If the remote does not advertise HEAD, then it is unborn and we cannot
checkout that branch. Handle it the same way as an empty repo.

When cloning, we may be asking for a particular branch or subset of
branches. Make sure we test for that.

Add tests for the case when there are no branches on the remote and when
HEAD is detached but has the id of a non-branch. In both of these cases,
we should return ENOTFOUND.

A repository can have any number of references which we're not
interested in such as notes or tags. For the default branch calculation
we only care about branches. Make the decision about the number of
branches rather than the number of refs in general.

If we do not have a HEAD ref in the heads, we already know there is no
default branch. Return immedately.

Assert what we already do, so as to notice changes.

This was added to avoid the remote's default branch to be considered to
the be notes one which the first network test leaves behind.

Fix ahead-behind results

When we see PARENT1, it means there is a local commit and thus we are
ahead. Likewise, seeing PARENT2 means that the upstream branch has a
commit and we are one more behind.

The logic is currently reversed. Correct it.

This fixes #2501.

The logic was reversed. I have checked manually each pair with git and
adjusted the expectation to what git status prints.

winhttp: Prevent swallowing of url parsing error

Set timeout on remote (Add timeout for WinHttpReceiveResponse #2147)

Allow to override default ssh transport_cb - in order to allow third party ssh transports

Signed-off-by: Sven Strickroth <email@cs-ware.de>

Set timeout on remote (WinHTTP) should return error in case of failure. Connection timeout set to 1 minute. Read/Write timeout remains set to infinite #2147

Refactor git_cache to use an rwlock

This significantly reduces contention when many threads are trying to
read from the cache simultaneously.

Fix bugs with negative ignores inside an ignored parent directory

add Julia to the language bindings list

pack: return the correct final offset

W/o this patch it is not possible to have a third party ssh transport_cb if GIT_SSH is disabled or a third party transport_cb which has a higher priority than the default one.

Signed-off-by: Sven Strickroth <email@cs-ware.de>

The callers of git_packfile_unpack() expect the obj_offset argument to
be set to the beginning of the next object. We were mistakenly returning
the the offset of the object's data, which causes the CRC function to
try to use the wrong offset.

Set obj_offset to curpos instead of elem->offset to point to the next
element and bring back expected behaviour.

merge base: Correctly raise an error if a non-commit object is passed.

Allow mkdir helper to skip parent errors

Check if the refspec matches before transforming

Our mkdir helper was failing is a parent directory was not
accessible even if the child directory could be created.
This changes the helper to keep trying child directories
even when the parent is unwritable.

Export `git_oid_tostr_s` instead of `_allocfmt`

This reverts commit 0dc54e14.

We don't really use this at all, and it breaks packaging in Windows.

The old `allocfmt` is of no use to callers, as they are not able to free
the returned buffer. Export a new API that returns a static string that
doesn't need to be freed.