762 lines
25 KiB
Nix
762 lines
25 KiB
Nix
# This module provides personalised helpers for managing plugins
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# using lazy.nvim and a set of custom runtime primitives.
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{ pkgs, lib, config, ... }:
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let
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inherit (lib) types;
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cfg = config.satellite.neovim;
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# {{{ Custom types
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myTypes = {
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oneOrMany = t: types.either t (types.listOf t);
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zeroOrMore = t: types.nullOr (myTypes.oneOrMany t);
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# {{{ Lua code
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luaCode = types.nullOr (types.oneOf [
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types.str
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types.path
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myTypes.luaLiteral
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]);
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luaLiteral = types.submodule {
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options.__luaEncoderTag = lib.mkOption {
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type = types.enum [ "lua" ];
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};
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options.value = lib.mkOption {
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type = types.str;
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};
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};
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luaValue = types.nullOr (types.oneOf [
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types.str
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types.number
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types.bool
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(types.attrsOf myTypes.luaValue)
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(types.listOf myTypes.luaValue)
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]);
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# }}}
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# {{{ Lazy key
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lazyKey = types.oneOf [
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types.str
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(types.submodule
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{
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options.mapping = lib.mkOption {
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type = types.str;
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description = "The lhs of the neovim mapping";
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};
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options.action = lib.mkOption {
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default = null;
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type = types.nullOr (types.oneOf [
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types.str
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myTypes.luaLiteral
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]);
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description = "The rhs of the neovim mapping";
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};
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options.ft = lib.mkOption {
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default = null;
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type = myTypes.zeroOrMore types.str;
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description = "Filetypes on which this keybind should take effect";
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};
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options.mode = lib.mkOption {
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default = null;
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type = types.nullOr types.str;
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description = "The vim modes the mapping should take effect in";
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};
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options.desc = lib.mkOption {
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default = null;
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type = types.nullOr types.str;
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description = "Description for the current keymapping";
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};
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})
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];
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# }}}
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# {{{ Tempest key
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tempestKey = types.submodule {
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options = {
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mapping = lib.mkOption {
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example = "<leader>a";
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type = types.str;
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description = "The lhs of the neovim mapping";
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};
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action = lib.mkOption {
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example = "<C-^>";
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type = types.either types.str myTypes.luaLiteral;
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description = "The rhs of the neovim mapping";
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};
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bufnr = lib.mkOption {
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default = null;
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example = true;
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type = types.nullOr
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(types.oneOf [
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types.bool
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types.integer
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myTypes.luaLiteral
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]);
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description = ''
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The index of the buffer to apply local keymaps to. Can be set to
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`true` to refer to the current buffer
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'';
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};
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mode = lib.mkOption {
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default = null;
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example = "nov";
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type = types.nullOr types.str;
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description = "The vim modes the mapping should take effect in";
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};
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silent = lib.mkOption {
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default = null;
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example = true;
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type = types.nullOr types.bool;
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description = "Whether the logs emitted by the keymap should be supressed";
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};
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expr = lib.mkOption {
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default = null;
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example = true;
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type = types.nullOr types.bool;
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description = "If set to `true`, the mapping is treated as an action factory";
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};
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desc = lib.mkOption {
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default = null;
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type = types.nullOr types.str;
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description = "Description for the current keymapping";
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};
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};
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};
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# }}}
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# {{{ Tempest autocmd
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tempestAutocmd = types.submodule {
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options = {
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event = lib.mkOption {
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example = "InsertEnter";
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type = myTypes.oneOrMany types.str;
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description = "Events to bind autocmd to";
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};
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pattern = lib.mkOption {
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example = "Cargo.toml";
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type = myTypes.oneOrMany types.str;
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description = "File name patterns to run autocmd on";
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};
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group = lib.mkOption {
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example = "CargoCmpSource";
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type = types.str;
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description = "Name of the group to create and assign autocmd to";
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};
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callback = lib.mkOption {
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example.vim.opt.cmdheight = 1;
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type = types.oneOf [
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myTypes.tempestConfiguration
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myTypes.luaCode
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];
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description = ''
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Code to run when the respctive event occurs. Will pass the event
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object as context, which might be used for things like assigning
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a buffer number to local keymaps automatically.
