Development script for testing changes locally.

Several ebuilds depend on vboot_reference, either by checking out the
vboot_reference repo and building it or by using the installed libs
during build time. To simplify catching problems in other ebuilds
while changing code in vboot_reference, this patch adds a new script
that tries to emerge all the affected ebuilds.

BUG=None
BRANCH=None
TEST=`../platform/vboot_reference/emerge_test.sh` inside and outside the chroot

Change-Id: I0e9e61c35cbb191e0dafa5f8fa1e74d80bb7f8d4
Reviewed-on: https://chromium-review.googlesource.com/214635
Tested-by: Alex Deymo <deymo@chromium.org>
Reviewed-by: Bill Richardson <wfrichar@chromium.org>

emerge_test.sh

@@ -0,0 +1,59 @@
+#!/bin/sh
+# Copyright 2014 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.
+
+# Tests emerging all the ebuilds that use vboot_reference either as an
+# ebuild dependency or by checking out the code and compiling it in a
+# different ebuild. This is meant to be run from the chroot as part of testing
+# a new change in vboot_reference.
+
+# Required ebuilds:
+TEST_EBUILDS="
+  sys-boot/chromeos-bootimage
+  sys-boot/coreboot
+  sys-boot/depthcharge
+  chromeos-base/chromeos-cryptohome
+  chromeos-base/chromeos-ec
+  chromeos-base/chromeos-installer
+  chromeos-base/chromeos-initramfs
+  chromeos-base/chromeos-login
+  chromeos-base/update_engine
+  chromeos-base/vboot_reference
+  chromeos-base/verity
+"
+
+set -e
+
+# Check running inside the chroot.
+if [ ! -e /etc/cros_chroot_version ]; then
+  echo "You must run this inside the chroot." >&2
+  exit 1
+fi
+
+# Detect the target board.
+if [ "x${BOARD}" == "x" ]; then
+  if [ -e ~/trunk/src/scripts/.default_board ]; then
+    BOARD="`cat ~/trunk/src/scripts/.default_board`"
+  else
+    echo "You must pass BOARD environment variable or set a default board." >&2
+    exit 1
+  fi
+fi
+
+VBOOT_REF_DIR="$(dirname "$0")"
+echo "Running tests for board '${BOARD}' from ${VBOOT_REF_DIR}"
+
+cd "${VBOOT_REF_DIR}"
+
+echo "Running make runtests..."
+make runtests -j32
+
+echo "Removing build artifacts."
+rm -rf build build-main
+
+echo "Running emerge tests (runs cros_workon start)."
+# Ignore errors about already working on those repos.
+cros_workon-${BOARD} start ${TEST_EBUILDS} || true
+
+USE=depthcharge emerge-${BOARD} ${TEST_EBUILDS}