dotfiles/config/shell/shenv

#!/usr/bin/env sh

#
# Shell common environment variables and functions (BusyBox compatible)
#

# Favourite commands

# And for the rest, see aliases
direnv JUNKHOME "$HOME/.cache/junkhome"

# SSH Agent


# If GPG agent is configured for SSH
if grep -q ^enable-ssh-support$ $GNUPGHOME/gpg-agent.conf 2> /dev/null
then
    # Load GPG agent
    unset SSH_AGENT_PID
    if [ "${gnupg_SSH_AUTH_SOCK_by:-0}" -ne $$ ]; then
      export SSH_AUTH_SOCK="$(gpgconf --list-dirs agent-ssh-socket)"
    fi

else
    # Start regular SSH agent if not already started
    SSH_ENV="$HOME/.ssh/agent"

    start_agent() {
        ssh-agent > "${SSH_ENV}"
        chmod 600 "${SSH_ENV}"
        . "${SSH_ENV}" > /dev/null
    }

    if [ -f "${SSH_ENV}" ]
    then
        . "${SSH_ENV}" > /dev/null
        if [ ! -d "/proc/${SSH_AGENT_PID}" ] || [ "$(cat "/proc/${SSH_AGENT_PID}/comm")" != "ssh-agent" ]
        then
            start_agent
        fi
    else
        start_agent
    fi
fi

# TODO Service sytem that works without systemd,
# and can stop processes on logout