Migrate jupyterlab-git extension to jupyterLab 4.

.eslintrc.js

@@ -1,52 +1,52 @@
 module.exports = {
-    extends: [
-      'eslint:recommended',
-      'plugin:@typescript-eslint/eslint-recommended',
-      'plugin:@typescript-eslint/recommended',
-      'plugin:prettier/recommended',
-      'plugin:react/recommended'
-    ],
-    parser: '@typescript-eslint/parser',
-    parserOptions: {
-      project: 'tsconfig.json',
-      sourceType: 'module'
-    },
-    plugins: ['@typescript-eslint'],
-    rules: {
-      '@typescript-eslint/explicit-function-return-type': 'off',
-      "@typescript-eslint/naming-convention": [
-        "error",
-        {
-          "selector": "interface",
-          "format": ["PascalCase"],
-          "custom": {
-            "regex": "^I[A-Z]",
-            "match": true
-          }
+  extends: [
+    'eslint:recommended',
+    'plugin:@typescript-eslint/eslint-recommended',
+    'plugin:@typescript-eslint/recommended',
+    'plugin:prettier/recommended',
+    'plugin:react/recommended'
+  ],
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    project: 'tsconfig.json',
+    sourceType: 'module'
+  },
+  plugins: ['@typescript-eslint'],
+  rules: {
+    '@typescript-eslint/explicit-function-return-type': 'off',
+    '@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-this-alias': [
-        'error',
-        {
-          allowedNames: ['self'], // Allow `const self = this`
-        },
-      ],
-      '@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'
-    },
-    settings: {
-      react: {
-        version: 'detect'
       }
+    ],
+    '@typescript-eslint/no-unused-vars': ['warn', { args: 'none' }],
+    '@typescript-eslint/no-explicit-any': 'off',
+    '@typescript-eslint/no-namespace': 'off',
+    '@typescript-eslint/no-this-alias': [
+      'error',
+      {
+        allowedNames: ['self'] // Allow `const self = this`
+      }
+    ],
+    '@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'
+  },
+  settings: {
+    react: {
+      version: 'detect'
     }
-  };
+  }
+};

.gitignore

@@ -1,18 +1,20 @@
 *.bundle.*
 lib/
 node_modules/
+*.log
+.eslintcache
+.stylelintcache
 *.egg-info/
 .ipynb_checkpoints
 *.tsbuildinfo
 jupyterlab_git/labextension
-
-src/version.ts
+# Version file is handled by hatchling
+jupyterlab_git/_version.py
 
 # Integration tests
 ui-tests/test-results/
 ui-tests/playwright-report/
 
-
 # Created by https://www.gitignore.io/api/python
 # Edit at https://www.gitignore.io/?templates=python
 
@@ -63,6 +65,7 @@ htmlcov/
 .coverage.*
 .cache
 nosetests.xml
+coverage/
 coverage.xml
 *.cover
 .hypothesis/
@@ -81,9 +84,6 @@ docs/_build/
 # PyBuilder
 target/
 
-# Jupyter Notebook
-.ipynb_checkpoints
-
 # pyenv
 .python-version
 
@@ -93,14 +93,6 @@ celerybeat-schedule
 # SageMath parsed files
 *.sage.py
 
-# dotenv
-.env
-
-# virtualenv
-.venv
-venv/
-ENV/
-
 # Spyder project settings
 .spyderproject
 .spyproject
@@ -129,14 +121,5 @@ dmypy.json
 # OSX files
 .DS_Store
 
-# jetbrains ide stuff
-*.iml
-.idea/
-
-# vscode ide stuff
-*.code-workspace
-.history
-.vscode
-
-# vim stuff
-*.swp
+# Yarn cache
+.yarn/

.prettierignore

@@ -2,4 +2,5 @@ node_modules
 **/node_modules
 **/lib
 **/package.json
+!/package.json
 jupyterlab_git

