Function show_modified

diff-lib.c:375–434

}

static int show_modified(struct rev_info *revs,
			 const struct cache_entry *old_entry,
			 const struct cache_entry *new_entry,
			 int report_missing,
			 int cached, int match_missing)
{
	unsigned int mode, oldmode;
	const struct object_id *oid;
	unsigned dirty_submodule = 0;

	assert(S_ISSPARSEDIR(old_entry->ce_mode) ==
	       S_ISSPARSEDIR(new_entry->ce_mode));

	/*
	 * If both are sparse directory entries, then expand the
	 * modifications to the file level. If only one was a sparse
	 * directory, then they appear as an add and delete instead of
	 * a modification.
	 */
	if (S_ISSPARSEDIR(new_entry->ce_mode)) {
		diff_tree_oid(&old_entry->oid, &new_entry->oid, new_entry->name, &revs->diffopt);
		return 0;
	}

	if (get_stat_data(new_entry, &oid, &mode, cached, match_missing,
			  &dirty_submodule, &revs->diffopt) < 0) {
		if (report_missing)
			diff_index_show_file(revs, "-", old_entry,
					     &old_entry->oid, 1, old_entry->ce_mode,
					     0);
		return -1;
	}

	if (revs->combine_merges && !cached &&
	    (!oideq(oid, &old_entry->oid) || !oideq(&old_entry->oid, &new_entry->oid))) {
		struct combine_diff_path *p;

		p = combine_diff_path_new(new_entry->name,
					  ce_namelen(new_entry),
					  mode, null_oid(the_hash_algo), 2);
		p->parent[0].status = DIFF_STATUS_MODIFIED;
		p->parent[0].mode = new_entry->ce_mode;
		oidcpy(&p->parent[0].oid, &new_entry->oid);
		p->parent[1].status = DIFF_STATUS_MODIFIED;
		p->parent[1].mode = old_entry->ce_mode;
		oidcpy(&p->parent[1].oid, &old_entry->oid);
		show_combined_diff(p, 2, revs);
		free(p);
		return 0;
	}

	oldmode = old_entry->ce_mode;
	if (mode != oldmode || !oideq(oid, &old_entry->oid) || dirty_submodule)
		diff_change(&revs->diffopt, oldmode, mode,
			    &old_entry->oid, oid, 1, !is_null_oid(oid),
			    old_entry->name, 0, dirty_submodule);
	else if (revs->diffopt.flags.find_copies_harder)
		diff_same(&revs->diffopt, mode, oid, old_entry->name);