Jeff King <peff@xxxxxxxx> writes:
> On Wed, Jul 13, 2016 at 09:21:37AM +0200, Matthieu Moy wrote:
>
>> > +static int prepare_include_condition_pattern(struct strbuf *pat)
>> > +{
>> > + int prefix = 0;
>> > +
>> > + /* TODO: maybe support ~user/ too */
>> > + if (pat->buf[0] == '~' && is_dir_sep(pat->buf[1])) {
>> > + struct strbuf path = STRBUF_INIT;
>> > + const char *home = getenv("HOME");
>> > +
>> > + if (!home)
>> > + return error(_("$HOME is not defined"));
>>
>> expand_user_path in path.c seems to do the same as you're doing (but
>> does deal with ~user). Any reason not to use it?
>
> I had a similar question, which Duy answered in:
>
> http://article.gmane.org/gmane.comp.version-control.git/298528
>
> It does feel pretty hacky, though (especially for a case that seems
> unlikely to come up: people having wildcard patterns in the name of
> their home directory).
Ah, OK. Then I'd suggest at least an improvement in the comment:
/*
- * perform literal matching on the prefix part so that
- * any wildcard character in it can't create side effects.
+ * perform literal matching on the expanded prefix part
+ * so that any wildcard character in it (e.g in the
+ * expansion of ~) can't create side effects.
*/
I would also rename the variable prefix -> expanded_prefix. As-is, the
code is really hard to understand IMHO.
--
Matthieu Moy
http://www-verimag.imag.fr/~moy/
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