plugins/vim-slime: add plugin + test

plugins/default.nix

@@ -45,6 +45,7 @@
     ./languages/treesitter/treesitter-refactor.nix
     ./languages/treesitter/ts-autotag.nix
     ./languages/typst/typst-vim.nix
+    ./languages/vim-slime.nix
     ./languages/vimtex.nix
     ./languages/zig.nix
 

plugins/languages/vim-slime.nix

@@ -0,0 +1,116 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}: let
+  cfg = config.plugins.vim-slime;
+  helpers = import ../helpers.nix {inherit lib;};
+in
+  with lib; {
+    options.plugins.vim-slime = {
+      enable = mkEnableOption "vim-slime";
+
+      package = helpers.mkPackageOption "vim-slime" pkgs.vimPlugins.vim-slime;
+
+      target =
+        helpers.defaultNullOpts.mkEnum
+        [
+          "dtach"
+          "kitty"
+          "neovim"
+          "screen"
+          "tmux"
+          "vimterminal"
+          "wezterm"
+          "whimrepl"
+          "x11"
+          "zellij"
+        ]
+        "screen"
+        "Which backend vim-slime should use.";
+
+      vimterminalCmd = helpers.mkNullOrOption types.str "The vim terminal command to execute.";
+
+      noMappings = helpers.defaultNullOpts.mkBool false "Whether to disable the default mappings.";
+
+      pasteFile = helpers.defaultNullOpts.mkStr "$HOME/.slime_paste" ''
+        Required to transfer data from vim to GNU screen or tmux.
+        Setting this explicitly can work around some occasional portability issues.
+        whimrepl does not require or support this setting.
+      '';
+
+      preserveCurpos = helpers.defaultNullOpts.mkBool true ''
+        Whether to preserve cursor position when sending a line or paragraph.
+      '';
+
+      defaultConfig =
+        helpers.defaultNullOpts.mkNullable
+        (with types; attrsOf (either str helpers.rawType))
+        "null"
+        ''
+          Pre-filled prompt answer.
+
+          Examples:
+            - `tmux`:
+              ```
+                {
+                  socket_name = "default";
+                  target_pane = "{last}";
+                }
+              ```
+            - `zellij`:
+              ```
+                {
+                  session_id = "current";
+                  relative_pane = "right";
+                }
+              ```
+        '';
+
+      dontAskDefault = helpers.defaultNullOpts.mkBool false ''
+        Whether to bypass the prompt and use the specified default configuration options.
+      '';
+
+      bracketedPaste = helpers.defaultNullOpts.mkBool false ''
+        Sometimes REPL are too smart for their own good, e.g. autocompleting a bracket that should
+        not be autocompleted when pasting code from a file.
+        In this case it can be useful to rely on bracketed-paste
+        (https://cirw.in/blog/bracketed-paste).
+        Luckily, tmux knows how to handle that. See tmux's manual.
+      '';
+
+      extraConfig = mkOption {
+        type = types.attrs;
+        default = {};
+        description = ''
+          The configuration options for vim-slime without the 'slime_' prefix.
+          Example: To set 'slime_foobar' to 1, write
+          extraConfig = {
+            foobar = true;
+          };
+        '';
+      };
+    };
+
+    config = mkIf cfg.enable {
+      extraPlugins = [cfg.package];
+
+      globals =
+        mapAttrs'
+        (name: nameValuePair ("slime_" + name))
+        (
+          {
+            inherit (cfg) target;
+            vimterminal_cmd = cfg.vimterminalCmd;
+            no_mappings = cfg.noMappings;
+            paste_file = cfg.pasteFile;
+            preserve_curpos = cfg.preserveCurpos;
+            default_config = cfg.defaultConfig;
+            dont_ask_default = cfg.dontAskDefault;
+            bracketed_paste = cfg.bracketedPaste;
+          }
+          // cfg.extraConfig
+        );
+    };
+  }

tests/test-sources/plugins/languages/vim-slime.nix

@@ -0,0 +1,23 @@
+{
+  empty = {
+    plugins.vim-slime.enable = true;
+  };
+
+  example = {
+    plugins.vim-slime = {
+      enable = true;
+
+      target = "screen";
+      vimterminalCmd = null;
+      noMappings = false;
+      pasteFile = "$HOME/.slime_paste";
+      preserveCurpos = true;
+      defaultConfig = {
+        socket_name = "default";
+        target_pane = "{last}";
+      };
+      dontAskDefault = false;
+      bracketedPaste = false;
+    };
+  };
+}