feat: add "Install Hermione" action

.eslintignore

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+vscode.d.ts
+vscode.proposed.d.ts
+out
+node_modules

.eslintrc.js

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+module.exports = {
+    extends: ["gemini-testing", "plugin:@typescript-eslint/recommended", "prettier"],
+    parser: "@typescript-eslint/parser",
+    plugins: ["@typescript-eslint"],
+    root: true,
+    parserOptions: {
+        ecmaVersion: 2022,
+    },
+    overrides: [
+        {
+            files: ["*.ts"],
+            rules: {
+                "@typescript-eslint/explicit-function-return-type": "error",
+                "@typescript-eslint/no-unsafe-declaration-merging": "off",
+            },
+        },
+    ],
+};

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false
+contact_links:
+  - name: File an issue
+    url: https://github.com/gemini-testing/hermione/issues
+    about: We track issues in the gemini-testing/hermione repository

.github/workflows/ci.yml

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+name: Node.js CI
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [20.x]
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+            node-version: ${{ matrix.node-version }}
+            cache: "npm"
+      - run: npm ci
+      - run: npm test

.gitignore

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+out/
+node_modules
+.vscode-test/
+*.vsix
+.DS_Store
+vscode.d.ts
+.eslintcache
+test-project

.nvmrc

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+18

.prettierignore

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+.idea
+.vscode
+out
+LICENSE
+package.json
+package-lock.json
+*.md

.prettierrc.js

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+module.exports = {
+    printWidth: 120,
+    useTabs: false,
+    tabWidth: 4,
+    semi: true,
+    singleQuote: false,
+    trailingComma: "all",
+    bracketSpacing: true,
+    arrowParens: "avoid"
+};

.vscode/launch.json

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+{
+	"version": "0.2.0",
+	"configurations": [
+		{
+			"name": "Run Extension",
+			"type": "extensionHost",
+			"request": "launch",
+			"args": [
+				"--extensionDevelopmentPath=${workspaceFolder}",
+				"${workspaceFolder}/test-project"
+			],
+			"outFiles": [
+				"${workspaceFolder}/out/**/*.js"
+			],
+			"preLaunchTask": "npm: watch"
+		}
+	]
+}

.vscode/tasks.json

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+{
+	"version": "2.0.0",
+	"tasks": [
+        {
+            "label": "npm: watch",
+            "type": "npm",
+            "script": "watch",
+            "isBackground": true,
+            "presentation": {
+                "reveal": "never"
+            },
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
+        }
+    ]
+}

.vscodeignore

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+**/*
+!out/*.js
+!LICENSE
+!README.md

LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2015 YANDEX LLC
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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 # vscode-hermione
-Integration Hermione with VS Code
+
+This extension supports [Hermione][hermione] features in VS Code environment. Available features:
+
+- [Install Hermione](#install-hermione)
+- [Using the REPL mode][#using-the-repl-mode]
+
+## Install Hermione
+
+If you are not using hermione yet or starting a new testing project, the "Install Hermione" action from the command panel will help you get started.
+
+## Using the REPL mode
+
+Adds a keybinding (`cmd+shift+8` for mac and `ctrl+shift+8` for others) to run a dedicated section of code in the VSCode terminal. More info about [REPL mode][hermione-repl-mode]. You can overwrite this keybinding in [keyboard shortcuts][vscode-keyboard-shortcuts].
+
+[hermione]: https://github.com/gemini-testing/hermione
+[hermione-repl-mode]: https://github.com/gemini-testing/hermione?tab=readme-ov-file#repl-mode
+[vscode-keyboard-shortcuts]: https://code.visualstudio.com/docs/getstarted/keybindings

commitlint.config.js

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+module.exports = { extends: ["@commitlint/config-conventional"] };