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nixpkgs/pkgs/misc/vim-plugins/vim-utils.nix
2020-01-07 13:13:41 -08:00

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Nix

{ stdenv, vim, vimPlugins, vim_configurable, neovim, buildEnv, writeText, writeScriptBin
, nix-prefetch-hg, nix-prefetch-git
, fetchFromGitHub, runtimeShell
}:
/*
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 (stdenv) 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";
vimrcFile = {
packages ? null,
vam ? null,
pathogen ? null,
plug ? null,
customRC ? ""
}:
let
/* pathogen mostly can set &rtp at startup time. Its used very commonly.
*/
pathogenImpl = lib.optionalString (pathogen != null)
(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)?"":',')."${vimPlugins.pathogen.rtp}"
execute pathogen#infect('${pluginsEnv}/{}')
'');
/* vim-plug is an extremely popular vim plugin manager.
*/
plugImpl = lib.optionalString (plug != null)
(''
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;
# Vim almost reads JSON, so eventually JSON support should be added to Nix
# TODO: proper quoting
toNix = x:
if (builtins.isString x) then "'${x}'"
else if builtins.isAttrs x && builtins ? out then toNix x # a derivation
else if builtins.isAttrs x then "{${lib.concatStringsSep ", " (lib.mapAttrsToList (n: v: "${toNix n}: ${toNix v}") x)}}"
else if builtins.isList x then "[${lib.concatMapStringsSep ", " toNix x}]"
else throw "turning ${lib.generators.toPretty {} x} into a VimL thing not implemented yet";
in assert builtins.hasAttr "vim-addon-manager" knownPlugins;
''
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 about which plugins to load when:
let l = []
${lib.concatMapStrings (p: "call add(l, {'name': '${p.pname}'})\n") plugins}
call vam#Scripts(l, {})
'');
nativeImpl = lib.optionalString (packages != null)
(let
link = (packageName: dir: pluginPath: "ln -sf ${pluginPath}/share/vim-plugins/* $out/pack/${packageName}/${dir}");
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 (link packageName "start") (lib.unique (startWithDeps ++ depsOfOptionalPlugins)))
++ ["mkdir -p $out/pack/${packageName}/opt"]
++ (builtins.map (link 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-=~/.vim/after
set packpath+=${packDir packages}
set packpath+=~/.vim/after
'');
in writeText "vimrc" ''
" minimal setup, generated by NIX
set nocompatible
${vamImpl}
${pathogenImpl}
${plugImpl}
${nativeImpl}
filetype indent plugin on | syn on
${customRC}
'';
in
rec {
inherit vimrcFile;
# shell script with custom name passing [-u vimrc] [-U gvimrc] to vim
vimWithRC = {
vimExecutable,
gvimExecutable,
vimManPages,
wrapManual,
wrapGui,
name ? "vim",
vimrcFile ? null,
gvimrcFile ? null,
vimExecutableName,
gvimExecutableName,
}:
let
rcOption = o: file: stdenv.lib.optionalString (file != null) "-${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)
'';
};
vim_with_vim2nix = vim_configurable.customize { name = "vim"; vimrcConfig.vam.pluginDictionaries = [ "vim-addon-vim2nix" ]; };
inherit (import ./build-vim-plugin.nix { inherit 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;
# test cases:
test_vim_with_vim_nix_using_vam = vim_configurable.customize {
name = "vim-with-vim-addon-nix-using-vam";
vimrcConfig.vam.pluginDictionaries = [{name = "vim-nix"; }];
};
test_vim_with_vim_nix_using_pathogen = vim_configurable.customize {
name = "vim-with-vim-addon-nix-using-pathogen";
vimrcConfig.pathogen.pluginNames = [ "vim-nix" ];
};
test_vim_with_vim_nix_using_plug = vim_configurable.customize {
name = "vim-with-vim-addon-nix-using-plug";
vimrcConfig.plug.plugins = with vimPlugins; [ vim-nix ];
};
test_vim_with_vim_nix = vim_configurable.customize {
name = "vim-with-vim-addon-nix";
vimrcConfig.packages.myVimPackage.start = with vimPlugins; [ vim-nix ];
};
# only neovim makes use of `requiredPlugins`, test this here
test_nvim_with_vim_nix_using_pathogen = neovim.override {
configure.pathogen.pluginNames = [ "vim-nix" ];
};
# regression test for https://github.com/NixOS/nixpkgs/issues/53112
# The user may have specified their own plugins which may not be formatted
# exactly as the generated ones. In particular, they may not have the `pname`
# attribute.
test_vim_with_custom_plugin = vim_configurable.customize {
name = "vim_with_custom_plugin";
vimrcConfig.vam.knownPlugins =
vimPlugins // ({
vim-trailing-whitespace = buildVimPluginFrom2Nix {
name = "vim-trailing-whitespace";
src = fetchFromGitHub {
owner = "bronson";
repo = "vim-trailing-whitespace";
rev = "4c596548216b7c19971f8fc94e38ef1a2b55fee6";
sha256 = "0f1cpnp1nxb4i5hgymjn2yn3k1jwkqmlgw1g02sq270lavp2dzs9";
};
# make sure string dependencies are handled
dependencies = [ "vim-nix" ];
};
});
vimrcConfig.vam.pluginDictionaries = [ { names = [ "vim-trailing-whitespace" ]; } ];
};
# system remote plugin manifest should be generated, deoplete should be usable
# without the user having to do `UpdateRemotePlugins`. To test, launch neovim
# and do `:call deoplete#enable()`. It will print an error if the remote
# plugin is not registered.
test_nvim_with_remote_plugin = neovim.override {
configure.pathogen.pluginNames = with vimPlugins; [ deoplete-nvim ];
};
}