pixel: Add script to automatically upgrade build.prop overrides

Change-Id: Ic3d2026c2cc65532a5f1eed1ac7bc11aa5a0a6e1

pixel/build-desc-fingerprint.sh

@@ -0,0 +1,76 @@
+#!/bin/bash
+#
+# build-desc-fingerprint:
+#
+#   Update build.prop build description and fingerprint overrides to match stock
+#
+#
+##############################################################################
+
+
+### SET ###
+
+# use bash strict mode
+set -euo pipefail
+set -x
+
+### TRAPS ###
+
+# trap signals for clean exit
+trap 'rm -rf ${tmp_dir} && exit $?' EXIT
+trap 'error_m interrupted!' SIGINT
+
+### CONSTANTS ###
+readonly script_path="$(cd "$(dirname "$0")";pwd -P)"
+readonly vars_path="${script_path}/../vars/"
+readonly top="${script_path}/../../../"
+
+readonly tmp_dir="${TMPDIR:-/tmp}/pixel"
+
+source "${vars_path}/devices"
+
+## HELP MESSAGE (USAGE INFO)
+# TODO
+
+### FUNCTIONS ###
+
+
+
+# error message
+# ARG1: error message for STDERR
+# ARG2: error status
+error_m() {
+  echo "ERROR: ${1:-'failed.'}" 1>&2
+  return "${2:-1}"
+}
+
+# print help message.
+help_message() {
+  echo "${help_message:-'No help available.'}"
+}
+
+main() {
+  mkdir -p "${tmp_dir}"
+  if [[ $# -ne 0 ]]; then
+    local ds="${@}"
+  else
+    local ds="${devices[@]}"
+  fi
+
+  for d in ${ds}; do
+    (
+      local dv="${vars_path}/${d}"
+      source "${dv}"
+      local mk="$(ls ${top}/device/google/*/calyx_${d}.mk)"
+      sed -i "s/${prev_build_id}/${build_id}/g" "${mk}"
+      sed -i "s/${prev_build_number}/${build_number}/g" "${mk}"
+    )
+  done
+}
+
+### RUN PROGRAM ###
+
+main "${@}"
+
+
+##