startify: init plugin

flake.nix

@@ -51,6 +51,10 @@
             plugins.undotree.enable = true;
             plugins.gitgutter.enable = true;
             plugins.commentary.enable = true;
+            plugins.startify = {
+              enable = true;
+              useUnicode = true;
+            };
 
             plugins.lsp = {
               enable = true;

plugins/default.nix

@@ -10,6 +10,7 @@
 
     ./utils/undotree.nix
     ./utils/commentary.nix
+    ./utils/startify.nix
 
     ./languages/treesitter.nix
 

plugins/helpers.nix

@@ -53,9 +53,48 @@ rec {
     }) normalized);
 
   # Creates an option with a nullable type that defaults to null.
-  nullOrOption = type: desc: lib.mkOption {
+  mkNullOrOption = type: desc: lib.mkOption {
     type = lib.types.nullOr type;
     default = null;
     description = desc;
   };
+
+  mkPlugin = { config, lib, ... }: {
+    name,
+    description,
+    extraPlugins ? [],
+    options ? {},
+    ...
+  }: let
+    cfg = config.programs.nixvim.plugins.${name};
+    # TODO support nested options!
+    pluginOptions = mapAttrs (k: v: v.option) options;
+    globals = mapAttrs' (name: opt: {
+      name = opt.global;
+      value = if cfg.${name} != null then opt.value cfg.${name} else null;
+    }) options;
+  in {
+    options.programs.nixvim.plugins.${name} = {
+      enable = mkEnableOption description;
+    } // pluginOptions;
+
+    config.programs.nixvim = mkIf cfg.enable {
+      inherit extraPlugins globals;
+    };
+  };
+
+  globalVal = val: if builtins.isBool val then
+    (if val == false then 0 else 1)
+  else val;
+
+  mkDefaultOpt = { type, global, description ? null, example ? null, value ? v: toLuaObject (globalVal v), ... }: {
+    option = mkOption {
+      type = types.nullOr type;
+      default = null;
+      description = description;
+      example = example;
+    };
+
+    inherit value global;
+  };
 }

