Installing homebrew and echo password

[RHamers]

Hi everyone,

I have a question regarding installing homebrew with the following command:
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

This script prompts the user for his (admin)password but I want to automate this since I want to automatically install homebrew as a dependency to my software. (I'm using C#+Mono and I start a process through System.Diagnostics.Process)

How can I send my password through STDIN (or something) to the prompt of the script. "
I tried several commands like:
/bin/bash -c "echo {password} | $(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh) "
or
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh) <<< {password}"
or
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh) <<STDIN\n{password}\nSTDIN\n"
or
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)" <<STDIN\n{password}\nSTDIN\n

But the above commands do not work, it still prompts me for my password.
Could anyone help me with this? 👍

Thanks

[reitermarkus]

You can use SUDO_ASKPASS for this.

[jonchang]

Look at man sudo or https://www.sudo.ws/man/1.8.31/sudo.man.html#A for the askpass option.

[RHamers]

Ok, thanks :) I will update the thread once I get it working.

[RHamers]

Hey,

I have fixed it yet it feels like one big hack to me, let me explain:
*note this is in C# which explains the string interpolation.

I first add my sudo password to the macos keychain with the following command
string addPasswordCommand = $"echo {osPassword} | sudo -S security add-generic-password -a {GetOsUserName()} -s {environment} -w {osPassword}";

Next I run:

string testCommand = $"SUDO_ASKPASS=$(security find-generic-password -a {GetOsUserName()} -s {environment} -w) /bin/bash -c \"echo \"{osPassword}\" | sudo -S echo \"hi\"\r$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)\"";

and lastly, I simulate the user pressing on his keyboard to confirm homebrew install by running
\r

It works but it still does not feel right. ( but I can start refactoring now)

Thanks

[Cyberbeni]

export CI=true and you can skip the enter pressing
You should also use the -k option for sudo, and maybe also add -p ""

[RHamers]

Thx, I will look into it soon and update the thread accordingly ;)