luban which

Print the absolute exe path for a luban-managed alias.

luban which <alias>

Resolves the alias via <state>/installed.json and prints to stdout. Useful for debugging "which version of cmake am I running?" or for scripts.

Examples

luban which cmake
:: C:\Users\you\.local\share\luban\toolchains\cmake-4.3.2-x86_64\bin\cmake.exe

luban which clangd
:: C:\Users\you\.local\share\luban\toolchains\llvm-mingw-20260421-x86_64\bin\clangd.exe

luban which vcpkg
:: C:\Users\you\.local\share\luban\toolchains\vcpkg-2026.03.18-x86_64\vcpkg.exe

stdout has just the path (good for piping). Diagnostic info (which component provides this alias) goes to stderr.

Multi-component aliases

If multiple components provide the same alias (rare; e.g., if you have both mingit and a separate git overlay), the first match in installed.json wins, with a stderr warning listing all candidates.

Vs other tools

• where cmake (Windows cmd) — searches PATHEXT in current PATH; finds the shim (cmake.cmd or cmake.exe), not the underlying real binary
• which cmake (Git Bash) — same as above, just Unix-style
• luban which cmake — finds the real target exe via the registry, bypassing all shim layers

Use the right one for your need.