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'';
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};
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};
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};
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# }}}
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# {{{ Tempest configuration
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tempestConfiguration = types.submodule {
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options = {
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vim = lib.mkOption {
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default = null;
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type = myTypes.luaValue;
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example.opt.cmdheight = 0;
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description = "Values to assign to the `vim` lua global object";
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};
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keys = lib.mkOption {
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default = null;
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type = myTypes.zeroOrMore myTypes.tempestKey;
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description = ''
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Arbitrary key mappings to create. The keymappings might
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automatically be buffer specific depending on the context. For
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instance, keymappings created inside autocmds will be local unless
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otherwise specified.
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'';
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};
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autocmds = lib.mkOption {
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default = null;
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type = myTypes.zeroOrMore myTypes.tempestAutocmd;
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description = "Arbitrary autocmds to create";
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};
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setup = lib.mkOption {
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default = null;
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type = types.nullOr (types.attrsOf myTypes.luaValue);
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example.lualine.opts.theme = "auto";
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description = ''
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Key-pair mappings for options to pass to .setup functions imported
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from different modules
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'';
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};
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callback = lib.mkOption {
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default = null;
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type = types.nullOr myTypes.luaCode;
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description = "Arbitrary code to run after everything else has been configured";
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};
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};
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};
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# }}}
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# {{{ Lazy module
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lazyModule = lib.fix (lazyModule: types.submodule ({ name ? null, ... }: {
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options = {
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package = lib.mkOption {
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type = types.oneOf [
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types.package
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types.str
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];
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description = "Package to configure the module around";
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example = "nvim-telescope/telescope.nvim";
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};
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name = lib.mkOption {
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default = name;
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type = types.nullOr types.str;
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description = "Custom name to use for the module";
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example = "lualine";
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};
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main = lib.mkOption {
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default = null;
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type = types.nullOr types.str;
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description = "The name of the lua entrypoint for the plugin (usually auto-detected)";
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example = "lualine";
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};
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version = lib.mkOption {
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default = null;
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type = types.nullOr types.str;
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description = "Pin the package to a certain version (useful for non-nix managed packages)";
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};
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tag = lib.mkOption {
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default = null;
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type = types.nullOr types.str;
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description = "Pin the package to a certain git tag (useful for non-nix managed packages)";
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};
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lazy = lib.mkOption {
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default = null;
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type = types.nullOr types.bool;
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description = "Specifies whether this module should be lazy-loaded";
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};
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dependencies.lua = lib.mkOption {
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default = [ ];
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type = types.listOf (types.either types.str lazyModule);
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description = "Lazy.nvim module dependencies";
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};
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dependencies.nix = lib.mkOption {
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default = [ ];
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type = types.listOf types.package;
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description = "Nix packages to give nvim access to";
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};
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cond = lib.mkOption {
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default = null;
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type = myTypes.luaCode;
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description = "Condition based on which to enable/disbale loading the package";
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};
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env.blacklist = lib.mkOption {
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default = [ ];
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type = types.listOf (types.enum [ "firenvim" "vscode" "neovide" ]);
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description = "Environments to blacklist plugin on";
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};
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setup = lib.mkOption {
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default = null;
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type = types.nullOr (types.oneOf [
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myTypes.tempestConfiguration
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myTypes.luaCode
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types.bool
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]);
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description = ''
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Lua function (or module) to use for configuring the package.
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Used instead of the canonically named `config` because said name has a special meaning in nix
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'';
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};
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event = lib.mkOption {
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default = null;
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type = myTypes.zeroOrMore types.str;
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description = "Event on which the module should be lazy loaded";
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};
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ft = lib.mkOption {
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default = null;
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type = myTypes.zeroOrMore types.str;
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description = "Filetypes on which the module should be lazy loaded";
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};
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cmd = lib.mkOption {
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default = null;
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type = myTypes.zeroOrMore types.str;
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description = "Comands on which to load this plugin";
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};
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init = lib.mkOption {
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default = null;
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type = myTypes.luaCode;
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description = "Lua function (or module) to run right away (even if the package is not yet loaded)";
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};
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passthrough = lib.mkOption {
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default = null;
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type = myTypes.luaCode;
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description = "Attach additional things to the lazy module";
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};
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opts = lib.mkOption {
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default = null;
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type = myTypes.luaValue;
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description = "Custom data to pass to the plugin .setup function";
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};
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keys = lib.mkOption {
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default = null;
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type = myTypes.zeroOrMore myTypes.lazyKey;
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description = "Keybinds to lazy-load the module on";
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};
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};
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}));
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# }}}
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};
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# }}}
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# {{{ Lua encoders
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# We provide a custom set of helpers for generating lua code for nix.enable
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#
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# An encoder is a function from some nix value to a string containing lua code.
