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home-manager/modules/programs/neovim.nix

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.programs.neovim;
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fileType = (import ../lib/file-type.nix {
inherit (config.home) homeDirectory;
inherit lib pkgs;
}).fileType;
jsonFormat = pkgs.formats.json { };
extraPython3PackageType = mkOptionType {
name = "extra-python3-packages";
description = "python3 packages in python.withPackages format";
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check = with types;
(x: if isFunction x then isList (x pkgs.python3Packages) else false);
merge = mergeOneOption;
};
# Currently, upstream Neovim is pinned on Lua 5.1 for LuaJIT support.
# This will need to be updated if Neovim ever migrates to a newer
# version of Lua.
extraLua51PackageType = mkOptionType {
name = "extra-lua51-packages";
description = "lua5.1 packages in lua5_1.withPackages format";
check = with types;
(x: if isFunction x then isList (x pkgs.lua51Packages) else false);
merge = mergeOneOption;
};
pluginWithConfigType = types.submodule {
options = {
config = mkOption {
type = types.nullOr types.lines;
description =
"Script to configure this plugin. The scripting language should match type.";
default = null;
};
type = mkOption {
type =
types.either (types.enum [ "lua" "viml" "teal" "fennel" ]) types.str;
description =
"Language used in config. Configurations are aggregated per-language.";
default = "viml";
};
optional = mkEnableOption "optional" // {
description = "Don't load by default (load with :packadd)";
};
plugin = mkOption {
type = types.package;
description = "vim plugin";
};
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runtime = mkOption {
default = { };
# passing actual "${xdg.configHome}/nvim" as basePath was a bit tricky
# due to how fileType.target is implemented
type = fileType "<varname>xdg.configHome/nvim</varname>" "nvim";
example = literalExpression ''
{ "ftplugin/c.vim".text = "setlocal omnifunc=v:lua.vim.lsp.omnifunc"; }
'';
description = lib.mdDoc ''
Set of files that have to be linked in nvim config folder.
'';
};
};
};
allPlugins = cfg.plugins ++ optional cfg.coc.enable {
type = "viml";
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plugin = cfg.coc.package;
config = cfg.coc.pluginConfig;
optional = false;
};
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extraMakeWrapperArgs = lib.optionalString (cfg.extraPackages != [ ])
''--suffix PATH : "${lib.makeBinPath cfg.extraPackages}"'';
extraMakeWrapperLuaCArgs = lib.optionalString (cfg.extraLuaPackages != [ ]) ''
--suffix LUA_CPATH ";" "${
lib.concatMapStringsSep ";" pkgs.lua51Packages.getLuaCPath
cfg.extraLuaPackages
}"'';
extraMakeWrapperLuaArgs = lib.optionalString (cfg.extraLuaPackages != [ ]) ''
--suffix LUA_PATH ";" "${
lib.concatMapStringsSep ";" pkgs.lua51Packages.getLuaPath
cfg.extraLuaPackages
}"'';
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in {
imports = [
(mkRemovedOptionModule [ "programs" "neovim" "withPython" ]
"Python2 support has been removed from neovim.")
(mkRemovedOptionModule [ "programs" "neovim" "extraPythonPackages" ]
"Python2 support has been removed from neovim.")
(mkRemovedOptionModule [ "programs" "neovim" "configure" ] ''
programs.neovim.configure is deprecated.
Other programs.neovim options can override its settings or ignore them.
Please use the other options at your disposal:
configure.packages.*.opt -> programs.neovim.plugins = [ { plugin = ...; optional = true; }]
configure.packages.*.start -> programs.neovim.plugins = [ { plugin = ...; }]
configure.customRC -> programs.neovim.extraConfig
'')
];
options = {
programs.neovim = {
enable = mkEnableOption "Neovim";
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viAlias = mkOption {
type = types.bool;
default = false;
description = ''
Symlink <command>vi</command> to <command>nvim</command> binary.
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'';
};
vimAlias = mkOption {
type = types.bool;
default = false;
description = ''
Symlink <command>vim</command> to <command>nvim</command> binary.
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'';
};
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vimdiffAlias = mkOption {
type = types.bool;
default = false;
description = ''
Alias <command>vimdiff</command> to <command>nvim -d</command>.
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'';
};
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withNodeJs = mkOption {
type = types.bool;
default = false;
description = ''
Enable node provider. Set to <literal>true</literal> to
use Node plugins.
'';
};
withRuby = mkOption {
type = types.nullOr types.bool;
default = true;
description = ''
Enable ruby provider.
'';
};
withPython3 = mkOption {
type = types.bool;
default = true;
description = ''
Enable Python 3 provider. Set to <literal>true</literal> to
use Python 3 plugins.
'';
};
extraPython3Packages = mkOption {
type = with types; either extraPython3PackageType (listOf package);
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default = (_: [ ]);
defaultText = literalExpression "ps: [ ]";
example = literalExpression "(ps: with ps; [ python-language-server ])";
description = ''
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A function in python.withPackages format, which returns a
list of Python 3 packages required for your plugins to work.
'';
};
extraLuaPackages = mkOption {
type = with types; either extraLua51PackageType (listOf package);
default = [ ];
defaultText = literalExpression "[ ]";
example = literalExpression "(ps: with ps; [ luautf8 ])";
description = ''
A function in lua5_1.withPackages format, which returns a
list of Lua packages required for your plugins to work.
'';
};
generatedConfigViml = mkOption {
type = types.lines;
visible = true;
readOnly = true;
description = ''
Generated vimscript config.
