Zanie Blue c335dc5e5d Add a trampoline variant that just executes python (#8637) ... Currently, our trampoline is used to convert `<command> [args]` to `python <command> [args]` for script entrypoints installed into virtual environments. For #8458, it'd be nice to convert a shim `python3.12 [args]` to `python [args]`. Here, we modify the trampolines to support this use-case. The only change we really need here is to avoid injecting `<command>` into the child process. We change the "magic number" at the end of the trampoline executables from `UVUV` to `UVSC` and `UVPY` which define "script" and "python" variants to the trampoline. We then omit the `<command>` injection in the latter case. We also omit writing the zip script payload. To support construction of the new variant, a new `uv-trampoline-builder` crate is introduced — this avoids requirements on `uv-install-wheel` in future work. I also use `uv-trampoline-builder` to consolidate some of the test setup for `uv-trampoline`. There should be no backwards compatibility concerns, since trampolines are fully self-referential. I rebased to fix the commits at the end, as this took many iterations to get working via CI. This should roughly be reviewable by commit if you prefer.		2024-10-29 09:21:15 -05:00
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src	Add a trampoline variant that just executes python (#8637)	2024-10-29 09:21:15 -05:00
Cargo.toml	Add a trampoline variant that just executes python (#8637)	2024-10-29 09:21:15 -05:00