Todd Gamblin d763d6f738 gc: restrict to specific specs (#46790) ... `spack gc` has so far been a global or environment-specific thing. This adds the ability to restrict garbage collection to specific specs, e.g. if you *just* want to get rid of all your unused python installations, you could write: ```console spack gc python ``` - [x] add `constraint` arg to `spack gc` - [x] add a simple test Signed-off-by: Todd Gamblin <tgamblin@llnl.gov>		2024-10-04 17:43:10 -07:00
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spack	gc: restrict to specific specs (#46790)	2024-10-04 17:43:10 -07:00