Basic support for the ccls language server (#19)

Based on the clangd equivalent

2 files changed, 31 insertions, 0 deletions

diff --git a/lua/nvim_lsp.lua b/lua/nvim_lsp.lua
index d892f696..ed8e979a 100644
--- a/lua/nvim_lsp.lua
+++ b/lua/nvim_lsp.lua
@@ -1,5 +1,6 @@
 local skeleton = require 'nvim_lsp/skeleton'
 require 'nvim_lsp/bashls'
+require 'nvim_lsp/ccls'
 require 'nvim_lsp/clangd'
 require 'nvim_lsp/elmls'
 require 'nvim_lsp/gopls'
diff --git a/lua/nvim_lsp/ccls.lua b/lua/nvim_lsp/ccls.lua
new file mode 100644
index 00000000..88795526
--- /dev/null
+++ b/lua/nvim_lsp/ccls.lua
@@ -0,0 +1,30 @@
+local skeleton = require 'nvim_lsp/skeleton'
+local util = require 'nvim_lsp/util'
+local lsp = vim.lsp
+
+skeleton.ccls = {
+  default_config = util.utf8_config {
+    cmd = {"ccls"};
+    filetypes = {"c", "cpp", "objc", "objcpp"};
+    root_dir = util.root_pattern("compile_commands.json", "compile_flags.txt", ".git");
+    log_level = lsp.protocol.MessageType.Warning;
+    settings = {};
+  };
+  -- commands = {};
+  -- on_new_config = function(new_config) end;
+  -- on_attach = function(client, bufnr) end;
+  docs = {
+    description = [[
+https://github.com/MaskRay/ccls/wiki
+
+ccls relies on a [JSON compilation database](https://clang.llvm.org/docs/JSONCompilationDatabase.html) specified
+as compile_commands.json or, for simpler projects, a compile_flags.txt.
+]];
+    default_config = {
+      root_dir = [[root_pattern("compile_commands.json", "compile_flags.txt", ".git")]];
+      on_init = [[function to handle changing offsetEncoding]];
+      capabilities = [[default capabilities, with offsetEncoding utf-8]];
+    };
+  };
+}
+-- vim:et ts=2 sw=2