tree 76c239117cc35d15d10e6389064df8b9b3ec7cdc
parent 602972560a9c8700b1819430f409ce0cb8fbd58f
author Patrick Steinhardt <ps@pks.im> 1491381798 +0200
committer Patrick Steinhardt <ps@pks.im> 1491392971 +0200

refs: implement function to read references from file

Currently, we only provide functions to read references directly from a
repository's reference store via e.g. `git_reference_lookup`. But in
some cases, we may want to read files not connected to the current
repository, e.g. when looking up HEAD of connected work trees. This
commit implements `git_reference__read_head`, which will read out and
allocate a reference at an arbitrary path.