Now that go1.23 has been released, versions of Go older than go1.22 are
no longer supported.

This will allow us to use the go/version package, which was introduced
in Go 1.22.

This change will force modules that depend on golang.org/x/mod, notably
golang.org/x/tools, to update their Go version requirement to at least
go1.22 when they update their requirement on golang.org/x/mod to a
version after this commit.

For golang/go#63395

Change-Id: I6f6b5bb9e43b5f9945cc5bc8c398628436d2e739
Reviewed-on: https://go-review.googlesource.com/c/mod/+/605796
LUCI-TryBot-Result: Go LUCI <[email protected]>
Reviewed-by: Dmitri Shuralyov <[email protected]>
Reviewed-by: Dmitri Shuralyov <[email protected]>

The go verison was set to 1.22 but on Go versions 1.21.0 up to 1.21.10,
the toolchain upgrade logic will try to download the release "1.22",
which doesn't exist. Go 1.21.11+ incorporates CL 580217 (cherry-picked
in CL 583797) and will download 1.22.0, so it should be fine, but set
1.22.0 to allow the upgrade for users with older local toolchains.

Change-Id: I9aafaaa389ded3200b15fd3e7bb676610fa958d8
Reviewed-on: https://go-review.googlesource.com/c/mod/+/605935
Reviewed-by: Dmitri Shuralyov <[email protected]>
Commit-Queue: Michael Matloob <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>
Reviewed-by: Dmitri Shuralyov <[email protected]>

If git has safe.bareRepository=explicit set, operations on bare git
repos will fail unless --git-dir or GIT_DIR is set. Set GIT_DIR in the
parts of the zip test that use bare repos to allow the tests to pass in
those circumstances.

See CL 489915 for the change setting GIT_DIR for git operations on bare
repositories in cmd/go.

Change-Id: I1f8ae9ed2b687a58d533fa605ed9ad4b5cbb8549
Reviewed-on: https://go-review.googlesource.com/c/mod/+/605937
Auto-Submit: Michael Matloob <[email protected]>
Reviewed-by: Dmitri Shuralyov <[email protected]>
Reviewed-by: Dmitri Shuralyov <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>