.yarnrc.yml

@@ -0,0 +1,3 @@
+enableImmutableInstalls: false
+
+nodeLinker: node-modules

CHANGELOG.md

@@ -0,0 +1,5 @@
+# Changelog
+
+<!-- <START NEW CHANGELOG ENTRY> -->
+
+<!-- <END NEW CHANGELOG ENTRY> -->

CONTRIBUTING.md

@@ -15,17 +15,17 @@ If you have suggestions on how these processes can be improved, please suggest t
 If you are using this software and encounter some behavior that is unexpected, then you may have come across a bug!
 To get this fixed, first creation an issue that should have, ideally:
 
-* The behavior you expected
-* The actual behavior (screenshots can be helpful here)
-* How someone else could reproduce it (version of the software, as well as your browser and OS can help)
+- The behavior you expected
+- The actual behavior (screenshots can be helpful here)
+- How someone else could reproduce it (version of the software, as well as your browser and OS can help)
 
 Once you create this issue, someone with commit rights should come by and try to reproduce the issue locally and comment if they are able to. If they are able to, then they will add the `type:Bug` label. If they are not able to, then they will add the `status: Needs info` label and wait for information from you.
 
 Hopefully, then some nice person will come by to fix your bug! This will likely be someone who already works on the project,
 but it could be anyone.
 
 They will fix the bug locally, then push those changes to their fork. Then they will make a pull request, and in the description
-say "This fixes bug #xxx". 
+say "This fixes bug #xxx".
 
 Someone who maintains the repo will review this change, and this can lead to some more back and forth about the implementation.
 
@@ -38,7 +38,7 @@ Maybe the current behavior isn't wrong, but you still have an idea on how it cou
 
 The flow will be similar to opening a bug, but the process could be longer, as we all work together to agree on what
 behavior should be added. So when you open an issue, it's helpful to give some context around what you are trying to achieve,
-why that is important, where the current functionality falls short, and any ideas you have on how it could be improved. 
+why that is important, where the current functionality falls short, and any ideas you have on how it could be improved.
 
 These issues should get a `type:Enhancement` label. If the solution seems obvious enough and you think others will agree,
 then anyone is welcome to implement the solution and propose it in a pull request.

Design.md

@@ -1,19 +1,23 @@
-## Product Goals: 
+## Product Goals:
+
 - Give users a good set of handrails so in their use of the UI, they don’t get themselves stuck.
   - Provide a ‘happy path’ that the extension doesn’t deviate from. Make it easy for users to follow this happy path and difficult for them to deviate from it.
 - Help establish a good working rhythm with Git that will help them develop a useful mental model .
   - Expose the most frequently used commands that cover the majority of daily git use.
 - Increase Usability of Git
   - Shield user from repetitive actions.
-  - Increase visibility of the state of Git Repos; surface state-related information. 
+  - Increase visibility of the state of Git Repos; surface state-related information.
   - Unblock advanced commands by easing transition to terminal when necessary.
 
-## Research Requirements: 
+## Research Requirements:
+
 - Surface the most used commands, and in what context they are used.
 - Discover Git functionality that is frequently helpful, but difficult to execute.
 
 ## Design Requirements:
+
 ### First Stage
+
 - Add remote functionality (Push to Origin [default], Pull from Origin [default], Expose Remotes?)
   - Merge/diff conflicts handled in the terminal
 - Branches
@@ -28,7 +32,9 @@
   - Commit
   - Stage
   - Remove
+
 ### First Stage Stretch goals.
+
 - Give Git feedback in the file browsers
   - Allow users to link to the git extension directly from the file browser.
 - Add Stash Functionality.

LICENSE

@@ -1,20 +1,21 @@
 BSD 3-Clause License
 
-Copyright (c) 2020, Jupyter Development Team All rights reserved.
+Copyright (c) 2023, Jupyter Development Team
+All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:
 
-* Redistributions of source code must retain the above copyright notice, this
-  list of conditions and the following disclaimer.
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
 
-* 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.
+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.
 
-* 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.
+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