Use the Git JLL for git (via Git.jl; except on Macs)

[mortenpi]

We still use the system git on Mac to work around the linking problems. Setting GIT_TEMPLATE_DIR (which Git.jl does) is necessary to make sure that our git init and git clone invocations do not pick up user-specific Git hooks etc (which can fail the tests).

[KristofferC]

What's the size of this download?

[mortenpi]

You mean the JLL artifacts? Is there a way to easily get that info? Git_jll appears the be on the order of 40-50MB (which is actually more than I thought it would be). But it also brings along a bunch of dependencies:

(gitjll) pkg> st -m
      Status `~/Julia/test/gitjll/Manifest.toml`
  [d7ba0133] Git v1.2.1
  [692b3bcd] JLLWrappers v1.4.1
  [21216c6a] Preferences v1.3.0
  [2e619515] Expat_jll v2.4.8+0
  [78b55507] Gettext_jll v0.21.0+0
  [f8c6e375] Git_jll v2.34.1+0
  [94ce4f54] Libiconv_jll v1.16.1+1
  [458c3c95] OpenSSL_jll v1.1.16+0
  [02c8fc9c] XML2_jll v2.9.14+0

Any particular circumstance where you'd be concerned about the size of the download?