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# This object provides combinators for writing such encoders.
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luaEncoders = {
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# {{{ "Raw" helpers
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mkRawLuaObject = chunks:
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''
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{
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${lib.concatStringsSep "," (lib.filter (s: s != "") chunks)}
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}
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'';
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# }}}
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# {{{ General helpers
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identity = given: given;
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# `const` is mostly useful together with `bind`. See the lua encoder for
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# lazy modules for example usage.
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const = code: _: code;
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# Conceptually, this is the monadic bind operation for encoders.
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# This implementation is isomoprhic to that of the reader monad in haskell.
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bind = encoder: given: encoder given given;
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# This is probably the most useful combinnator defined in this entire object.
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# Most of the combinators in the other categories are based on this.
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conditional = predicate: caseTrue: caseFalse:
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luaEncoders.bind (given: if predicate given then caseTrue else caseFalse);
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# This is simply left-composition of functions
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map = f: encoder: given: encoder (f given);
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# This is simply right-composition of functions
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postmap = f: encoder: given: f (encoder given);
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# This is mostly useful for debugging
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trace = message: luaEncoders.map (f: lib.traceSeq message (lib.traceVal f));
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fail = mkMessage: v: builtins.throw (mkMessage v);
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# }}}
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# {{{ Base types
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string = given: ''"${lib.escape ["\"" "\\"] (toString given)}"'';
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bool = bool: if bool then "true" else "false";
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number = toString;
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nil = _: "nil";
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stringOr = luaEncoders.conditional lib.isString luaEncoders.string;
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boolOr = luaEncoders.conditional lib.isBool luaEncoders.bool;
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numberOr = luaEncoders.conditional (e: lib.isFloat e || lib.isInt e) luaEncoders.number;
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nullOr = luaEncoders.conditional (e: e == null) luaEncoders.nil;
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# We pipe a combinator which always fail through a bunch of
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# `(thing)or : encoder -> encoder` functions, building up a combinator which
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# can handle more and more kinds of values, until we eventually build up
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# something that should be able to handle everything we throw at it.
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anything = lib.pipe (luaEncoders.fail (v: "Cannot figure out how to encode value ${builtins.toJSON v}")) [
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(luaEncoders.attrsetOfOr luaEncoders.anything)
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(luaEncoders.listOfOr luaEncoders.anything)
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luaEncoders.nullOr
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luaEncoders.boolOr
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luaEncoders.numberOr
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luaEncoders.stringOr
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luaEncoders.luaCodeOr # Lua code expressions have priority over attrsets
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];
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# }}}
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# {{{ Lua code
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# Tagged lua code can be combined with other combinators without worrying
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# about conflicts regarding how strings are interpreted.
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luaCodeOr =
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luaEncoders.conditional (e: lib.isAttrs e && (e.__luaEncoderTag or null) == "lua")
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(obj: obj.value);
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# This is the most rudimentary (and currently only) way of handling paths.
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luaImportOr = tag:
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luaEncoders.conditional lib.isPath
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(path: "dofile(${luaEncoders.string path}).${tag}");
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# Accepts both tagged and untagged strings of lua code.
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luaString = luaEncoders.luaCodeOr luaEncoders.identity;
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# This simply combines the above combinators into one.
