make sail script publishable

[mhmdomer]

This PR will allow developers to modify or add commands to the sail script.
If you decided to add a new custom service to the docker-compose.yml file and expose a command for this service via sail, you may add the command to the published sail script at the root of your app. For example, if you added a mongo service to your app you can make the mongo shell available by adding:

.
.
elif [ "$1" == "mongo" ]; then

    if [ "$EXEC" == "yes" ]; then
        docker-compose exec mongo mongo
    else
        sail_is_not_running
    fi
elif
.
.

Currently, the script will be published by executing sail artisan sail:publish command, I was wondering if it should be published via its own command like sail artisan sail:publish-script so that developers can publish it on demand.

Also, The user doesn't have to register any alias command, the script will check if there is a file called sail at the root of the app, then it will execute it, otherwise, it will execute the original script in ./vendor/bin/sail.

[finagin]

@mhmdomer, I propose PR in your fork with append separate groups for publish like sail-docker and sail-bin

# publish only docker files
artisan vendor:publish --tag=sail-docker

# publish only bash-script
artisan vendor:publish --tag=sail-bin

# publish both
artisan vendor:publish --tag=sail

[mhmdomer]

@mhmdomer, I propose PR in your fork with append separate groups for publish like sail-docker and sail-bin

# publish only docker files
artisan vendor:publish --tag=sail-docker

# publish only bash-script
artisan vendor:publish --tag=sail-bin

# publish both
artisan vendor:publish --tag=sail

Thanks @finagin, I think it will add more options to selectively publish desired files while keeping the old behavior.

[finagin]

Without this lines if you use alias sail='bash vendor/bin/sail' run not published script

[mhmdomer]

Without this lines if you use alias sail='bash vendor/bin/sail' run not published script

Yes, now you have to run './sail' to execute the published script.