git-clean: add select by numbers interactive action
Draw a multiple choice menu using `list_and_choose` to select items to be deleted by numbers. User can input: * 1,5-7 : select 1,5,6,7 items to be deleted * * : select all items to be deleted * -* : unselect all, nothing will be deleted * : (empty) finish selecting, and return back to main menu Signed-off-by: Jiang Xin <worldhello.net@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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						Junio C Hamano
					
				
			
			
				
	
			
			
			
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					c1f1d24aa5
				
			@ -680,6 +680,43 @@ static int filter_by_patterns_cmd(void)
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	return 0;
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}
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static int select_by_numbers_cmd(void)
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{
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	struct menu_opts menu_opts;
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	struct menu_stuff menu_stuff;
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	struct string_list_item *items;
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	int *chosen;
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	int i, j;
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	menu_opts.header = NULL;
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	menu_opts.prompt = N_("Select items to delete");
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	menu_opts.flags = 0;
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	menu_stuff.type = MENU_STUFF_TYPE_STRING_LIST;
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	menu_stuff.stuff = &del_list;
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	menu_stuff.nr = del_list.nr;
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	chosen = list_and_choose(&menu_opts, &menu_stuff);
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	items = del_list.items;
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	for (i = 0, j = 0; i < del_list.nr; i++) {
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		if (i < chosen[j]) {
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			*(items[i].string) = '\0';
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		} else if (i == chosen[j]) {
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			/* delete selected item */
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			j++;
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			continue;
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		} else {
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			/* end of chosen (chosen[j] == EOF), won't delete */
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			*(items[i].string) = '\0';
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		}
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	}
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	string_list_remove_empty_items(&del_list, 0);
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	free(chosen);
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	return 0;
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}
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static int quit_cmd(void)
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{
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	string_list_clear(&del_list, 0);
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@ -693,6 +730,7 @@ static int help_cmd(void)
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	printf_ln(_(
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		    "clean               - start cleaning\n"
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		    "filter by pattern   - exclude items from deletion\n"
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		    "select by numbers   - select items to be deleted by numbers\n"
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		    "quit                - stop cleaning\n"
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		    "help                - this screen\n"
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		    "?                   - help for prompt selection"
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@ -709,6 +747,7 @@ static void interactive_main_loop(void)
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		struct menu_item menus[] = {
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			{'c', "clean",			0, clean_cmd},
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			{'f', "filter by pattern",	0, filter_by_patterns_cmd},
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			{'s', "select by numbers",	0, select_by_numbers_cmd},
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			{'q', "quit",			0, quit_cmd},
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			{'h', "help",			0, help_cmd},
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		};
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