name: busybox
kind: chunk

configure-commands:
# Busybox's default config has everything enabled.
- make defconfig

- sed -e 's|.*UDHCPC_DEFAULT_SCRIPT.*|CONFIG_UDHCPC_DEFAULT_SCRIPT="'"$PREFIX"/share/udhcpc/default.script'"|' -i .config
- sed -e 's|.*IFUPDOWN_IFSTATE_PATH.*|CONFIG_IFUPDOWN_IFSTATE_PATH="/run/ifstate"|' -i .config

# Avoid dividing applets between $PREFIX/[s]bin and $PREFIX/usr/[s]bin.
- '[ "$PREFIX" = /usr ] || sed -e ''s/.*INSTALL_NO_USR.*/CONFIG_INSTALL_NO_USR=y/'' -i .config'

# We have GAWK, but in GENIVI baseline we want to get rid of it
# - sed -e 's/CONFIG_AWK=y.*/# CONFIG_AWK is not set/' -i .config

# Depends on stuff that was removed since eglibc 2.14.
- sed -e 's/CONFIG_INETD=y.*/# CONFIG_INETD is not set/' -i .config

# Busybox Patch is incompatible enough with GNU Patch that it can't be
# used for GNULib projects built from Git.
- sed -e 's/CONFIG_PATCH=y.*/# CONFIG_PATCH is not set/' -i .config

# None of this is needed because we have kmod; and it actually breaks the
# Linux build because depmod isn't compatible enough with util-linux's.
- sed -e 's/CONFIG_DEPMOD=y.*/# CONFIG_DEPMOD is not set/' -i .config
- sed -e 's/CONFIG_INSMOD=y.*/# CONFIG_INSMOD is not set/' -i .config
- sed -e 's/CONFIG_MODPROBE=y.*/# CONFIG_MODPROBE is not set/' -i .config
- sed -e 's/CONFIG_MODPROBE_SMALL=y.*/# CONFIG_MODPROBE_SMALL is not set/' -i .config
- sed -e 's/CONFIG_LSMOD=y.*/# CONFIG_LSMOD is not set/' -i .config
- sed -e 's/CONFIG_RMMOD=y.*/# CONFIG_RMMOD is not set/' -i .config

# General features that we don't need.
- sed -e 's/CONFIG_FEATURE_MOUNT_CIFS=y.*/# CONFIG_FEATURE_MOUNT_CIFS is not set/' -i .config
- sed -e 's/CONFIG_FEATURE_EXTRA_QUIET=y.*/# CONFIG_FEATURE_EXTRA_QUIET is not set/' -i .config
- sed -e 's/CONFIG_FEATURE_INIT_COREDUMPS=y.*/# CONFIG_FEATURE_INIT_COREDUMPS is not set/' -i .config
- sed -e 's/CONFIG_FEATURE_INIT_SCTTY=y.*/# CONFIG_FEATURE_INIT_SCTTY is not set/' -i .config
- sed -e 's/CONFIG_FEATURE_INIT_SYSLOG=y.*/# CONFIG_FEATURE_INIT_SYSLOG is not set/' -i .config
- sed -e 's/CONFIG_FEATURE_INITRD=y.*/# CONFIG_FEATURE_INITRD is not set/' -i .config
- sed -e 's/CONFIG_FEATURE_MINIX2=y.*/# CONFIG_FEATURE_MINIX2 is not set/' -i .config
- sed -e 's/CONFIG_FSCK_MINIX=y.*/# CONFIG_FSCK_MINIX is not set/' -i .config
- sed -e 's/CONFIG_LOSETUP=y.*/# CONFIG_LOSETUP is not set/' -i .config
- sed -e 's/CONFIG_LSUSB=y.*/# CONFIG_LSUSB is not set/' -i .config
- sed -e 's/CONFIG_LZMA=y.*/# CONFIG_LZMA is not set/' -i .config
- sed -e 's/CONFIG_MKFS_EXT2=y.*/# CONFIG_MKFS_EXT2 is not set/' -i .config
- sed -e 's/CONFIG_MKFS_MINIX=y.*/# CONFIG_MKFS_MINIX is not set/' -i .config
- sed -e 's/CONFIG_STRINGS=y.*/# CONFIG_STRINGS is not set/' -i .config
- sed -e 's/CONFIG_UNLZMA=y.*/# CONFIG_UNLZMA is not set/' -i .config
- sed -e 's/CONFIG_UNXZ=y.*/# CONFIG_UNXZ is not set/' -i .config
- sed -e 's/CONFIG_XZ=y.*/# CONFIG_XZ is not set/' -i .config

