Add support for reading paths from stdin

[thelastnode]

Fixes #43

[thelastnode]

You can run this without cloning using uv: uvx --with git+https://github.com/thelastnode/files-to-prompt.git@as/add-stdin-support files-to-prompt

Chains very nicely after something like llm cmd git command for file names changed in the last commit, NUL separated

Example to try for easy copy-pasting:

# files changed in the last commit git diff --name-only -z HEAD~1 HEAD | uvx --with git+https://github.com/thelastnode/files-to-prompt.git@as/add-stdin-support files-to-prompt --null

[simonw]

I wasn't sure if -0 or -z or --null would make better names, so I did a bit of research with Claude and I think your design here is good: https://gist.github.com/simonw/d7cec5fcbd23a50b620ea93e0f32ef71

[thelastnode]

Ah, yeah, sorry - should have mentioned that I copied the semantics from xargs (had a similar question with Copilot!)