Initial MetaCrate rewrite shell

crates/libremetaverse/src/lib.rs

@@ -0,0 +1,20 @@
+//! Public rewrite shell corresponding to the main `LibreMetaverse` assembly.
+
+mod generated;
+
+pub use generated::*;
+pub use libremetaverse_imaging as imaging_abstractions;
+pub use libremetaverse_structured_data as structured_data;
+pub use libremetaverse_types as types;
+
+/// Common behavior for program shims while the network stack is unimplemented.
+pub mod shim {
+    use std::process::ExitCode;
+
+    /// Reports that an upstream sample has a target but no implementation yet.
+    #[must_use]
+    pub fn pending_program(name: &str) -> ExitCode {
+        eprintln!("{name}: LibreMetaverse Rust port is not implemented yet");
+        ExitCode::FAILURE
+    }
+}