feat(build): support for non-Linux IDEs

Rust code generated by build script is now conditionally included from
the output directory for the Linux target, and included from ./.pregenerated/
directory for non-Linux targets.
This allows to copy files generated for Linux to a non-Linux platform,
and an IDE will recognize all the generated definitions.

Signed-off-by: Dmitry Savitskiy <[email protected]>

.gitignore

@@ -11,4 +11,5 @@ Cargo.lock
 
 /rust-toolchain.toml
 .idea
-.vscode
+.vscode
+.pregenerated

src/v0.rs

@@ -26,4 +26,18 @@ impl FromStr for NvmeAnaState {
     }
 }
 
+// Include Rust sources generated by protobuf.
+#[cfg(target_os = "linux")]
 include!(concat!(env!("OUT_DIR"), "/mayastor.rs"));
+
+// In order to IDE to work properly with protobuf definitions on non-Linux platform,
+// one can copy generated bindings (mayastor.rs) from a Linux target and put them
+// to .pregenerated directory.
+// This has to be done every time Mayastor API V0 is changed.
+#[cfg(not(target_os = "linux"))]
+mod v0_generated {
+    include!("../.pregenerated/mayastor.rs");
+}
+
+#[cfg(not(target_os = "linux"))]
+pub use v0_generated::*;

src/v1.rs

@@ -1,10 +1,20 @@
 //! Module to access v1 version of grpc APIs
 use std::str::FromStr;
+
 // dont export the raw pb generated code
 mod pb {
+    // Include Rust sources generated by protobuf.
     #![allow(unknown_lints)]
     #![allow(clippy::derive_partial_eq_without_eq)]
+    #[cfg(target_os = "linux")]
     include!(concat!(env!("OUT_DIR"), "/mayastor.v1.rs"));
+
+    // In order to IDE to work properly with protobuf definitions on non-Linux platform,
+    // one can copy generated bindings (mayastor.v1.rs) from a Linux target and put them
+    // to .pregenerated directory.
+    // This has to be done every time Mayastor API V1 is changed.
+    #[cfg(not(target_os = "linux"))]
+    include!("../.pregenerated/mayastor.v1.rs");
 }
 
 pub mod common {