crystal-lang
Update docker images for use with docker buildx
This includes support of aarch64 builds.
Additions of further platforms are limited by docker builder platform support.
Adds scripts/shallow-clone.sh to fetch a single reference (tag, sha1, branch) from a remote.
GC_VERSION has been bumped from 8.2.0 to 8.2.2
Libs are built with -O3 instead of -O2
What's the reason for shallow-clone.sh?
This should work with passing --branch and --depth 1 to the existing git clone commands. Note that --branch also takes tags. It just won't work with commit hashes, so I suppose that would be the only use case that requires this script instead of using vanilla git commands?
@straight-shoota I took heed of discussion in #52. I think having the option to use a commit in addition to other references is useful enough to warrant the script.
