jsonls: fix range formatting, add command for formatting buffer

1 files changed, 17 insertions, 0 deletions

diff --git a/lua/lspconfig/jsonls.lua b/lua/lspconfig/jsonls.lua
index 9db3cb7b..3db6b83d 100644
--- a/lua/lspconfig/jsonls.lua
+++ b/lua/lspconfig/jsonls.lua
@@ -8,6 +8,9 @@ configs[server_name] = {
   default_config = {
     cmd = {bin_name, "--stdio"};
     filetypes = {"json"};
+    init_options = {
+      provideFormatter = true;
+    };
     root_dir = util.root_pattern(".git", vim.fn.getcwd());
   };
   docs = {
@@ -22,6 +25,20 @@ vscode-json-languageserver, a language server for JSON and JSON schema
 ```sh
 npm install -g vscode-json-languageserver
 ```
+
+vscode-json-languageserver only provides range formatting. You can map a command that applies range formatting to the entire document:
+
+```lua
+require'lspconfig'.jsonls.setup {
+    commands = {
+      Format = {
+        function()
+          vim.lsp.buf.range_formatting({},{0,0},{vim.fn.line("$"),0})
+        end
+      }
+    }
+}
+```
 ]];
     default_config = {
       root_dir = [[root_pattern(".git", vim.fn.getcwd())]];