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# Copyright 2018 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# Defines the build_timestamp variable.
import("//build/util/lastchange.gni")
if (is_android) {
import("//build/config/android/abi.gni")
# Ensure the exec_script() runs only once in default debug configs to
# minimize "gn gen" overhead.
if (!enable_android_secondary_abi) {
assert(
current_toolchain == default_toolchain,
"Trying to run compute_build_timestamp.py in toolchain: $current_toolchain")
}
}
declare_args() {
# This should be the filename of a script that prints a single line
# containing an integer that's a unix timestamp in UTC.
# This timestamp is used as build time and will be compiled into
# other code.
#
# This argument may look unused. Before removing please check with the
# chromecast team to see if they still use it internally.
compute_build_timestamp = "compute_build_timestamp.py"
}
if (is_official_build) {
official_name = "official"
} else {
official_name = "default"
}
# This will return a timestamp that's different each day (official builds)
# or each month (regular builds). Just rely on gn rerunning due to other
# changes to keep this up to date. (Bots run gn on each build, and for devs
# the timestamp being 100% accurate doesn't matter.)
# See compute_build_timestamp.py for tradeoffs for picking the timestamp.
build_timestamp = exec_script(compute_build_timestamp,
[ official_name ],
"trim string",
[ lastchange_file ])
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