Add tool to determine if products can be lunched

#!/bin/bash

# TODO: Currently only checks trunk_staging. Should check trunk_staging first,

#       then use the product-specfic releases. Only applies to -c though.

function Help() {

cat <<@EOF@

Usage: lunchable [options]

Lists products that have no functioning lunch combo.

options:

-c    prints all failing lunch combos for all targets;

-w    why? Prints the error message after each failed lunch combo. Only

      works with -c

@EOF@

}

complete=0

why=0

while getopts "cwh" option; do

  case $option in

    c)

      complete=1;;

    w)

      why=1;;

    h)

      Help

      exit;;

  esac

done

# Getting all named products can fail if we haven't lunched anything

source $(pwd)/build/envsetup.sh &> /dev/null

all_named_products=( $(get_build_var all_named_products 2> /dev/null) )

if [[ $? -ne 0 ]]; then

  echo "get_build_var all_named_products failed. Lunch something first?" >&2

  exit 1

fi

total_products=${#all_named_products[@]}

current_product=0

for product in "${all_named_products[@]}"; do

  (( current_product += 1 ))

  single_pass=0

  printf " Checking ${current_product}/${total_products} \r" >&2

  for release in trunk_staging; do

    for variant in eng user userdebug; do

      lunchcombo="${product}-${release}-${variant}"

      lunch_error="$(lunch $lunchcombo 2>&1 > /dev/null)"

      if [[ $? -ne 0 ]]; then

        # Lunch failed

        if [[ $complete -eq 1 ]]; then

          echo -e "${product} : ${lunchcombo}"

          if [[ $why -eq 1 ]]; then

            echo -e "$(sed 's/^/    /g' <<<$lunch_error)"

          fi

        fi

      elif [[ $complete -ne 1 ]]; then

        single_pass=1

        break # skip variant

      fi

    done

    if [[ $single_pass -eq 1 ]]; then

      break # skip release

    fi

  done

  if [[ $complete -eq 0 ]] && [[ $single_pass -eq 0 ]]; then

    echo "${product}"

  fi

done