On 06/07/2016 07:29 PM, Junio C Hamano wrote:
> Michael Haggerty <mhag...@alum.mit.edu> writes:
>
>> If we don't have to strip trailing '/' from the submodule path, then
>> don't allocate and copy the submodule name.
>
> Makes sense.
>
>> int resolve_gitlink_ref(const char *path, const char *refname, unsigned
>> char *sha1)
>> {
>> - int len = strlen(path);
>> - struct strbuf submodule = STRBUF_INIT;
>> + size_t len, orig_len = strlen(path);
>> struct ref_store *refs;
>> int flags;
>>
>> - while (len && path[len-1] == '/')
>> - len--;
>> + for (len = orig_len; len && path[len - 1] == '/'; len--)
>> + ;
>> +
>> if (!len)
>> return -1;
>>
>> - strbuf_add(&submodule, path, len);
>> - refs = get_ref_store(submodule.buf);
>> - strbuf_release(&submodule);
>> + if (len == orig_len) {
>
> You can keep the original while (), without introducing orig_len,
> and check if path[len] is NUL, which would probably be an end result
> that is easier to read.
OK, I'll change it.
>> + refs = get_ref_store(path);
>> + } else {
>> + char *stripped = xmemdupz(path, len);
>> +
>> + refs = get_ref_store(stripped);
>> + free(stripped);
>
> An alternative might be to add get_ref_store_counted() that takes
> (path, len) instead of NUL-terminated path, which does not look too
> bad looking at the state after applying all 38 patches.
This slash-stripping code was introduced in 2007 (0ebde32c87) and it's
not my priority to improve it as part of this patch series.
Michael
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