#!/bin/bash
# ************************************************************
# AltEPG Project Source Code Version Control
# $FileID: git::root/hack/bin/tivo_install.bash $
# $Revision: altepg1.0c root 2011-09-17 23:39:32 +0100 Finalising altepg1.0c $
# Description: tivo_install : generic installer.
# ************************************************************

# when run with no command line arguments, this installer will look for installation kits in /var/packages, and will unzip and install them.
# when run with a command line argument, the installer will download the specified package and then install it.

# if this script's filename is of the form:  tivo_install_(packagename).bash then it behaves as if (packagename) were a command line argument

DEBUG=0

if [ "$1" = -d ];
then
  DEBUG=1
  shift
fi
export DEBUG

SYSTEM=$(uname -r)
SYSNAME=$(uname -n)
if [ -z "${SYSTEM##*TiVo*}" ]; then
  SYS=TIVO
  MOUNT="mount"
  TIVO_ROOT=""
  ALTEPG_SERVER="194.1.151.205"
elif [ "$SYSNAME" = "Knoppix" ]; then
  SYS=BUILD
  MOUNT=":"
  TIVO_ROOT="/mnt/tivoRoot"
  mkdir -p "$TIVO_ROOT"
  mkdir -p "$TIVO_ROOT/var/log"
  ALTEPG_SERVER="icon"
  ALTEPG_SERVER="194.1.151.205"
else
  SYS=OTHER
  MOUNT=":"
  TIVO_ROOT="/tmp/tivoRoot"
  mkdir -p "$TIVO_ROOT"
  mkdir -p "$TIVO_ROOT/var/log"
  ALTEPG_SERVER="icon"
  ALTEPG_SERVER="194.1.151.205"
fi
LOGFILE="$TIVO_ROOT/var/log/install.log"

putlog()
{
  if [ -n "${1##DEBUG:*}" -o $DEBUG = 1 ]; then
    echo "$(date +%Y-%m-%d:%H:%M:%S): $1" >>"$LOGFILE"
    echo "$(date +%Y-%m-%d:%H:%M:%S): $1"
  fi
}

# pre-requisites : must have updated version of libc.so, and $LD_LIBRARY_PATH defined

do_prerequisites()
{
  libdir="$TIVO_ROOT/var/hack/lib"
  if [ -h "$TIVO_ROOT/var/hack" ]; then  # if symlink, then guess dereference
    libdir="$TIVO_ROOT/hack/lib"
  fi
  if [ -z "$LD_LIBRARY_PATH" ]; then
    LD_LIBRARY_PATH=$libdir
  fi
  if [ -n "${LD_LIBRARY_PATH##*$libdir*}" ]; then
    LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$libdir"
  fi
  export LD_LIBRARY_PATH
  if [ ! -f "$libdir/libc.so" ]; then
    mkdir -p $libdir
    if [ ! -f "$PACKAGE_DIR/libc.so.gz" ]; then
      if [ "$SYS" = "TIVO" ]; then
        /tvbin/http_get -U "http://$ALTEPG_SERVER:80/tivo-static/software/prerequisites/libc.so.gz" -D "$PACKAGE_DIR" -T 0 -C 0
      else
        echo wget -q "http://$ALTEPG_SERVER/tivo-static/software/prerequisites/libc.so.gz" -O "$PACKAGE_DIR/libc.so.gz"
        wget -q "http://$ALTEPG_SERVER/tivo-static/software/prerequisites/libc.so.gz" -O "$PACKAGE_DIR/libc.so.gz"
      fi
      if [ $? != 0 ]; then
        rm -f "$PACKAGE_DIR/libc.so.gz"
      fi
    fi
    if [ -f "$PACKAGE_DIR/libc.so.gz" ]; then
      gzip -df "$PACKAGE_DIR/libc.so.gz"
    fi
    if [ -f "$PACKAGE_DIR/libc.so" ]; then
      cp -p "$PACKAGE_DIR/libc.so" $libdir
    fi
  fi
  if [ ! -f "$libdir/libc.so" ]; then
    putlog "ERROR: prerequisites not satisified - can't install"
    exit 1
  fi
  putlog "INFO: prerequisites complete"
}

INSTALL_DIR=$TIVO_ROOT/var/install
PACKAGE_DIR=$TIVO_ROOT/var/packages
mkdir -p $PACKAGE_DIR
mkdir -p $INSTALL_DIR
mkdir -p $TIVO_ROOT/var/tmp

cd $TIVO_ROOT/var/tmp

do_prerequisites

package_to_install=$1

if [ -z "${0##*tivo_install_*.bash}" ]; then
  front=${0%%.bash}
  package_to_install=${front##*tivo_install_}
fi
if [ -n "$package_to_install" ]; then
  if [ "$SYS" = "TIVO" ]; then
    /tvbin/http_get -U "http://$ALTEPG_SERVER:80/tivo-static/software/available_packages" -D "$TIVO_ROOT/var/tmp" -T 0 -C 0
  else
    wget -q "http://$ALTEPG_SERVER/tivo-static/software/available_packages" -O available_packages
  fi
  if [ $? != 0 -o ! -f "available_packages" ]; then
    putlog "ERROR: unable to retrieve available packages list from server"
    exit 1
  fi
  packageFound=$(grep "^$package_to_install " available_packages)
  if [ -z "$packageFound" ]; then
    echo "Package '$package_to_install' not found - choose from:"
    cat available_packages
    exit 1
  fi
  cd $PACKAGE_DIR
  packageFile="${package_to_install}_install.gz"
  if [ "$SYS" = "TIVO" ]; then
    /tvbin/http_get -U "http://$ALTEPG_SERVER:80/tivo-static/software/packages/$packageFile" -D "$PACKAGE_DIR" -T 0 -C 0
  else
    wget "http://$ALTEPG_SERVER/tivo-static/software/packages/$packageFile" -O $packageFile
  fi
  if [ $? != 0 -o ! -f "$packageFile" ]; then
    putlog "ERROR: unable to retreive $packageFile from server"
    exit 1
  fi
  putlog "INFO: $packageFile downloaded from server $ALTEPG_SERVER"
fi

putlog "INFO: Starting Install"


error=0
installed=0
cd $PACKAGE_DIR
putlog "INFO: Installing packages from $PACKAGE_DIR"
for file in *; do
  if [ -z "${file##*_install.gz}" ]; then
    echo "testing $file"
    if [ -z "$package_to_install" -o "$file" = "$packageFile" ]; then
      gzip -df "$file"
      file=${file%%.gz}
      putlog "INFO: Installing $file"
      cd $INSTALL_DIR
      rm -fR $INSTALL_DIR/*
      if [ "$SYS" = "BUILD" ]; then
        tar xvf "$PACKAGE_DIR/$file"
#        tar xvf "$PACKAGE_DIR/$file" >/dev/null 2>/dev/null
      else
        cpio --format=tar -i <"$PACKAGE_DIR/$file" >/dev/null 2>/dev/null
      fi
      if [ -d "$file" ]; then
        cd "$file"
        if [ -f "install.bash" ]; then
          ./install.bash
	  installed=1
        else
          putlog "ERROR: package $file has no installation script"
      	  error=1
        fi
      fi
      cd $PACKAGE_DIR
    fi
  fi
done

if [ $installed = 0 ]; then
  putlog "ERROR: No package(s) installed"
  exit 1
else
  putlog "INFO: Install Complete (error=$error)"
  exit $error
fi