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###############################################################################
# Copyright (c) 2014 Linaro
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Eclipse Public License v1.0
# which accompanies this distribution, and is available at
# http://www.eclipse.org/legal/epl-v10.html
###############################################################################

export PATH=$PATH:~/bin/
set -o errtrace

git config --global user.email "android-build-bot@fake-email.com"
git config --global user.name "android-build-bot"

if [ ! -n "$SOURCE_OVERLAY" ]; 
then
    echo "ERROR: Missing SOURCE_OVERLAY in the configuration."
    exit 1
fi

if [ "$SOURCE_OVERLAY_OPTIONAL" == "1" -o -n "$SOURCE_OVERLAY_OPTIONAL" ]; then
    echo "ERROR: SOURCE_OVERLAY_OPTIONAL should not be set in official build configuration."
    echo "       It is meant to be set only in local build scripts to bypass overlays."
    exit 1
fi

source "${BUILD_SCRIPT_ROOT}"/helpers

trap infrastructure_error ERR

if [ -z "${TARGET_OUT_DIR}" ]; then
    # only set TARGET_OUT_DIR when it is not set
    # Set TARGET_OUT_DIR since few TARGET_PRODUCT include "full_" keyword as well
    export TARGET_OUT_DIR=`echo $TARGET_PRODUCT | sed 's/_/\n/;s/.*\n//'`
fi

if [ -n "$BUILD_COPYCAT" ]; then

    download_another_build "$BUILD_COPYCAT"

else

    # Download overlays ASAP for fail-fast approach
    if [ -n "$SOURCE_OVERLAY" ]; then
        download_overlays "$SOURCE_OVERLAY"
    fi

    # Select JAVA version based on Android version. Android 4.4 < builds with JAVA6
    # AOSP master and future build will use java 1.7 openjdk.
    # Step 1/2 (fail fast)
    if [ -n "$USE_JAVA_6" ]; then
        sudo update-java-alternatives --set java-6-sun || true
    elif [ -n "$USE_JAVA_7" ]; then
        sudo update-java-alternatives --set java-1.7.0-openjdk-amd64 || true
    fi

    java -version

    # Download toolchain, fail-fast
    if test -n "$TOOLCHAIN_URL"; then
        wget -nv --no-check-certificate $TOOLCHAIN_URL
    fi

    # Remove any old local manifest and manifest which can break repo init if 
    # duplicate repository are found or forceful manifest update
    rm -rf .repo/local_manifests .repo/manifest*

    if [ -n "$REPO_SEED_URL" ]; then
        repo-sync-from-seed "${1}"
    else
        repo-sync-from-mirror "${1}"
    fi

    if [ -n "$GERRIT_PROJECT" ] && [ $GERRIT_PROJECT != "android-build-configs" ] && [ $GERRIT_EVENT_TYPE == "comment-added" ]; then
        if [ "$GERRIT_PROJECT" == "platform/manifest" ]; then
            cd .repo/local_manifests;
            git pull http://android-review.linaro.org/platform/manifest $GERRIT_REFSPEC
            cd -
        else
            cd `grep -rni $GERRIT_PROJECT\" .repo/local_manifests | grep -Po 'path="\K[^"]*'`
            if [ ${GERRIT_HOST} == "dev-private-review.linaro.org" ]; then
                GERRIT_URL="ssh://git@${GERRIT_HOST}/${GERRIT_PROJECT}"
            else
                GERRIT_URL="http://${GERRIT_HOST}/${GERRIT_PROJECT}"
            fi
            if git pull ${GERRIT_URL} ${GERRIT_REFSPEC} | grep -q "Automatic merge failed"; then
                git reset --hard
                echo "Error: *** Error patch merge failed"
                exit 1
            fi
            cd -
        fi
    fi

    if [ -n "$PATCHSETS" ]; then
        for i in $PATCHSETS; do
            sh ./android-patchsets/$i
        done
    fi

    if [ -n "$POST_CHECKOUT_HOOK" ]; then
    #    if echo "$POST_CHECKOUT_HOOK" | grep -F / >/dev/null; then
    #        echo "Invalid POST_CHECKOUT_HOOK: $POST_CHECKOUT_HOOK"
    #        exit 1
    #    fi
        $BUILD_SCRIPT_ROOT/$POST_CHECKOUT_HOOK
    fi

