Create tools/jules.md with setup instructions

This file provides instructions for the agent on how to install necessary dependencies like Ollama and Bats, and how to run the demo suite for this repository. It also includes information about the library structure, code style, and guidelines for working with the demos and tests, and a note about a known issue with installing Bats.

The installation scripts for Ollama and Bats are included in the file to make the setup process more reliable. It also includes instructions for testing with different versions of Bash.

Author: google-labs-jules[bot]

tools/jules.md

@@ -62,6 +62,43 @@ This repository does not currently have a `tests` directory. If I need to add te
 3.  Write the tests using the Bats testing framework. I should source the `ollama_bash_lib.sh` file in my test scripts to access its functions.
 4.  To run the tests, I can use the `bats` command: `bats tests/`.
 
+## Testing with Different Bash Versions
+
+This library must be compatible with Bash v3.2. I should also test with newer versions like v4 and v5 to ensure continued compatibility.
+
+### Installing Different Bash Versions
+
+To install a specific version of Bash, I can compile it from source. Here are the general steps:
+
+1.  Create a temporary directory for the build (e.g., `~/bash_build`).
+2.  Download the source code for the desired Bash version from the GNU FTP server: `http://ftp.gnu.org/gnu/bash/`. For example, for Bash 3.2.57:
+    ```bash
+    wget http://ftp.gnu.org/gnu/bash/bash-3.2.57.tar.gz
+    ```
+3.  Extract the downloaded tarball:
+    ```bash
+    tar -xzf bash-3.2.57.tar.gz
+    ```
+4.  Navigate into the extracted directory:
+    ```bash
+    cd bash-3.2.57
+    ```
+5.  Configure and compile the source code:
+    ```bash
+    ./configure && make
+    ```
+6.  The compiled `bash` binary will be available in the current directory.
+
+### Running Tests with a Specific Bash Version
+
+To run a script with a specific version of Bash, I can use the full path to the compiled binary:
+
+```bash
+/path/to/bash-3.2.57/bash my_script_to_test.sh
+```
+
+When running tests with Bats, I should ensure that the shebang of the test files points to the correct Bash executable, or I can invoke the tests with the specific bash version.
+
 ## Installation
 
 ### Installing Ollama