Re: How to tell if a file was renamed between two commits

> Ron Garret <ron1@flownet.com> wrote:
> > I'm trying to write a little utility that will extract all the revisions 
> > of a particular file.  I start with a git rev-list HEAD -- filename, get 
> > the tree objects with git cat-file commit, the file objects with git 
> > ls-tree, and finally the file contents themselves with git cat-file 
> > blob.  It works, except in the case where the file name was changed.  
> > git rev-list is smart enough to track those name changes, but my little 
> > revision tracker isn't.  It dies when suddenly there is no file with the 
> > right name in the tree.
> > 
> > So... is there an easy way to work around this?  Is there a way to get, 
> > say, rev-list to tell me when the file it is tracking changed names?  Or 
> > a git-diff incantation?  I just need something that will tell me given 
> > two commits and a file name whether the file was renamed between those 
> > two commits and if so what its new name is.  There must be an easy way 
> > to do this, but I can't figure out what it is.
> 
> Maybe use the -M flag to git log, or the --follow flag to
> log/rev-list?