Add option to activate fuzzy completions in Jedi (#728)

Co-authored-by: Carlos Cordoba <ccordoba12@gmail.com>

Author: benmezger

pyls/plugins/jedi_completion.py

@@ -1,8 +1,10 @@
 # Copyright 2017 Palantir Technologies, Inc.
 import logging
 import os.path as osp
+
 import parso
-from pyls import hookimpl, lsp, _utils
+
+from pyls import _utils, hookimpl, lsp
 
 log = logging.getLogger(__name__)
 
@@ -51,7 +53,10 @@
 @hookimpl
 def pyls_completions(config, document, position):
     """Get formatted completions for current code position"""
+    settings = config.plugin_settings('jedi_completion', document_path=document.path)
     code_position = _utils.position_to_jedi_linecolumn(document, position)
+
+    code_position["fuzzy"] = settings.get("fuzzy", False)
     completions = document.jedi_script().complete(**code_position)
 
     if not completions:
@@ -60,7 +65,6 @@ def pyls_completions(config, document, position):
     completion_capabilities = config.capabilities.get('textDocument', {}).get('completion', {})
     snippet_support = completion_capabilities.get('completionItem', {}).get('snippetSupport')
 
-    settings = config.plugin_settings('jedi_completion', document_path=document.path)
     should_include_params = settings.get('include_params')
     include_params = snippet_support and should_include_params and use_snippets(document, position)
     return [_format_completion(c, include_params) for c in completions] or None

test/plugins/test_completion.py

@@ -63,6 +63,21 @@ def test_jedi_completion(config, workspace):
     pyls_jedi_completions(config, doc, {'line': 1, 'character': 1000})
 
 
+def test_jedi_completion_with_fuzzy_enabled(config, workspace):
+    # Over 'i' in os.path.isabs(...)
+    config.update({'plugins': {'jedi_completion': {'fuzzy': True}}})
+    com_position = {'line': 1, 'character': 15}
+    doc = Document(DOC_URI, workspace, DOC)
+
+    items = pyls_jedi_completions(config, doc, com_position)
+
+    assert items
+    assert items[0]['label'] == 'commonprefix(list)'
+
+    # Test we don't throw with big character
+    pyls_jedi_completions(config, doc, {'line': 1, 'character': 1000})
+
+
 def test_rope_completion(config, workspace):
     # Over 'i' in os.path.isabs(...)
     com_position = {'line': 1, 'character': 15}

vscode-client/package.json

@@ -55,6 +55,11 @@
                     "default": true,
                     "description": "Auto-completes methods and classes with tabstops for each parameter."
                 },
+                "pyls.plugins.jedi_completion.fuzzy": {
+                    "type": "boolean",
+                    "default": false,
+                    "description": "Enable fuzzy when requesting autocomplete."
+                },
                 "pyls.plugins.jedi_definition.enabled": {
                     "type": "boolean",
                     "default": true,