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luaCode = tag: luaEncoders.luaImportOr tag luaEncoders.luaString;
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# }}}
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# {{{ Lists
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listOf = encoder: list:
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luaEncoders.mkRawLuaObject (lib.lists.map encoder list);
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listOfOr = encoder:
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luaEncoders.conditional
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lib.isList
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(luaEncoders.listOf encoder);
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# Returns nil when given empty lists
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tryNonemptyList = encoder: luaEncoders.conditional
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(l: l == [ ])
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luaEncoders.nil
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(luaEncoders.listOf encoder);
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oneOrMany = encoder: luaEncoders.listOfOr encoder encoder;
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# Can encode:
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# - zero values as nil
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# - one value as itself
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# - multiple values as a list
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zeroOrMany = encoder: luaEncoders.nullOr (luaEncoders.oneOrMany encoder);
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# Coerces non list values to lists of one element.
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oneOrManyAsList = encoder: luaEncoders.map
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(given: if lib.isList given then given else [ given ])
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(luaEncoders.listOf encoder);
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# Coerces lists of one element to said element.
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listAsOneOrMany = encoder:
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luaEncoders.map
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(l: if lib.length l == 1 then lib.head l else l)
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(luaEncoders.oneOrMany encoder);
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# }}}
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# {{{ Attrsets
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attrsetOf = encoder: object:
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luaEncoders.mkRawLuaObject (lib.mapAttrsToList
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(name: value:
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let result = encoder value;
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in
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lib.optionalString (result != "nil")
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"${name} = ${result}"
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)
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object
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);
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attrsetOfOr = of: luaEncoders.conditional lib.isAttrs (luaEncoders.attrsetOf of);
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# This is the most general combinator provided in this section.
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#
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# We accept:
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# - a `noNils` flag which will automatically remove any nil properties
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# - order of props that should be interpreted as list elements
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# - spec of props that should be interpreted as list elements
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# - record of props that should be interpreted as attribute props
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attrset = noNils: listOrder: spec: attrset:
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let
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shouldKeep = given:
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if noNils then
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given != "nil"
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else
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true;
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listChunks = lib.lists.map
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(attr:
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let result = spec.${attr} (attrset.${attr} or null);
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in
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lib.optionalString (shouldKeep result) result
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)
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listOrder;
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objectChunks = lib.mapAttrsToList
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(attr: encoder:
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let result = encoder (attrset.${attr} or null);
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in
