envsetup.sh - SHIFTPHONES/android_build - Gitiles

 function hmm() {
 cat <<EOF

 Run "m help" for help with the build system itself.

 Invoke ". build/envsetup.sh" from your shell to add the following functions to your environment:
 - lunch:      lunch <product_name>-<build_variant>
               Selects <product_name> as the product to build, and <build_variant> as the variant to
               build, and stores those selections in the environment to be read by subsequent
               invocations of 'm' etc.
 - tapas:      tapas [<App1> <App2> ...] [arm|x86|mips|arm64|x86_64|mips64] [eng|userdebug|user]
 - croot:      Changes directory to the top of the tree, or a subdirectory thereof.
 - m:          Makes from the top of the tree.
 - mm:         Builds all of the modules in the current directory, but not their dependencies.
 - mmm:        Builds all of the modules in the supplied directories, but not their dependencies.
               To limit the modules being built use the syntax: mmm dir/:target1,target2.
 - mma:        Builds all of the modules in the current directory, and their dependencies.
 - mmma:       Builds all of the modules in the supplied directories, and their dependencies.
 - provision:  Flash device with all required partitions. Options will be passed on to fastboot.
 - cgrep:      Greps on all local C/C++ files.
 - ggrep:      Greps on all local Gradle files.
 - jgrep:      Greps on all local Java files.
 - resgrep:    Greps on all local res/*.xml files.
 - mangrep:    Greps on all local AndroidManifest.xml files.
 - mgrep:      Greps on all local Makefiles and *.bp files.
 - owngrep:    Greps on all local OWNERS files.
 - sepgrep:    Greps on all local sepolicy files.
 - sgrep:      Greps on all local source files.
 - godir:      Go to the directory containing a file.
 - allmod:     List all modules.
 - gomod:      Go to the directory containing a module.
 - pathmod:    Get the directory containing a module.
 - refreshmod: Refresh list of modules for allmod/gomod.

 Environment options:
 - SANITIZE_HOST: Set to 'address' to use ASAN for all host modules.
 - ANDROID_QUIET_BUILD: set to 'true' to display only the essential messages.

 Look at the source to view more functions. The complete list is:
 EOF
     local T=$(gettop)
     local A=""
     local i
     for i in `cat $T/build/envsetup.sh | sed -n "/^[[:blank:]]*function /s/function \([a-z_]*\).*/\1/p" | sort | uniq`; do
       A="$A $i"
     done
     echo $A
 }

 # Get all the build variables needed by this script in a single call to the build system.
 function build_build_var_cache()
 {
     local T=$(gettop)
     # Grep out the variable names from the script.
     cached_vars=(`cat $T/build/envsetup.sh | tr '()' '  ' | awk '{for(i=1;i<=NF;i++) if($i~/get_build_var/) print $(i+1)}' | sort -u | tr '\n' ' '`)
     cached_abs_vars=(`cat $T/build/envsetup.sh | tr '()' '  ' | awk '{for(i=1;i<=NF;i++) if($i~/get_abs_build_var/) print $(i+1)}' | sort -u | tr '\n' ' '`)
     # Call the build system to dump the "<val>=<value>" pairs as a shell script.
     build_dicts_script=`\builtin cd $T; build/soong/soong_ui.bash --dumpvars-mode \
                         --vars="${cached_vars[*]}" \
                         --abs-vars="${cached_abs_vars[*]}" \
                         --var-prefix=var_cache_ \
                         --abs-var-prefix=abs_var_cache_`
     local ret=$?
     if [ $ret -ne 0 ]
     then
         unset build_dicts_script
         return $ret
     fi
     # Execute the script to store the "<val>=<value>" pairs as shell variables.
     eval "$build_dicts_script"
     ret=$?
     unset build_dicts_script
     if [ $ret -ne 0 ]
     then
         return $ret
     fi
     BUILD_VAR_CACHE_READY="true"
 }

 # Delete the build var cache, so that we can still call into the build system
 # to get build variables not listed in this script.
 function destroy_build_var_cache()
 {
     unset BUILD_VAR_CACHE_READY
     local v
     for v in $cached_vars; do
       unset var_cache_$v
     done
     unset cached_vars
     for v in $cached_abs_vars; do
       unset abs_var_cache_$v
     done
     unset cached_abs_vars
 }

 # Get the value of a build variable as an absolute path.
 function get_abs_build_var()
 {
     if [ "$BUILD_VAR_CACHE_READY" = "true" ]
     then
         eval "echo \"\${abs_var_cache_$1}\""
     return
     fi

     local T=$(gettop)
     if [ ! "$T" ]; then
         echo "Couldn't locate the top of the tree.  Try setting TOP." >&2
         return
     fi
     (\cd $T; build/soong/soong_ui.bash --dumpvar-mode --abs $1)
 }

 # Get the exact value of a build variable.
 function get_build_var()
 {
     if [ "$BUILD_VAR_CACHE_READY" = "true" ]
     then
         eval "echo \"\${var_cache_$1}\""
     return
     fi

     local T=$(gettop)
     if [ ! "$T" ]; then
         echo "Couldn't locate the top of the tree.  Try setting TOP." >&2
         return
     fi
     (\cd $T; build/soong/soong_ui.bash --dumpvar-mode $1)
 }

 # check to see if the supplied product is one we can build
 function check_product()
 {
     local T=$(gettop)
     if [ ! "$T" ]; then
         echo "Couldn't locate the top of the tree.  Try setting TOP." >&2
         return
     fi
         TARGET_PRODUCT=$1 \
         TARGET_BUILD_VARIANT= \
         TARGET_BUILD_TYPE= \
         TARGET_BUILD_APPS= \
         get_build_var TARGET_DEVICE > /dev/null
     # hide successful answers, but allow the errors to show
 }

 VARIANT_CHOICES=(user userdebug eng)

 # check to see if the supplied variant is valid
 function check_variant()
 {
     local v
     for v in ${VARIANT_CHOICES[@]}
     do
         if [ "$v" = "$1" ]
         then
             return 0
         fi
     done
     return 1
 }

 function setpaths()
 {
     local T=$(gettop)
     if [ ! "$T" ]; then
         echo "Couldn't locate the top of the tree.  Try setting TOP."
         return
     fi

     ##################################################################
     #                                                                #
     #              Read me before you modify this code               #
     #                                                                #
     #   This function sets ANDROID_BUILD_PATHS to what it is adding  #
     #   to PATH, and the next time it is run, it removes that from   #
     #   PATH.  This is required so lunch can be run more than once   #
     #   and still have working paths.                                #
     #                                                                #
     ##################################################################

