Re: [PATCH 2/2] reset: support the --stdin option

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Junio,

On Tue, 11 Oct 2016, Junio C Hamano wrote:

> Johannes Schindelin <johannes.schindelin@xxxxxx> writes:
> 
> > +	if (read_from_stdin) {
> > +		strbuf_getline_fn getline_fn = nul_term_line ?
> > +			strbuf_getline_nul : strbuf_getline_lf;
> > +		int flags = PATHSPEC_PREFER_FULL |
> > +			PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP;
> > +		struct strbuf buf = STRBUF_INIT;
> > +		struct strbuf unquoted = STRBUF_INIT;
> > +
> > +		if (patch_mode)
> > +			die(_("--stdin is incompatible with --patch"));
> > +
> > +		if (pathspec.nr)
> > +			die(_("--stdin is incompatible with path arguments"));
> > +
> > +		if (patch_mode)
> > +			flags |= PATHSPEC_PREFIX_ORIGIN;
> 
> Didn't we already die above under that mode?

Oh right. Copy/paste fail.

> > +		while (getline_fn(&buf, stdin) != EOF) {
> > +			if (!nul_term_line && buf.buf[0] == '"') {
> > +				strbuf_reset(&unquoted);
> > +				if (unquote_c_style(&unquoted, buf.buf, NULL))
> > +					die(_("line is badly quoted"));
> > +				strbuf_swap(&buf, &unquoted);
> > +			}
> > +			ALLOC_GROW(stdin_paths, stdin_nr + 1, stdin_alloc);
> > +			stdin_paths[stdin_nr++] = xstrdup(buf.buf);
> > +			strbuf_reset(&buf);
> > +		}
> > +		strbuf_release(&unquoted);
> > +		strbuf_release(&buf);
> > +
> > +		ALLOC_GROW(stdin_paths, stdin_nr + 1, stdin_alloc);
> > +		stdin_paths[stdin_nr++] = NULL;
> 
> It makes sense to collect, but...

It does, doesn't it? I really would have loved to start resetting right
away, but if the list were not sorted and traversed at the same time as
the tree-ish, the performance would just be suboptimal.

I think that is an important point and I adjusted the commit message
accordingly.

> > +		parse_pathspec(&pathspec, 0, flags, prefix,
> > +			       (const char **)stdin_paths);
> 
> ...letting them be used as if they are pathspec is wrong when
> stdin_paths[] contain wildcard, isn't it?  
> 
> I think flags |= PATHSPEC_LITERAL_PATH can help fixing it.  0/2 said
> this mimicks checkout-index and I think it should by not treating
> the input as wildcarded patterns (i.e. "echo '*.c' | reset --stdin"
> shouldn't be the way to reset all .c files --- that's something we
> would want to add to the test, I guess).

True. I adjust the flags accordingly now.

Thanks,
Dscho



[Index of Archives]     [Linux Kernel Development]     [Gcc Help]     [IETF Annouce]     [DCCP]     [Netdev]     [Networking]     [Security]     [V4L]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux SCSI]     [Fedora Users]