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89 lines
3.2 KiB
89 lines
3.2 KiB
#!/bin/sh
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LANG=C
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if [ "$1" == "-h" ]
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then
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cat <<- EOH
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Usage: $0 [-p] [folder]
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-p option prints out unused resources, otherwise a total count is printed
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folder option causes only that app folder to be scanned, default is to scan all folders onder apps/
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EOH
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exit
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fi
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showall=no
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if [ "$1" == "-p" ]
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then
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showall=yes
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shift
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fi
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apps=$1
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if [ "$apps" == "" ]
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then
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apps=$ANDROID_BUILD_TOP/packages/apps/*
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fi
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for app in $apps
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do
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echo '-----------------------------------------------------------'
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if [ "$app" == "." ]
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then
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app=$(pwd)
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fi
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if [ -d $app/res ]
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then
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appname=$(basename $app)
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iappname=$(grep LOCAL_PACKAGE_NAME $app/Android.mk | sed 's/.*:= *//')
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resources=
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for res in $(echo $app/res/* $(find $ANDROID_BUILD_TOP/vendor -type d -wholename $ANDROID_BUILD_TOP/vendor/*/$appname/res | grep overlay))
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do
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resources="$resources $(echo $res | grep -v '\-mcc\|[a-z]*-[a-z][a-z]$\|[a-z]*-[a-z][a-z]-.*')"
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done
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sources=$app/src
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if [ -d $app/tests ]
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then
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sources="$sources $app/tests"
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fi
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if [ -d $app/samples ]
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then
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sources="$sources $app/samples"
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fi
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# find the R.java file that contains all the generated resource identifiers
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rDotJava=$(find $ANDROID_BUILD_TOP/out/target/common/obj/APPS/${iappname}_intermediates/ -name R.java)
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# Simplistically process the content of the file to get the names of all the constants,
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# and try to find a reference to each constant.
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# First take all the input files and concatenate them, removing newlines. This allows us to
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# find expressions that are broken up over multiple lines, i.e. R.drawable.\nsomeconstant
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find $resources $sources $app/AndroidManifest.xml -type f -print |xargs cat | tr -d '\n ' > /tmp/everything$$
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# Now look for each of the constants in the contatenated file.
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for i in $(cat $rDotJava | grep "\w*=0x\d*" | sed 's/ *public static final int //' | sed 's/=0x.*//')
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do
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# Since periods in the names get translated to underscores in R.java, and you can actually
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# refer to such constants from java by using an underscore instead of a period, we also
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# replace all underscores with a pattern that will match periods and underscores.
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p=$(echo $i | sed 's/_/[\\._]/g')
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echo $i $(grep -cw R\\..*\\.$i\\\|@style/$p\\\|@drawable/$p\\\|@anim/$p\\\|@color/$p\\\|@xml/$p\\\|@layout/$p\\\|@menu/$p\\\|@+id/$p\\\|@array/$p\\\|@string/$p\\\|@mipmap/$p\\\|@integer/$p\\\|@dimen/$p\\\|\[a-z\]\*:$p\\\|enumname=\"$p\\\|\<item\>$p\< < /tmp/everything$$)
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done | grep " 0$" | {
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# this block gets as its input a list of constants for which no references were found, one per line
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if [ "$showall" == "yes" ]
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then
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echo $app
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cat
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else
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count=$(wc -l)
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if [ "$count" != "0" ]
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then
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echo $app: $count unused resources
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fi
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fi
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}
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rm /tmp/everything$$
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fi
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done
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