mkdir ~/bin
curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
chmod a+x ~/bin/repo

mkdir ~/work/patchrom
cd ~/work/patchrom
repo init -u git://github.com/MiCode/patchrom.git -b jellybean42-mtk
repo sync

cd ~/work/patchrom
source build/envsetup.sh
mkdir ~/work/patchrom/mtk6582
cd mtk6582

#
# Makefile for mtk6582
#

# 指定我们要移植的手机的底包，就是上一步骤里准备的 stockrom.zip
local-zip-file     := stockrom.zip

# 编译我们移植好的 MIUI ROM 时的输出文件名
local-out-zip-file := MIUI_MTK6582.zip

# 制作升级差异包时所需要的上一个版本的 ota 包目录，我们暂时还用不着
local-previous-target-dir := ~/work/ota_base/mtk6582

# All apps from original ZIP, but has smali files chanded
local-modified-apps :=

local-modified-jars :=

# 哪些 MIUI 模块不包含在最终生成的 MIUI ROM 里。这里我们默认包含所有的 MIUI 模块。
local-miui-removed-apps :=

# 我们在移植过程中，使用了 MIUI 的 Phone 模块，但对 MIUI 的这个模块进行反编译并修改了部分 smali 代码使其功能正常。
# 针对 jellybean42-mtk 这个分支，所有的 MIUI 模块定义在 patchrom/build/jellybean42-mtk.mk 文件里。
local-miui-modified-apps := Phone

# density define
local-density := XHDPI

include phoneapps.mk

# To include the local targets before and after zip the final ZIP file,
# and the local-targets should:
# (1) be defined after including porting.mk if using any global variable(see porting.mk)
# (2) the name should be leaded with local- to prevent any conflict with global targets
local-pre-zip := local-pre-zip-misc
local-after-zip:= local-put-to-phone

# The local targets after the zip file is generated, could include 'zip2sd' to
# deliver the zip file to phone, or to customize other actions

include $(PORT_BUILD)/porting.mk

# To define any local-target
updater := $(ZIP_DIR)/META-INF/com/google/android/updater-script
pre_install_data_packages := $(TMP_DIR)/pre_install_apk_pkgname.txt
local-pre-zip-misc:
    rm -rf $(pre_install_data_packages)
    for apk in $(ZIP_DIR)/data/media/preinstall_apps/*.apk; do\
        $(AAPT) d --values resources $$apk | grep 'id=127 packageCount' | sed -e "s/^.*name=//" >> $(pre_install_data_packages);\
    done
    more $(pre_install_data_packages) | wc -l > $(ZIP_DIR)/system/etc/enforcecopyinglibpackages.txt
    more $(pre_install_data_packages) >> $(ZIP_DIR)/system/etc/enforcecopyinglibpackages.txt

out/framework2.jar : out/framework.jar

%.phone : out/%.jar
    @echo push -- to --- phone
    adb remount
    adb push $< /system/framework
    adb shell chmod 644 /system/framework/$*.jar

%.sign-plat : out/%
    java -jar $(TOOL_DIR)/signapk.jar $(PORT_ROOT)/build/security/platform.x509.pem $(PORT_ROOT)/build/security/platform.pk8  $< $<.signed
    @echo push -- to --- phone
    adb remount
    adb push $<.signed /system/app/$*
    adb shell chmod 644 /system/app/$*

├── dst_smali_orig # 这个是底包 stockrom.zip 里反编译出来的系统 smali 文件
│   ├── android.policy.jar.out
│   ├── framework.jar.out
│   ├── mediatek-framework.jar.out
│   ├── secondary-framework.jar.out
│   └── services.jar.out
├── dst_smali_patched　# 这个是程序自动合并的目标 smali 文件
│   ├── android.policy.jar.out
│   ├── framework.jar.out
│   ├── mediatek-framework.jar.out
│   ├── secondary-framework.jar.out
│   └── services.jar.out
├── new_smali # 这个是 MIUI ROM 里反编译出来的系统 smali 文件
│   ├── android.policy.jar.out
│   ├── framework.jar.out
│   ├── mediatek-framework.jar.out
│   ├── secondary-framework.jar.out
│   └── services.jar.out
├── old_smali　# 这个是 AOSP 里反编译出来的系统 smali 文件
│   ├── android.policy.jar.out
│   ├── framework.jar.out
│   ├── mediatek-framework.jar.out
│   ├── secondary-framework.jar.out
│   └── services.jar.out
└── reject　# 这个是由于冲突程序无法自动合并，需要手动合并的 smali 文件
    ├── android.policy.jar.out
    ├── framework.jar.out
    ├── secondary-framework.jar.out
    └── services.jar.out