I get this terminal error about every three to six months: error: gpg failed to sign the data fatal: failed to write commit object When I see it I think “I really should have written down the problem last time”. So here we are, ready and willing to document. The issue for me is that I set short expiration times for my gpg keys. To verify my key is expired I run: $ gpg -K --keyid-format SHORT and get results like below:

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Brian Pearce

Software Engineer, Endurance Cyclist,
Rubiest, and Rustacean

Software Engineer

Barcelona, Spain