Add new hello world lab-extension

packages/lab-extension/package.json

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+{
+    "name": "@e2xgrader/labextension",
+    "version": "0.1.0",
+    "description": "A JupyterLab extension which bundles e2xgrader extensions",
+    "keywords": [
+        "jupyter",
+        "jupyterlab",
+        "jupyterlab-extension"
+    ],
+    "homepage": "https://github.com/DigiKlausur/e2xgrader",
+    "bugs": {
+        "url": "https://github.com/DigiKlausur/e2xgrader/issues"
+    },
+    "license": "BSD-3-Clause",
+    "author": {
+        "name": "Tim Metzler",
+        "email": "[email protected]"
+    },
+    "files": [
+        "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
+        "style/**/*.{css,js,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
+        "src/**/*.{ts,tsx}",
+        "schema/*.json"
+    ],
+    "main": "lib/index.js",
+    "types": "lib/index.d.ts",
+    "style": "style/index.css",
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/DigiKlausur/e2xgrader.git"
+    },
+    "scripts": {
+        "build": "jlpm build:lib && jlpm build:labextension:dev",
+        "build:prod": "jlpm clean && jlpm build:lib:prod && jlpm build:labextension",
+        "build:labextension": "jupyter labextension build .",
+        "build:labextension:dev": "jupyter labextension build --development True .",
+        "build:lib": "tsc --sourceMap",
+        "build:lib:prod": "tsc",
+        "clean": "jlpm clean:lib",
+        "clean:lib": "rimraf lib tsconfig.tsbuildinfo",
+        "clean:lintcache": "rimraf .eslintcache .stylelintcache",
+        "clean:labextension": "rimraf e2xgrader_extensions/labextension e2xgrader_extensions/_version.py",
+        "clean:all": "jlpm clean:lib && jlpm clean:labextension && jlpm clean:lintcache",
+        "eslint": "jlpm eslint:check --fix",
+        "eslint:check": "eslint . --cache --ext .ts,.tsx",
+        "install:extension": "jlpm build",
+        "lint": "jlpm stylelint && jlpm prettier && jlpm eslint",
+        "lint:check": "jlpm stylelint:check && jlpm prettier:check && jlpm eslint:check",
+        "prettier": "jlpm prettier:base --write --list-different",
+        "prettier:base": "prettier \"**/*{.ts,.tsx,.js,.jsx,.css,.json,.md}\"",
+        "prettier:check": "jlpm prettier:base --check",
+        "stylelint": "jlpm stylelint:check --fix",
+        "stylelint:check": "stylelint --cache \"style/**/*.css\"",
+        "test": "jest --coverage",
+        "watch": "run-p watch:src watch:labextension",
+        "watch:src": "tsc -w --sourceMap",
+        "watch:labextension": "jupyter labextension watch ."
+    },
+    "dependencies": {
+        "@jupyterlab/application": "^4.0.0",
+        "@jupyterlab/settingregistry": "^4.0.0"
+    },
+    "devDependencies": {
+        "@jupyterlab/builder": "^4.0.0",
+        "@jupyterlab/testutils": "^4.0.0",
+        "@types/jest": "^29.2.0",
+        "@types/json-schema": "^7.0.11",
+        "@types/react": "^18.0.26",
+        "@types/react-addons-linked-state-mixin": "^0.14.22",
+        "@typescript-eslint/eslint-plugin": "^6.1.0",
+        "@typescript-eslint/parser": "^6.1.0",
+        "css-loader": "^6.7.1",
+        "eslint": "^8.36.0",
+        "eslint-config-prettier": "^8.8.0",
+        "eslint-plugin-prettier": "^5.0.0",
+        "jest": "^29.2.0",
+        "npm-run-all": "^4.1.5",
+        "prettier": "^3.0.0",
+        "rimraf": "^5.0.1",
+        "source-map-loader": "^1.0.2",
+        "style-loader": "^3.3.1",
+        "stylelint": "^15.10.1",
+        "stylelint-config-recommended": "^13.0.0",
+        "stylelint-config-standard": "^34.0.0",
+        "stylelint-csstree-validator": "^3.0.0",
+        "stylelint-prettier": "^4.0.0",
+        "typescript": "~5.0.2",
+        "yjs": "^13.5.0"
+    },
+    "sideEffects": [
+        "style/*.css",
+        "style/index.js"
+    ],
+    "styleModule": "style/index.js",
+    "publishConfig": {
+        "access": "public"
+    },
+    "jupyterlab": {
+        "extension": true,
+        "outputDir": "../../e2xgrader/static/labextensions/@e2xgrader/labextension",
+        "schemaDir": "schema"
+    },
+    "eslintIgnore": [
+        "node_modules",
+        "dist",
+        "coverage",
+        "**/*.d.ts",
+        "tests",
+        "**/__tests__",
+        "ui-tests"
+    ],
+    "eslintConfig": {
+        "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"
+        }
+    },
+    "prettier": {
+        "singleQuote": true,
+        "trailingComma": "none",
+        "arrowParens": "avoid",
+        "endOfLine": "auto",
+        "overrides": [
+            {
+                "files": "package.json",
+                "options": {
+                    "tabWidth": 4
+                }
+            }
+        ]
+    },
+    "stylelint": {
+        "extends": [
+            "stylelint-config-recommended",
+            "stylelint-config-standard",
+            "stylelint-prettier/recommended"
+        ],
+        "plugins": [
+            "stylelint-csstree-validator"
+        ],
+        "rules": {
+            "csstree/validator": true,
+            "property-no-vendor-prefix": null,
+            "selector-class-pattern": "^([a-z][A-z\\d]*)(-[A-z\\d]+)*$",
+            "selector-no-vendor-prefix": null,
+            "value-no-vendor-prefix": null
+        }
+    }
+}

