feat(formatter): add cmake-format formatter (#66)

Author: barrettruth

lua/guard-collection/formatter.lua

@@ -30,6 +30,12 @@ M.cbfmt = {
   stdin = true,
 }
 
+M['cmake-format'] = {
+  cmd = 'cmake-format',
+  args = { '-' },
+  stdin = true,
+}
+
 M['clang-format'] = {
   cmd = 'clang-format',
   stdin = true,

test/formatter/cmake-format_spec.lua

@@ -0,0 +1,17 @@
+describe('cmake-format', function()
+  it('can format', function()
+    local ft = require('guard.filetype')
+    ft('cmake'):fmt('cmake-format')
+
+    local formatted = require('test.formatter.helper').test_with('cmake', {
+      [[cmake_minimum_required(VERSION 3.10)]],
+      [[project(test)]],
+      [[add_executable(test main.cpp)]],
+    })
+    assert.are.same({
+      [[cmake_minimum_required(VERSION 3.10)]],
+      [[project(test)]],
+      [[add_executable(test main.cpp)]],
+    }, formatted)
+  end)
+end)