     # Note: on windows/cygwin, ANDROID_BUILD_PATHS will contain spaces
     # due to "C:\Program Files" being in the path.

     # out with the old
     if [ -n "$ANDROID_BUILD_PATHS" ] ; then
         export PATH=${PATH/$ANDROID_BUILD_PATHS/}
     fi
     if [ -n "$ANDROID_PRE_BUILD_PATHS" ] ; then
         export PATH=${PATH/$ANDROID_PRE_BUILD_PATHS/}
         # strip leading ':', if any
         export PATH=${PATH/:%/}
     fi

     # and in with the new
     local prebuiltdir=$(getprebuilt)
     local gccprebuiltdir=$(get_abs_build_var ANDROID_GCC_PREBUILTS)

     # defined in core/config.mk
     local targetgccversion=$(get_build_var TARGET_GCC_VERSION)
     local targetgccversion2=$(get_build_var 2ND_TARGET_GCC_VERSION)
     export TARGET_GCC_VERSION=$targetgccversion

     # The gcc toolchain does not exists for windows/cygwin. In this case, do not reference it.
     export ANDROID_TOOLCHAIN=
     export ANDROID_TOOLCHAIN_2ND_ARCH=
     local ARCH=$(get_build_var TARGET_ARCH)
     local toolchaindir toolchaindir2=
     case $ARCH in
         x86) toolchaindir=x86/x86_64-linux-android-$targetgccversion/bin
             ;;
         x86_64) toolchaindir=x86/x86_64-linux-android-$targetgccversion/bin
             ;;
         arm) toolchaindir=arm/arm-linux-androideabi-$targetgccversion/bin
             ;;
         arm64) toolchaindir=aarch64/aarch64-linux-android-$targetgccversion/bin;
                toolchaindir2=arm/arm-linux-androideabi-$targetgccversion2/bin
             ;;
         mips|mips64) toolchaindir=mips/mips64el-linux-android-$targetgccversion/bin
             ;;
         *)
             echo "Can't find toolchain for unknown architecture: $ARCH"
             toolchaindir=xxxxxxxxx
             ;;
     esac
     if [ -d "$gccprebuiltdir/$toolchaindir" ]; then
         export ANDROID_TOOLCHAIN=$gccprebuiltdir/$toolchaindir
     fi

     if [ "$toolchaindir2" -a -d "$gccprebuiltdir/$toolchaindir2" ]; then
         export ANDROID_TOOLCHAIN_2ND_ARCH=$gccprebuiltdir/$toolchaindir2
     fi

     export ANDROID_DEV_SCRIPTS=$T/development/scripts:$T/prebuilts/devtools/tools:$T/external/selinux/prebuilts/bin

     # add kernel specific binaries
     case $(uname -s) in
         Linux)
             export ANDROID_DEV_SCRIPTS=$ANDROID_DEV_SCRIPTS:$T/prebuilts/misc/linux-x86/dtc:$T/prebuilts/misc/linux-x86/libufdt
             ;;
         *)
             ;;
     esac

     ANDROID_BUILD_PATHS=$(get_build_var ANDROID_BUILD_PATHS):$ANDROID_TOOLCHAIN
     if [ -n "$ANDROID_TOOLCHAIN_2ND_ARCH" ]; then
         ANDROID_BUILD_PATHS=$ANDROID_BUILD_PATHS:$ANDROID_TOOLCHAIN_2ND_ARCH
     fi
     ANDROID_BUILD_PATHS=$ANDROID_BUILD_PATHS:$ANDROID_DEV_SCRIPTS

     # Append llvm binutils prebuilts path to ANDROID_BUILD_PATHS.
     local ANDROID_LLVM_BINUTILS=$(get_abs_build_var ANDROID_CLANG_PREBUILTS)/llvm-binutils-stable
     ANDROID_BUILD_PATHS=$ANDROID_BUILD_PATHS:$ANDROID_LLVM_BINUTILS

     # If prebuilts/android-emulator/<system>/ exists, prepend it to our PATH
     # to ensure that the corresponding 'emulator' binaries are used.
     case $(uname -s) in
         Darwin)
             ANDROID_EMULATOR_PREBUILTS=$T/prebuilts/android-emulator/darwin-x86_64
             ;;
         Linux)
             ANDROID_EMULATOR_PREBUILTS=$T/prebuilts/android-emulator/linux-x86_64
             ;;
         *)
             ANDROID_EMULATOR_PREBUILTS=
             ;;
     esac
     if [ -n "$ANDROID_EMULATOR_PREBUILTS" -a -d "$ANDROID_EMULATOR_PREBUILTS" ]; then
         ANDROID_BUILD_PATHS=$ANDROID_BUILD_PATHS:$ANDROID_EMULATOR_PREBUILTS
         export ANDROID_EMULATOR_PREBUILTS
     fi

     # Append asuite prebuilts path to ANDROID_BUILD_PATHS.
     local os_arch=$(get_build_var HOST_PREBUILT_TAG)
     local ACLOUD_PATH="$T/prebuilts/asuite/acloud/$os_arch"
     local AIDEGEN_PATH="$T/prebuilts/asuite/aidegen/$os_arch"
     local ATEST_PATH="$T/prebuilts/asuite/atest/$os_arch"
     export ANDROID_BUILD_PATHS=$ANDROID_BUILD_PATHS:$ACLOUD_PATH:$AIDEGEN_PATH:$ATEST_PATH:

     export PATH=$ANDROID_BUILD_PATHS$PATH

     # out with the duplicate old
     if [ -n $ANDROID_PYTHONPATH ]; then
         export PYTHONPATH=${PYTHONPATH//$ANDROID_PYTHONPATH/}
     fi
     # and in with the new
     export ANDROID_PYTHONPATH=$T/development/python-packages:
     if [ -n $VENDOR_PYTHONPATH  ]; then
         ANDROID_PYTHONPATH=$ANDROID_PYTHONPATH$VENDOR_PYTHONPATH
     fi
     export PYTHONPATH=$ANDROID_PYTHONPATH$PYTHONPATH

     export ANDROID_JAVA_HOME=$(get_abs_build_var ANDROID_JAVA_HOME)
     export JAVA_HOME=$ANDROID_JAVA_HOME
     export ANDROID_JAVA_TOOLCHAIN=$(get_abs_build_var ANDROID_JAVA_TOOLCHAIN)
     export ANDROID_PRE_BUILD_PATHS=$ANDROID_JAVA_TOOLCHAIN:
     export PATH=$ANDROID_PRE_BUILD_PATHS$PATH

     unset ANDROID_PRODUCT_OUT
     export ANDROID_PRODUCT_OUT=$(get_abs_build_var PRODUCT_OUT)
     export OUT=$ANDROID_PRODUCT_OUT

     unset ANDROID_HOST_OUT
     export ANDROID_HOST_OUT=$(get_abs_build_var HOST_OUT)

     unset ANDROID_HOST_OUT_TESTCASES
     export ANDROID_HOST_OUT_TESTCASES=$(get_abs_build_var HOST_OUT_TESTCASES)

     unset ANDROID_TARGET_OUT_TESTCASES
     export ANDROID_TARGET_OUT_TESTCASES=$(get_abs_build_var TARGET_OUT_TESTCASES)

