Shallow flash B2G (Non-RIL) for CI

flash.sh

#!/bin/bash -e

# This script is maintained at:
# https://gist.github.com/davehunt/7646076

# adb root, then remount and stop b2g
function adb_root_remount() {
    echo -e "\n\033[1mRoot and remount\033[0m"
    adb root
    adb wait-for-device
    adb remount
    adb wait-for-device
    adb shell mount -o remount,rw /system
    adb wait-for-device
    stop_b2g
}

# adb sync then reboot
function adb_reboot() {
    echo -e "\n\033[1mRebooting\033[0m"
    adb shell sync
    adb shell reboot
    adb wait-for-device
    echo "Done"
}

# stop b2g
function stop_b2g() {
    echo "Stopping b2g"
    adb shell stop b2g
    adb wait-for-device

    ATTEMPTS=5
    COUNTER=0
    RESULT=0
    while [ $COUNTER -lt $ATTEMPTS ] && [ $RESULT == 0 ]; do
        adb shell lsof | grep b2g > /dev/null && RESULT=0 || RESULT=1
        let COUNTER=COUNTER+1
    done
    if [ $COUNTER == $ATTEMPTS ] && [ $RESULT == 0 ]; then
        echo "The b2g process still had files open after $ATTEMPTS attempts"
        adb_reboot
        adb_root_remount
    fi
}

# remove files from the device
function remove() {
    echo "Removing $1"

    ATTEMPTS=5
    COUNTER=0
    RESULT=0
    while [ $COUNTER -lt $ATTEMPTS ] && [ $RESULT == 0 ]; do
        adb shell rm -r $1 | grep "No such file" > /dev/null && RESULT=1 || RESULT=0
        let COUNTER=COUNTER+1
    done
    if [ $COUNTER == $ATTEMPTS ] && [ $RESULT == 0 ]; then
        echo "Failed to remove $1 after $ATTEMPTS attempts"
    fi
}

# clean cache, gaia (webapps) and profiles
function clean() {
    show_free_space
    echo -e "\n\033[1mCleaning\033[0m"
    remove /cache/*
    remove /data/b2g/*
    remove /data/local/storage/persistent/*
    remove /data/local/svoperapps
    remove /data/local/webapps
    remove /data/local/user.js
    remove /data/local/permissions.sqlite*
    remove /data/local/OfflineCache
    remove /data/local/indexedDB
    remove /data/local/debug_info_trigger
    remove /system/b2g/webapps
    remove /data/misc/wifi/*
    # delete battery charging status
    remove /system/bin/battery_charging
    show_free_space
}

# push gaia into device
function push_gaia() {
    echo -e "\n\033[1mPushing Gaia\033[0m"
    GAIA_DIR=shallowflashgaia_temp
    rm -rf $GAIA_DIR && mkdir $GAIA_DIR
    unzip -q gaia.zip -d $GAIA_DIR
    cat $GAIA_DIR/gaia/profile/user.js | sed -e "s/user_pref/pref/" > $GAIA_DIR/user.js
    adb shell mkdir -p /system/b2g/defaults/pref
    adb push $GAIA_DIR/gaia/profile/webapps /system/b2g/webapps
    adb push $GAIA_DIR/user.js /system/b2g/defaults/pref
    adb push $GAIA_DIR/gaia/profile/settings.json /system/b2g/defaults
    show_free_space
}

# push gecko into device
function push_gecko() {
    echo -e "\n\033[1mPushing Gecko\033[0m"
    GECKO_DIR=shallowflashgecko_temp
    rm -rf $GECKO_DIR && mkdir $GECKO_DIR
    tar -xzf b2g.en-US.android-arm.tar.gz -C $GECKO_DIR
    adb push $GECKO_DIR/b2g /system/b2g
    # uninstall old ril
    adb shell rm -r /system/b2g/distribution/bundles/libqc_b2g_location
    adb shell rm -r /system/b2g/distribution/bundles/libqc_b2g_ril
    # delete incompatible extensions
    adb shell rm -r /system/b2g/distribution/bundles/liblge_b2g_extension
    show_free_space
}

function show_free_space() {
    echo -e "\n\033[1mShowing free space\033[0m"
    adb shell df
}

function show_version() {
    echo -e "\n\033[1mShowing version details\033[0m"
    VIRTUALENV=mozversion_temp
    virtualenv -q $VIRTUALENV
    source $VIRTUALENV/bin/activate
    pip install mozversion -q
    set +e
    mozversion --sources=sources.xml
    set -e
    deactivate
}

adb_reboot
adb_root_remount
clean
push_gaia
push_gecko
adb_reboot
sleep 60
show_version
echo ""