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nixpkgs/pkgs/misc/vim-plugins/vim-utils.nix

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Nix

{stdenv, vim, vimPlugins, vim_configurable, buildEnv, writeText, writeScriptBin
, nix-prefetch-hg, nix-prefetch-git }:
/*
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;
toNames = x:
if builtins.isString x then [x]
else (lib.optional (x ? name) x.name)
++ (x.names or []);
findDependenciesRecursively = {knownPlugins, names}:
let depsOf = name: (builtins.getAttr name knownPlugins).dependencies or [];
recurseNames = path: names: lib.concatMap (name: recurse ([name]++path)) names;
recurse = path:
let name = builtins.head path;
in if builtins.elem name (builtins.tail path)
then throw "recursive vim dependencies"
else [name] ++ recurseNames path (depsOf name);
in lib.uniqList { inputList = recurseNames [] names; };
vimrcFile = {
packages ? null,
vam ? null,
pathogen ? 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 = map (name: knownPlugins.${name}) (findDependenciesRecursively { inherit knownPlugins; names = pathogen.pluginNames; });
pluginsEnv = buildEnv {
name = "pathogen-plugin-env";
paths = map (x: "${x}/${vimPlugins.rtpPath}") plugins;
};
in
''
let &rtp.=(empty(&rtp)?"":',')."${vimPlugins.pathogen.rtp}"
execute pathogen#infect('${pluginsEnv}/{}')
'');
/*
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;
names = findDependenciesRecursively { inherit knownPlugins; names = lib.concatMap toNames vam.pluginDictionaries; };
# 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.showVal x} into a VimL thing not implemented yet";
in assert builtins.hasAttr "vim-addon-manager" knownPlugins;
''
let g:nix_plugin_locations = {}
${lib.concatMapStrings (name: ''
let g:nix_plugin_locations['${name}'] = "${knownPlugins.${name}.rtp}"
'') names}
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, ${toNix p})\n") vam.pluginDictionaries}
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 ? []}:
["mkdir -p $out/pack/${packageName}/start"]
++ (builtins.map (link packageName "start") start)
++ ["mkdir -p $out/pack/${packageName}/opt"]
++ (builtins.map (link packageName "opt") opt)
);
packDir = (packages:
stdenv.mkDerivation rec {
name = "vim-pack-dir";
src = ./.;
installPhase = lib.concatStringsSep
"\n"
(lib.flatten (lib.mapAttrsToList packageLinks packages));
}
);
in
''
set packpath-=~/.vim/after
set packpath+=${packDir packages}
set packpath+=~/.vim/after
'');
# somebody else could provide these implementations
vundleImpl = "";
neobundleImpl = "";
in writeText "vimrc" ''
" minimal setup, generated by NIX
set nocompatible
${vamImpl}
${pathogenImpl}
${vundleImpl}
${neobundleImpl}
${nativeImpl}
filetype indent plugin on | syn on
${customRC}
'';
in
rec {
inherit vimrcFile;
# shell script with custom name passing [-u vimrc] [-U gvimrc] to vim
vimWithRC = {vimExecutable, name ? null, vimrcFile ? null, gvimrcFile ? null}:
let rcOption = o: file: stdenv.lib.optionalString (file != null) "-${o} ${file}";
in writeScriptBin (if name == null then "vim" else name) ''
#!/bin/sh
exec ${vimExecutable} ${rcOption "u" vimrcFile} ${rcOption "U" gvimrcFile} "$@"
'';
# add a customize option to a vim derivation
makeCustomizable = vim: vim // {
customize = {name, vimrcConfig}: vimWithRC {
vimExecutable = "${vim}/bin/vim";
inherit name;
vimrcFile = vimrcFile vimrcConfig;
};
};
pluginnames2Nix = {name, namefiles} : vim_configurable.customize {
inherit name;
vimrcConfig.vam.knownPlugins = vimPlugins;
vimrcConfig.vam.pluginDictionaries = ["vim2nix"];
vimrcConfig.customRC = ''
" Yes - this is impure and will create the cache file and checkout vim-pi
" into ~/.vim/vim-addons
let g:vim_addon_manager.plugin_root_dir = "/tmp/vim2nix-".$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)
'';
};
rtpPath = "share/vim-plugins";
vimHelpTags = ''
vimHelpTags(){
if [ -d "$1/doc" ]; then
${vim}/bin/vim -N -u NONE -i NONE -n -E -s -c "helptags $1/doc" +quit! || echo "docs to build failed"
fi
}
'';
addRtp = path: attrs: derivation:
derivation // { rtp = "${derivation}/${path}"; } // {
overrideAttrs = f: buildVimPlugin (attrs // f attrs);
};
buildVimPlugin = a@{
name,
namePrefix ? "vimplugin-",
src,
unpackPhase ? "",
configurePhase ? "",
buildPhase ? "",
preInstall ? "",
postInstall ? "",
path ? (builtins.parseDrvName name).name,
addonInfo ? null,
...
}:
addRtp "${rtpPath}/${path}" a (stdenv.mkDerivation (a // {
name = namePrefix + name;
inherit unpackPhase configurePhase buildPhase addonInfo preInstall postInstall;
installPhase = ''
runHook preInstall
target=$out/${rtpPath}/${path}
mkdir -p $out/${rtpPath}
cp -r . $target
${vimHelpTags}
vimHelpTags $target
if [ -n "$addonInfo" ]; then
echo "$addonInfo" > $target/addon-info.json
fi
runHook postInstall
'';
}));
vim_with_vim2nix = vim_configurable.customize { name = "vim"; vimrcConfig.vam.pluginDictionaries = [ "vim-addon-vim2nix" ]; };
buildVimPluginFrom2Nix = a: buildVimPlugin ({
buildPhase = ":";
configurePhase =":";
} // a);
requiredPlugins = {
givenKnownPlugins ? null,
vam ? null,
pathogen ? null, ...
}:
let
# This is probably overcomplicated, but I don't understand this well enough to know what's necessary.
knownPlugins = if givenKnownPlugins != null then givenKnownPlugins else
if vam != null && vam ? knownPlugins then vam.knownPlugins else
if pathogen != null && pathogen ? knownPlugins then pathogen.knownPlugins else
vimPlugins;
pathogenNames = map (name: knownPlugins.${name}) (findDependenciesRecursively { inherit knownPlugins; names = pathogen.pluginNames; });
vamNames = findDependenciesRecursively { inherit knownPlugins; names = lib.concatMap toNames vam.pluginDictionaries; };
names = (lib.optionals (pathogen != null) pathogenNames) ++
(lib.optionals (vam != null) vamNames);
in
map (name: knownPlugins.${name}) names;
# test cases:
test_vim_with_vim_addon_nix_using_vam = vim_configurable.customize {
name = "vim-with-vim-addon-nix-using-vam";
vimrcConfig.vam.pluginDictionaries = [{name = "vim-addon-nix"; }];
};
test_vim_with_vim_addon_nix_using_pathogen = vim_configurable.customize {
name = "vim-with-vim-addon-nix-using-pathogen";
vimrcConfig.pathogen.pluginNames = [ "vim-addon-nix" ];
};
test_vim_with_vim_addon_nix = vim_configurable.customize {
name = "vim-with-vim-addon-nix";
vimrcConfig.packages.myVimPackage.start = with vimPlugins; [ vim-addon-nix ];
};
}