     # needed for building linux on MacOS
     # TODO: fix the path
     #export HOST_EXTRACFLAGS="-I "$T/system/kernel_headers/host_include
 }

 function printconfig()
 {
     local T=$(gettop)
     if [ ! "$T" ]; then
         echo "Couldn't locate the top of the tree.  Try setting TOP." >&2
         return
     fi
     get_build_var report_config
 }

 function set_stuff_for_environment()
 {
     setpaths
     set_sequence_number

     export ANDROID_BUILD_TOP=$(gettop)
     # With this environment variable new GCC can apply colors to warnings/errors
     export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'
 }

 function set_sequence_number()
 {
     export BUILD_ENV_SEQUENCE_NUMBER=13
 }

 # Takes a command name, and check if it's in ENVSETUP_NO_COMPLETION or not.
 function should_add_completion() {
     local cmd="$(basename $1| sed 's/_completion//' |sed 's/\.\(.*\)*sh$//')"
     case :"$ENVSETUP_NO_COMPLETION": in
         *:"$cmd":*)
             return 1
             ;;
     esac
     return 0
 }

 function addcompletions()
 {
     local T dir f

     # Keep us from trying to run in something that's neither bash nor zsh.
     if [ -z "$BASH_VERSION" -a -z "$ZSH_VERSION" ]; then
         return
     fi

     # Keep us from trying to run in bash that's too old.
     if [ -n "$BASH_VERSION" -a ${BASH_VERSINFO[0]} -lt 3 ]; then
         return
     fi

     local completion_files=(
       system/core/adb/adb.bash
       system/core/fastboot/fastboot.bash
       tools/asuite/asuite.sh
     )
     # Completion can be disabled selectively to allow users to use non-standard completion.
     # e.g.
     # ENVSETUP_NO_COMPLETION=adb # -> disable adb completion
     # ENVSETUP_NO_COMPLETION=adb:bit # -> disable adb and bit completion
     for f in ${completion_files[*]}; do
         if [ -f "$f" ] && should_add_completion "$f"; then
             . $f
         fi
     done

     if should_add_completion bit ; then
         complete -C "bit --tab" bit
     fi
     if [ -z "$ZSH_VERSION" ]; then
         # Doesn't work in zsh.
         complete -o nospace -F _croot croot
     fi
     complete -F _lunch lunch

     complete -F _complete_android_module_names gomod
     complete -F _complete_android_module_names m
 }

 function choosetype()
 {
     echo "Build type choices are:"
     echo "     1. release"
     echo "     2. debug"
     echo

     local DEFAULT_NUM DEFAULT_VALUE
     DEFAULT_NUM=1
     DEFAULT_VALUE=release

     export TARGET_BUILD_TYPE=
     local ANSWER
     while [ -z $TARGET_BUILD_TYPE ]
     do
         echo -n "Which would you like? ["$DEFAULT_NUM"] "
         if [ -z "$1" ] ; then
             read ANSWER
         else
             echo $1
             ANSWER=$1
         fi
         case $ANSWER in
         "")
             export TARGET_BUILD_TYPE=$DEFAULT_VALUE
             ;;
         1)
             export TARGET_BUILD_TYPE=release
             ;;
         release)
             export TARGET_BUILD_TYPE=release
             ;;
         2)
             export TARGET_BUILD_TYPE=debug
             ;;
         debug)
             export TARGET_BUILD_TYPE=debug
             ;;
         *)
             echo
             echo "I didn't understand your response.  Please try again."
             echo
             ;;
         esac
         if [ -n "$1" ] ; then
             break
         fi
     done

     build_build_var_cache
     set_stuff_for_environment
     destroy_build_var_cache
 }

 #
 # This function isn't really right:  It chooses a TARGET_PRODUCT
 # based on the list of boards.  Usually, that gets you something
 # that kinda works with a generic product, but really, you should
 # pick a product by name.
 #
 function chooseproduct()
 {
     local default_value
     if [ "x$TARGET_PRODUCT" != x ] ; then
         default_value=$TARGET_PRODUCT
     else
         default_value=aosp_arm
     fi

     export TARGET_BUILD_APPS=
     export TARGET_PRODUCT=
     local ANSWER
     while [ -z "$TARGET_PRODUCT" ]
     do
         echo -n "Which product would you like? [$default_value] "
         if [ -z "$1" ] ; then
             read ANSWER
         else
             echo $1
             ANSWER=$1
         fi

         if [ -z "$ANSWER" ] ; then
             export TARGET_PRODUCT=$default_value
         else
             if check_product $ANSWER
             then
                 export TARGET_PRODUCT=$ANSWER
             else
                 echo "** Not a valid product: $ANSWER"
             fi
         fi
         if [ -n "$1" ] ; then
             break
         fi
     done

     build_build_var_cache
     set_stuff_for_environment
     destroy_build_var_cache
 }

 function choosevariant()
 {
     echo "Variant choices are:"
     local index=1
     local v
     for v in ${VARIANT_CHOICES[@]}
     do
         # The product name is the name of the directory containing
         # the makefile we found, above.
         echo "     $index. $v"
         index=$(($index+1))
     done

     local default_value=eng
     local ANSWER

     export TARGET_BUILD_VARIANT=
     while [ -z "$TARGET_BUILD_VARIANT" ]
     do
         echo -n "Which would you like? [$default_value] "
         if [ -z "$1" ] ; then
             read ANSWER
         else
             echo $1
             ANSWER=$1
         fi

         if [ -z "$ANSWER" ] ; then
             export TARGET_BUILD_VARIANT=$default_value
         elif (echo -n $ANSWER | grep -q -e "^[0-9][0-9]*$") ; then
             if [ "$ANSWER" -le "${#VARIANT_CHOICES[@]}" ] ; then
                 export TARGET_BUILD_VARIANT=${VARIANT_CHOICES[@]:$(($ANSWER-1)):1}
             fi
         else
             if check_variant $ANSWER
             then
                 export TARGET_BUILD_VARIANT=$ANSWER
             else
                 echo "** Not a valid variant: $ANSWER"
             fi
         fi
         if [ -n "$1" ] ; then
             break
         fi
     done
 }

