Did I Overcomplicate My Python Script for LLVM Setup?

Hey forums! I'm pretty new to Python—just about a week in—and I recently completed a big project. I wrote a script to automate the process of checking for, downloading, and setting up the latest LLVM source code, and I aimed to make it as reliable as possible. However, when I looked back, I realized that it's over 1700 lines long! This got me wondering: am I just over-engineering this, or does this task really require this level of complexity?

My script does a lot more than just a simple download and extraction. Here are some of the key features I've added:

1. Argument Parsing and Validation, processing multiple flags like --allow-rc and --sync-git.
2. Environment and Dependency Checks for Python version and necessary environment variables.
3. Cross-Platform File Locking to prevent interference between script runs for the same LLVM version.
4. Git Integration for cloning, pulling, and comparing local vs. remote states.
5. Advanced Tarball Handling that includes downloading the latest versions and verifying signatures.
6. Patching to apply user-specific patches.
7. Robust Error Handling and status messages with colored output.

I ended up needing a lot of extra code for things like error handling and accounting for platform differences (like what if a download fails?).

So my questions are:
1. Given these features, do you think the complexity is justified for a dependable automated tool, or is there a more straightforward way I overlooked?
2. Any tips or feedback on the structure, logic, or libraries I chose? Would you have approached it differently?

I'm pretty proud of what I built but also feeling a bit ridiculous about the length of the script. Let me know your thoughts! Here's a link to my script.