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I'm going to anticipate a "problem" we are going to encounter. For my use case, I would like the user to press Q or Enter to confirm or not that she wants to save a weak password. From what I understood, it's not straightforward to do this with the same io::stdin we used before because of the line-buffered nature of most terminals. Meaning, we have to wait for the user to press Enter to read the input. So, we are going to use the crossterm crate that allow us to read single chars from user's input. We can add it with: cargo add crossterm
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In this article, we added quite a lot of functionality for our little application. We can now add passwords in three different ways and alert our user if their password is too weak. As always, feel free to tell me if some of this code could be improved, or if you would like to see some functionalities for this password manager. The full code can be found on github
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Now that we have different options to save a new password. We need to implement the logic for each. We'll start by generating a new password. Now, there are several ways to do this. You could use a existing crate that do it for you or build something yourself. I chose to use the rand crate. This is crate is a general-purpose random number generator. It will give us the foundation to randomly generate a password. I'd like to keep some freedom to custom the functionality later on, instead of relying on an existing crate. But feel free to use an existing crate 😉