 function choosecombo()
 {
     choosetype $1

     echo
     echo
     chooseproduct $2

     echo
     echo
     choosevariant $3

     echo
     build_build_var_cache
     set_stuff_for_environment
     printconfig
     destroy_build_var_cache
 }

 function add_lunch_combo()
 {
     if [ -n "$ZSH_VERSION" ]; then
         echo -n "${funcfiletrace[1]}: "
     else
         echo -n "${BASH_SOURCE[1]}:${BASH_LINENO[0]}: "
     fi
     echo "add_lunch_combo is obsolete. Use COMMON_LUNCH_CHOICES in your AndroidProducts.mk instead."
 }

 function print_lunch_menu()
 {
     local uname=$(uname)
     local choices=$(TARGET_BUILD_APPS= get_build_var COMMON_LUNCH_CHOICES)
     echo
     echo "You're building on" $uname
     echo
     echo "Lunch menu... pick a combo:"

     local i=1
     local choice
     for choice in $choices
     do
         echo "     $i. $choice"
         i=$(($i+1))
     done

     echo
 }

 function lunch()
 {
     local answer

     if [ "$1" ] ; then
         answer=$1
     else
         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
     elif (echo -n $answer | grep -q -e "^[0-9][0-9]*$")
     then
         local choices=($(TARGET_BUILD_APPS= get_build_var COMMON_LUNCH_CHOICES))
         if [ $answer -le ${#choices[@]} ]
         then
             # array in zsh starts from 1 instead of 0.
             if [ -n "$ZSH_VERSION" ]
             then
                 selection=${choices[$(($answer))]}
             else
                 selection=${choices[$(($answer-1))]}
             fi
         fi
     else
         selection=$answer
     fi

     export TARGET_BUILD_APPS=

     local product variant_and_version variant version

     product=${selection%%-*} # Trim everything after first dash
     variant_and_version=${selection#*-} # Trim everything up to first dash
     if [ "$variant_and_version" != "$selection" ]; then
         variant=${variant_and_version%%-*}
         if [ "$variant" != "$variant_and_version" ]; then
             version=${variant_and_version#*-}
         fi
     fi

     if [ -z "$product" ]
     then
         echo
         echo "Invalid lunch combo: $selection"
         return 1
     fi

     TARGET_PRODUCT=$product \
     TARGET_BUILD_VARIANT=$variant \
     TARGET_PLATFORM_VERSION=$version \
     build_build_var_cache
     if [ $? -ne 0 ]
     then
         return 1
     fi

     export TARGET_PRODUCT=$(get_build_var TARGET_PRODUCT)
     export TARGET_BUILD_VARIANT=$(get_build_var TARGET_BUILD_VARIANT)
     if [ -n "$version" ]; then
       export TARGET_PLATFORM_VERSION=$(get_build_var TARGET_PLATFORM_VERSION)
     else
       unset TARGET_PLATFORM_VERSION
     fi
     export TARGET_BUILD_TYPE=release

     echo

     set_stuff_for_environment
     printconfig
     destroy_build_var_cache
 }

 unset COMMON_LUNCH_CHOICES_CACHE
 # Tab completion for lunch.
 function _lunch()
 {
     local cur prev opts
     COMPREPLY=()
     cur="${COMP_WORDS[COMP_CWORD]}"
     prev="${COMP_WORDS[COMP_CWORD-1]}"

     if [ -z "$COMMON_LUNCH_CHOICES_CACHE" ]; then
         COMMON_LUNCH_CHOICES_CACHE=$(TARGET_BUILD_APPS= get_build_var COMMON_LUNCH_CHOICES)
     fi

     COMPREPLY=( $(compgen -W "${COMMON_LUNCH_CHOICES_CACHE}" -- ${cur}) )
     return 0
 }

 # Configures the build to build unbundled apps.
 # Run tapas with one or more app names (from LOCAL_PACKAGE_NAME)
 function tapas()
 {
     local showHelp="$(echo $* | xargs -n 1 echo | \grep -E '^(help)$' | xargs)"
     local arch="$(echo $* | xargs -n 1 echo | \grep -E '^(arm|x86|mips|arm64|x86_64|mips64)$' | xargs)"
     local variant="$(echo $* | xargs -n 1 echo | \grep -E '^(user|userdebug|eng)$' | xargs)"
     local density="$(echo $* | xargs -n 1 echo | \grep -E '^(ldpi|mdpi|tvdpi|hdpi|xhdpi|xxhdpi|xxxhdpi|alldpi)$' | xargs)"
     local apps="$(echo $* | xargs -n 1 echo | \grep -E -v '^(user|userdebug|eng|arm|x86|mips|arm64|x86_64|mips64|ldpi|mdpi|tvdpi|hdpi|xhdpi|xxhdpi|xxxhdpi|alldpi)$' | xargs)"

     if [ "$showHelp" != "" ]; then
       $(gettop)/build/make/tapasHelp.sh
       return
     fi

     if [ $(echo $arch | wc -w) -gt 1 ]; then
         echo "tapas: Error: Multiple build archs supplied: $arch"
         return
     fi
     if [ $(echo $variant | wc -w) -gt 1 ]; then
         echo "tapas: Error: Multiple build variants supplied: $variant"
         return
     fi
     if [ $(echo $density | wc -w) -gt 1 ]; then
         echo "tapas: Error: Multiple densities supplied: $density"
         return
     fi

     local product=aosp_arm
     case $arch in
       x86)    product=aosp_x86;;
       mips)   product=aosp_mips;;
       arm64)  product=aosp_arm64;;
       x86_64) product=aosp_x86_64;;
       mips64)  product=aosp_mips64;;
     esac
     if [ -z "$variant" ]; then
         variant=eng
     fi
     if [ -z "$apps" ]; then
         apps=all
     fi
     if [ -z "$density" ]; then
         density=alldpi
     fi

     export TARGET_PRODUCT=$product
     export TARGET_BUILD_VARIANT=$variant
     export TARGET_BUILD_DENSITY=$density
     export TARGET_BUILD_TYPE=release
     export TARGET_BUILD_APPS=$apps

     build_build_var_cache
     set_stuff_for_environment
     printconfig
     destroy_build_var_cache
 }

