This change introduces the file deprecated.go, which contains any
constants, functions, and types that are slated to be deprecated in the
next major release.
These symbols are deprecated because they refer to old spellings in
pre-1.0 libgit2. This also makes the build be done with the
`-DDEPRECATE_HARD` flag to avoid regressions.
This, together with
[gorelease](https://godoc.org/golang.org/x/exp/cmd/gorelease)[1] should
make releases safer going forward.
1: More information about how that works at
https://go.googlesource.com/exp/+/refs/heads/master/apidiff/README.md
(cherry picked from commit 137c05e802)
Some test repositories are not correctly removed after the tests
did run. Fix by introducing a function that is to be used for
cleaning up temporary test repositories.
When we create a commit and tell the library to update a ref, we need to
make sure to pass the current tip.
This is what we should have been doing in a function called
'upateReadme()' anyway. The existing code creates a new root commit,
which is not an update.