Importing GnuPG Keys From an Existing .gnupg Folder

I recently installed elementaryOS on my home desktop, and I'm loving it so far as a daily driver. One hitch I had, though, and also the topic of this post, was importing my PGP private key that I use for signing my git commits (2DEC0103). This was a time where I was annoyed with my past self, as I had done a pretty ham-fisted job with backing up data from my last OS. I basically just shoveled files and folders onto another hard drive, and I didn't make any effort to export my private keys. I just threw the whole .gnupg folder in there! (I have other copies of my key, but they're inconvenient to access.)

I said this would be a short post, so let's just jump to the command.

gpg --export-secret-keys --homedir=/path/to/another/.gnupg | gpg --import

This command uses the flag --homedir, which was the crucial bit here. I spent a good half hour looking around for an exact solution to my conundrum, but ultimately the GnuPG documentation came through (imagine that 🤦‍♂️). This flag specifies an alternative .gnupg folder to use for that particular GnuPG process. In total, the command says to export all secret keys from /path/to/another/.gnupg and import them defaultly (probably to ~/.gnupg).

By the way, defaultly needs to be a word. I've had to use it a few times recently...