ssh-agent.zsh

#!/usr/bin/env zsh
# macOS SSH Agent Configuration - Using launchctl approach

# Get system SSH_AUTH_SOCK from launchd
if [[ -z $SSH_AUTH_SOCK ]]; then
    export SSH_AUTH_SOCK=$(launchctl getenv SSH_AUTH_SOCK)
fi

if [[ -n $SSH_AUTH_SOCK ]]; then
    # Check agent status via ssh-add -l exit code:
    #   0 = agent running, keys loaded
    #   1 = agent running, no keys
    #   2 = cannot connect to agent
    command ssh-add -l &>/dev/null
    case $? in
        0) return 0 ;;
        1)
            command ssh-add --apple-load-keychain &>/dev/null && return 0
            print -u2 "[ssh-agent] Warning: Failed to load keys from keychain"
            return 0
            ;;
    esac
fi

# Fallback: Start custom agent if system one is not available
eval "$(command ssh-agent -t 4h)" || {
    print -u2 "[ssh-agent] Failed to start custom SSH agent"
    return 1
}

trap 'kill $SSH_AGENT_PID 2>/dev/null' EXIT

if ! command ssh-add --apple-load-keychain &>/dev/null && ! command ssh-add &>/dev/null; then
    print -u2 "[ssh-agent] Warning: Failed to load SSH keys"
fi