diff --git a/scripts/Android.bp b/scripts/Android.bp index 4c847a121..4773579e3 100644 --- a/scripts/Android.bp +++ b/scripts/Android.bp @@ -188,3 +188,8 @@ python_binary_host { "get_clang_version.py", ], } + +sh_binary_host { + name: "list_image", + src: "list_image.sh", +} diff --git a/scripts/list_image.sh b/scripts/list_image.sh new file mode 100755 index 000000000..0542fa610 --- /dev/null +++ b/scripts/list_image.sh @@ -0,0 +1,51 @@ +#! /bin/bash + +# Recursively list Android image directory. +set -eu +set -o pipefail + +function die() { format=$1; shift; printf "$format\n" "$@"; exit 1; } + +# Figure out the filer utility. +declare filer= +[[ -z "${ANDROID_HOST_OUT:-}" ]] || filer=${ANDROID_HOST_OUT}/bin/debugfs_static +if [[ "${1:-}" =~ --debugfs_path=(.*) ]]; then + filer=${BASH_REMATCH[1]} + shift +fi +if [[ -z "${filer:-}" ]]; then + maybefiler="$(dirname $0)/debugfs_static" + [[ ! -x "$maybefiler" ]] || filer="$maybefiler" +fi + +(( $# >0 )) || die "%s [--debugfs_path=] IMAGE" "$0" + +[[ -n "${filer:-}" ]] || die "cannot locate 'debugfs' executable: \ +--debugfs_path= is missing, ANDROID_HOST_OUT is not set, \ +and 'debugfs_static' is not colocated with this script" +declare -r image="$1" + +function dolevel() { + printf "%s/\n" "$1" + # Each line of the file output consists of 6 fields separated with '/'. + # The second one contains the file's attributes, and the fifth its name. + $filer -R "ls -l -p $1" "$image" 2>/dev/null |\ + sed -nr 's|^/.*/(.*)/.*/.*/(.+)/.*/$|\2 \1|p' | LANG=C sort | \ + while read name attr; do + [[ "$name" != '.' && "$name" != '..' ]] || continue + path="$1/$name" + # If the second char of the attributes is '4', it is a directory. + if [[ $attr =~ ^.4 ]]; then + dolevel "$path" + else + printf "%s\n" "$path" + fi + done +} + +# The filer always prints its version on stderr, so we are going +# to redirect it to the bit bucket. On the other hand, the filer's +# return code on error is still 0. Let's run it once to without +# redirecting stderr to see that there is at least one entry. +$filer -R "ls -l -p" "$image" | grep -q -m1 -P '^/.*/.*/.*/.*/.+/.*/$' +dolevel .