makefile - 使 'make clean' 请求确认

Question

有没有办法让命令make clean需要用户确认？我错误地执行了它，现在我必须等待 6 个小时才能再次完成构建。
Makefile s 是由 cmake 创建的.

所需的工作流程:

> make clean
> [make] Are you sure you want to remove all the built files? [Y/N]
> N
> [make] Target 'make clean' not executed.

> make clean
> [make] Are you sure you want to remove all the built files? [Y/N]
> Y
> [make] Target 'make clean' executed.

Answer 1

我不熟悉 cmake，但对于 gnu make，一种可能的 hack 是:

clean: check_clean

check_clean:
    @echo -n "Are you sure? [y/N] " && read ans && [ $${ans:-N} = y ]

.PHONY: clean check_clean

如 check_clean失败(用户没有输入 y )，然后 make 将在执行清理之前退出并显示错误。