 function gettop
 {
     local TOPFILE=build/make/core/envsetup.mk
     if [ -n "$TOP" -a -f "$TOP/$TOPFILE" ] ; then
         # The following circumlocution ensures we remove symlinks from TOP.
         (cd $TOP; PWD= /bin/pwd)
     else
         if [ -f $TOPFILE ] ; then
             # The following circumlocution (repeated below as well) ensures
             # that we record the true directory name and not one that is
             # faked up with symlink names.
             PWD= /bin/pwd
         else
             local HERE=$PWD
             local T=
             while [ \( ! \( -f $TOPFILE \) \) -a \( $PWD != "/" \) ]; do
                 \cd ..
                 T=`PWD= /bin/pwd -P`
             done
             \cd $HERE
             if [ -f "$T/$TOPFILE" ]; then
                 echo $T
             fi
         fi
     fi
 }

 function croot()
 {
     local T=$(gettop)
     if [ "$T" ]; then
         if [ "$1" ]; then
             \cd $(gettop)/$1
         else
             \cd $(gettop)
         fi
     else
         echo "Couldn't locate the top of the tree.  Try setting TOP."
     fi
 }

 function _croot()
 {
     local T=$(gettop)
     if [ "$T" ]; then
         local cur="${COMP_WORDS[COMP_CWORD]}"
         k=0
         for c in $(compgen -d ${T}/${cur}); do
             COMPREPLY[k++]=${c#${T}/}/
         done
     fi
 }

 function cproj()
 {
     local TOPFILE=build/make/core/envsetup.mk
     local HERE=$PWD
     local T=
     while [ \( ! \( -f $TOPFILE \) \) -a \( $PWD != "/" \) ]; do
         T=$PWD
         if [ -f "$T/Android.mk" ]; then
             \cd $T
             return
         fi
         \cd ..
     done
     \cd $HERE
     echo "can't find Android.mk"
 }

 # simplified version of ps; output in the form
 # <pid> <procname>
 function qpid() {
     local prepend=''
     local append=''
     if [ "$1" = "--exact" ]; then
         prepend=' '
         append='$'
         shift
     elif [ "$1" = "--help" -o "$1" = "-h" ]; then
         echo "usage: qpid [[--exact] <process name|pid>"
         return 255
     fi

     local EXE="$1"
     if [ "$EXE" ] ; then
         qpid | \grep "$prepend$EXE$append"
     else
         adb shell ps \
             | tr -d '\r' \
             | sed -e 1d -e 's/^[^ ]* *\([0-9]*\).* \([^ ]*\)$/\1 \2/'
     fi
 }

 # coredump_setup - enable core dumps globally for any process
 #                  that has the core-file-size limit set correctly
 #
 # NOTE: You must call also coredump_enable for a specific process
 #       if its core-file-size limit is not set already.
 # NOTE: Core dumps are written to ramdisk; they will not survive a reboot!

 function coredump_setup()
 {
     echo "Getting root...";
     adb root;
     adb wait-for-device;

     echo "Remounting root partition read-write...";
     adb shell mount -w -o remount -t rootfs rootfs;
     sleep 1;
     adb wait-for-device;
     adb shell mkdir -p /cores;
     adb shell mount -t tmpfs tmpfs /cores;
     adb shell chmod 0777 /cores;

     echo "Granting SELinux permission to dump in /cores...";
     adb shell restorecon -R /cores;

     echo "Set core pattern.";
     adb shell 'echo /cores/core.%p > /proc/sys/kernel/core_pattern';

     echo "Done."
 }

 # coredump_enable - enable core dumps for the specified process
 # $1 = PID of process (e.g., $(pid mediaserver))
 #
 # NOTE: coredump_setup must have been called as well for a core
 #       dump to actually be generated.

 function coredump_enable()
 {
     local PID=$1;
     if [ -z "$PID" ]; then
         printf "Expecting a PID!\n";
         return;
     fi;
     echo "Setting core limit for $PID to infinite...";
     adb shell /system/bin/ulimit -p $PID -c unlimited
 }

 # core - send SIGV and pull the core for process
 # $1 = PID of process (e.g., $(pid mediaserver))
 #
 # NOTE: coredump_setup must be called once per boot for core dumps to be
 #       enabled globally.

 function core()
 {
     local PID=$1;

     if [ -z "$PID" ]; then
         printf "Expecting a PID!\n";
         return;
     fi;

     local CORENAME=core.$PID;
     local COREPATH=/cores/$CORENAME;
     local SIG=SEGV;

     coredump_enable $1;

     local done=0;
     while [ $(adb shell "[ -d /proc/$PID ] && echo -n yes") ]; do
         printf "\tSending SIG%s to %d...\n" $SIG $PID;
         adb shell kill -$SIG $PID;
         sleep 1;
     done;

     adb shell "while [ ! -f $COREPATH ] ; do echo waiting for $COREPATH to be generated; sleep 1; done"
     echo "Done: core is under $COREPATH on device.";
 }

 # systemstack - dump the current stack trace of all threads in the system process
 # to the usual ANR traces file
 function systemstack()
 {
     stacks system_server
 }

 # Read the ELF header from /proc/$PID/exe to determine if the process is
 # 64-bit.
 function is64bit()
 {
     local PID="$1"
     if [ "$PID" ] ; then
         if [[ "$(adb shell cat /proc/$PID/exe | xxd -l 1 -s 4 -p)" -eq "02" ]] ; then
             echo "64"
         else
             echo ""
         fi
     else
         echo ""
     fi
 }

 case `uname -s` in
     Darwin)
         function sgrep()
         {
             find -E . -name .repo -prune -o -name .git -prune -o  -type f -iregex '.*\.(c|h|cc|cpp|hpp|S|java|xml|sh|mk|aidl|vts)' \
                 -exec grep --color -n "$@" {} +
         }

