Merge pull request #510 from horriblename/feat-blink

completion/blink.cmp: add

docs/release-notes/rl-0.8.md

@@ -47,6 +47,12 @@
 
 - Add Haskell support under `vim.languages.haskell` using [haskell-tools.nvim].
 
+[horriblename](https://github.com/horriblename):
+
+[blink.cmp]: https://github.com/saghen/blink.cmp
+
+- Add [blink.cmp] support
+
 [diniamo](https://github.com/diniamo):
 
 - Add Odin support under `vim.languages.odin`.

flake.nix

@@ -294,6 +294,16 @@
       flake = false;
     };
 
+    plugin-blink-cmp = {
+      url = "github:saghen/blink.cmp";
+      flake = false;
+    };
+
+    plugin-blink-compat = {
+      url = "github:saghen/blink.compat";
+      flake = false;
+    };
+
     plugin-nvim-cmp = {
       url = "github:hrsh7th/nvim-cmp";
       flake = false;

flake/legacyPackages.nix

@@ -9,10 +9,14 @@
       overlays = [
         inputs.self.overlays.default
 
-        (_: _: {
+        (final: _: {
           # Build nil from source to get most recent
           # features as they are added.
           nil = inputs'.nil.packages.default;
+          blink-cmp = final.callPackage ./legacyPackages/blink-cmp.nix {
+            src = inputs.plugin-blink-cmp;
+            version = inputs.plugin-blink-cmp.shortRev or inputs.plugin-blink-cmp.shortDirtyRev or "dirty";
+          };
         })
       ];
     };

flake/legacyPackages/blink-cmp.nix

@@ -0,0 +1,38 @@
+{
+  rustPlatform,
+  hostPlatform,
+  vimUtils,
+  git,
+  src,
+  version,
+}: let
+  blink-fuzzy-lib = rustPlatform.buildRustPackage {
+    pname = "blink-fuzzy-lib";
+    inherit version src;
+
+    env = {
+      # TODO: remove this if plugin stops using nightly rust
+      RUSTC_BOOTSTRAP = true;
+    };
+    nativeBuildInputs = [git];
+    cargoLock = {
+      lockFile = "${src}/Cargo.lock";
+      allowBuiltinFetchGit = true;
+    };
+  };
+  libExt =
+    if hostPlatform.isDarwin
+    then "dylib"
+    else "so";
+in
+  vimUtils.buildVimPlugin {
+    pname = "blink-cmp";
+    inherit version src;
+
+    # blink references a repro.lua which is placed outside the lua/ directory
+    doCheck = false;
+    preInstall = ''
+      mkdir -p target/release
+      ln -s ${blink-fuzzy-lib}/lib/libblink_cmp_fuzzy.${libExt} target/release/libblink_cmp_fuzzy.${libExt}
+    '';
+  }

flake/overlays.nix

@@ -10,10 +10,10 @@
   nixConfig = import ../configuration.nix false;
   maximalConfig = import ../configuration.nix true;
 in {
-  flake.overlays.default = _final: prev: {
+  flake.overlays.default = final: _prev: {
     inherit neovimConfiguration;
-    neovim-nix = buildPkg prev [nixConfig];
-    neovim-maximal = buildPkg prev [maximalConfig];
+    neovim-nix = buildPkg final [nixConfig];
+    neovim-maximal = buildPkg final [maximalConfig];
     devPkg = buildPkg pkgs [nixConfig {config.vim.languages.html.enable = pkgs.lib.mkForce true;}];
   };
 }

