On Wed, Aug 07, 2013 at 11:01:57AM -0700, Kyle J. McKay wrote:
> On Aug 7, 2013, at 09:00, Ramkumar Ramachandra wrote:
> > Hi,
> >
> > This is the difference between whatchanged and log:
> >
> > diff --git a/whatchanged b/log
> > index fa1b223..004d9aa 100644
> > --- a/tmp/whatchanged
> > +++ b/tmp/log
> > @@ -1,4 +1,4 @@
> > -int cmd_whatchanged(int argc, const char **argv, const char *prefix)
> > +int cmd_log(int argc, const char **argv, const char *prefix)
> > {
> >        struct rev_info rev;
> >        struct setup_revision_opt opt;
> > @@ -7,13 +7,10 @@ int cmd_whatchanged(int argc, const char **argv,
> > const char *prefix)
> >        git_config(git_log_config, NULL);
> >
> >        init_revisions(&rev, prefix);
> > -       rev.diff = 1;
> > -       rev.simplify_history = 0;
> > +       rev.always_show_header = 1;
> >        memset(&opt, 0, sizeof(opt));
> >        opt.def = "HEAD";
> >        opt.revarg_opt = REVARG_COMMITTISH;
> >        cmd_log_init(argc, argv, prefix, &rev, &opt);
> > -       if (!rev.diffopt.output_format)
> > -               rev.diffopt.output_format = DIFF_FORMAT_RAW;
> >        return cmd_log_walk(&rev);
> > }
> >
> > Should we remove it?
> 
> I use it all the time.  Is there some log option to get exactly the  
> same output?  It doesn't appear that there is.  The closest looks like  
> "log --name-status" but it omits the modes and hash values.

Is it not identical to "log --raw --no-merges"?

A quick test says "mostly", but whatchanged doesn't show empty commits
whereas log does seem to; e.g. in git.git:

    diff -u <(git whatchanged) <(git log --raw --no-merges)
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