build_twrp

#!/bin/bash
# Menu to maintain and build CyanogenMOD 10.
# Written by tristan202. Feel free to use, modify and distribute the script.
# Just remember to give proper credit
#
# tristan202 [ad] gmail.com

CM=$HOME/android/cyanogenmod
DEVICE=maguro
OUT=$CM/out/target/product/$DEVICE
TRISTAN202=$HOME/android/tristan202

guake -r TWRP
numlockx on

Output() {
  echo "$(date -d "1970-01-01 UTC $2 seconds") - $1 $OPERATION""ing $3"
}

Duration() {
  local S=$(echo $FINISH_TIME $BEGIN_TIME | awk '{print$1-$2}')
  ((h=S/3600))
  ((m=S%3600/60))
  ((s=S%60))
  printf "$OPERATION""ing took: %dh:%dm:%ds\n" $h $m $s
}

Begin() {
  BEGIN_TIME=$(date +%s)
  Output Begin $BEGIN_TIME "$1"
}

Finish() {
  FINISH_TIME=$(date +%s)
  Output Finished $FINISH_TIME "$1"
  Duration
}

Init_Repo ()
{
  clear
  if [ ! -d $CM ]; then
    echo ""
    echo "Setting up CyanogenMOD 10 repo..."
    mkdir $CM
  fi
  if [ ! -d ~/bin ]; then
    mkdir ~/bin
    PATH=~/bin:$PATH
    curl https://dl-ssl.google.com/dl/googlesource/git-repo/repo > ~/bin/repo
  fi
  if [ ! -f ~/bin/repo ]; then
    curl https://dl-ssl.google.com/dl/googlesource/git-repo/repo > ~/bin/repo
    chmod a+x ~/bin/repo
  fi
  cd $CM && repo init -u git://github.com/CyanogenMod/android.git -b cm-10.1
  read -p "Press [Enter] to return to menu..."
  Main
}

Start_Sync ()
{
  clear
  if [ -d $CM ]; then
    echo ""
    echo "Syncing repo..."
    OPERATION="Sync"
    Begin
    echo ""
    echo "Merging Team-Win-Recovery-Project"
    cd $TRISTAN202/Team-Win-Recovery-Project && git tw
    echo ""
    cd $CM/bootable/recovery && git pull
    Finish
    read -p "Press [Enter] to return to menu..."
  else
    echo ""
    echo "Directory does not exist. Check your 'CM' variable in line 5."
    echo ""
    read -p "Press [Enter] to return to menu..."
    exit 0
  fi
  Main
}

Build ()
{
  clear
  OPERATION="Build"
  echo ""
  echo "Good, starting build..."
  Begin
  cd ${CM}
  make clobber && . build/envsetup.sh && lunch cm_$DEVICE-userdebug &&  make -j3 recoveryimage
  Finish
  read -p "Press [Enter] to return to menu..."
  Main
}

Reboot_Bootloader ()
{
  clear
  echo ""
  echo "Rebooting to bootloader. Happy flashing."
  adb reboot bootloader
  read -p "Press [Enter] to return to menu..."
  Main
}

Get_Prebuilts ()
{
  clear
  echo ""
  echo "Please note, this only has to be done the first time you init repo."
  OPERATION="Gett"
  Begin
  $CM/vendor/cm/get-prebuilts
  Finish
  read -p "Press [Enter] to return to menu..."
}

Get_Prebuilts_First ()
{
  OPERATION="Gett"
  Begin
  if [ ! -d "$CM/vendor/cm/proprietary" ]; then
    $CM/vendor/cm/get-prebuilts
  fi
  Finish
  Build
}

Flash_Recovery ()
{
clear
echo ""
echo "Flashing new TWRP recovery"
cd $OUT
fastboot flash recovery recovery.img
echo ""
  read -p "Press [Enter] to return to menu..."

}

Main ()
{
  while true
  do
    clear
    line='----------------------------------------'
    echo "$line"
    echo "TWRP maintenance and build script"
    echo ""
    echo "Select from the following functions"
    echo ""
    echo "  S    Set up CyanogenMOD 10 repo"
    echo "  P    Get CM required prebuilts"
    echo "  1    Sync repo"
    echo "  2    Build TWRP"
    echo "  3    Reboot to bootloader"
    echo "  4    Flash TWRP recovery"
    echo "  X    Exit"
    echo "$line"
    tput civis
    echo -n "  "
    read -n1 answer
    case "$answer" in
      [Ss]) Init_Repo;;
      [Pp]) Get_Prebuilts;;
      [1]) Start_Sync;;
      [2]) Build;;
      [3]) Reboot_Bootloader;;
      [4]) Flash_Recovery;;
      [Xx]) clear
        echo "Live long and prosper... tristan202"
        echo ""
        tput cnorm
      break ;;
    esac
  done
  exit 0
}

Main