References

https://github.com/AGWA/git-crypt

https://blog.francium.tech/secure-your-credentials-using-git-crypt-1ccbacc483c7

https://buddy.works/guides/git-crypt

TL;DR

COMMON COMMANDS

git-crypt init
git-crypt status
git-crypt lock

GPG COMMANDS

git-crypt add-gpg-user GPG_USER_ID
git-crypt unlock

SYMMETRIC KEY COMMANDS

git-crypt export-key OUTPUT_KEY_FILE
git-crypt unlock KEY_FILE

Installation

$ brew install git-crypt

Prepare Repository

$ cd <repository>

$ git crypt init
Generating key…

Create .gitattributes file

secretfile filter=git-crypt diff=git-crypt
*.key filter=git-crypt diff=git-crypt
secretdir/** filter=git-crypt diff=git-crypt
.gitattributes !filter !diff # prevent file from encrypted