Merge "Recursively list Android image contents."

        "get_clang_version.py",

    ],

}

sh_binary_host {

    name: "list_image",

    src: "list_image.sh",

}

#! /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=<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 .