README.md

CWL-language-server

What is Language Server ?

For details, see Langserver.org.

Requirements

• Python3
• master branch of yeger00/pylspclient: LSP client implementation in Python

How to setup

$ git clone https://github.com/common-workflow-language/cwl-language-server.git
$ cd cwl-language-server
$ pip install -r requirements.txt

How to execute example

$ git clone https://github.com/common-workflow-language/cwl-language-server.git
$ cd cwl-language-server
$ pip install -r requirements.txt
$ PYTHONPATH=$PWD python examples/first-step.py
{'capabilities': {'completionProvider': {'triggerCharacters': [': ']}}}
None
{'jsonrpc': '2.0', 'method': 'initialized', 'params': {}}
[{'label': 'draft-2', 'deprecated': True}, {'label': 'draft-3.dev1', 'deprecated': True}, {'label': 'draft-3.dev2', 'deprecated': True}, {'label': 'draft-3.dev3', 'deprecated': True}, {'label': 'draft-3.dev4', 'deprecated': True}, {'label': 'draft-3.dev5', 'deprecated': True}, {'label': 'draft-3', 'deprecated': True}, {'label': 'draft-4.dev1', 'deprecated': True}, {'label': 'draft-4.dev2', 'deprecated': True}, {'label': 'draft-4.dev3', 'deprecated': True}, {'label': 'v1.0.dev4', 'deprecated': True}, {'label': 'v1.0'}]

Use CTRL-c to exit the example.

Example: Emacs with Eglot

• Install Eglot via package manager such as package.el
• Configure Eglot for cwl-language-server
  • Add the following to init.el:

(require 'eglot)
(add-to-list 'eglot-server-programs
             '(cwl-mode . ("/path/to/python" "/path/to/cwl-language-server/cwl_language_server/main.py")))
(add-hook 'cwl-mode-hook 'eglot-ensure)

• Open CWL file
• Set the cursor after cwlVersion:
• If you installed company.el, possible versions are listed in the completion list. Otherwise use M-x completion-at-point or M-x company-complete by hand.
• Have fun!