new variant: add a config for creating ambassador variants

BUG=b:172835923
TEST=end-to-end creation of genesis

Cq-Depend: chromium:2526799
Change-Id: Id13e855a70962fd0fd6ca7e7cec903e266c9d6d7
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/2526913
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Commit-Queue: Matthew Ziegelbaum <ziegs@chromium.org>
Tested-by: Matthew Ziegelbaum <ziegs@chromium.org>

contrib/variant/ambassador.py

diff --git a/contrib/variant/ambassador.py b/contrib/variant/ambassador.py
new file mode 100644
index 0000000..7cb4cab
--- /dev/null
+++ b/contrib/variant/ambassador.py
@@ -0,0 +1,98 @@
+# -*- coding: utf-8 -*-
+"""Define steps, package names, and directories for creating an Ambassador variant
+
+Copyright 2020 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.
+"""
+
+from __future__ import print_function
+import step_names
+
+# Name of the baseboard
+base = 'ambassador'
+
+# Name of the baseboard in coreboot; usually the same but not always
+coreboot_base = 'hatch'
+
+# Name of the creboot reference board; usually the same but not always
+coreboot_reference = 'puff'
+
+# List of steps (named in step_names.py) to run in sequence to create
+# the new variant of the baseboard
+step_list = [
+    step_names.PROJECT_CONFIG,
+    step_names.FW_BUILD_CONFIG,
+    step_names.CB_VARIANT,
+    step_names.CB_CONFIG,
+    step_names.ADD_FIT,
+    step_names.GEN_FIT,
+    step_names.COMMIT_FIT,
+    step_names.EMERGE,
+    step_names.PUSH,
+    step_names.UPLOAD,
+    step_names.FIND,
+    step_names.CALC_CQ_DEPEND,
+    step_names.ADD_CQ_DEPEND,
+    step_names.RE_UPLOAD,
+    step_names.CLEAN_UP]
+
+# Base directory for coreboot
+coreboot_dir = 'third_party/coreboot'
+
+# Base directory for coreboot configs (None=use default)
+cb_config_dir = None
+
+# Package name for FSP
+fsp = 'intel-cmlfsp'
+
+# Package name for the fitimage
+fitimage_pkg = 'coreboot-private-files-puff'
+
+# Directory for fitimage; append '~/trunk/src/'' in chroot, '~/chromiumos/src' outside
+# Ambassador firmware is comingled with Puff's, so fitimage goes there.
+fitimage_dir = 'private-overlays/baseboard-puff-private/sys-boot/coreboot-private-files-puff'
+
+# Explanation of gen_fit_image command
+fitimage_cmd = './gen_fit_image.sh %s <path_to_fit_kit> -b'
+
+# List of packages to cros_workon
+workon_pkgs = [
+    'coreboot', 'libpayload', 'vboot_reference', 'depthcharge', fsp,
+    fitimage_pkg, 'chromeos-ec', 'chromeos-config-bsp-ambassador-private']
+
+# The emerge command
+emerge_cmd = 'emerge-ambassador'
+
+# List of packages to emerge
+emerge_pkgs = [
+    'coreboot', 'libpayload', 'vboot_reference', 'depthcharge', fsp,
+    fitimage_pkg, 'chromeos-ec', 'chromeos-config-bsp-ambassador-private',
+    'chromeos-config', 'chromeos-config-bsp', 'coreboot-private-files',
+    'chromeos-bootimage']
+
+# List of packages to cros_workon to build the project config
+config_workon_pkgs = ['chromeos-config-bsp-ambassador-private']
+
+# List of packages to emerge to build the project config
+config_emerge_pkgs = ['chromeos-config-bsp-ambassador-private']
+
+# Directory for the private yaml file
+# None; ambassador doesn't use model.yaml
+private_yaml_dir = None
+
+# List of commits that will be uploaded with `repo upload`
+repo_upload_list = [
+    step_names.CB_CONFIG, step_names.COMMIT_FIT,
+    step_names.FW_BUILD_CONFIG]
+
+# List of commits that will be pushed to review.coreboot.org
+coreboot_push_list = [step_names.CB_VARIANT]
+
+# List of steps that depend on other steps, and what those are.
+# This list gets used for setting up Cq-Depend on the uploaded CLs.
+depends = {
+    step_names.CB_CONFIG: [step_names.FIND],
+    step_names.FW_BUILD_CONFIG: [
+        step_names.FIND, step_names.CB_CONFIG, step_names.COMMIT_FIT]
+}