# Now turn on some little bits we do need
- sed -e 's/# CONFIG_BBCONFIG is not set/CONFIG_BBCONFIG=y/' -i .config
- sed -e 's/# CONFIG_FEATURE_COMPRESS_BBCONFIG is not set/CONFIG_FEATURE_COMPRESS_BBCONFIG=y/' -i .config
- sed -e 's/# CONFIG_FEATURE_MOUNT_HELPERS is not set/CONFIG_FEATURE_MOUNT_HELPERS=y/' -i .config


build-commands:
- make

install-commands:
- |
  set -e
  if [ "$PREFIX" = /usr ]; then PREFIX=; fi
  make CONFIG_PREFIX="$DESTDIR$PREFIX" install
  chmod 6755 "$DESTDIR$PREFIX"/bin/busybox
- |
  install -D -m 644 /proc/self/fd/0 "$DESTDIR$PREFIX/lib/systemd/system/crond.service" <<'EOF'
  [Unit]
  Description=Cron Service
  
  [Service]
  ExecStart=/usr/sbin/crond -f
  Restart=always
  EOF

- mkdir -p "$DESTDIR/var/spool/cron/crontabs"

# Install custom udev rule to run ifup for every network device detected
- |
  install -D -m 644 /proc/self/fd/0 "$DESTDIR/lib/udev/rules.d/99-baserock.rule" <<'EOF'
  ACTION=="remove", GOTO="baserock_end"
  # run ifup for every network device detected
  SUBSYSTEM=="net", KERNEL!="lo", ENV{SYSTEMD_WANTS}="ifup@%k.service"
  
  LABEL="baserock_end"
  EOF
- |
  install -D -m 644 /proc/self/fd/0 "$DESTDIR$PREFIX/lib/systemd/system/ifup@.service" <<'EOF'
  [Unit]
  Description=ifup for %I
  Before=network.target
  
  [Service]
  Type=oneshot
  ExecStart=/sbin/ifup %I
  ExecStop=/sbin/ifdown %I
  RemainAfterExit=true
  EOF

# Set up DHCP
- mkdir -p "$DESTDIR$PREFIX"/share/udhcpc
- cp examples/udhcp/simple.script "$DESTDIR$PREFIX"/share/udhcpc/default.script

# Set up NTP
- |
  install -D /proc/self/fd/0 "$DESTDIR$PREFIX/sbin" <<'EOF'
  #!/bin/sh
  #
  # Invoke the Busybox ntpd with servers listed in /etc/ntpd.conf, if it
  # exists. The servers should be listed one per line, with the first
  # word in the line being "server". Any lines that don't start with
  # "server" as the first word are ignored. The server name should be
  # the second word. Anything else on the line is ignored.
  #
  # If the config file does not exist, no default servers are used.
  
  set -eu
  
  parse_servers()
  {
      awk '$1 == "server" { for (i=2; i <= NF; ++i) print "-p", $i }' "$1"
  }
  
  if [ -e /etc/ntpd.conf ]
  then
      exec ntpd $(parse_servers /etc/ntpd.conf) "$@"
  else
      exec ntpd "$@"
  fi
  EOF
- |
  install -D -m 644 /proc/self/fd/0 "$DESTDIR$PREFIX/lib/systemd/system/ntpd-boot.service" <<'EOF'
  [Unit]
  Description=Set clock at boot with NTP
  Before=network.target
  Before=ntpd.service
  
  [Service]
  Type=oneshot
  ExecStart=/usr/sbin/run-ntpd-with-config -n -q
  Restart=on-failure
  RestartSec=15
  EOF
- |
  install -D -m 644 /proc/self/fd/0 "$DESTDIR$PREFIX/lib/systemd/system/ntpd.service" <<'EOF'
  [Unit]
  Description=Keep clock synchronised with NTP
  Before=network.target
  After=ntpd-boot.service
  
  [Service]
  Type=simple
  ExecStart=/usr/sbin/run-ntpd-with-config -n
  Restart=on-failure
  RestartSec=15
  EOF
- install -d "$DESTDIR/etc"
- |
  cat << EOF > "$DESTDIR/etc/ntpd.conf"
  server 0.pool.ntp.org
  server 1.pool.ntp.org
  server 2.pool.ntp.org
  server 3.pool.ntp.org
  EOF

# Set up man environment variables
- |
  cat << EOF > "$DESTDIR/etc/profile"
  # Set default pager to less
  export MANPAGER='less -R'
  EOF
- |
  cat << EOF > "$DESTDIR/etc/man.conf"
  # This file is used by man to provide a manpath for those without one by
  # examining their PATH environment variable.
  #
  # Lines beginning with `#' are comments and are ignored. Any combination of
  # tabs or spaces may be used as `whitespace' separators.

  MANDATORY_MANPATH                       /usr/man
  MANDATORY_MANPATH                       /usr/share/man
  MANDATORY_MANPATH                       /usr/local/share/man
  EOF

# Install systemd units
- mkdir -p "$DESTDIR$PREFIX/lib/systemd/system/multi-user.target.wants"
- |
  for f in crond.service ntpd.service ntpd-boot.service; do
      ln -s "../$f" "$DESTDIR$PREFIX/lib/systemd/system/multi-user.target.wants/"
  done