Function run_diff_index

diff-lib.c:621–655

}

void run_diff_index(struct rev_info *revs, unsigned int option)
{
	struct object_array_entry *ent;
	int cached = !!(option & DIFF_INDEX_CACHED);
	int merge_base = !!(option & DIFF_INDEX_MERGE_BASE);
	struct object_id oid;
	const char *name;
	char merge_base_hex[GIT_MAX_HEXSZ + 1];
	struct index_state *istate = revs->diffopt.repo->index;

	if (revs->pending.nr != 1)
		BUG("run_diff_index must be passed exactly one tree");

	trace_performance_enter();
	ent = revs->pending.objects;

	refresh_fsmonitor(istate);

	if (merge_base) {
		diff_get_merge_base(revs, &oid);
		name = oid_to_hex_r(merge_base_hex, &oid);
	} else {
		oidcpy(&oid, &ent->item->oid);
		name = ent->name;
	}

	if (diff_cache(revs, &oid, name, cached))
		exit(128);

	diff_set_mnemonic_prefix(&revs->diffopt, "c/", cached ? "i/" : "w/");
	diffcore_fix_diff_index();
	diffcore_std(&revs->diffopt);
	diff_flush(&revs->diffopt);
	trace_performance_leave("diff-index");
}

int do_diff_cache(const struct object_id *tree_oid, struct diff_options *opt)
{