Commit f201d613a80f7ad6f54d90eb7a7a0d8b8c72676b

Russell Belfer 2012-04-13T10:33:14

Add git_reference_lookup_oid and lookup_resolved Adds a new public reference function `git_reference_lookup_oid` that directly resolved a reference name to an OID without returning the intermediate `git_reference` object (hence, no free needed). Internally, this adds a `git_reference_lookup_resolved` function that combines looking up and resolving a reference. This allows us to be more efficient with memory reallocation. The existing `git_reference_lookup` and `git_reference_resolve` are reimplmented on top of the new utility and a few places in the code are changed to use one of the two new functions.