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lib.optionalString (!(lib.elem attr listOrder) && shouldKeep result)
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"${attr} = ${result}"
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)
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spec;
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in
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luaEncoders.mkRawLuaObject (listChunks ++ objectChunks);
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# }}}
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};
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e = luaEncoders;
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# }}}
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# {{{ Helpers
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# Format and write a lua file to disk
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writeLuaFile = path: name: text:
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let
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directory = "lua/${path}";
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destination = "${directory}/${name}.lua";
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unformatted = pkgs.writeText "raw-lua-${name}" text;
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in
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pkgs.runCommand "formatted-lua-${name}" { } ''
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mkdir -p $out/${directory}
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cp --no-preserve=mode ${unformatted} $out/${destination}
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${lib.getExe pkgs.stylua} --config-path ${cfg.styluaConfig} $out/${destination}
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'';
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# }}}
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in
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{
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# {{{ Option declaration
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options.satellite.neovim = {
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lazy = lib.mkOption {
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default = { };
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description = "Record of plugins to install using lazy.nvim";
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type = types.attrsOf myTypes.lazyModule;
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};
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# {{{ Generated
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generated = {
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lazy = lib.mkOption {
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type = types.attrsOf (types.submodule {
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options = {
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raw = lib.mkOption {
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type = types.lines;
|
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description = "The lua script generated using the other options";
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||
};
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module = lib.mkOption {
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||
type = types.package;
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description = "The lua script generated using the other options";
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||
};
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};
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});
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description = "Attrset containing every module generated from the lazy configuration";
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||
};
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all = lib.mkOption {
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default = { };
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type = types.package;
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description = "Derivation building all the given nix modules";
|
||
};
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dependencies = lib.mkOption {
|
||
default = [ ];
|
||
type = types.listOf types.package;
|
||
description = "List of packages to give neovim access to";
|
||
};
|
||
};
|
||
# }}}
|
||
# {{{ Lua generation lib
|
||
lib = {
|
||
# {{{ Basic lua generators
|
||
lua = lib.mkOption {
|
||
default = value: { inherit value; __luaEncoderTag = "lua"; };
|
||
type = types.functionTo myTypes.luaLiteral;
|
||
description = "include some raw lua code inside module configuration";
|
||
};
|
||
|
||
import = lib.mkOption {
|
||
default = path: tag: cfg.lib.lua "dofile(${e.string path}).${tag}";
|
||
type = types.functionTo (types.functionTo myTypes.luaLiteral);
|
||
description = "import some identifier from some module";
|
||
};
|
||
# }}}
|
||
# {{{ Encoders
|
||
encode = lib.mkOption {
|
||
default = luaEncoders.anything;
|
||
type = types.functionTo types.str;
|
||
description = "Encode a nix value to a lua string";
|
||
};
|
||
|
||
encodeTempestConfiguration = lib.mkOption {
|
||
default = given:
|
||
e.attrset true [ ]
|
||
{
|
||
vim = e.anything;
|
||
callback = e.nullOr e.luaString;
|
||
setup = e.nullOr (e.attrsetOf e.anything);
|
||
keys = e.zeroOrMany (e.attrset true [ ] {
|
