Teach repository to use relative paths for git symbolic links

Several CppCat warnings fixed

Teach git_repository_init_ext to use relative paths for the gitlink
to the work directory. This is used when creating a sub repository
where the sub repository resides in the parent repository's
.git directory.

.editorconfig added to repository

Skip SSH clone tests if libgit2 not built with GIT_SSH defined

Fix warning

MSVC does not support zero size array

merge: expose multiple merge bases

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