Formatting

lua/helpers.lua

@@ -104,5 +104,54 @@ helpers.open_file_modal = function(path, title)
     })
 end
 
+local function get_formatter_bin(formatter)
+    return vim.fn.stdpath 'data' .. '/mason/bin/' .. formatter
+end
+
+local formatter_args = {
+    pint = function(file)
+        return {
+            get_formatter_bin 'pint',
+            '--stdin-filename',
+            file,
+        }
+    end,
+    eslint_d = function(file)
+        return {
+            get_formatter_bin 'eslint_d',
+            '--stdin',
+            '--stdin-filename',
+            file,
+            '--fix-to-stdout',
+        }
+    end,
+    stylua = function(file)
+        return {
+            get_formatter_bin 'stylua',
+            '--stdin-filepath',
+            file,
+            '-',
+        }
+    end,
+}
+
+helpers.format_buffer = function(formatter, buf, cwd)
+    local file = vim.api.nvim_buf_get_name(buf)
+    local input = table.concat(vim.api.nvim_buf_get_lines(buf, 0, -1, false), '\n')
+    local result = vim.system(formatter_args[formatter](file), {
+        text = true,
+        stdin = input,
+        cwd = cwd,
+    }):wait()
+
+    if result.code ~= 0 then
+        vim.notify(result.stderr, vim.log.levels.ERROR)
+        return
+    end
+
+    vim.api.nvim_buf_set_lines(buf, 0, -1, false, vim.split(result.stdout, '\n', { plain = true }))
+end
+
 return helpers
 -- nnoremap <Leader>ev :tabedit $MYVIMRC<CR>
+