dotfiles-git/scripts/identity.sh

#!/bin/sh

identities="$HOME/.local/share/git/identities";

function add_identity() {
    uid_regex="([^\(]*)\s*(\((.*)\))?\s*<(.*)>";

    uid=$(gpg --with-colons -K $1 | awk -F: '$1=="uid" {print $10; exit}');

    if [ -z "$uid" ]; then
        echo "ERROR: found no gpg key matching this";
        exit 1;
    fi

    name=$(printf "$uid" | sed --regexp-extended -e "s/$uid_regex/\1/");
    email=$(printf "$uid" | sed --regexp-extended -e "s/$uid_regex/\4/");

    echo "using this identity:";
    echo "    name  = $name";
    echo "    email = $email";

    git config --local user.name "$name"
    git config --local user.email "$email"

    keyid=$(gpg -K --with-colon $1 | awk -F: '$12~/.*s.*/ {print $5; exit}');
    # TODO: if multiple found, bring up a dialog to select the right key

    if [ -z "$keyid" ]; then
        echo "WARNING: found no subkey with signing capabilities. No signing key will be set";
        git config --local --unset user.signingKey;
    else
        echo "    key   = $keyid";
        git config --local user.signingKey "$keyid";
    fi
}

case $1 in
    add)
        add_identity $2
    ;;
    *)
        echo "USAGE:";
        echo "    git identity <command>";
        exit 1;
    ;;
esac