local dev instructions in README under the leap directory

src/vs/editor/contrib/leap/browser/README.md

@@ -0,0 +1,68 @@
+# Leap
+Leap (Live Exploration of AI-Generated Code) is a Copilot-like tool that generates code completions within the current buffer.
+
+## How to develop Leap
+All of the Leap front-end-related code is under `./src/vs/editor/contrib/leap/browser`.
+
+There are few requirements before you could develop for Leap
+
+1. Node JS 16.14+
+2. Python 3 preferably 3.8.* or above
+3. npm
+4. yarn (this could be installed using npm)
+
+Once you satisfy the requierments please follow the next steps to setup your environment
+
+### Build and run via VS Code
+
+1. Open up a terminal, type `arch` to ensure that you are using a x86_64 architecture (attn: mac users)
+2. Type `yarn` or `yarn install` in the vscode directory
+3. Then open the vscode dircetory using your own VS Code local installation (you could download it online if you don't have one installed)
+4. In the `launch.json` under `.vscode` directory set the following env variables under `Launch VS Code Internal`
+
+- You may also configure these environment variables in your shell configuration (e.g., in `~/.profile`).
+- Alternatively, you may configure the variables in `./.env`, and declare in `inputs` in `.vscode/launch.json` the id's and keys of the configured variables. For example, if you have configured `PYTHON3=/usr/local/bin/python3` in `./.env`, then the `inputs` in `./vscode/launch.json` should be
+```
+	"inputs": [
+		{
+			"id": "envPYTHON3",
+			"type": "command",
+			"command": "extension.commandvariable.file.content",
+			"args": {
+			  "fileName": "${workspaceFolder}/.env",
+			  "key": "PYTHON3",
+			  "default": ""
+			}
+		}
+	]
+```
+and the environment variable configuration in `Launch VS Code Internal`, under `.vscode/launch.json`, should be
+```
+"env": {
+	"PYTHON3": "${input:envPYTHON3}"
+}
+```
+
+5. Then press `CTRL + SHIFT + B` or `CMD + SHIFT + B` on mac and run with `Launch VS Code Internal` to build the configuration
+
+If everything goes well you should be able run the build by pressing `F5`. Open a python file with extension .py, and you should see the projection boxes.
+
+### Build and run via the command line
+1. Open up a terminal, type `arch` to ensure that you are using a x86_64 architecture (attn: mac users)
+2. Type `yarn` or `yarn install` in the vscode directory
+3. Type `yarn compile` in the vscode directory to build from source
+4. Configure the following environment variables in your shell configuration
+```
+PYTHON3: path to your python3 binary
+RUNPY: absolute path to run.py under src directory
+IMGSUM: absolute path to img-summary.py under src directory
+LEAP_PROMPT: absolute path to implement_it.txt under src directory
+OPENAI_API_KEY: your OpenAI API key
+```
+
+- Alternatively, you can also pass the environment variable bindings when executing `run.sh` (see next step)
+5. Type `./run.sh` in the vscode directory to run Leap from the command line. You may additionally pass in environment variables at the beginning of the command, e.g., `OPENAI_API_KEY=my_awesome_key ./run.sh` if you want to override the variables defined in your shell profile.
+
+
+## How to invoke Leap
+In an opened Python file, press `CTRL + ENTER` (`CMD + ENTER` on mac) to see a side panel of code suggestions.