From 732866d6b67a85d77e020029909546e5e55e72d4 Mon Sep 17 00:00:00 2001
From: Daiderd Jordan <daiderd@gmail.com>
Date: Sun, 18 Dec 2016 13:52:03 +0100
Subject: [PATCH] add programs.vim module

---
 default.nix               |   1 +
 modules/programs/tmux.nix |  39 +++++++-------
 modules/programs/vim.nix  | 111 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 131 insertions(+), 20 deletions(-)
 create mode 100644 modules/programs/vim.nix

diff --git a/default.nix b/default.nix
index 44a1e17c..1736696e 100644
--- a/default.nix
+++ b/default.nix
@@ -26,6 +26,7 @@ let
         ./modules/services/nix-daemon.nix
         ./modules/programs/bash.nix
         ./modules/programs/tmux.nix
+        ./modules/programs/vim.nix
         ./modules/programs/zsh.nix
       ];
   };
diff --git a/modules/programs/tmux.nix b/modules/programs/tmux.nix
index 79abeb15..dc233fb0 100644
--- a/modules/programs/tmux.nix
+++ b/modules/programs/tmux.nix
@@ -38,7 +38,7 @@ in {
       type = types.str;
       default = "$SHELL";
       description = ''
-        Configure default login shell.
+        Configure default login shell for tmux.
       '';
     };
 
@@ -47,7 +47,7 @@ in {
       default = false;
       example = true;
       description = ''
-        Enable sensible configuration options.
+        Enable sensible configuration options for tmux.
       '';
     };
 
@@ -56,7 +56,7 @@ in {
       default = false;
       example = true;
       description = ''
-        Enable mouse support.
+        Enable mouse support for tmux.
       '';
     };
 
@@ -65,7 +65,7 @@ in {
       default = false;
       example = true;
       description = ''
-        Enable fzf keybindings for selecting sessions and panes.
+        Enable fzf keybindings for selecting tmux sessions and panes.
       '';
     };
 
@@ -74,32 +74,39 @@ in {
       default = false;
       example = true;
       description = ''
-        Enable vim style keybindings for copy mode, and navigation of panes.
+        Enable vim style keybindings for copy mode, and navigation of tmux panes.
       '';
     };
 
-    programs.tmux.tmuxConfig = mkOption {
-      type = types.lines;
-      default = "";
-    };
-
     programs.tmux.tmuxOptions = mkOption {
       internal = true;
       type = types.attrsOf (types.submodule text);
       default = {};
     };
 
+    programs.tmux.tmuxConfig = mkOption {
+      type = types.lines;
+      default = "";
+    };
+
   };
 
   config = mkIf cfg.enable {
 
+    environment.etc."tmux.conf".text = ''
+      ${tmuxOptions}
+      ${cfg.tmuxConfig}
+
+      source-file -q /etc/tmux.conf.local
+    '';
+
     programs.tmux.tmuxOptions.login-shell.text = if stdenv.isDarwin then ''
       set -g default-command "reattach-to-user-namespace ${cfg.loginShell}"
     '' else ''
       set -g default-command "${cfg.loginShell}"
     '';
 
-    programs.tmux.tmuxOptions.sensible.text = mkIf cfg.enableSensible (''
+    programs.tmux.tmuxOptions.sensible.text = mkIf cfg.enableSensible ''
       set -g default-terminal "screen-256color"
       setw -g aggressive-resize on
 
@@ -119,7 +126,7 @@ in {
 
       # set -g status-utf8 on
       # set -g utf8 on
-    '');
+    '';
 
     programs.tmux.tmuxOptions.mouse.text = mkIf cfg.enableMouse ''
       set -g mouse on
@@ -149,13 +156,5 @@ in {
       bind -t vi-copy y copy-pipe "reattach-to-user-namespace pbcopy"
     '');
 
-    environment.etc."tmux.conf".text = ''
-      ${tmuxOptions}
-
-      ${cfg.tmuxConfig}
-
-      source-file -q /etc/tmux.conf.local
-    '';
-
   };
 }
diff --git a/modules/programs/vim.nix b/modules/programs/vim.nix
new file mode 100644
index 00000000..115fa0f1
--- /dev/null
+++ b/modules/programs/vim.nix
@@ -0,0 +1,111 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  cfg = config.programs.vim;
+
+  vim = pkgs.vim_configurable.customize {
+    name = "vim";
+    vimrcConfig.customRC = config.environment.etc."vimrc".text;
+    vimrcConfig.vam.pluginDictionaries = cfg.plugins;
+  };
+
+  text = import ../system/write-text.nix {
+    inherit lib;
+    mkTextDerivation = name: text: pkgs.writeText "vim-options-${name}" text;
+  };
+
+  vimOptions = concatMapStringsSep "\n" (attr: attr.text) (attrValues cfg.vimOptions);
+
+in {
+  options = {
+
+    programs.vim.enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = ''
+        Whether to configure vim.
+      '';
+    };
+
+    programs.vim.enableSensible = mkOption {
+      type = types.bool;
+      default = false;
+      example = true;
+      description = ''
+        Enable sensible configuration options for vim.
+      '';
+    };
+
+    programs.vim.plugins = mkOption {
+      type = types.listOf types.attrs;
+      default = [];
+      example = [ { names = [ "surround" "vim-nix" ]; } ];
+      description = ''
+        VAM plugin dictionaries to use for vim_configurable.
+      '';
+    };
+
+    programs.vim.vimOptions = mkOption {
+      internal = true;
+      type = types.attrsOf (types.submodule text);
+      default = {};
+    };
+
+    programs.vim.vimConfig = mkOption {
+      type = types.lines;
+      default = "";
+      description = ''
+        Extra vimrcConfig to use for vim_configurable.
+      '';
+    };
+
+  };
+
+  config = mkIf cfg.enable {
+
+    environment.systemPackages =
+      [ # Include vim_configurable package.
+        vim
+      ];
+
+    environment.variables.EDITOR = "${vim}/bin/vim";
+
+    environment.etc."vimrc".text = ''
+      ${vimOptions}
+      ${cfg.vimConfig}
+
+      if filereadable('/etc/vimrc.local')
+        source /etc/vimrc.local
+      endif
+    '';
+
+    programs.vim.plugins = mkIf cfg.enableSensible [
+      { names = [ "fugitive" "surround" "vim-nix" ]; }
+    ];
+
+    programs.vim.vimOptions.sensible.text = mkIf cfg.enableSensible ''
+      set nocompatible
+      filetype plugin indent on
+      syntax on
+
+      set et sw=2 ts=2
+      set bs=indent,start
+
+      set hlsearch
+      nnoremap // :nohlsearch<CR>
+
+      set nowrap
+      set number
+
+      set list
+      set listchars=tab:»·,trail:·,extends:⟩,precedes:⟨
+      set fillchars+=vert:\ ,stl:\ ,stlnc:\ 
+
+      set lazyredraw
+    '';
+
+  };
+}