         ;;
     *)
         function sgrep()
         {
             find . -name .repo -prune -o -name .git -prune -o  -type f -iregex '.*\.\(c\|h\|cc\|cpp\|hpp\|S\|java\|xml\|sh\|mk\|aidl\|vts\)' \
                 -exec grep --color -n "$@" {} +
         }
         ;;
 esac

 function gettargetarch
 {
     get_build_var TARGET_ARCH
 }

 function ggrep()
 {
     find . -name .repo -prune -o -name .git -prune -o -name out -prune -o -type f -name "*\.gradle" \
         -exec grep --color -n "$@" {} +
 }

 function jgrep()
 {
     find . -name .repo -prune -o -name .git -prune -o -name out -prune -o -type f -name "*\.java" \
         -exec grep --color -n "$@" {} +
 }

 function cgrep()
 {
     find . -name .repo -prune -o -name .git -prune -o -name out -prune -o -type f \( -name '*.c' -o -name '*.cc' -o -name '*.cpp' -o -name '*.h' -o -name '*.hpp' \) \
         -exec grep --color -n "$@" {} +
 }

 function resgrep()
 {
     local dir
     for dir in `find . -name .repo -prune -o -name .git -prune -o -name out -prune -o -name res -type d`; do
         find $dir -type f -name '*\.xml' -exec grep --color -n "$@" {} +
     done
 }

 function mangrep()
 {
     find . -name .repo -prune -o -name .git -prune -o -path ./out -prune -o -type f -name 'AndroidManifest.xml' \
         -exec grep --color -n "$@" {} +
 }

 function owngrep()
 {
     find . -name .repo -prune -o -name .git -prune -o -path ./out -prune -o -type f -name 'OWNERS' \
         -exec grep --color -n "$@" {} +
 }

 function sepgrep()
 {
     find . -name .repo -prune -o -name .git -prune -o -path ./out -prune -o -name sepolicy -type d \
         -exec grep --color -n -r --exclude-dir=\.git "$@" {} +
 }

 function rcgrep()
 {
     find . -name .repo -prune -o -name .git -prune -o -name out -prune -o -type f -name "*\.rc*" \
         -exec grep --color -n "$@" {} +
 }

 case `uname -s` in
     Darwin)
         function mgrep()
         {
             find -E . -name .repo -prune -o -name .git -prune -o -path ./out -prune -o \( -iregex '.*/(Makefile|Makefile\..*|.*\.make|.*\.mak|.*\.mk|.*\.bp)' -o -regex '(.*/)?soong/[^/]*.go' \) -type f \
                 -exec grep --color -n "$@" {} +
         }

         function treegrep()
         {
             find -E . -name .repo -prune -o -name .git -prune -o -type f -iregex '.*\.(c|h|cpp|hpp|S|java|xml)' \
                 -exec grep --color -n -i "$@" {} +
         }

         ;;
     *)
         function mgrep()
         {
             find . -name .repo -prune -o -name .git -prune -o -path ./out -prune -o \( -regextype posix-egrep -iregex '(.*\/Makefile|.*\/Makefile\..*|.*\.make|.*\.mak|.*\.mk|.*\.bp)' -o -regextype posix-extended -regex '(.*/)?soong/[^/]*.go' \) -type f \
                 -exec grep --color -n "$@" {} +
         }

         function treegrep()
         {
             find . -name .repo -prune -o -name .git -prune -o -regextype posix-egrep -iregex '.*\.(c|h|cpp|hpp|S|java|xml)' -type f \
                 -exec grep --color -n -i "$@" {} +
         }

         ;;
 esac

 function getprebuilt
 {
     get_abs_build_var ANDROID_PREBUILTS
 }

 function tracedmdump()
 {
     local T=$(gettop)
     if [ ! "$T" ]; then
         echo "Couldn't locate the top of the tree.  Try setting TOP."
         return
     fi
     local prebuiltdir=$(getprebuilt)
     local arch=$(gettargetarch)
     local KERNEL=$T/prebuilts/qemu-kernel/$arch/vmlinux-qemu

     local TRACE=$1
     if [ ! "$TRACE" ] ; then
         echo "usage:  tracedmdump  tracename"
         return
     fi

     if [ ! -r "$KERNEL" ] ; then
         echo "Error: cannot find kernel: '$KERNEL'"
         return
     fi

     local BASETRACE=$(basename $TRACE)
     if [ "$BASETRACE" = "$TRACE" ] ; then
         TRACE=$ANDROID_PRODUCT_OUT/traces/$TRACE
     fi

     echo "post-processing traces..."
     rm -f $TRACE/qtrace.dexlist
     post_trace $TRACE
     if [ $? -ne 0 ]; then
         echo "***"
         echo "*** Error: malformed trace.  Did you remember to exit the emulator?"
         echo "***"
         return
     fi
     echo "generating dexlist output..."
     /bin/ls $ANDROID_PRODUCT_OUT/system/framework/*.jar $ANDROID_PRODUCT_OUT/system/app/*.apk $ANDROID_PRODUCT_OUT/data/app/*.apk 2>/dev/null | xargs dexlist > $TRACE/qtrace.dexlist
     echo "generating dmtrace data..."
     q2dm -r $ANDROID_PRODUCT_OUT/symbols $TRACE $KERNEL $TRACE/dmtrace || return
     echo "generating html file..."
     dmtracedump -h $TRACE/dmtrace >| $TRACE/dmtrace.html || return
     echo "done, see $TRACE/dmtrace.html for details"
     echo "or run:"
     echo "    traceview $TRACE/dmtrace"
 }

 # communicate with a running device or emulator, set up necessary state,
 # and run the hat command.
 function runhat()
 {
     # process standard adb options
     local adbTarget=""
     if [ "$1" = "-d" -o "$1" = "-e" ]; then
         adbTarget=$1
         shift 1
     elif [ "$1" = "-s" ]; then
         adbTarget="$1 $2"
         shift 2
     fi
     local adbOptions=${adbTarget}
     #echo adbOptions = ${adbOptions}

     # runhat options
     local targetPid=$1

     if [ "$targetPid" = "" ]; then
         echo "Usage: runhat [ -d | -e | -s serial ] target-pid"
         return
     fi

     # confirm hat is available
     if [ -z $(which hat) ]; then
         echo "hat is not available in this configuration."
         return
     fi

     # issue "am" command to cause the hprof dump
     local devFile=/data/local/tmp/hprof-$targetPid
     echo "Poking $targetPid and waiting for data..."
     echo "Storing data at $devFile"
     adb ${adbOptions} shell am dumpheap $targetPid $devFile
     echo "Press enter when logcat shows \"hprof: heap dump completed\""
     echo -n "> "
     read

     local localFile=/tmp/$$-hprof

     echo "Retrieving file $devFile..."
     adb ${adbOptions} pull $devFile $localFile

     adb ${adbOptions} shell rm $devFile

     echo "Running hat on $localFile"
     echo "View the output by pointing your browser at http://localhost:7000/"
     echo ""
     hat -JXmx512m $localFile
 }

 function getbugreports()
 {
     local reports=(`adb shell ls /sdcard/bugreports | tr -d '\r'`)

     if [ ! "$reports" ]; then
         echo "Could not locate any bugreports."
         return
     fi

     local report
     for report in ${reports[@]}
     do
         echo "/sdcard/bugreports/${report}"
         adb pull /sdcard/bugreports/${report} ${report}
         gunzip ${report}
     done
 }

