aflags: read protos from all containers
Create one library for reading protos from all containers, instead of
having numerous libraries perform the same logic. For Java, we will
create a similar library reusing the same
partition_aconfig_flags_paths.txt.
Bug: 324436145
Test: adb shell aflags list # Confirm that various containers appear
Change-Id: I924e281a50f9a609e1c07c03267eebe3dce52752
diff --git a/tools/aconfig/aconfig_device_paths/src/lib.rs b/tools/aconfig/aconfig_device_paths/src/lib.rs
new file mode 100644
index 0000000..7bb62f4
--- /dev/null
+++ b/tools/aconfig/aconfig_device_paths/src/lib.rs
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2024 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.
+ */
+
+//! Library for finding all aconfig on-device protobuf file paths.
+
+use anyhow::Result;
+use std::path::PathBuf;
+
+use std::fs;
+
+/// Determine all paths that contain an aconfig protobuf file.
+pub fn parsed_flags_proto_paths() -> Result<Vec<PathBuf>> {
+ let mut result: Vec<PathBuf> = include!("../partition_aconfig_flags_paths.txt")
+ .map(|s| PathBuf::from(s.to_string()))
+ .to_vec();
+ for dir in fs::read_dir("/apex")? {
+ let dir = dir?;
+
+ // Only scan the currently active version of each mainline module; skip the @version dirs.
+ if dir.file_name().as_encoded_bytes().iter().any(|&b| b == b'@') {
+ continue;
+ }
+
+ let mut path = PathBuf::from("/apex");
+ path.push(dir.path());
+ path.push("etc");
+ path.push("aconfig_flags.pb");
+ if path.exists() {
+ result.push(path);
+ }
+ }
+
+ Ok(result)
+}