CapsLock switch to EN, Shift-CapsLock to RU - with Karabiner Elements in MacOS

shift-caps-input-source.json

{
  "title": "[Shift-]Capslock changes to correct layout",
  "rules": [
    {
      "description": "Capslock to EN if in RU",
      "manipulators": [
	{
          "conditions": [
            {
              "type": "input_source_if",
              "input_sources": [
                {
                  "language": "ru"
                }
              ]
            }
          ],
          "type": "basic",
          "from": {
            "key_code": "caps_lock",
            "modifiers": {
              "optional": [
                "caps_lock"
              ]
            }
          },
          "to": [
            {
              "select_input_source": {
                "language": "en"
	      }
            }
          ]
        }
      ]
    },
    {
      "description": "Disable Capslock if already in EN",
      "manipulators": [
	{
          "conditions": [
            {
              "type": "input_source_if",
              "input_sources": [
                {
                  "language": "en"
                }
              ]
            }
          ],
          "type": "basic",
          "from": {
            "key_code": "caps_lock",
            "modifiers": {
              "optional": [
                "caps_lock"
              ]
            }
          },
          "to": [
            {
              "key_code": "out"
            }
          ]
        }
      ]
    },
    {
      "description": "Shift-Capslock to RU if in EN",
      "manipulators": [
	{
          "conditions": [
            {
              "type": "input_source_if",
              "input_sources": [
                {
                  "language": "en"
                }
              ]
            }
          ],
          "type": "basic",
          "from": {
            "key_code": "caps_lock",
            "modifiers": {
              "mandatory": [
                "left_shift"
              ]
            }
          },
          "to": [
            {
              "select_input_source": {
                "language": "ru"
	      }
            }
          ]
        }
      ]
    },
    {
      "description": "Disable Shift-Capslock if already in RU",
      "manipulators": [
	{
          "conditions": [
            {
              "type": "input_source_if",
              "input_sources": [
                {
                  "language": "ru"
                }
              ]
            }
          ],
          "type": "basic",
          "from": {
            "key_code": "caps_lock",
            "modifiers": {
              "mandatory": [
                "left_shift"
              ]
            }
          },
          "to": [
            {
              "key_code": "out"
            }
          ]
        }
      ]
    }
  ]
}