Re: [PATCH v3 14/25] setup.c: convert is_git_directory() to use strbuf

Duy Nguyen [off-list ref] writes:

On Thu, Feb 20, 2014 at 3:17 AM, Junio C Hamano [off-list ref] wrote:

quoted

quoted

+     strbuf_setlen(sb, len);
+     strbuf_add(sb, s, strlen(s));

I am not sure addstr_at() gives us a good abstraction, or at least
the name conveys what it does well not to confuse readers.

At first after only seeing its name, I would have expected that it
would splice the given string into an existing strbuf at the
location, not chopping the existing strbuf at the location and
appending.

I think I invented a few new strbuf_* in this series and this is one
of them. We have about ~14 other places in current code that do
similar pattern: set length back, then add something on top.

Yes, and you can count getline/getwholeline as a special case to
chomp to empty at the beginning.  I am not opposed to a helper to
give us an easy access to this common pattern.

It was just the name "addstr-at" did not sound, at least to me, what
it does, i.e. "replace with s from the pos to the end", which I
think is the same thing as a single-liner:

    strbuf_splice(sb, pos, sb->len - pos, s, strlen(s))