Fish config for auto-attaching to tmux session

config.fish

if status --is-login
    set PPID (echo (ps --pid %self -o ppid --no-headers) | xargs)
    if ps --pid $PPID | grep ssh
        tmux has-session -t remote; and tmux attach-session -t remote; or tmux new-session -s remote; and kill %self                                                                
        echo "tmux failed to start; using plain fish shell"
    end
end

cd /opt/

function supctl
    # highlight service names in purple
    # highlight RUNNING services in green, all others in red
    # highlight services with >1 day uptimes in blue (considered stable)
    # highlight services with <5min uptimes in flashing yellow (considered unstable)
    # highlight success log messages in green
    set subcommand $argv[1] "status"
    supervisorctl $subcommand[1] $argv[2..-1] \
        | env GREP_COLORS='ms=01;35' grep -E --color=always '^[a-Z0-9:-]+|$' \
        | env GREP_COLORS='ms=01;32' grep -E --color=always 'RUNNING|$' \
        | env GREP_COLORS='ms=01,05' grep -E --color=always 'STARTING|STOPPED|STOPPING|BACKOFF|EXITED|FATAL|UNKNOWN|$' \
        | env GREP_COLORS='ms=01;36' grep -E --color=always 'uptime .+ day.?,|$' \
        | env GREP_COLORS='ms=05;33' grep -E --color=always 'uptime 0:0[0-5]:[0-9][0-9]|$' \
        | env GREP_COLORS='ms=01;32' grep -E --color=always 'success|$'
end