'';
};
generatedConfigs = mkOption {
type = types.attrsOf types.lines;
visible = true;
readOnly = true;
example = literalExpression ''
{
viml = '''
" Generated by home-manager
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map <leader> ,
''';
lua = '''
-- Generated by home-manager
vim.opt.background = "dark"
''';
}'';
description = ''
Generated configurations with as key their language (set via type).
'';
};
package = mkOption {
type = types.package;
default = pkgs.neovim-unwrapped;
defaultText = literalExpression "pkgs.neovim-unwrapped";
description = "The package to use for the neovim binary.";
};
finalPackage = mkOption {
type = types.package;
visible = false;
readOnly = true;
description = "Resulting customized neovim package.";
};
extraConfig = mkOption {
type = types.lines;
default = "";
example = ''
set nobackup
'';
description = ''
Custom vimrc lines.
'';
};
extraPackages = mkOption {
type = with types; listOf package;
default = [ ];
example = literalExpression "[ pkgs.shfmt ]";
description = "Extra packages available to nvim.";
};
plugins = mkOption {
type = with types; listOf (either package pluginWithConfigType);
default = [ ];
example = literalExpression ''
with pkgs.vimPlugins; [
yankring
vim-nix
{ plugin = vim-startify;
config = "let g:startify_change_to_vcs_root = 0";
}
]
'';
description = ''
List of vim plugins to install optionally associated with
configuration to be placed in init.vim.
</para><para>
This option is mutually exclusive with <varname>configure</varname>.
'';
};
coc = {
enable = mkEnableOption "Coc";
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package = mkOption {
type = types.package;
default = pkgs.vimPlugins.coc-nvim;
defaultText = literalExpression "pkgs.vimPlugins.coc-nvim";
description = "The package to use for the CoC plugin.";
};
settings = mkOption {
type = jsonFormat.type;
default = { };
example = literalExpression ''
{
"suggest.noselect" = true;
"suggest.enablePreview" = true;
"suggest.enablePreselect" = false;
"suggest.disableKind" = true;
languageserver = {
haskell = {
command = "haskell-language-server-wrapper";
args = [ "--lsp" ];
rootPatterns = [
"*.cabal"
"stack.yaml"
"cabal.project"
"package.yaml"
"hie.yaml"
];
filetypes = [ "haskell" "lhaskell" ];
};
};
};
'';
description = ''
Extra configuration lines to add to
<filename>$XDG_CONFIG_HOME/nvim/coc-settings.json</filename>
See
<link xlink:href="https://github.com/neoclide/coc.nvim/wiki/Using-the-configuration-file" />
for options.
'';
};
pluginConfig = mkOption {
type = types.lines;
default = "";
description = "Script to configure CoC. Must be viml.";
};
};
};
};
config = let
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defaultPlugin = {
type = "viml";
plugin = null;
config = null;
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optional = false;
runtime = { };
};
# transform all plugins into a standardized attrset
pluginsNormalized =
map (x: defaultPlugin // (if (x ? plugin) then x else { plugin = x; }))
allPlugins;
suppressNotVimlConfig = p:
if p.type != "viml" then p // { config = null; } else p;
neovimConfig = pkgs.neovimUtils.makeNeovimConfig {
inherit (cfg) extraPython3Packages withPython3 withRuby viAlias vimAlias;
withNodeJs = cfg.withNodeJs || cfg.coc.enable;
plugins = map suppressNotVimlConfig pluginsNormalized;
customRC = cfg.extraConfig;
};
in mkIf cfg.enable {
programs.neovim.generatedConfigViml = neovimConfig.neovimRcContent;
programs.neovim.generatedConfigs = let
grouped = lib.lists.groupBy (x: x.type) pluginsNormalized;
concatConfigs = lib.concatMapStrings (p: p.config);
configsOnly = lib.foldl
(acc: p: if p.config != null then acc ++ [ (p.config) ] else acc) [ ];
in mapAttrs (name: vals: lib.concatStringsSep "\n" (configsOnly vals))
grouped;
home.packages = [ cfg.finalPackage ];
xdg.configFile =
let hasLuaConfig = hasAttr "lua" config.programs.neovim.generatedConfigs;
in mkMerge (
# writes runtime
(map (x: x.runtime) pluginsNormalized) ++ [{
"nvim/init.lua" = let
luaRcContent =
lib.optionalString (neovimConfig.neovimRcContent != "")
"vim.cmd [[source ${
pkgs.writeText "nvim-init-home-manager.vim"
neovimConfig.neovimRcContent
}]]" + lib.optionalString hasLuaConfig
config.programs.neovim.generatedConfigs.lua;
in mkIf (luaRcContent != "") { text = luaRcContent; };
"nvim/coc-settings.json" = mkIf cfg.coc.enable {
source = jsonFormat.generate "coc-settings.json" cfg.coc.settings;
};
}]);
programs.neovim.finalPackage = pkgs.wrapNeovimUnstable cfg.package
(neovimConfig // {
wrapperArgs = (lib.escapeShellArgs neovimConfig.wrapperArgs) + " "
+ extraMakeWrapperArgs + " " + extraMakeWrapperLuaCArgs + " "
+ extraMakeWrapperLuaArgs;
wrapRc = false;
});
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programs.bash.shellAliases = mkIf cfg.vimdiffAlias { vimdiff = "nvim -d"; };
programs.fish.shellAliases = mkIf cfg.vimdiffAlias { vimdiff = "nvim -d"; };
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programs.zsh.shellAliases = mkIf cfg.vimdiffAlias { vimdiff = "nvim -d"; };
};
}