    # Generate a Changelog describing additional patches applied to AOSP codebase
    export android_version=`grep -rni "refs/tags" .repo/manifest.xml  | sed -e "s/.*tags\///" -e "s/\"//g"`
    repo forall -c 'if git rev-parse $android_version >/dev/null 2>&1
        then
        patches=`git log --oneline --no-merges $android_version..HEAD | wc -l`
        if [ $patches -ne 0 ]; then
             git_remote=`git remote -v | grep "fetch" | cut -f2 | cut -d " " -f1`
             echo "====================================================================="
             echo "Patchsets applied to $git_remote on top of $android_version"
             git diff --stat $android_version HEAD
             git log --oneline --no-merges $android_version..HEAD
             echo ""
       fi;
    fi' | cat > temp_changelog.txt
    files_changed=`add_changes \`grep -e "file changed" -e "files changed" temp_changelog.txt | cut -d " " -f2\``
    insertions=`add_changes \`grep -e "file changed" -e "files changed" temp_changelog.txt | cut -d " " -f5\``
    deletions=`add_changes \`grep -e "file changed" -e "files changed" temp_changelog.txt | cut -d " " -f7\``
    echo "=====================================================================" > changelog.txt
    echo "=====================================================================" >> changelog.txt
    echo "$files_changed files changed, $insertions insertions(+), $deletions deletions(-)" >> changelog.txt
    echo "=====================================================================" >> changelog.txt
    echo "=====================================================================" >> changelog.txt
    echo "" >> changelog.txt
    cat temp_changelog.txt >> changelog.txt
    trap - ERR
    . build/envsetup.sh
    trap infrastructure_error ERR

    [ -n "$LUNCH" ] && lunch "$LUNCH"

    # We evaluate the configuration again because envsetup.sh might well
    # have stomped on some of the values in it.

    set -a
    eval $CONFIGURATION
    set +a

#    export JAVA_HOME=/usr/lib/jvm/java-6-sun-1.6.0.22/
#    export ANDROID_JAVA_HOME=$JAVA_HOME

    # Select JAVA version based on Android version. Android 4.4 < builds with JAVA6
    # AOSP master and future build will use java 1.7 openjdk.
    # Step 2/2
#    if [ -n "$USE_JAVA_6" ]; then
#        export JAVA_HOME=/usr/lib/jvm/java-6-sun/
#        export ANDROID_JAVA_HOME=$JAVA_HOME
#    elif [ -n "$USE_JAVA_7" ]; then
#        export JAVA_HOME=/usr/lib/jvm/java-1.7.0-openjdk-amd64/
#        export ANDROID_JAVA_HOME=$JAVA_HOME
#    fi

    MAKE_TARGETS="${MAKE_TARGETS-boottarball systemtarball userdatatarball}"
    calc_make_jobs

    if test -n "$TOOLCHAIN_URL"; then
        toolchain_filename=`echo $TOOLCHAIN_URL | sed -e 's/.*\/\([^/]*\)$/\1/'`
        mkdir toolchain
        tar -C toolchain --strip-components 1 -xf $toolchain_filename
        if test -z "$TOOLCHAIN_TRIPLET"; then
                # Android 2.x usually needs to be built with arm-eabi,
                # Android 4.x usually needs to be built with arm-linux-androideabi...
                if echo $MANIFEST_BRANCH |grep -qE 'android.2\.3'; then
                        p=`find $PWD/toolchain/bin/arm-eabi-gcc 2>/dev/null |head -n1`
                else
                        p=`find $PWD/toolchain/bin/arm-linux-androideabi-gcc 2>/dev/null |head -n1`
                fi
                [ -z "$p" ] && p=`find $PWD/toolchain/bin/*-gcc |head -n1`
        else
                p=`find $PWD/toolchain/bin/$TOOLCHAIN_TRIPLET-gcc |head -n1`
        fi
        export TARGET_TOOLS_PREFIX=`echo $p | sed -e 's/-gcc$/-/'`
    fi

