This is a command line application that is for managing a grocery list. It is a fun way to play with System.CommandLine and System.CommandLine.Rendering. This application uses System.CommandLine directly. System.CommandLine can be used to make createing command line applications even more simple than this example. Check out System.CommandLine.DragonFruit for a simple way to define arguments in your Main. You can check them all out here.
Should you really build a shopping list app from the command line? TBD
Persist the list!!!
.NET Core 3.1
All of the examples in this file should be executed from the src/CommandLine path
To get help and see all of the commands:
> dotnet run -- ShopCommandLine -h
Once you have chosen a command, you can view more detailed help like this:
> dotnet run -- ShopCommandLine add-item -h
Check out help for info on all of the commands. Below are examples using the add-item command.
Here is how you add one bag of coffee beans to your list:
> dotnet run -- ShopCommandLine add-item "coffee beans"
Need more?
> dotnet run -- ShopCommandLine add-item "coffee beans" --quantity 12
But wait, I thought a command could have an alias so I don't have to type?
> dotnet run -- ShopCommandLine add "coffee beans" -q 12
If I forget to use quotes, how do I know if it will parse correctly?
> dotnet run -- ShopCommandLine [parse] add coffee beans
[ ShopCommandLine [ add [ name <coffee> ] *[ --quantity <1> ] ] ] ???--> beans
Want to dig in more and find out about tools like debugging and tab completion, or figure out what all the symbols in the [parse] directive mean?
The Shopping List displays in color, but there are still some color issues that need to be ironed out between different terminal types and operating systems. Your mileage may vary.