Script for CI build target on *-finalization-1 branches.

Revert the previous script changes, run the finalization, and then the
build.
Useful to cross check the broken branch - do we just need to re-run the
script, or is there a bigger problem.

Bug: 243966946
Test: run locally
Change-Id: I44d6a5f5f523001ae70e5b82315ffbad82a1233d

finalize-step-1-for-build-target.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+# Continuous Integration script for *-finalization-1 branches.
+# Reverts previous finalization script commits and runs local build.
+
+function revert_to_unfinalized_state() {
+    repo forall -c '\
+        git checkout . ; git revert --abort ; git clean -fdx ;\
+        git checkout @ ; git branch fina-step1 -D ; git reset --hard; \
+        repo start fina-step1 ; git checkout @ ; git b fina-step1 -D ;\
+        baselineHash="$(git log --format=%H --no-merges --max-count=1 --grep ^FINALIZATION_STEP_1_BASELINE_COMMIT)" ;\
+        if [[ $baselineHash ]]; then
+          previousHash="$(git log --format=%H --no-merges --max-count=100 --grep ^FINALIZATION_STEP_1_SCRIPT_COMMIT $baselineHash..HEAD | tr \n \040)" ;\
+        else
+          previousHash="$(git log --format=%H --no-merges --max-count=100 --grep ^FINALIZATION_STEP_1_SCRIPT_COMMIT | tr \n \040)" ;\
+        fi ; \
+        if [[ $previousHash ]]; then git revert --no-commit --strategy=ort --strategy-option=ours $previousHash ; fi ;'
+}
+
+function finalize_step_1_main() {
+    local top="$(dirname "$0")"/../..
+    local m="$top/build/soong/soong_ui.bash --make-mode TARGET_PRODUCT=aosp_arm64 TARGET_BUILD_VARIANT=userdebug"
+
+    revert_to_unfinalized_state
+
+    set -ex
+
+    # vndk etc finalization
+    source $top/build/make/finalize-aidl-vndk-sdk-resources.sh
+
+    # build to confirm everything is OK
+    AIDL_FROZEN_REL=true $m
+}
+
+finalize_step_1_main