ksud: support set-manager (#114)

* ksud: support set-manager

* ksud: rework apk sign

Co-authored-by: Ylarod <me@ylarod.cn>

userspace/ksud/src/cli.rs

@@ -1,7 +1,7 @@
 use anyhow::Result;
 use clap::Parser;
 
-use crate::{event, module};
+use crate::{event, module, debug, apk_sign};
 
 /// KernelSU userspace cli
 #[derive(Parser, Debug)]
@@ -37,7 +37,27 @@ enum Commands {
     /// SELinux policy Patch tool
     Sepolicy,
 
-    /// For test
+    /// For developers
+    Debug {
+        #[command(subcommand)]
+        command: Debug,
+    },
+}
+#[derive(clap::Subcommand, Debug)]
+enum Debug {
+    /// Set the manager app, kernel CONFIG_KSU_DEBUG should be enabled.
+    SetManager {
+        /// manager apk path or package name
+        apk: String,
+    },
+
+    /// Get apk size and hash
+    GetSign {
+        /// apk path
+        apk: String,
+    },
+
+    /// For testing
     Test,
 }
 
@@ -93,7 +113,18 @@ pub fn run() -> Result<()> {
         Commands::Install => event::install(),
         Commands::Sepolicy => todo!(),
         Commands::Services => event::on_services(),
-        Commands::Test => event::do_systemless_mount("/data/adb/ksu/modules"),
+
+        Commands::Debug { command } => {
+            match command {
+                Debug::SetManager { apk } => debug::set_manager(&apk),
+                Debug::GetSign { apk } => { 
+                    let sign = apk_sign::get_apk_signature(&apk)?;
+                    println!("size: {:#x}, hash: {:#x}", sign.0, sign.1);
+                    Ok(())
+                },
+                Debug::Test => todo!(),
+            }
+        }
     };
 
     if let Err(e) = &result {