    if [ "$TOOLCHAIN_FINGERPRINT" != "0" -a -n "$toolchain_filename" ]; then
        mkdir -p fingerprints
        cp $toolchain_filename fingerprints/
    fi

    if test -z "$TARGET_ARCH_VARIANT" -a -z "$LUNCH"; then
        TARGET_ARCH_VARIANT=armv7-a-neon
    fi
    if test -z "$WITH_HOST_DALVIK"; then
        WITH_HOST_DALVIK=false
    fi

    SHOWCOMMANDS=
    if ! test -z "$QUIET" && test "$QUIET" = "1"; then
        SHOWCOMMANDS=showcommands
    fi

    if [ -n "$SOURCE_OVERLAY" ]; then
        unpack_overlays "$SOURCE_OVERLAY"
    fi

    if [ -n "$EXTERNAL_TARBALL" ]; then
        unpack_external_tarball "$EXTERNAL_TARBALL"
    fi

    if [ -n "$CLANG_TOOLCHAIN_URL" ]; then
        unpack_external_tarball "$CLANG_TOOLCHAIN_URL"
        # Adapt to the aosp toolchain directory hierarchy - compile error otherwise
        ANDROID_CLANGVER=$(gawk '{ if ($1 == "LLVM_PREBUILTS_VERSION") print $3 }' $PWD/build/core/clang/versions.mk)
        [ -z $ANDROID_CLANGVER ] && ANDROID_CLANGVER=clang-3217047 # aosp prebuilt build number at 2016/10/20 master
        mkdir -p upstream_clang/linux-x86/$ANDROID_CLANGVER/
        cp -r $(basename ${CLANG_TOOLCHAIN_URL})/* upstream_clang/linux-x86/$ANDROID_CLANGVER/
        export LLVM_PREBUILTS_BASE=${PWD}/upstream_clang/
    fi

    if [ -x "${TARGET_TOOLS_PREFIX}gcc" ]; then
        ${TARGET_TOOLS_PREFIX}gcc -v
    fi

    if [ -z "$MAKE" ]; then
        MAKE=make
    fi

    if ! is_on_ec2; then
        export USE_CCACHE=1
        export CCACHE_DIR=$PWD/.ccache
        if [ ! -e ".ccache" ]; then
            ./prebuilts/misc/linux-x86/ccache/ccache -M 25G
        fi
    fi

    trap - ERR
    export TIMEFORMAT="TIME: Compilation: %lR"
    time $MAKE $MAKE_OPTS -j$MAKE_JOBS $MAKE_TARGETS $SHOWCOMMANDS WITH_HOST_DALVIK="$WITH_HOST_DALVIK" USE_CLANG_PLATFORM_BUILD="$USE_CLANG_PLATFORM_BUILD"
    unset TIMEFORMAT
    trap infrastructure_error ERR

    # Show remaining disk space to catch early if
    # we're approaching ramdisk limit again
    echo "Remaining disk space after build:"
    df

    if [ -n "$BUILD_SYSROOT" ]; then
        git clone git://git.linaro.org/android/toolchain/build.git toolchain-build
        rm -rf /tmp/sysroot
        toolchain-build/build-sysroot.sh out/target/product/`ls -1 out/target/product | head -n1` /tmp/sysroot
        tar -cj -C /tmp/sysroot -f out/sysroot.tar.bz2 .
    fi

fi

# Create filesystem images
if [ -n "$BUILD_FS_IMAGE" ]; then
    FS_IMAGE_SIZE=${FS_IMAGE_SIZE-2G}
    sudo linaro-android-media-create \
        --dev `product2lamc_dev $TARGET_PRODUCT` \
        --system $PWD/out/target/product/$TARGET_OUT_DIR/system.tar.bz2 \
        --userdata $PWD/out/target/product/$TARGET_OUT_DIR/userdata.tar.bz2 \
        --boot $PWD/out/target/product/$TARGET_OUT_DIR/boot.tar.bz2 \
        --image-size "$FS_IMAGE_SIZE" \
        --image-file out/target/product/$TARGET_OUT_DIR/$TARGET_PRODUCT.img
    bzip2 -9 out/target/product/$TARGET_PRODUCT/$TARGET_PRODUCT.img
fi

