On Sat, May 17, 2014 at 12:25:48AM -0700, Jeremiah Mahler wrote:
> > We have routines for reading directly into a strbuf, which eliminates
> > the need for this 1024-byte limit. We even have a wrapper that can make
> > this much shorter:
> >
> > struct strbuf buf = STRBUF_INIT;
> >
> > strbuf_read_file(&buf, arg, 128);
> > *signature = strbuf_detach(&buf, NULL);
> >
>
> Yes, that is much cleaner.
> The memory returned by strbuf_detach() will have to be freed as well.
In cases like this, we often let the memory leak. It's in a global that
stays valid through the whole program, so we just let the program's exit
clean it up.
> Having --signature-file override --signature seems simpler to implement.
> The signature variable has a default value which complicates
> determining whether it was set or not.
Yeah, the default value complicates it. I think you can handle that just
by moving the default to the main logic, like:
static const char *signature;
static const char *signature_file;
...
if (signature) {
if (signature_file)
die("you cannot specify both a signature and a signature-file");
/* otherwise, we already have the value */
} else if (signature_file) {
struct strbuf buf = STRBUF_INIT;
strbuf_read(&buf, signature_file, 128);
signature = strbuf_detach(&buf);
} else
signature = git_version_string;
and as a bonus, that keeps all of the logic together in one (fairly
readable) chain.
-Peff
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