptBin gvimExecutableName ''
#!${stdenv.shell}
exec ${gvimExecutable} ${rcOption "u" vimrcFile} ${rcOption "U" gvimrcFile} "$@"
'';
in
buildEnv {
inherit name;
paths = [
vimWrapperScript
] ++ lib.optional wrapGui gvimWrapperScript
++ lib.optional wrapManual vimManPages
;
};
# add a customize option to a vim derivation
makeCustomizable = vim: vim // {
customize = {
name,
vimrcConfig,
wrapManual ? true,
wrapGui ? false,
vimExecutableName ? name,
gvimExecutableName ? (lib.concatStrings [ "g" name ]),
}: vimWithRC {
vimExecutable = "${vim}/bin/vim";
gvimExecutable = "${vim}/bin/gvim";
inherit name wrapManual wrapGui vimExecutableName gvimExecutableName;
vimrcFile = vimrcFile vimrcConfig;
vimManPages = buildEnv {
name = "vim-doc";
paths = [ vim ];
pathsToLink = [ "/share/man" ];
};
};
override = f: makeCustomizable (vim.override f);
overrideAttrs = f: makeCustomizable (vim.overrideAttrs f);
};
pluginnames2Nix = {name, namefiles} : vim_configurable.customize {
inherit name;
vimrcConfig.vam.knownPlugins = vimPlugins;
vimrcConfig.vam.pluginDictionaries = ["vim2nix"];
vimrcConfig.customRC = ''
" Yes - this is impure and will create the cache file and checkout vim-pi
" into ~/.vim/vim-addons
let g:vim_addon_manager.plugin_root_dir = "/tmp/vim2nix-".$USER
if !isdirectory(g:vim_addon_manager.plugin_root_dir)
call mkdir(g:vim_addon_manager.plugin_root_dir)
else
echom repeat("=", 80)
echom "WARNING: reusing cache directory :".g:vim_addon_manager.plugin_root_dir
echom repeat("=", 80)
endif
let opts = {}
let opts.nix_prefetch_git = "${nix-prefetch-git}/bin/nix-prefetch-git"
let opts.nix_prefetch_hg = "${nix-prefetch-hg}/bin/nix-prefetch-hg"
let opts.cache_file = g:vim_addon_manager.plugin_root_dir.'/cache'
let opts.plugin_dictionaries = []
${lib.concatMapStrings (file: "let opts.plugin_dictionaries += map(readfile(\"${file}\"), 'eval(v:val)')\n") namefiles }
" uncomment for debugging failures
" let opts.try_catch = 0
" add more files
" let opts.plugin_dictionaries += map(.. other file )
call nix#ExportPluginsForNix(opts)
'';
};
inherit (import ./build-vim-plugin.nix { inherit lib stdenv rtpPath vim; }) buildVimPlugin buildVimPluginFrom2Nix;
# used to figure out which python dependencies etc. neovim needs
requiredPlugins = {
packages ? {},
givenKnownPlugins ? null,
vam ? null,
pathogen ? null,
plug ? null, ...
}:
let
# This is probably overcomplicated, but I don't understand this well enough to know what's necessary.
knownPlugins = if givenKnownPlugins != null then givenKnownPlugins else
if vam != null && vam ? knownPlugins then vam.knownPlugins else
if pathogen != null && pathogen ? knownPlugins then pathogen.knownPlugins else
vimPlugins;
pathogenPlugins = findDependenciesRecursively (map (pluginToDrv knownPlugins) pathogen.pluginNames);
vamPlugins = findDependenciesRecursively (map (pluginToDrv knownPlugins) (lib.concatMap vamDictToNames vam.pluginDictionaries));
nonNativePlugins = (lib.optionals (pathogen != null) pathogenPlugins)
++ (lib.optionals (vam != null) vamPlugins)
++ (lib.optionals (plug != null) plug.plugins);
nativePluginsConfigs = lib.attrsets.attrValues packages;
nativePlugins = lib.concatMap ({start?[], opt?[], knownPlugins?vimPlugins}: start++opt) nativePluginsConfigs;
in
nativePlugins ++ nonNativePlugins;
}