如题:查看哪个commit删除了指定文件
说明：使用 git log – file

# see the changes of a file, works even 
# if the file was deleted
git log -- [file_path]

# limit the output of Git log to the 
# last commit, i.e. the commit which delete the file
# -1 to see only the last commit
# use 2 to see the last 2 commits etc
git log -1 -- [file_path]

# include stat parameter to see
# some statics, e.g., how many files were 
# deleted
git log -1 --stat -- [file_path] 

参考:http://www.vogella.com/tutorials/Git/article.html#retrievefiles_finddeletedfile