plugins/utils/startify.nix

@@ -0,0 +1,218 @@
+{ pkgs, lib, ... }@args:
+let
+  helpers = import ../helpers.nix { lib = lib; };
+in with lib; with helpers;
+mkPlugin args {
+  name = "startify";
+  description = "Enable startify";
+  extraPlugins = [ pkgs.vimPlugins.vim-startify ];
+
+  options = {
+    sessionDir = mkDefaultOpt {
+      description = "Directory to save/load session";
+      global = "startify_session_dir";
+      type = types.str;
+    };
+
+    lists = mkDefaultOpt {
+      description = "Startify display lists. If it's a string, it'll be interpreted as literal lua code";
+      global = "startify_lists";
+      type = types.listOf (types.oneOf [types.submodule {
+        type = mkOption {
+          type = types.str;
+          description = "The type of the list";
+        };
+        # TODO the header should be a literal lua string!
+        header = mkOption {
+          type = types.nullOr (types.listOf types.str);
+          description = "Optional header. It's a list of strings";
+          default = null;
+        };
+        indices = mkOption {
+          type = types.nullOr (types.listOf types.str);
+          description = "Optional indices for the current list";
+          default = null;
+        };
+      } types.str]);
+
+      value = val: let
+        list = map (v: if builtins.isAttrs v then toLuaObject v else v) val;
+      in "{" + (concatStringsSep "," list) + "}";
+    };
+
+    bookmarks = mkDefaultOpt {
+      description = "A list of files or directories to bookmark.";
+      global = "startify_bookmarks";
+      type = with types; listOf (oneOf [str (attrsOf str)]);
+    };
+
+    commands = mkDefaultOpt {
+      description = "A list of commands to execute on selection";
+      global = "startify_commands";
+      type = with types; listOf (oneOf [ str (listOf str) attrs ]);
+    };
+
+    filesNumber = mkDefaultOpt {
+      description = "The number of files to list";
+      global = "startify_files_number";
+      type = types.int;
+    };
+    
+    updateOldFiles = mkDefaultOpt {
+      description = "Update v:oldfiles on-the-fly, so that :Startify is always up-to-date";
+      global = "startify_update_oldfiles";
+      type = types.bool;
+    };
+
+    sessionAutoload = mkDefaultOpt {
+      description = "Load Session.vim";
+      global = "startify_session_autoload";
+      type = types.bool;
+    };
+
+    sessionBeforeSave = mkDefaultOpt {
+      description = "Commands to be executed before saving a session";
+      global = "startify_session_before_save";
+      type = types.listOf types.str;
+    };
+
+    sessionPersistence = mkDefaultOpt {
+      description = "Automatically update sessions";
+      global = "startify_session_persistence";
+      type = types.bool;
+    };
+
+    sessionDeleteBuffers = mkDefaultOpt {
+      description = "Delete all buffers when loading or closing a session";
+      global = "startify_session_delete_buffers";
+      type = types.bool;
+    };
+
+    changeToDir = mkDefaultOpt {
+      description = "When opening a file or bookmark, change to its directory";
+      global = "startify_change_to_dir";
+      type = types.bool;
+    };
+
+    changeToVcsRoot = mkDefaultOpt {
+      description = "When opening a file or bookmark, change to the root directory of the VCS";
+      global = "startify_change_to_vcs_root";
+      type = types.bool;
+    };
+
+    changeCmd = mkDefaultOpt {
+      description = "The default command for switching directories";
+      global = "startify_change_cmd";
+      type = types.enum [ "cd" "lcd" "tcd" ];
+    };
+
+    skipList = mkDefaultOpt {
+      description = "A list of regexes that is used to filter recently used files";
+      global = "startify_skiplist";
+      type = types.listOf types.str;
+    };
+
+    useUnicode = mkDefaultOpt {
+      description = "Use unicode box drawing characters for the fortune header";
+      global = "startify_fortune_use_unicode";
+      type = types.bool;
+    };
+
+    paddingLeft = mkDefaultOpt {
+      description = "Number of spaces used for left padding";
+      global = "startify_padding_left";
+      type = types.int;
+    };
+
+    skipListServer = mkDefaultOpt {
+      description = "Do not create the startify buffer if this is a Vim server instance with a name contained in this list";
+      global = "startify_skiplist_server";
+      type = types.listOf types.str;
+    };
+
+    enableSpecial = mkDefaultOpt {
+      description = "Show <empty buffer> and <quit>";
+      global = "startify_enable_special";
+      type = types.bool;
+    };
+
+    enableUnsafe = mkDefaultOpt {
+      description = "Improves start time but reduces accuracy of the file list";
+      global = "startify_enable_unsafe";
+      type = types.bool;
+    };
+
+    sessionRemoveLines = mkDefaultOpt {
+      description = "Lines matching any of the patterns in this list will be removed from the session file";
+      global = "startify_session_remove_lines";
+      type = types.listOf types.str;
+    };
+
+    sessionSaveVars = mkDefaultOpt {
+      description = "List of variables for Startify to save into the session file";
+      global = "startify_session_savevars";
+      type = types.listOf types.str;
+    };
+
+    sessionSaveCmds = mkDefaultOpt {
+      description = "List of cmdline commands to run when loading the session";
+      global = "startify_session_savecmds";
+      type = types.listOf types.str;
+    };
+
+    sessionNumber = mkDefaultOpt {
+      description = "Maximum number of sessions to display";
+      global = "startify_session_number";
+      type = types.listOf types.str;
+    };
+
+    sessionSort = mkDefaultOpt {
+      description = "Sort sessions by modification time rather than alphabetically";
+      global = "startify_session_sort";
+      type = types.bool;
+    };
+
+    customIndices = mkDefaultOpt {
+      description = "Use this list as indices instead of increasing numbers";
+      global = "startify_custom_indices";
+      type = types.listOf types.str;
+    };
+
+    customHeader = mkDefaultOpt {
+      description = "Define your own header";
+      global = "startify_custom_headers";
+      type = types.oneOf [ types.str (types.listOf types.str) ];
+    };
+
+    customQuotes = mkDefaultOpt {
+      description = "Own quotes for the cowsay header";
+      global = "startify_custom_header_quotes";
+      # TODO this should also support funcrefs!
+      type = types.listOf (types.listOf types.str);
+    };
+
+    customFooter = mkDefaultOpt {
+      description = "Custom footer";
+      global = "startify_custom_footer";
+      type = types.str;
+    };
+
+    disableAtVimEnter = mkDefaultOpt {
+      description = "Don't run Startify at Vim startup";
+      global = "startify_disable_at_vimenter";
+      type = types.bool;
+    };
+
+    relativePath = mkDefaultOpt {
+      description = "If the file is in or below the current working directory, use a relative path";
+      global = "startify_relative_path";
+      type = types.bool;
+    };
+
+    useEnv = mkDefaultOpt {
+      description = "Show environment variables in path, if their name is shorter than their value";
+      global = "startify_use_env";
+      type = types.bool;
+    };
+  };
+}

plugins/utils/undotree.nix

@@ -11,7 +11,7 @@ in {
       windowLayout = mkOption {
         type = types.nullOr types.int;
         default = null;
-        description = "Window layour for undotree. Check https://github.com/mbbill/undotree/blob/master/plugin/undotree.vim#L29 for reference";
+        description = "Window layout for undotree. Check https://github.com/mbbill/undotree/blob/master/plugin/undotree.vim#L29 for reference";
       };
 
       shortIndicators = mkOption {

test.sh

@@ -5,4 +5,4 @@ set -e
 sudo nixos-container destroy nvim-test
 sudo nixos-container create nvim-test --flake .
 
-.tmp/sw/bin/nvim -u .tmp/etc/xdg/nvim/sysinit.vim .tmp/etc/xdg/nvim/sysinit.vim
+.tmp/sw/bin/nvim -u .tmp/etc/xdg/nvim/sysinit.vim $@