Add test_image script for checking that dependencies in image are sane

src/scripts/test_image

+#!/bin/bash
+
+# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# Load common constants.  This should be the first executable line.
+# The path to common.sh should be relative to your script's location.
+. "$(dirname "$0")/common.sh"
+
+# Flags
+DEFINE_string target "x86" \
+  "The target architecture to test. One of { x86, arm }."
+DEFINE_string root ""      \
+  "The root file system to check."
+
+# Parse command line
+FLAGS "$@" || exit 1
+eval set -- "${FLAGS_ARGV}"
+
+# Die on any errors
+set -e
+
+# Check all parts of a pipe
+set -o pipefail
+
+ROOT="$FLAGS_root"
+if [[ -z "$ROOT" ]]; then
+  echo "Error: --root is required."
+  exit 1
+fi
+if [[ ! -d "$ROOT" ]]; then
+  echo "Error: Root FS does not exist ($ROOT)"
+  exit 1
+fi
+
+EXITCODE=0
+
+BINARIES="$ROOT/usr/bin/Xorg
+          $ROOT/usr/bin/chromeos-wm
+          $ROOT/boot/vmlinuz
+          $ROOT/sbin/session_manager
+          $ROOT/bin/sed"
+
+if [[ $FLAGS_target != arm ]]; then
+  # chrome isn't present on arm
+  BINARIES="$BINARIES
+            $ROOT/opt/google/chrome/chrome"
+fi
+
+for i in $BINARIES; do
+  if ! [[ -x $i ]]; then
+    echo test_image: Cannot find $i
+    EXITCODE=1
+  fi
+done
+
+LIBS="`sudo find $ROOT -type f -name '*.so*'`"
+
+# Check that all .so files, plus the binaries, have the appropriate dependencies
+if ! "${SCRIPTS_DIR}/check_deps" "$ROOT" $BINARIES $LIBS; then
+  echo test_image: Failed dependency check
+  EXITCODE=1
+fi
+
+exit $EXITCODE