# Store kernel .config as a build artifact
if [ -f kernel/.config ]; then
    cp kernel/.config out/kernel_config
elif [ -f "out/target/product/$TARGET_OUT_DIR/obj/kernel/.config" ]; then
    cp "out/target/product/$TARGET_OUT_DIR/obj/kernel/.config" out/kernel_config
fi
# Create md5sums file for platform artifacts
(cd out/target/product/${TARGET_OUT_DIR}/; md5sum *.tar.bz2 *.img *.img.bz2 >MD5SUMS) || true

(cd out/; ${BUILD_SCRIPT_ROOT}/create-user-build-script)
if  [ -f  out/kernel_config ]; then
    (cd out/; ${BUILD_SCRIPT_ROOT}/create-user-kernel-script) || true
fi

if [ ! -n "$SKIP_LICENSE_CHECK" ]; then
    ${BUILD_SCRIPT_ROOT}/license-verification.sh out/pinned-manifest.xml  out/target/product/$TARGET_PRODUCT/BUILD-INFO.txt
fi

if [ -n "$PUBLISH_DESCRIPTIONS" ]; then
    ${BUILD_SCRIPT_ROOT}/../utils/manifest-descriptions/make.sh out/source-manifest.xml out/pinned-manifest.xml
fi

# Create build_config.json as a build artifact
target_kernel_src=`grep '^TARGET_KERNEL_SOURCE' device/linaro/${TARGET_PRODUCT}/BoardConfig.mk|cut -d'=' -f2|tr -d '[[:space:]]'`
if [ -n "${target_kernel_src}" ]; then
    kernel_proj_str=`grep "path=\"${target_kernel_src}\"" out/pinned-manifest.xml`
    kernel_rev=`echo ${kernel_proj_str} | grep -o "revision[^ ]*" | cut -d"\"" -f2`
    kernel_branch=`echo ${kernel_proj_str} | grep -o "upstream[^ ]*" | cut -d"\"" -f2`
    kernel_repo_path=`echo ${kernel_proj_str} | grep -o "path[^ ]*" | cut -d"\"" -f2`
    cd $kernel_repo_path
    kernel_repo=`git remote -v | grep "fetch" | cut -f2 | cut -d " " -f1`
    cd -
fi
android_ver=`grep "ro\.build\.version\.release" out/target/product/${TARGET_OUT_DIR}/system/build.prop|cut -d"=" -f2`
toolchain=`echo ${ANDROID_TOOLCHAIN}|awk -F'/' '{print $(NF-1)}'`
build_arch=`echo ${toolchain} | cut -d"-" -f1`
compiler=`$(find ${ANDROID_TOOLCHAIN} -name "*-gcc"|head -n1) --version | head -n1`
dtbs=`find out -iname *.dtb | rev | cut -d"/" -f1 | rev | sort | uniq`
dtbfs=""
for f in $dtbs;
do
  dtbfs="\"$f\", $dtbfs"
done
dtb="[${dtbfs%,*}]"
cat > out/build_config.json <<EOF
{
  "kernel_repo" : "${kernel_repo}",
  "kernel_commit_id" : "${kernel_rev}",
  "kernel_branch" : "${kernel_branch}",
  "android_version" : "${android_ver}",
  "android_toolchain" : "${toolchain}",
  "build_arch" : "${build_arch}",
  "compiler" : "${compiler}",
  "dtb" : ${dtb}
}
EOF
cp changelog.txt out/

flatten_artifacts