1 files changed, 122 insertions, 0 deletions
diff --git a/.config/nvim/lua/plugins/nvim-treesitter.lua b/.config/nvim/lua/plugins/nvim-treesitter.lua
new file mode 100644
index 0000000..2f8e3cb
--- /dev/null
+++ b/.config/nvim/lua/plugins/nvim-treesitter.lua
@@ -0,0 +1,122 @@
+return {
+    "nvim-treesitter/nvim-treesitter",
+    branch = "main",
+    build = ":TSUpdate",
+    init = function()
+        vim.o.foldmethod = "expr"
+        vim.o.foldexpr = "v:lua.vim.treesitter.foldexpr()"
+
+    end,
+    config = function(_, opts)
+        vim.api.nvim_create_autocmd('User', {
+            pattern = 'TSUpdate',
+            callback = function()
+                vim.tbl_extend("force", require('nvim-treesitter.parsers'), opts.custom_parsers or {})
+            end
+        })
+
+        local ts = require('nvim-treesitter')
+
+        local already_installed = ts.get_installed()
+        local parsers_to_install = vim.iter(opts.parsers or {})
+            :filter(function(parser) return not vim.tbl_contains(already_installed, parser) end)
+            :totable()
+
+        ts.install(parsers_to_install)
+
+        -- Auto-install and start parsers for any buffer
+        vim.api.nvim_create_autocmd({ "BufRead", "FileType" }, {
+            desc = "Enable Treesitter",
+            callback = function(event)
+                local bufnr = event.buf
+                local filetype = vim.api.nvim_get_option_value("filetype", { buf = bufnr })
+
+                -- Skip if no filetype
+                if filetype == "" then
+                    return
+                end
+
+                -- Get parser name based on filetype
+                local parser_name = vim.treesitter.language.get_lang(filetype)
+                if not parser_name then
+                    vim.notify(vim.inspect("No treesitter parser found for filetype: " .. filetype), vim.log.levels.WARN)
+                    return
+                end
+
+                -- Try to get existing parser
+                local parser_configs = require("nvim-treesitter.parsers")
+                if not parser_configs[parser_name] then
+                    return -- Parser not available, skip silently
+                end
+
+                local parser_exists = pcall(vim.treesitter.get_parser, bufnr, parser_name)
+
+                local function init_treesitter()
+                    -- vim.notify(vim.inspect("Starting treesitter parser " .. parser_name .. " for filetype: " .. filetype), vim.log.levels.WARN)
+                    vim.treesitter.start(bufnr, parser_name)
+                    -- Use regex based syntax-highlighting as fallback as some plugins might need it
+                    -- vim.bo[bufnr].syntax = "ON"
+                    -- vim.wo.foldtext = "v:lua.vim.treesitter.foldtext()"
+                    -- Use treesitter for indentation
+                    vim.bo[bufnr].indentexpr = "v:lua.require'nvim-treesitter'.indentexpr()"
+                end
+
+                if not parser_exists then
+                    -- check if parser is already installed
+                    if vim.tbl_contains(already_installed, parser_name) then
+                        vim.notify("Parser for " .. parser_name .. " already installed.", vim.log.levels.INFO)
+                        init_treesitter()
+                    -- else
+                    --     -- If not installed, install parser synchronously
+                    --     vim.notify("Installing parser for " .. parser_name, vim.log.levels.INFO)
+                    --     treesitter.install({ parser_name }):await(init_treesitter)
+                    end
+                else
+                    init_treesitter()
+                end
+
+            end,
+        })
+    end,
+    opts = {
+        parsers = {
+            "lua",
+            "c",
+            "vim",
+            "vimdoc",
+            "query",
+            "rust",
+            "fish",
+            "json",
+            "javascript",
+            "latex",
+            "markdown",
+            "markdown_inline",
+            "zig",
+            "typescript",
+            "toml",
+            "svelte",
+            "comment",
+            "html",
+            "typst",
+            "ron",
+            "smali",
+            "java",
+            "kotlin",
+            "styled",
+            "nix",
+            "gitignore",
+            "meson"
+            -- "d2"
+        },
+        custom_parsers = {
+            d2 = {
+                install_info = {
+                    url = 'https://github.com/ravsii/tree-sitter-d2',
+                    queries = 'queries',
+                },
+            }
+        }
+    },
+    lazy = false
+}