Re: [PATCH v4 1/4] rebase: start implementing it as a builtin

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Hi,

On Mon, Jul 9, 2018 at 2:21 PM Eric Sunshine <sunshine@xxxxxxxxxxxxxx> wrote:
>
> On Mon, Jul 9, 2018 at 3:59 AM Andrei Rybak <rybak.a.v@xxxxxxxxx> wrote:
> > On 2018-07-08 20:01, Pratik Karki wrote:
> > > +static int use_builtin_rebase(void)
> > > +{
> > > +     struct child_process cp = CHILD_PROCESS_INIT;
> > > +     struct strbuf out = STRBUF_INIT;
> > > +     int ret;
> > > +
> > > +     argv_array_pushl(&cp.args,
> > > +                      "config", "--bool", "rebase.usebuiltin", NULL);
> > > +     cp.git_cmd = 1;
> > > +     if (capture_command(&cp, &out, 6))
> > > +             return 0;
> >
> > Does strbuf out leak on return here?
>
> Good catch. This _is_ a potential leak. Here is an excerpt from the
> documentation of pipe_command(), which is called by capture_command():
>
>     Any output collected in the buffers is kept even if the
>     command returns a non-zero exit.
>
> So, yes, this needs a strbuf_release() before returning.

Hmm. This seems to be a problem. Thanks for reviewing.



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