 function getsdcardpath()
 {
     adb ${adbOptions} shell echo -n \$\{EXTERNAL_STORAGE\}
 }

 function getscreenshotpath()
 {
     echo "$(getsdcardpath)/Pictures/Screenshots"
 }

 function getlastscreenshot()
 {
     local screenshot_path=$(getscreenshotpath)
     local screenshot=`adb ${adbOptions} ls ${screenshot_path} | grep Screenshot_[0-9-]*.*\.png | sort -rk 3 | cut -d " " -f 4 | head -n 1`
     if [ "$screenshot" = "" ]; then
         echo "No screenshots found."
         return
     fi
     echo "${screenshot}"
     adb ${adbOptions} pull ${screenshot_path}/${screenshot}
 }

 function startviewserver()
 {
     local port=4939
     if [ $# -gt 0 ]; then
             port=$1
     fi
     adb shell service call window 1 i32 $port
 }

 function stopviewserver()
 {
     adb shell service call window 2
 }

 function isviewserverstarted()
 {
     adb shell service call window 3
 }

 function key_home()
 {
     adb shell input keyevent 3
 }

 function key_back()
 {
     adb shell input keyevent 4
 }

 function key_menu()
 {
     adb shell input keyevent 82
 }

 function smoketest()
 {
     if [ ! "$ANDROID_PRODUCT_OUT" ]; then
         echo "Couldn't locate output files.  Try running 'lunch' first." >&2
         return
     fi
     local T=$(gettop)
     if [ ! "$T" ]; then
         echo "Couldn't locate the top of the tree.  Try setting TOP." >&2
         return
     fi

     (\cd "$T" && mmm tests/SmokeTest) &&
       adb uninstall com.android.smoketest > /dev/null &&
       adb uninstall com.android.smoketest.tests > /dev/null &&
       adb install $ANDROID_PRODUCT_OUT/data/app/SmokeTestApp.apk &&
       adb install $ANDROID_PRODUCT_OUT/data/app/SmokeTest.apk &&
       adb shell am instrument -w com.android.smoketest.tests/android.test.InstrumentationTestRunner
 }

 # simple shortcut to the runtest command
 function runtest()
 {
     local T=$(gettop)
     if [ ! "$T" ]; then
         echo "Couldn't locate the top of the tree.  Try setting TOP." >&2
         return
     fi
     ("$T"/development/testrunner/runtest.py $@)
 }

 function godir () {
     if [[ -z "$1" ]]; then
         echo "Usage: godir <regex>"
         return
     fi
     local T=$(gettop)
     local FILELIST
     if [ ! "$OUT_DIR" = "" ]; then
         mkdir -p $OUT_DIR
         FILELIST=$OUT_DIR/filelist
     else
         FILELIST=$T/filelist
     fi
     if [[ ! -f $FILELIST ]]; then
         echo -n "Creating index..."
         (\cd $T; find . -wholename ./out -prune -o -wholename ./.repo -prune -o -type f > $FILELIST)
         echo " Done"
         echo ""
     fi
     local lines
     lines=($(\grep "$1" $FILELIST | sed -e 's/\/[^/]*$//' | sort | uniq))
     if [[ ${#lines[@]} = 0 ]]; then
         echo "Not found"
         return
     fi
     local pathname
     local choice
     if [[ ${#lines[@]} > 1 ]]; then
         while [[ -z "$pathname" ]]; do
             local index=1
             local line
             for line in ${lines[@]}; do
                 printf "%6s %s\n" "[$index]" $line
                 index=$(($index + 1))
             done
             echo
             echo -n "Select one: "
             unset choice
             read choice
             if [[ $choice -gt ${#lines[@]} || $choice -lt 1 ]]; then
                 echo "Invalid choice"
                 continue
             fi
             pathname=${lines[@]:$(($choice-1)):1}
         done
     else
         pathname=${lines[@]:0:1}
     fi
     \cd $T/$pathname
 }

 # Update module-info.json in out.
 function refreshmod() {
     if [ ! "$ANDROID_PRODUCT_OUT" ]; then
         echo "No ANDROID_PRODUCT_OUT. Try running 'lunch' first." >&2
         return 1
     fi

     echo "Refreshing modules (building module-info.json). Log at $ANDROID_PRODUCT_OUT/module-info.json.build.log." >&2

     # for the output of the next command
     mkdir -p $ANDROID_PRODUCT_OUT || return 1

     # Note, can't use absolute path because of the way make works.
     m out/target/product/$(get_build_var TARGET_DEVICE)/module-info.json \
         > $ANDROID_PRODUCT_OUT/module-info.json.build.log 2>&1
 }

 # List all modules for the current device, as cached in module-info.json. If any build change is
 # made and it should be reflected in the output, you should run 'refreshmod' first.
 function allmod() {
     if [ ! "$ANDROID_PRODUCT_OUT" ]; then
         echo "No ANDROID_PRODUCT_OUT. Try running 'lunch' first." >&2
         return 1
     fi

     if [ ! -f "$ANDROID_PRODUCT_OUT/module-info.json" ]; then
         echo "Could not find module-info.json. It will only be built once, and it can be updated with 'refreshmod'" >&2
         refreshmod || return 1
     fi

     python -c "import json; print '\n'.join(sorted(json.load(open('$ANDROID_PRODUCT_OUT/module-info.json')).keys()))"
 }

 # Get the path of a specific module in the android tree, as cached in module-info.json. If any build change
 # is made, and it should be reflected in the output, you should run 'refreshmod' first.
 function pathmod() {
     if [ ! "$ANDROID_PRODUCT_OUT" ]; then
         echo "No ANDROID_PRODUCT_OUT. Try running 'lunch' first." >&2
         return 1
     fi

     if [[ $# -ne 1 ]]; then
         echo "usage: pathmod <module>" >&2
         return 1
     fi

     if [ ! -f "$ANDROID_PRODUCT_OUT/module-info.json" ]; then
         echo "Could not find module-info.json. It will only be built once, and it can be updated with 'refreshmod'" >&2
         refreshmod || return 1
     fi

     local relpath=$(python -c "import json, os
 module = '$1'
 module_info = json.load(open('$ANDROID_PRODUCT_OUT/module-info.json'))
 if module not in module_info:
     exit(1)
 print module_info[module]['path'][0]" 2>/dev/null)

     if [ -z "$relpath" ]; then
         echo "Could not find module '$1' (try 'refreshmod' if there have been build changes?)." >&2
         return 1
     else
         echo "$ANDROID_BUILD_TOP/$relpath"
     fi
 }

