Add support for APEX_GLOBAL_MIN_SDK_VERSION_OVERRIDE in apex.bzl.

Fixes: 268340414
Test: presubmits
Change-Id: Icee1e68b1278bdc5ba7f8fcba31a2fcde8dfa03b

1 files changed, 40 insertions, 0 deletions

diff --git a/rules/apex/sdk_versions.bzl b/rules/apex/sdk_versions.bzl
new file mode 100644
index 00000000..acfad9e4
--- /dev/null
+++ b/rules/apex/sdk_versions.bzl
@@ -0,0 +1,40 @@
+"""
+Copyright (C) 2023 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+"""
+
+load("//build/bazel/rules/common:api.bzl", api_levels = "api_levels_with_previews")
+
+# Override a min_sdk_version with another if higher. Normalize string codenames
+# to API ints for direct comparisons.
+#
+# Function signature: string, string -> string
+def maybe_override_min_sdk_version(min_sdk_version, override_min_sdk_version):
+    if min_sdk_version == "current":
+        min_sdk_version = "10000"
+    if not str(min_sdk_version).isdigit():
+        fail("%s must only contain digits." % min_sdk_version)
+
+    min_api_level = int(min_sdk_version)
+
+    if str(override_min_sdk_version).isdigit():
+        override_api_level = int(override_min_sdk_version)
+    else:
+        override_api_level = api_levels.get(override_min_sdk_version, -1)
+
+    # Only override version numbers upwards.
+    if override_api_level > min_api_level:
+        min_api_level = override_api_level
+
+    return str(min_api_level)