A few libgit2 improvements/fixes

[yuyichao]

• 1.7.0 support.
• A few more operations on remote.
• Getting commit parents.

[giordano]

If you change

julia/stdlib/LibGit2_jll/Project.toml

Line 3 in ad27e67

version = "1.6.4+0"

to

version = "1.7.1+0"

and then run make -j -f contrib/refresh_checksums.mk libgit2 (I hope I got the name right) you can actually test the changes with the latest build of libgit2 we have in Yggdrasil. You'll also need to update deps/libgit2.version accordingly.

[yuyichao]

I did the test locally on 1.7.1 already. Do you want me to run the test on the CI?

I haven't really done any extensive testing of the compatibility, just that tests passed and the functions I need myself works so I wasn't going to just bump the default version for everyone else...

[giordano]

Yes, I think it'd be good to also upgrade the version of libgit2 we ship it julia, since we have the new build

[yuyichao]

OK, sure. Added a new commit to bump the default version after roughly going through the libgit2 document to check if any other functions have any ABI breakage.

[KristofferC]

Seems to actually crash in LibGit2 tests on 32-bit windows:

From worker 16:
--
  | From worker 16:	Please submit a bug report with steps to reproduce this fault, and any error messages that follow (in their entirety). Thanks.
  | From worker 16:	Exception: EXCEPTION_ACCESS_VIOLATION at 0x8060004 -- unknown function (ip: 08060004)
  | From worker 16:	in expression starting at C:\buildkite-agent\builds\win2k22-amdci6-6\julialang\julia-master\julia-91d283606e\share\julia\stdlib\v1.11\LibGit2\test\online-tests.jl:22
  | From worker 16:	unknown function (ip: 08060004)
  | From worker 16:	git__clone at C:\buildkite-agent\builds\win2k22-amdci6-6\julialang\julia-master\julia-91d283606e\bin\libgit2.DLL (unknown line)
  | From worker 16:	git_clone at C:\buildkite-agent\builds\win2k22-amdci6-6\julialang\julia-master\julia-91d283606e\bin\libgit2.DLL (unknown line)
  | From worker 16:	macro expansion at C:\workdir\usr\share\julia\stdlib\v1.11\LibGit2\src\error.jl:109 [inlined]
  | From worker 16:	clone at C:\workdir\usr\share\julia\stdlib\v1.11\LibGit2\src\repository.jl:459
  | From worker 16:	#clone#123 at C:\workdir\usr\share\julia\stdlib\v1.11\LibGit2\src\LibGit2.jl:583
  | From worker 16:	clone at C:\workdir\usr\share\julia\stdlib\v1.11\LibGit2\src\LibGit2.jl:556 [inlined]
  | From worker 16:	macro expansion at C:\buildkite-agent\builds\win2k22-amdci6-6\julialang\julia-master\julia-91d283606e\share\julia\stdlib\v1.11\LibGit2\test\online-tests.jl:29 [inlined]
  | From worker 16:	macro expansion at C:\workdir\usr\share\julia\stdlib\v1.11\Test\src\Test.jl:1599 [inlined]
  | From worker 16:	macro expansion at C:\buildkite-agent\builds\win2k22-amdci6-6\julialang\julia-master\julia-91d283606e\share\julia\stdlib\v1.11\LibGit2\test\online-tests.jl:27 [inlined]
  | From worker 16:	macro expansion at C:\workdir\usr\share\julia\stdlib\v1.11\Test\src\Test.jl:1599 [inlined]
  | From worker 16:	#1 at C:\buildkite-agent\builds\win2k22-amdci6-6\julialang\julia-master\julia-91d283606e\share\julia\stdlib\v1.11\LibGit2\test\online-tests.jl:26

[yuyichao]

There was indeed a missing ABI breaking change. The fetch options struct got an extra member depth.

I looked through the diff between the 1.7.0 and 1.6.4 header this time and I'm fairly sure there isn't anything missing anymore. OTOH, it seems that some of the constants (enums) aren't up to date. Most of the ones that are changed this time have missing updates from previous versions. I didn't check the enum values that didn't change in this version..

[yuyichao]

Updated for #51294