- lunch: 指定编译项，即编译目标和编译类型（lunch <product_name>-<build_variant>） - tapas: 同choosecombo，设置编译参数（tapas [<App1> <App2> ...] [arm|x86|mips|armv5] [eng|userdebug|user]） - croot: 切换到根目录（Changes directory to the top of the tree.） - m: 从源码树根目录开始make（Makes from the top of the tree.） - mm: 编译当前目录下所有模块，但不包括依赖文件（Builds all of the modules in the current directory, but not their dependencies.） - mmm: 编译指定目录下的所有模块，但不包括依赖文件（Builds all of the modules in the supplied directories, but not their dependencies.） - mma: 编译当前目录下所有模块，包括依赖文件（Builds all of the modules in the current directory, and their dependencies.） - mmma: 编译指定目录下的所有模块，包括依赖文件（Builds all of the modules in the supplied directories, and their dependencies.） - cgrep: 在所有c/c++文件中查找（Greps on all local C/C++ files.） - jgrep: 在所有java文件中查找（Greps on all local Java files.） - resgrep: 在所有res/*.xml中查找（Greps on all local res/*.xml files.） - godir: 跳转到包含某个文件的路径（Go to the directory containing a file.） - printconfig：显示当前Build的配置信息
function get_abs_build_var() # Get the value of a build variable as an absolute path. function get_build_var() # Get the exact value of a build variable. function check_product() # check to see if the supplied product is one we can build function check_variant() # check to see if the supplied variant is valid (variant：user userdebug eng) function setpaths() # sets ANDROID_BUILD_PATHS function printconfig() # 打印配置 function set_stuff_for_environment() # 设置环境变量 function set_sequence_number() # 设置序列号 function settitle() # 设置标题 function addcompletions() # 添加sdk/bash_completion中bash function choosetype() # 选择type （debug/release） function chooseoemprj() # 自定义，设置TARGET_PRODUCT，即project-name function chooseproduct() # 官方自带的设置TARGET_PRODUCT function choosevariant() # 设置variant (user userdebug eng) function choosecombo() # 设置并打印编译参数（choosetype、chooseproduct、choosevariant、chooseoemprj、set_stuff_for_environment） function add_lunch_combo() # 添加lunch项，多次调用，用来添加Android编译选项 function print_lunch_menu() # 打印lunch列表 function lunch() # 配置lunch function _lunch() # Tab completion for lunch.
# Configures the build to build unbundled apps. # Run tapas with one ore more app names (from LOCAL_PACKAGE_NAME) function tapas() # 同choosecombo function gettop # 获取顶层路径 function m() # 从顶层树开始编译 function findmakefile() # 找到Makefile （Android.mk） function mm() # 从当前路径开始编译，不加依赖 function mmm() # 从指定路径开始编译，不加依赖 function mma() # 从当前路径看是编译，包括依赖 function mmma() # 从指定路径开始编译，包括依赖 function croot() # 切换到顶层路径 function cproj() # 没看懂，切换到某一路径 function qpid() # 输出进程号和名字 （simplified version of ps; output in the form <pid> <procname>） function pid() # 输出进程号和名字 function systemstack() # systemstack - dump the current stack trace of all threads in the system process to the usual ANR traces file function stacks() function gdbwrapper() function gdbclient() function sgrep() # 查找c/h/cpp/S/java/xml/sh/mk文件 function gettargetarch # 获取TARGET_ARCH function jgrep() # 查找java文件 function cgrep() # 查找c/c++文件 function resgrep() # 查找xml文件 function mangrep() # 查找out目录中AndroidManifest.xml文件 function sepgrep() # 查找out目录中sepolicy function treegrep() function mgrep() function getprebuilt # 获取ANDROID_PREBUILTS（编译工具） function tracedmdump() function runhat() # communicate with a running device or emulator, set up necessary state, and run the hat command. function getbugreports() function getsdcardpath() function getscreenshotpath() function getlastscreenshot() function startviewserver() function stopviewserver() function isviewserverstarted() function key_home() function key_back() function key_menu() function smoketest() function runtest() # simple shortcut to the runtest command function godir () # 跳到指定目录 function set_java_home() # Force JAVA_HOME to point to java 1.6 if it isn't already set function pez # Print colored exit condition
关键源码： # Clear this variable. It will be built up again when the vendorsetup.sh files are included at the end of this file. unset LUNCH_MENU_CHOICES functionadd_lunch_combo() { local new_combo=$1# 获取add_lunch_combo被调用时的参数 local c for c in${LUNCH_MENU_CHOICES[@]} ; do#遍历LUNCH_MENU_CHOICES，第一次调用时为空 if [ "$new_combo" = "$c" ] ; then# 如果参数存在，则返回 return fi done# 如果参数不存在，则添加 LUNCH_MENU_CHOICES=(${LUNCH_MENU_CHOICES[@]}$new_combo) }
# add the default one here # 系统自动添加的默认编译项 add_lunch_combo aosp_arm-eng # 调用add_lunch_combo()，传入参数 add_lunch_combo aosp_x86-eng add_lunch_combo aosp_mips-eng add_lunch_combo vbox_x86-eng
# 这段代码十分重要，主要在device目录查找vendorsetup.sh并加载，此文件主要添加自定义编译项，如：add_lunch_combo msm8916_32-userdebug # Execute the contents of any vendorsetup.sh files we can find. for f in `test -d device && find device -maxdepth 4 -name 'vendorsetup.sh' 2> /dev/null` \ `test -d vendor && find vendor -maxdepth 4 -name 'vendorsetup.sh' 2> /dev/null` do echo"including $f" . $f# 执行找到的脚本 done unset f
if [ "$1" ] ; then# lunch 后带参数 answer=$1 else# lunch后若不带参数，则打印所以target_product and variant 供用户选择 print_lunch_menu echo -n "Which would you like? [aosp_arm-eng] " read answer fi
local selection=
if [ -z "$answer" ] then selection=aosp_arm-eng # 如果用户在菜单中没有选择，直接回车，则为系统缺省的aosp_arm-eng elif (echo -n $answer | grep -q -e "^[0-9][0-9]*$") then if [ $answer -le ${#LUNCH_MENU_CHOICES[@]} ] # 如果answer是选择菜单的数字，则获取该数字对应的字符串 then selection=${LUNCH_MENU_CHOICES[$(($answer-1))]} fi elif (echo -n $answer | grep -q -e "^[^\-][^\-]*-[^\-][^\-]*$") # 如果 answer字符串匹配 *-*模式(*的开头不能为-) then selection=$answer fi
if [ -z "$selection" ] then echo echo"Invalid lunch combo: $answer" return 1 fi
export TARGET_BUILD_APPS=
local product=$(echo -n $selection | sed -e "s/-.*$//") # 将 product-variant模式中的product分离出来 check_product $product# 检查，调用关系 check_product()->get_build_var()->build/core/config.mk if [ $? -ne 0 ] then echo echo"** Don't have a product spec for: '$product'" echo"** Do you have the right repo manifest?" product= fi
local variant=$(echo -n $selection | sed -e "s/^[^\-]*-//") # 将 product-variant模式中的variant分离出来 check_variant $variant# 检查，看看是否在 (user userdebug eng) 范围内 if [ $? -ne 0 ] then echo echo"** Invalid variant: '$variant'" echo"** Must be one of ${VARIANT_CHOICES[@]}" variant= fi
if [ -z "$product" -o -z "$variant" ] then echo return 1 fi
