This change allows the caller to set the `USE_CHROMIUM_ZLIB=ON`
environment variable to use the Chromium implementation of zlib when
building libgit2.

(cherry picked from commit c6da3b9)

Co-authored-by: lhchavez <lhchavez@lhchavez.com>

This commit marks this (Golang) version of git2go as being compatible
with libgit2 v1.3.0.

…sport (#836) (#842) (#848)

Fixes: #836

Changes:

* adding a weak bool param for Remote
* create a new remote in the smartTransportCallback incase one is not found

(cherry picked from commit 0e8009f)

Co-authored-by: Yashodhan Ghadge <codexetreme@users.noreply.github.com>
Co-authored-by: lhchavez <lhchavez@lhchavez.com>

…git2 (#852) (#854)

* Fix ssh commands used in go SmartSubtransport

Before the fix, the commands sent were of the form:

```
git-upload-pack "/bar/test-reponame"
```

This resulted in the git server returning error:
`error parsing command: invalid git command`

This change replaces the double quotes with single quotes:

```
git-upload-pack '/bar/test-reponame'
```

* Update ssh.go

Co-authored-by: lhchavez <lhchavez@lhchavez.com>
(cherry picked from commit 6cea7a7)

Co-authored-by: Sunny <darkowlzz@protonmail.com>
Co-authored-by: lhchavez <lhchavez@lhchavez.com>

(cherry picked from commit 533c82f)

Co-authored-by: Ignacio Taranto <ignacio_taranto@protonmail.com>

Added `stringer` annotations to `git.go` for `ErrorClass` and
`ErrorCode`. Added `generate` rule for `Makefile` to generate
string representations for these types (first building cgo files
in `_obj` dir to get C constants). Finally, updated `ci` actions
workflow to check that generated files are up to date.

Fixes: #543
(cherry picked from commit 5e35338)

Co-authored-by: Kirill <g4s8.public@gmail.com>

…) (#876)

This adds support for the GIT_OPT_ENABLE_FSYNC_GITDIR option in libgit2.

Co-authored-by: James Fargher <jfargher@gitlab.com>
(cherry picked from commit 1fcc9d8)

Co-authored-by: James Fargher <proglottis@gmail.com>

Analog to #623 but for push operations rather than fetch.

(cherry picked from commit 5eca48c)

Co-authored-by: Aurélien <6292584+au2001@users.noreply.github.com>

This is a release-specific change corresponding to #886

* rebase: Fix missing initialization of the repo pointer

While the `Rebase` structure has a pointer to the repository the rebase
is creatde in, this pointer isn't ever initialized. Fix this.

* rebase: Add wrapper for `git_rebase_inmemory_index()`

Add a new wrapper for `git_rebase_inmemory_index()`, which can be used
to retrieve the index for an in-memory rebase.

Co-authored-by: Patrick Steinhardt <psteinhardt@gitlab.com>
(cherry picked from commit e7d1b2b)

Co-authored-by: Patrick Steinhardt <ps@pks.im>

This add support for the parse, access, and transform functions for
refspec objects.

(cherry picked from commit eae0077)

Co-authored-by: William Bain <bain.william.a@gmail.com>