Add repbuild subcommands `mount` & `unmount`

These repbuild subcommands mount the filesystem root to the
userland/root_fs/mnt folder, and this makes editing the initial file
system easier.

This also renames userland/root_rs to userland/root_fs.

.gitignore

@@ -6,3 +6,5 @@ shadeable/target
 qprofiler
 userland/*/target
 kernel/target
+userland/root_fs/mnt/*
+!*/.gitkeep

ableos/src/filesystem/mod.rs

@@ -9,7 +9,7 @@ use ext2::{
 
 fn load_fs() -> Synced<Ext2<Size1024, Vec<u8>>> {
     let mut volume = Vec::new();
-    volume.extend_from_slice(include_bytes!("../../../userland/root_rs/ext2.img"));
+    volume.extend_from_slice(include_bytes!("../../../userland/root_fs/ext2.img"));
 
     let fs = Synced::<Ext2<Size1024, _>>::new(volume).unwrap();
 

repbuild/src/main.rs

@@ -16,6 +16,16 @@ enum Command {
         #[clap(long, short, arg_enum)]
         machine: Option<MachineType>,
     },
+
+    Mount {
+        #[clap(long, short)]
+        path: Option<String>,
+    },
+
+    Unmount {
+        #[clap(long, short)]
+        path: Option<String>,
+    },
 }
 
 #[derive(clap::ArgEnum, Debug, Clone)]
@@ -89,6 +99,16 @@ fn main() -> anyhow::Result<()> {
                 }
             }
         }
+
+        Command::Mount { path } => {
+            let path = path.unwrap_or("./userland/root_fs/mnt".to_string());
+            xshell::cmd!("sudo mount userland/root_fs/ext2.img {path}").run()?;
+        },
+
+        Command::Unmount { path } => {
+            let path = path.unwrap_or("./userland/root_fs/mnt".to_string());
+            xshell::cmd!("sudo umount {path}").run()?;
+        },
     }
 
     Ok(())