watch is a program that looks for a change in a directory and sub-directories to then execute a list of given commands. It also executes commands when one or multiple keys are pressed.

Execute this command to install this program:

cargo install --path .

To create a watch.json file in a directory, type this command:

watch init

{
    "to_watch": {
        "root": [
            "src/"
        ],
        "format": [
            ".rs"
        ],
        "commands":[
            "cargo build",
            "echo Compilation finished for !{$}!"
        ]
    },
    "key_events": [
        {
            "keys": ["LAlt", "LShift"],
            "commands": [
                "start cargo run"
            ]
        }
    ]
}

As seen on the code on top, you can add key events to the config file, the keys in the keys list are named how they are in the device_query library as they are translated from a string to the key.

As seen also on the code on top, the "!{$}" will put the name of the file that has been recently changed in the command.