build

#!/bin/bash
# build kernel for all devices
# syntax: build <ReleaseTag> [[<device>] [device]...]
# * if no device(s) is/are specified, ALL known devices are built

# set up build environment (external script because this is specific to developer)
. setenv

# kown devices to be built
KNOWNDEVICES="odys_xpress odys_loox_plus odys_next odys_loox"
# additional options for make
MAKE_OPTIONS="-j2"
# path to kernel archive
KERNEL_PATH="../kernels"
# current timestamp
TIMESTAMP=$(date "+%Y%m%d%H%M")
# current git branch
CURRBRANCH=$(git branch | grep '*' | sed 's/*//;s/\s//g')

# parameter $1 is treated as release tag name
if [ "" == "$1" ]; then
  echo "assuming release tag: TEST"
  RELEASETAG=TEST
else
  # replace tag spaces in tag with underscores
  RELEASETAG=$(echo "$1" | sed 's/\s/_/g')
  shift 1
fi

# device list to be built
if [ "" == "$*" ]; then
  echo "assuming devices: ${KNOWNDEVICES}"
  DEVICES=${KNOWNDEVICES}
else
  DEVICES="$*"
fi

# create revision tag
rev="${CURRBRANCH}_${TIMESTAMP}_${RELEASETAG}"

# check for local git changes
LOCALCHANGES=$(git status -s)
if [ "$LOCALCHANGES" != "" ]; then
  echo "Local changes present"
  echo "Please commit changes before building a release..."
  exit -1
fi

echo -e "\nPerforming Build with following parameters:"
echo -e "Devices:\t$DEVICES"
echo -e "ReleaseTag:\t$RELEASETAG"
echo -e "Revision:\t$rev"
echo
read -p "Press any key to continue, CTRL-C to abort ..."

# perform complete cleanup 
echo "Cleaning up ..."
make distclean

# loop through each device
for device in ${DEVICES} ; do
  echo -e "***\n*** Building kernel for device: ${device} ***\n***"
  # make mrproper
  rm kernel.img
  make ${device}_defconfig
  make ${MAKE_OPTIONS} kernel.img modules 2>&1 | tee build.log
  
  # abort on missing make result
  if [ ! -f kernel.img ]; then echo "ABORTED WITH ERROR"; exit; fi
  
  # archive kernel.img
  mkdir -p ${KERNEL_PATH}/${device}/${rev}
  cp kernel.img ${KERNEL_PATH}/${device}/${rev}
  7z a ${KERNEL_PATH}/kernel_308_${device}_${rev}.7z kernel.img

  # tag current git state with delivery tag
  git tag ${device}.${RELEASETAG}
done
# create package of all available modules
MODULES=`find . -name '*.ko'`
7z a ${KERNEL_PATH}/modules_308_${rev}.7z ${MODULES}