Shim for pcregrep shadows system binary

[digitalcora]

I have a system install of PCRE tools that includes the pcregrep binary. When I installed the asdf-crystal plugin, suddenly I couldn't run pcregrep anymore, with this error:

asdf: No version set for command pcregrep
you might want to add one of the following in your .tool-versions file:

crystal 0.35.1

It seems that the shims for a plugin always exist in the PATH even if no version of the language is active, shadowing any system binaries of the same name.

I'm not sure why a plugin for Crystal should necessarily provide a pcregrep binary; I searched the code in this repo but there were no results. Maybe the language distribution itself happens to include a pcregrep, and the plugin is just adding shims for every binary rather than choosing a specific subset?