IntelliJ fails to commit changes when attempting to sign commit (GPG)

Question

I have been working on setting up my development environment, so when I create a commit it is automatically signed by GPG. I followed Githubs documentation on the matter here: https://help.github.com/categories/gpg/.

I am attempting to use IntelliJ's git interface to create a commit, but it always fails with this error.

gpg: cannot open `/dev/tty`: Device not configured
error: gpg failed to sign the data
fatal: failed to write commit object

I do not encounter this error when using git directly from my terminal, I discovered an issue where someone had a similar problem (with Source Tree) and mentioned something about the GUI not popping up to enter passphrase. I'm assuming this is similar to that issue.

How can I go about fixing this issue?

Answer 1

Configure GPG to allow it to be called from a program remotely by adding the following to your gpg.conf:

no-tty

Answer 2

You need to add the following options in your gpg.conf

no-tty

use-agent

Answer 3

I discovered the cause of this yesterday, and figured I'd post an answer for anyone else who might look at this. It was caused because when it tried to sign the commit, it wanted to open a window asking for my passphrase.

This was the tutorial I followed (specifically the bottom part so it wouldn't ask me in the future for the passphrase). https://github.com/pstadler/keybase-gpg-github

Note that the tutorial is for macOS only.