#!/usr/bin/env bash
# The throwaway sshd the tests need (nisse_dev/testing.py), in a CI job.
# Skipped when the job's image already has it. Otherwise apt fetches from a
# kernel.org mirror rather than archive.ubuntu.com, which has been slow
# enough (a few KB/s) to add minutes to every job.
set -euo pipefail
SUDO=$(command -v sudo || true)
if command -v /usr/sbin/sshd > /dev/null && command -v ssh > /dev/null; then
    echo "sshd already installed"
else
    MIRROR=${APT_MIRROR:-http://mirrors.edge.kernel.org/ubuntu}
    # Both layouts: deb822 (ubuntu.sources, 24.04+) and sources.list (older).
    for f in /etc/apt/sources.list.d/ubuntu.sources /etc/apt/sources.list; do
        [ -f "$f" ] && $SUDO sed -i -E \
            "s#https?://(archive|security)\.ubuntu\.com/ubuntu/?#$MIRROR/#g" "$f"
    done
    $SUDO apt-get update -qq
    $SUDO apt-get install -y -qq openssh-server openssh-client > /dev/null
fi
$SUDO mkdir -p /run/sshd