cue: Added cue-lang support

overlays/vim-cue.nix

@@ -0,0 +1,17 @@
+# Cue filetype plugin for Vim
+#
+# Provide an overlay to obtain vim-cue from upstream rather than nixpkgs
+
+final: prev: {
+  vimPlugins = prev.vimPlugins // {
+    vim-cue = prev.vimUtils.buildVimPlugin {
+      name = "vim-cue";
+      src = prev.fetchFromGitHub {
+        owner = "jjo";
+        repo = "vim-cue";
+        rev = "9e8bef1198817b6bae1143fecd965403d65d2466";
+        sha256 = "sha256-VEJh3u2s4Ccc/JQa383FDcurCgUiNFlEuqXXhO0nB2c=";
+      };
+    };
+  };
+}

profiles/iohk.nix

@@ -30,6 +30,7 @@
     systemPackages = with pkgs; [
       awscli            # Unified tool to manage your AWS services
       buildkite-agent   # Buildkite for IOHK
+      cue               # A data constraint language
       docker            # Pack, ship and run any application as a lightweight container
       docker-compose    # Multi-container orchestration for Docker
       freerdp           # A Remote Desktop Protocol Client, xfreerdp

profiles/vim.nix

@@ -1,4 +1,4 @@
-with import <nixpkgs> {};
+with import <nixpkgs> { overlays = [ (import ../overlays/vim-cue.nix) ]; };
 
 vim_configurable.customize {
   name = "vim";   # Specifies the vim binary name.
@@ -152,6 +152,15 @@ vim_configurable.customize {
     endfunction
     autocmd BufNewFile,BufFilePre,BufRead *.nix :call NixSettings()
 
+    " Settings for my Cue environment:
+    function! CueSettings()
+        set tabstop=2
+        set shiftwidth=2
+        set textwidth=79
+        let g:cue_fmt_on_save = 1
+    endfunction
+    autocmd BufNewFile,BufFilePre,BufRead *.cue :call CueSettings()
+
     " Settings for my Crystal environment:
     function! CrystalSettings()
         set tabstop=2
@@ -254,6 +263,7 @@ vim_configurable.customize {
       tabular               # Script for text filtering and alignment
       vim-airline-themes    # Collection of themes for airline
       vim-colorschemes      # Collection of ViM colour schemes
+      vim-cue               # Cue filetype plugin for Vim
       vim-nix               # Support for writing Nix expressions in vim
       vim-addon-nix         # Scripts assisting writing .nix files
       vim-polyglot          # A solid language pack for Vim