modules/plugins/completion/blink-cmp/blink-cmp.nix

@@ -0,0 +1,120 @@
+{lib, ...}: let
+  inherit (lib.options) mkEnableOption mkOption literalMD;
+  inherit (lib.types) listOf str either attrsOf submodule enum anything int nullOr;
+  inherit (lib.generators) mkLuaInline;
+  inherit (lib.nvim.types) mkPluginSetupOption luaInline;
+  inherit (lib.nvim.binds) mkMappingOption;
+  inherit (lib.nvim.config) mkBool;
+
+  keymapType = submodule {
+    freeformType = attrsOf (listOf (either str luaInline));
+    options = {
+      preset = mkOption {
+        type = enum ["default" "none" "super-tab" "enter"];
+        default = "none";
+        description = "keymap presets";
+      };
+    };
+  };
+
+  providerType = submodule {
+    freeformType = anything;
+    options = {
+      module = mkOption {
+        type = str;
+        description = "module of the provider";
+      };
+    };
+  };
+in {
+  options.vim.autocomplete.blink-cmp = {
+    enable = mkEnableOption "blink.cmp";
+    setupOpts = mkPluginSetupOption "blink.cmp" {
+      sources = {
+        default = mkOption {
+          type = listOf str;
+          default = ["lsp" "path" "snippets" "buffer"];
+          description = "Default list of sources to enable for completion.";
+        };
+
+        cmdline = mkOption {
+          type = nullOr (listOf str);
+          default = [];
+          description = "List of sources to enable for cmdline. Null means use default source list.";
+        };
+
+        providers = mkOption {
+          type = attrsOf providerType;
+          default = {};
+          description = "Settings for completion providers";
+        };
+
+        transform_items = mkOption {
+          type = nullOr luaInline;
+          default = mkLuaInline "function(_, items) return items end";
+          defaultText = ''
+            Our default does nothing. If you want blink.cmp's default, which
+            lowers the score for snippets, set this option to null.
+          '';
+          description = ''
+            Function to use when transforming the items before they're returned
+            for all providers.
+          '';
+        };
+      };
+
+      completion = {
+        documentation = {
+          auto_show = mkBool true "Show documentation whenever an item is selected";
+          auto_show_delay_ms = mkOption {
+            type = int;
+            default = 200;
+            description = "Delay before auto show triggers";
+          };
+        };
+      };
+
+      keymap = mkOption {
+        type = keymapType;
+        default = {};
+        description = "blink.cmp keymap";
+        example = literalMD ''
+          ```nix
+          vim.autocomplete.blink-cmp.setupOpts.keymap = {
+            preset = "none";
+
+            "<Up>" = ["select_prev" "fallback"];
+            "<C-n>" = [
+              (lib.generators.mkLuaInline ''''
+                function(cmp)
+                  if some_condition then return end -- runs the next command
+                    return true -- doesn't run the next command
+                  end,
+              '''')
+              "select_next"
+            ];
+          };
+          ```
+        '';
+      };
+
+      fuzzy = {
+        prebuilt_binaries = {
+          download = mkBool false ''
+            Auto-downloads prebuilt binaries. Do not enable, it doesn't work on nix
+          '';
+        };
+      };
+    };
+
+    mappings = {
+      complete = mkMappingOption "Complete [blink.cmp]" "<C-Space>";
+      confirm = mkMappingOption "Confirm [blink.cmp]" "<CR>";
+      next = mkMappingOption "Next item [blink.cmp]" "<Tab>";
+      previous = mkMappingOption "Previous item [blink.cmp]" "<S-Tab>";
+      close = mkMappingOption "Close [blink.cmp]" "<C-e>";
+      scrollDocsUp = mkMappingOption "Scroll docs up [blink.cmp]" "<C-d>";
+      scrollDocsDown = mkMappingOption "Scroll docs down [blink.cmp]" "<C-f>";
+    };
+  };
+}

modules/plugins/completion/blink-cmp/config.nix

@@ -0,0 +1,91 @@
+{
+  lib,
+  config,
+  ...
+}: let
+  inherit (lib.modules) mkIf;
+  inherit (lib.strings) optionalString;
+  inherit (lib.generators) mkLuaInline;
+  inherit (lib.nvim.lua) toLuaObject;
+  inherit (builtins) concatStringsSep typeOf tryEval attrNames mapAttrs;
+
+  cfg = config.vim.autocomplete.blink-cmp;
+  cmpCfg = config.vim.autocomplete.nvim-cmp;
+  inherit (cfg) mappings;
+
+  getPluginName = plugin:
+    if typeOf plugin == "string"
+    then plugin
+    else if (plugin ? pname && (tryEval plugin.pname).success)
+    then plugin.pname
+    else plugin.name;
+in {
+  vim = mkIf cfg.enable {
+    startPlugins = ["blink-compat"];
+    lazy.plugins = {
+      blink-cmp = {
+        package = "blink-cmp";
+        setupModule = "blink.cmp";
+        inherit (cfg) setupOpts;
+
+        # TODO: lazy disabled until lspconfig is lazy loaded
+        #
+        # event = ["InsertEnter" "CmdlineEnter"];
+
+        after = ''
+          ${optionalString config.vim.lazy.enable
+            (concatStringsSep "\n" (map
+              (package: "require('lz.n').trigger_load(${toLuaObject (getPluginName package)})")
+              cmpCfg.sourcePlugins))}
+        '';
+      };
+    };
+
+    autocomplete = {
+      enableSharedCmpSources = true;
+      blink-cmp.setupOpts = {
+        sources = {
+          default = ["lsp" "path" "snippets" "buffer"] ++ (attrNames cmpCfg.sources);
+          providers =
+            mapAttrs (name: _: {
+              inherit name;
+              module = "blink.compat.source";
+            })
+            cmpCfg.sources;
+        };
+        snippets = mkIf config.vim.snippets.luasnip.enable {
+          preset = "luasnip";
+        };
+
+        keymap = {
+          ${mappings.complete} = ["show" "fallback"];
+          ${mappings.close} = ["hide" "fallback"];
+          ${mappings.scrollDocsUp} = ["scroll_documentation_up" "fallback"];
+          ${mappings.scrollDocsDown} = ["scroll_documentation_down" "fallback"];
+          ${mappings.confirm} = ["accept" "fallback"];
+
+          ${mappings.next} = [
+            "select_next"
+            "snippet_forward"
+            (mkLuaInline ''
+              function(cmp)
+                local line, col = unpack(vim.api.nvim_win_get_cursor(0))
+                has_words_before = col ~= 0 and vim.api.nvim_buf_get_lines(0, line - 1, line, true)[1]:sub(col, col):match("%s") == nil
+
+                if has_words_before then
+                  return cmp.show()
+                end
+              end
+            '')
+            "fallback"
+          ];
+          ${mappings.previous} = [
+            "select_prev"
+            "snippet_backward"
+            "fallback"
+          ];
+        };
+      };
+    };
+  };
+}

modules/plugins/completion/blink-cmp/default.nix

@@ -0,0 +1,6 @@
+{
+  imports = [
+    ./blink-cmp.nix
+    ./config.nix
+  ];
+}