I know what you're thinking.

Wasn't April Fools a week ago?

I can assure you this Issue is no jest. We are having a problem with some tools that support Sapling where they don't work properly on systems with Steam Locomotive 🚂 (also called sl).

My question is: how can we distinguish between systems that have Sapling installed or 🚂 ?

ideas:

• sl --version shows "Sapling ..." 🚂 --version just shows the 🚂
• check man sl inconsistent, not portable with Windows
• set a timeout on commands invoking sl slow
• walk up the directory tree and look for .sl directory before invoking sl. Maybe, but this is slow
• check binary sizes. Sapling is 50Mb and 🚂 is 34k. We can simply check if sl > 1Mb

I like the last solution best, but would need to resolve symlinks, etc.

🤡