tree 1d48802e25f5ea148640ba746a2e230ef551a1ea
parent 28750a7d98ce5e23bac5c1d119109ded8e8aab73
author Russell Belfer <rb@github.com> 1384552974 -0800
committer Russell Belfer <rb@github.com> 1398101673 -0700

Add git_diff_commit and last-changed example

This adds a new diff API `git_diff_commit` which makes it easy to
generate a `git_diff` object that represents the changes in a given
commit.  It follows the core Git rules for considering changes in
a merge commit - i.e. if a file has an exact match in any parent
of the commit, then the file is considered unmodified by the merge.

This also adds a new example program "last-changed" which takes a
list of filenames and for each one displays the SHA of the last
commit that changed that file.