On Fri, Jan 20, 2017 at 03:51:33PM -0800, Brandon Williams wrote:
> On 01/20, Junio C Hamano wrote:
> > Stefan Hajnoczi <stefanha@xxxxxxxxxx> writes:
> >
> > > If the tree contains a sub-directory then git-grep(1) output contains a
> > > colon character instead of a path separator:
> > >
> > > $ git grep malloc v2.9.3:t
> > > v2.9.3:t:test-lib.sh: setup_malloc_check () {
> > > $ git show v2.9.3:t:test-lib.sh
> > > fatal: Path 't:test-lib.sh' does not exist in 'v2.9.3'
> > >
> > > This patch attempts to use the correct delimiter:
> > >
> > > $ git grep malloc v2.9.3:t
> > > v2.9.3:t/test-lib.sh: setup_malloc_check () {
> > > $ git show v2.9.3:t/test-lib.sh
> > > (success)
> > >
> > > Signed-off-by: Stefan Hajnoczi <stefanha@xxxxxxxxxx>
> > > ---
> > > builtin/grep.c | 4 +++-
> > > t/t7810-grep.sh | 5 +++++
> > > 2 files changed, 8 insertions(+), 1 deletion(-)
> > >
> > > diff --git a/builtin/grep.c b/builtin/grep.c
> > > index 90a4f3d..7a7aab9 100644
> > > --- a/builtin/grep.c
> > > +++ b/builtin/grep.c
> > > @@ -494,7 +494,9 @@ static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec,
> > >
> > > /* Add a delimiter if there isn't one already */
> > > if (name[len - 1] != '/' && name[len - 1] != ':') {
> > > - strbuf_addch(&base, ':');
> > > + /* rev: or rev:path/ */
> > > + char delim = obj->type == OBJ_COMMIT ? ':' : '/';
> >
> > Why check the equality with commit, rather than un-equality with
> > tree? Wouldn't you want to treat $commit:path and $tag:path the
> > same way?
>
> I assume Stefan just grabbed my naive suggestion hence why it checks
> equality with a commit. So that's my fault :) Either of these may
> not be enough though, since if you do 'git grep malloc v2.9.3^{tree}'
> with this change the output prefix is 'v2.9.3^{tree}/' instead of the
> correct prefix 'v2.9.3^{tree}:'
I revisited this series again today and am coming to the conclusion that
forming output based on the user's rev is really hard to get right in
all cases. I don't have a good solution to the v2.9.3^{tree} problem.
Perhaps it's better to leave this than to merge code that doesn't work
correctly 100% of the time.
Stefan
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