如何为Git存储库启用ident字符串？

#!/bin/sh

IDENT_USER="git"
IDENT_PORT="113"

if [ -n "$(which ident)" ]; then
    # Get the IP address of the remote client
    CLIENT_IP=$(echo $SSH_CONNECTION | cut -d ' ' -f 1)

    # Query the ident server for the user's identity
    IDENT_RESPONSE=$(echo | ident -q $IDENT_PORT $CLIENT_IP 2>/dev/null)

    # Extract the username from the ident response
    IDENT_USER=$(echo $IDENT_RESPONSE | cut -d ':' -f 2)
fi

# Update the Git repository with the user's identity
export GIT_COMMITTER_NAME="$IDENT_USER"
export GIT_COMMITTER_EMAIL="$IDENT_USER@example.com"

chmod +x post-update

service sshd restart

Host example.com
    IdentitiesOnly yes
    IdentityFile ~/.ssh/id_rsa