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feat(mount): support all partitions in Folk Mount API #166

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feat(mount): support all partitions in Folk Mount API #166

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76 changes: 50 additions & 26 deletions apd/src/magic_mount.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -159,9 +159,32 @@ impl Node {
}
}

const MODULE_PARTITIONS: &[(&str, bool)] = &[
("system", false),
("vendor", true),
("system_ext", true),
("product", true),
("odm", false),
("oem", false),
("apex", true),
("mi_ext", true),
("my_bigball", true),
("my_carrier", true),
("my_company", true),
("my_engineering", true),
("my_heytap", true),
("my_manifest", true),
("my_preload", true),
("my_product", true),
("my_region", true),
("my_reserve", true),
("my_stock", true),
("optics", true),
("prism", true),
];

fn collect_module_files() -> Result<Option<Node>> {
let mut root = Node::new_root("");
let mut system = Node::new_root("system");
let module_root = Path::new(MODULE_DIR);
let mut has_file = false;

Expand Down Expand Up @@ -189,38 +212,39 @@ fn collect_module_files() -> Result<Option<Node>> {
continue;
}

let mod_system = entry.path().join("system");

if !mod_system.is_dir() {
continue;
}

log::debug!("collecting {}", entry.path().display());

has_file |= system.collect_module_files(mod_system)?;
}
for &(partition, require_symlink) in MODULE_PARTITIONS {
let module_partition_dir = entry.path().join(partition);

if has_file {
const BUILTIN_PARTITIONS: [(&str, bool); 5] = [
("vendor", true),
("system_ext", true),
("product", true),
("odm", false),
("oem", false),
];

for (partition, require_symlink) in BUILTIN_PARTITIONS {
let path_of_root = Path::new("/").join(partition);
let path_of_system = Path::new("/system").join(partition);
if path_of_root.is_dir() && (!require_symlink || path_of_system.is_symlink()) {
let name = partition.to_string();
if let Some(node) = system.children.remove(&name) {
root.children.insert(name, node);
if !module_partition_dir.is_dir() {
continue;
}

if require_symlink {
let path_of_root = Path::new("/").join(partition);
let path_of_system = Path::new("/system").join(partition);
if !path_of_root.is_dir() || !path_of_system.is_symlink() {
continue;
}
} else {
let path_of_root = Path::new("/").join(partition);
if !path_of_root.is_dir() {
continue;
}
}

let partition_node = root
.children
.entry(partition.to_string())
.or_insert_with(|| Node::new_root(partition));

let collected = partition_node.collect_module_files(&module_partition_dir)?;
has_file |= collected;
}
}

root.children.insert("system".to_string(), system);
if has_file {
Ok(Some(root))
} else {
Ok(None)
Expand Down