||
mapping = e.string;
|
||
action = e.luaCodeOr e.string;
|
||
desc = e.nullOr e.string;
|
||
expr = e.nullOr e.bool;
|
||
mode = e.nullOr e.string;
|
||
silent = e.nullOr e.bool;
|
||
buffer = e.nullOr (e.luaCodeOr (e.boolOr e.number));
|
||
});
|
||
autocmds = e.zeroOrMany (e.attrset true [ ] {
|
||
event = e.oneOrMany e.string;
|
||
pattern = e.oneOrMany e.string;
|
||
group = e.string;
|
||
callback = e.conditional lib.isAttrs
|
||
cfg.lib.encodeTempestConfiguration
|
||
e.luaString;
|
||
});
|
||
}
|
||
given;
|
||
type = types.functionTo types.str;
|
||
description = "Generate a lua object for passing to my own lua runtime for configuration";
|
||
};
|
||
# }}}
|
||
# {{{ Thunks
|
||
# This version of `nlib.thunk` is required in ceratain cases because
|
||
# of issues with `types.oneOf [types.submodule ..., types.submodule]` not
|
||
# working as intended atm.
|
||
thunkString = lib.mkOption {
|
||
default = given: /* lua */ ''
|
||
function() ${e.luaString given} end
|
||
'';
|
||
type = types.functionTo types.str;
|
||
description = "Wrap a lua expression into a lua function as a string";
|
||
};
|
||
|
||
thunk = lib.mkOption {
|
||
default = given: cfg.lib.lua (cfg.lib.thunkString given);
|
||
type = types.functionTo myTypes.luaLiteral;
|
||
description = "Wrap a lua expression into a lua function";
|
||
};
|
||
|
||
|
||
contextThunk = lib.mkOption {
|
||
default = given: cfg.lib.lua /* lua */ ''
|
||
function(context) ${e.luaString given} end
|
||
'';
|
||
type = types.functionTo myTypes.luaLiteral;
|
||
description = "Wrap a lua expression into a lua function taking an argument named `context`";
|
||
};
|
||
# }}}
|
||
# {{{ Language server on attach
|
||
languageServerOnAttach = lib.mkOption {
|
||
default = given: cfg.lib.lua /* lua */ ''
|
||
function(client, bufnr)
|
||
require(${e.string cfg.runtime.tempest}).configure(${cfg.lib.encodeTempestConfiguration given},
|
||
{ client = client; bufnr = bufnr; })
|
||
|
||
require(${e.string cfg.runtime.languageServerOnAttach}).on_attach(client, bufnr)
|
||
end
|
||
'';
|
||
type = types.functionTo myTypes.luaCode;
|
||
description = "Attach a language server and run some additional code";
|
||
};
|
||
# }}}
|
||
};
|
||
# }}}
|
||
# {{{ Neovim runtime module paths
|
||
runtime = {
|
||
env = lib.mkOption {
|
||
type = types.str;
|
||
example = "my.helpers.env";
|
||
description = "Module to import env flags from";
|
||
};
|
||
|
||
tempest = lib.mkOption {
|
||
type = types.str;
|
||
example = "my.runtime.tempest";
|
||
description = "Module to import the tempest runtime from";
|
||
};
|
||
|
||
languageServerOnAttach = lib.mkOption {
|
||
type = types.str;
|
||
example = "my.runtime.lspconfig";
|
||
description = "Module to import langauge server .on_attach function from";
|
||
};
|
||
};
|
||
# }}}
|
||
|
||
styluaConfig = lib.mkOption {
|
||
type = types.path;
|
||
description = "Config to use for formatting lua modules";
|
||
};
|
||
};
|
||
# }}}
|
||
# {{{ Config generation
|
||
# {{{ Lazy module generation
|
||
config.satellite.neovim.generated.lazy =
|
||
let
|
||
# {{{ Lazy key encoder
|
||
lazyKeyEncoder =
|
||
e.stringOr (e.attrset true [ "mapping" "action" ] {
|
||
mapping = e.string;
|
||
action = e.nullOr (e.luaCodeOr e.string);
|
||
mode = e.nullOr
|
||
(e.map
|
||
lib.strings.stringToCharacters
|
||
(e.listAsOneOrMany e.string));
|
||
desc = e.nullOr e.string;
|
||
ft = e.zeroOrMany e.string;
|
||
});
|
||
# }}}
|
||
# {{{ Lazy spec encoder
|
||
lazyObjectEncoder = e.bind
|
||
(opts: e.attrset true [ "package" ]
|
||
{
|
||
package = e.string;
|
||
name = e.nullOr e.string;
|
||
main = e.nullOr e.string;
|
||
tag = e.nullOr e.string;
|
||
version = e.nullOr e.string;
|
||
dependencies = e.map (d: d.lua) (e.tryNonemptyList (e.stringOr lazyObjectEncoder));
|
||
lazy = e.nullOr e.bool;
|
||
cond =
|
||
if opts.env.blacklist != [ ] then
|
||
assert lib.asserts.assertMsg (opts.cond == null)
|
||
"env.blacklist overrides plugin condition";
|
||
e.const /* lua */ ''
|
||
require(${e.string cfg.runtime.env}).blacklist(${e.listOf e.string opts.env.blacklist})
|
||
''
|
||
else
|
||
e.nullOr (e.luaCode "cond");
|
||
|
||
config = _:
|
||
let
|
||
wrap = given: /* lua */''
|
||
function(lazy, opts)
|
||
require(${e.string cfg.runtime.tempest}).configure(${given},
|
||
{ lazy = lazy; opts = opts; })
|
||
end
|
||
'';
|
||
in
|
||
e.conditional lib.isAttrs
|
||
(e.postmap wrap cfg.lib.encodeTempestConfiguration)
|
||
(e.nullOr (e.boolOr (e.luaCode "config")))
|
||
opts.setup;
|
||
init = e.nullOr (e.luaCode "init");
|
||
event = e.zeroOrMany e.string;
|
||
cmd = e.zeroOrMany e.string;
|
||
ft = e.zeroOrMany e.string;
|
||
keys = e.nullOr (e.oneOrManyAsList lazyKeyEncoder);
|
||
passthrough = e.anything;
|
||
opts = e.anything;
|
||
});
|
||
# }}}
|
||
|
||
makeLazyScript = opts: ''
|
||
-- ❄️ This file was generated using nix ^~^
|
||
return ${lazyObjectEncoder opts}
|
||
'';
|
||
in
|
||
lib.attrsets.mapAttrs
|
||
(name: opts: rec {
|
||
raw = makeLazyScript opts;
|
||
module = writeLuaFile "nix/plugins" name raw;
|
||
})
|
||
cfg.lazy;
|
||
|
||
config.satellite.neovim.generated.all =
|
||
pkgs.symlinkJoin {
|
||
name = "lazy-nvim-modules";
|
||
paths = lib.attrsets.mapAttrsToList (_: m: m.module) cfg.generated.lazy;
|
||
};
|
||
# }}}
|
||
|
||
config.satellite.neovim.generated.dependencies =
|
||
lib.pipe cfg.lazy
|
||
[
|
||
(lib.attrsets.mapAttrsToList (_: m: m.dependencies.nix))
|
||
lib.lists.flatten
|
||
];
|
||
# }}}
|
||
}
|
||
|
||
|