packages/lab-extension/schema/plugin.json

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+{
+  "jupyter.lab.shortcuts": [],
+  "title": "@e2xgrader/labextension",
+  "description": "@e2xgrader/labextension settings.",
+  "type": "object",
+  "properties": {},
+  "additionalProperties": false
+}

packages/lab-extension/src/index.ts

@@ -0,0 +1,41 @@
+import {
+  JupyterFrontEnd,
+  JupyterFrontEndPlugin
+} from '@jupyterlab/application';
+
+import { ISettingRegistry } from '@jupyterlab/settingregistry';
+
+/**
+ * Initialization data for the @e2xgrader/labextension extension.
+ */
+const plugin: JupyterFrontEndPlugin<void> = {
+  id: '@e2xgrader/labextension:plugin',
+  description: 'A JupyterLab extension which bundles e2xgrader extensions',
+  autoStart: true,
+  optional: [ISettingRegistry],
+  activate: (
+    app: JupyterFrontEnd,
+    settingRegistry: ISettingRegistry | null
+  ) => {
+    console.log('JupyterLab extension @e2xgrader/labextension is activated!');
+
+    if (settingRegistry) {
+      settingRegistry
+        .load(plugin.id)
+        .then(settings => {
+          console.log(
+            '@e2xgrader/labextension settings loaded:',
+            settings.composite
+          );
+        })
+        .catch(reason => {
+          console.error(
+            'Failed to load settings for @e2xgrader/labextension.',
+            reason
+          );
+        });
+    }
+  }
+};
+
+export default [plugin];

packages/lab-extension/style/base.css

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+/*
+    See the JupyterLab Developer Guide for useful CSS Patterns:
+
+    https://jupyterlab.readthedocs.io/en/stable/developer/css.html
+*/

packages/lab-extension/style/index.css

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+@import url('base.css');

packages/lab-extension/style/index.js

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+import './base.css';

packages/lab-extension/tsconfig.json

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+{
+  "extends": "../../tsconfig",
+  "compilerOptions": {
+    "outDir": "lib",
+    "rootDir": "src"
+  },
+  "include": ["src/**/*"]
+}