 # Go to a specific module in the android tree, as cached in module-info.json. If any build change
 # is made, and it should be reflected in the output, you should run 'refreshmod' first.
 function gomod() {
     if [[ $# -ne 1 ]]; then
         echo "usage: gomod <module>" >&2
         return 1
     fi

     local path="$(pathmod $@)"
     if [ -z "$path" ]; then
         return 1
     fi
     cd $path
 }

 function _complete_android_module_names() {
     local word=${COMP_WORDS[COMP_CWORD]}
     COMPREPLY=( $(allmod | grep -E "^$word") )
 }

 # Print colored exit condition
 function pez {
     "$@"
     local retval=$?
     if [ $retval -ne 0 ]
     then
         echo $'\E'"[0;31mFAILURE\e[00m"
     else
         echo $'\E'"[0;32mSUCCESS\e[00m"
     fi
     return $retval
 }

 function get_make_command()
 {
     # If we're in the top of an Android tree, use soong_ui.bash instead of make
     if [ -f build/soong/soong_ui.bash ]; then
         # Always use the real make if -C is passed in
         for arg in "$@"; do
             if [[ $arg == -C* ]]; then
                 echo command make
                 return
             fi
         done
         echo build/soong/soong_ui.bash --make-mode
     else
         echo command make
     fi
 }

 function _wrap_build()
 {
     if [[ "${ANDROID_QUIET_BUILD:-}" == true ]]; then
       "$@"
       return $?
     fi
     local start_time=$(date +"%s")
     "$@"
     local ret=$?
     local end_time=$(date +"%s")
     local tdiff=$(($end_time-$start_time))
     local hours=$(($tdiff / 3600 ))
     local mins=$((($tdiff % 3600) / 60))
     local secs=$(($tdiff % 60))
     local ncolors=$(tput colors 2>/dev/null)
     if [ -n "$ncolors" ] && [ $ncolors -ge 8 ]; then
         color_failed=$'\E'"[0;31m"
         color_success=$'\E'"[0;32m"
         color_reset=$'\E'"[00m"
     else
         color_failed=""
         color_success=""
         color_reset=""
     fi
     echo
     if [ $ret -eq 0 ] ; then
         echo -n "${color_success}#### build completed successfully "
     else
         echo -n "${color_failed}#### failed to build some targets "
     fi
     if [ $hours -gt 0 ] ; then
         printf "(%02g:%02g:%02g (hh:mm:ss))" $hours $mins $secs
     elif [ $mins -gt 0 ] ; then
         printf "(%02g:%02g (mm:ss))" $mins $secs
     elif [ $secs -gt 0 ] ; then
         printf "(%s seconds)" $secs
     fi
     echo " ####${color_reset}"
     echo
     return $ret
 }

 function _trigger_build()
 (
     local -r bc="$1"; shift
     if T="$(gettop)"; then
       _wrap_build "$T/build/soong/soong_ui.bash" --build-mode --${bc} --dir="$(pwd)" "$@"
     else
       echo "Couldn't locate the top of the tree. Try setting TOP."
     fi
 )

 function m()
 (
     _trigger_build "all-modules" "$@"
 )

 function mm()
 (
     _trigger_build "modules-in-a-dir-no-deps" "$@"
 )

 function mmm()
 (
     _trigger_build "modules-in-dirs-no-deps" "$@"
 )

 function mma()
 (
     _trigger_build "modules-in-a-dir" "$@"
 )

 function mmma()
 (
     _trigger_build "modules-in-dirs" "$@"
 )

 function make()
 {
     _wrap_build $(get_make_command "$@") "$@"
 }

 function provision()
 {
     if [ ! "$ANDROID_PRODUCT_OUT" ]; then
         echo "Couldn't locate output files.  Try running 'lunch' first." >&2
         return 1
     fi
     if [ ! -e "$ANDROID_PRODUCT_OUT/provision-device" ]; then
         echo "There is no provisioning script for the device." >&2
         return 1
     fi

     # Check if user really wants to do this.
     if [ "$1" = "--no-confirmation" ]; then
         shift 1
     else
         echo "This action will reflash your device."
         echo ""
         echo "ALL DATA ON THE DEVICE WILL BE IRREVOCABLY ERASED."
         echo ""
         echo -n "Are you sure you want to do this (yes/no)? "
         read
         if [[ "${REPLY}" != "yes" ]] ; then
             echo "Not taking any action. Exiting." >&2
             return 1
         fi
     fi
     "$ANDROID_PRODUCT_OUT/provision-device" "$@"
 }

 # Zsh needs bashcompinit called to support bash-style completion.
 function enable_zsh_completion() {
     # Don't override user's options if bash-style completion is already enabled.
     if ! declare -f complete >/dev/null; then
         autoload -U compinit && compinit
         autoload -U bashcompinit && bashcompinit
     fi
 }

 function validate_current_shell() {
     local current_sh="$(ps -o command -p $$)"
     case "$current_sh" in
         *bash*)
             function check_type() { type -t "$1"; }
             ;;
         *zsh*)
             function check_type() { type "$1"; }
             enable_zsh_completion ;;
         *)
             echo -e "WARNING: Only bash and zsh are supported.\nUse of other shell would lead to erroneous results."
             ;;
     esac
 }

 # Execute the contents of any vendorsetup.sh files we can find.
 # Unless we find an allowed-vendorsetup_sh-files file, in which case we'll only
 # load those.
 #
 # This allows loading only approved vendorsetup.sh files
 function source_vendorsetup() {
     unset VENDOR_PYTHONPATH
     allowed=
     for f in $(find -L device vendor product -maxdepth 4 -name 'allowed-vendorsetup_sh-files' 2>/dev/null | sort); do
         if [ -n "$allowed" ]; then
             echo "More than one 'allowed_vendorsetup_sh-files' file found, not including any vendorsetup.sh files:"
             echo "  $allowed"
             echo "  $f"
             return
         fi
         allowed="$f"
     done

     allowed_files=
     [ -n "$allowed" ] && allowed_files=$(cat "$allowed")
     for dir in device vendor product; do
         for f in $(test -d $dir && \
             find -L $dir -maxdepth 4 -name 'vendorsetup.sh' 2>/dev/null | sort); do

             if [[ -z "$allowed" || "$allowed_files" =~ $f ]]; then
                 echo "including $f"; . "$f"
             else
                 echo "ignoring $f, not in $allowed"
             fi
         done
     done
 }

 validate_current_shell
 source_vendorsetup
 addcompletions