This Gist is a bash Script that opens ssh-agent and help to avoid inserting private key every day works in Windows/Linux

.bash_profile

# Config Vars
private_key_path=/c/Users/myUser/my_private.key
dev_files_path=/d/my/dev/directory
key_expiration_ttl=28800

# Compute config filename with current date
current_date=$(date +"%Y%m%d")
SSH_ENV="$TEMP/environment_$current_date"

# Set up ssh-agent
function start_agent {
    echo "Initializing new SSH agent..."
    touch $SSH_ENV
    chmod 600 "${SSH_ENV}"
    /usr/bin/ssh-agent | sed 's/^echo/#echo/' >> "${SSH_ENV}"
    . "${SSH_ENV}" > /dev/null
    /usr/bin/ssh-add
}

# Source SSH settings, if applicable
if [ -f "${SSH_ENV}" ]; then
    . "${SSH_ENV}" > /dev/null
    kill -0 $SSH_AGENT_PID 2>/dev/null || {
        start_agent
    }
else
    start_agent
    ssh-add -t $key_expiration_ttl $private_key_path
fi

cd $dev_files_path