Update dependency libgit2/libgit2 to v1.7.0

This MR contains the following updates:

Package	Type	Update	Change
libgit2/libgit2	ironbank-github	minor	v1.6.4 -> v1.7.0

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Release Notes

libgit2/libgit2

v1.7.0: libgit2 v1.7.0

Compare Source

This is release v1.7.0, "Kleine Raupe Nimmersatt". This release adds shallow clone support, completes the experimental SHA256 support, adds Schannel support for Windows, and includes many other newj features and bugfixes.

Major changes

• Shallow clone support libgit2 now supports shallow clone and shallow repositories, thanks to a significant investment from many community members -- hundreds of commits by many contributors.

  • Shallow (#​6396) with some fixes from review by @​ethomson in https://github.com/libgit2/libgit2/pull/6557
  • Shallow Clone Support by @​lya001 in https://github.com/libgit2/libgit2/pull/6396
  • Shallow support v2 by @​pks-t in https://github.com/libgit2/libgit2/pull/5254

• SHA256 support libgit2 should now support SHA256 repositories using the extensions.objectFormat configuration option when the library is built with EXPERIMENTAL_SHA256=ON. Users are encouraged to begin testing their applications with this option and provide bug reports and feedback. This is a breaking API change; SHA256 support will be enabled by default in libgit2 v2.0.

  • sha256: less hardcoded SHA1 types and lengths by @​ethomson in https://github.com/libgit2/libgit2/pull/6549
  • Support SHA256 in git_repository_wrap_odb by @​ethomson in https://github.com/libgit2/libgit2/pull/6556

• Schannel and SSPI for Windows libgit2 now supports the Windows Schannel and SSPI APIs for HTTPS support on Windows, when configured with USE_HTTPS=Schannel. Setting this option will not use the existing WinHTTP support, but will use libgit2's standard HTTP client stack with Windows TLS primitives. Windows users are encouraged to begin testing their applications with this option and provide bug reports and feedback. This will be enabled by default in a future version of libgit2.

  • Introduce Schannel and SSPI for Windows by @​ethomson in https://github.com/libgit2/libgit2/pull/6533

Breaking changes

• Simplify custom pluggable allocator (System API / ABI breaking change) The git_allocator structure (configurable by the GIT_OPT_SET_ALLOCATOR option) now only contains gmalloc, grealloc and gfree members. This simplifies both the work needed by an implementer and allows more flexibility and correctness in libgit2 itself, especially during out-of-memory situations and errors during bootstrapping.

  • tests: add allocator with limited number of bytes by @​ethomson in https://github.com/libgit2/libgit2/pull/6563

Other changes

New features

• repo: honor environment variables for more scenarios by @​ethomson in https://github.com/libgit2/libgit2/pull/6544
• Introduce timeouts on sockets by @​ethomson in https://github.com/libgit2/libgit2/pull/6535

Performance improvements

• midx: do not try to look at every object in the index by @​carlosmn in https://github.com/libgit2/libgit2/pull/6585
• Partial fix for #​6532: insert-by-date order. by @​arroz in https://github.com/libgit2/libgit2/pull/6539

Bug fixes

• repo: don't allow repeated extensions by @​ethomson in https://github.com/libgit2/libgit2/pull/6505
• config: return GIT_ENOTFOUND for missing programdata by @​ethomson in https://github.com/libgit2/libgit2/pull/6547
• Fix missing oid type for "fake" repositories by @​oreiche in https://github.com/libgit2/libgit2/pull/6554
• Thread-local storage: handle failure cases by @​ethomson in https://github.com/libgit2/libgit2/pull/5722
• midx: allow unknown chunk ids in multi-pack index files by @​carlosmn in https://github.com/libgit2/libgit2/pull/6583
• pack: cast the number of objects to size_t by @​carlosmn in https://github.com/libgit2/libgit2/pull/6584
• Fixes #​6344: git_branch_move now renames the reflog instead of deleting. by @​arroz in https://github.com/libgit2/libgit2/pull/6345
• #​6576 git_diff_index_to_workdir reverse now loads untracked content by @​arroz in https://github.com/libgit2/libgit2/pull/6577

Build and CI improvements

• meta: the main branch is now v1.7.0 by @​ethomson in https://github.com/libgit2/libgit2/pull/6516
• xdiff: move xdiff to 'deps' by @​ethomson in https://github.com/libgit2/libgit2/pull/6482
• util: detect all possible qsort_r and qsort_s variants by @​DimitryAndric in https://github.com/libgit2/libgit2/pull/6555
• Work around -Werror problems when detecting qsort variants by @​DimitryAndric in https://github.com/libgit2/libgit2/pull/6558
• actions: simplify execution with composite action by @​ethomson in https://github.com/libgit2/libgit2/pull/6488
• CMake: Search for ssh2 instead of libssh2. by @​Faless in https://github.com/libgit2/libgit2/pull/6586

Documentation improvements

• docs: fix IRC server from freenode to libera by @​vincenzopalazzo in https://github.com/libgit2/libgit2/pull/6590

Dependency upgrades

• Update xdiff to git 2.40.1's version by @​ethomson in https://github.com/libgit2/libgit2/pull/6561
• deps: update pcre to 8.45 by @​ethomson in https://github.com/libgit2/libgit2/pull/6593

New Contributors

• @​oreiche made their first contribution in https://github.com/libgit2/libgit2/pull/6554
• @​DimitryAndric made their first contribution in https://github.com/libgit2/libgit2/pull/6555
• @​vincenzopalazzo made their first contribution in https://github.com/libgit2/libgit2/pull/6590
• @​Faless made their first contribution in https://github.com/libgit2/libgit2/pull/6586

Full Changelog: https://github.com/libgit2/libgit2/compare/v1.6.3...v1.7.0

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