Bump to latest template version (jupyterlab#258)

* Bump to latest template version

* Add empty yarn.lock to ui-tests folders

* Fix embedme

* Fix link

Author: fcollonval

.gitignore

@@ -5,7 +5,6 @@ node_modules/
 *.egg-info/
 .ipynb_checkpoints
 *.tsbuildinfo
-*.lock
 __pycache__
 .yarn/
 
@@ -18,3 +17,5 @@ labextension
 _version.py
 
 .jupyter_ystore.db
+yarn.lock
+!**/ui-tests/yarn.lock

codemirror-extension/.copier-answers.yml

@@ -1,5 +1,5 @@
 # Changes here will be overwritten by Copier; NEVER EDIT MANUALLY
-_commit: v4.0.5
+_commit: v4.2.4
 _src_path: gh:jupyterlab/extension-template
 author_email: ''
 author_name: Project Jupyter Contributors

codemirror-extension/.yarnrc.yml

@@ -1,3 +1 @@
-enableImmutableInstalls: false
-
 nodeLinker: node-modules

codemirror-extension/jupyterlab_examples_codemirror_extension/__init__.py

@@ -1,4 +1,12 @@
-from ._version import __version__
+try:
+    from ._version import __version__
+except ImportError:
+    # Fallback when using the package in dev mode without installing
+    # in editable mode with pip. It is highly recommended to install
+    # the package from a stable release or in editable mode: https://pip.pypa.io/en/stable/topics/local-project-installs/#editable-installs
+    import warnings
+    warnings.warn("Importing 'jupyterlab_examples_codemirror_extension' outside a proper installation.")
+    __version__ = "dev"
 
 
 def _jupyter_labextension_paths():