send-email and credential

From: D. Ben Knoble <ben.knoble@gmail.com>
Date: Aug 12, 2019, 22:00 UTC
Message-ID: <CALnO6CDFQA_QmR_2tczPNJiymfUxt8LUiF0HOvKJKreB_HmNuQ@mail.gmail.com>

Hello all,

I spent a frustrating hour today hoping to setup git-send-email with my gmail account. I've been able to confirm the following:

1. git credential works

    # git config credential.helper
    osxkeychain
    # git credential fill <<EOF
    protocol=smtp
    host=smtp.gmail.com
    EOF

outputs the correct username and password for my gmail account.

2. I (believe) I setup gitconfig properly:

    # git config --get-regexp sendemail
    sendemail.smtpserver smtp.gmail.com
    sendemail.smtpuser ben.knoble@gmail.com
    sendemail.smtpencryption tls
    sendemail.smtpserverport 587
    sendemail.multiedit true
    sendemail.annotate true

The strange behavior I'm seeing is that git-send-email

- prompted me via macOS for keychain access (expected). This happened
twice in a row, during one command invocation.
- prompted me at the terminal for my gmail password (shudders)
- stopped prompting me for messages send after that (all within the 15
minutes of the first two)

Can anyone confirm/explain what's going on? I've never tried to use git-credential or git-send-email before, so I'm new to those (but experienced in git).

D. Ben Knoble