initial commit

.eslintignore

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+node_modules
+dist
+coverage
+**/*.d.ts
+tests

.eslintrc.js

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+module.exports = {
+  extends: [
+    'eslint:recommended',
+    'plugin:@typescript-eslint/eslint-recommended',
+    'plugin:@typescript-eslint/recommended',
+    'plugin:prettier/recommended'
+  ],
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    project: 'tsconfig.json',
+    sourceType: 'module'
+  },
+  plugins: ['@typescript-eslint'],
+  rules: {
+    '@typescript-eslint/naming-convention': [
+      'error',
+      {
+        'selector': 'interface',
+        'format': ['PascalCase'],
+        'custom': {
+          'regex': '^I[A-Z]',
+          'match': true
+        }
+      }
+    ],
+    '@typescript-eslint/no-unused-vars': ['warn', { args: 'none' }],
+    '@typescript-eslint/no-explicit-any': 'off',
+    '@typescript-eslint/no-namespace': 'off',
+    '@typescript-eslint/no-use-before-define': 'off',
+    '@typescript-eslint/quotes': [
+      'error',
+      'single',
+      { avoidEscape: true, allowTemplateLiterals: false }
+    ],
+    curly: ['error', 'all'],
+    eqeqeq: 'error',
+    'prefer-arrow-callback': 'error'
+  }
+};

.gitignore

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+*.bundle.*
+lib/
+node_modules/
+*.egg-info/
+.ipynb_checkpoints
+*.tsbuildinfo
+jupyterlab_kernel_usage/labextension
+
+# Created by https://www.gitignore.io/api/python
+# Edit at https://www.gitignore.io/?templates=python
+
+### Python ###
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# pyenv
+.python-version
+
+# celery beat schedule file
+celerybeat-schedule
+
+# SageMath parsed files
+*.sage.py
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# Mr Developer
+.mr.developer.cfg
+.project
+.pydevproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# End of https://www.gitignore.io/api/python
+
+# OSX files
+.DS_Store

.prettierignore

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+node_modules
+**/node_modules
+**/lib
+**/package.json
+jupyterlab_kernel_usage

.prettierrc

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+{
+  "singleQuote": true,
+  "trailingComma": "none",
+  "arrowParens": "avoid"
+}

CHANGELOG.md

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+# Changelog
+
+<!-- <START NEW CHANGELOG ENTRY> -->
+
+<!-- <END NEW CHANGELOG ENTRY> -->

LICENSE

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+BSD 3-Clause License
+
+Copyright (c) 2021, Eric Charles
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

MANIFEST.in

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+include LICENSE
+include *.md
+include pyproject.toml
+recursive-include jupyter-config *.json
+
+include package.json
+include install.json
+include ts*.json
+include yarn.lock
+
+graft jupyterlab_kernel_usage/labextension
+
+# Javascript files
+graft src
+graft style
+prune **/node_modules
+prune lib
+prune binder
+
+# Patterns to exclude from any directory
+global-exclude *~
+global-exclude *.pyc
+global-exclude *.pyo
+global-exclude .git
+global-exclude .ipynb_checkpoints

README.md

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+# JupyterLab Kernel Usage
+
+[![Github Actions Status](https://github.com/quansight/jupyterlab-kernel-usage/workflows/Build/badge.svg)](https://github.com/quansight/jupyterlab-kernel-usage/actions/workflows/build.yml)
+
+Get kernel usage in a JupyerLab sidebar.
+
+![JupyterLab Kernel Usage](./images/preview.gif)
+
+> For now, you will need to "bootstrap" the sidebar clicking between 2 notebooks so the values show up and refresh. Do that only the first time you make the sidebar visible.
+
+This extension is composed of a Python package named `jupyterlab_kernel_usage`
+for the server extension and a NPM package named `jupyterlab-kernel-usage`
+for the frontend extension.
+
+## Contributing
+
+### Development install
+
+Note: You will need NodeJS to build the extension package.
+
+The `jlpm` command is JupyterLab's pinned version of
+[yarn](https://yarnpkg.com/) that is installed with JupyterLab. You may use
+`yarn` or `npm` in lieu of `jlpm` below.
+
+```bash
+# Clone the repo to your local environment
+# Change directory to the jupyterlab_kernel_usage directory
+# Install package in development mode
+pip install -e .
+# Link your development version of the extension with JupyterLab
+jupyter labextension develop . --overwrite
+# Server extension must be manually installed in develop mode
+jupyter server extension enable jupyterlab_kernel_usage
+# Rebuild extension Typescript source after making changes
+jlpm run build
+```
+
+You can watch the source directory and run JupyterLab at the same time in different terminals to watch for changes in the extension's source and automatically rebuild the extension.
+
+```bash
+# Watch the source directory in one terminal, automatically rebuilding when needed
+jlpm run watch
+# Run JupyterLab in another terminal
+jupyter lab
+```
+
+With the watch command running, every saved change will immediately be built locally and available in your running JupyterLab. Refresh JupyterLab to load the change in your browser (you may need to wait several seconds for the extension to be rebuilt).
+
+By default, the `jlpm run build` command generates the source maps for this extension to make it easier to debug using the browser dev tools. To also generate source maps for the JupyterLab core extensions, you can run the following command:
+
+```bash
+jupyter lab build --minimize=False
+```
+
+### Development uninstall
+
+```bash
+# Server extension must be manually disabled in develop mode
+jupyter server extension disable jupyterlab_kernel_usage
+pip uninstall jupyterlab_kernel_usage
+```
+
+In development mode, you will also need to remove the symlink created by `jupyter labextension develop`
+command. To find its location, you can run `jupyter labextension list` to figure out where the `labextensions`
+folder is located. Then you can remove the symlink named `jupyterlab_kernel_usage` within that folder.
+
+## Requirements
+
+* JupyterLab >= 3.0
+
+## Install
+
+To install the extension, execute:
+
+```bash
+pip install jupyterlab_kernel_usage
+```
+
+## Uninstall
+
+To remove the extension, execute:
+
+```bash
+pip uninstall jupyterlab_kernel_usage
+```
+
+
+## Troubleshoot
+
+If you are seeing the frontend extension, but it is not working, check
+that the server extension is enabled:
+
+```bash
+jupyter server extension list
+```
+
+If the server extension is installed and enabled, but you are not seeing
+the frontend extension, check the frontend extension is installed:
+
+```bash
+jupyter labextension list
+```
+### Packaging the extension
+
+See [RELEASE](RELEASE.md)