Make mount no-op on unsupported targets

Cargo.toml

@@ -5,3 +5,7 @@ members = [
     "rustcryptfs-fuse",
     "rustcryptfs-mount"
 ]
+
+[profile.release]
+lto = true
+codegen-units = 1

README.md

@@ -9,6 +9,10 @@ An implementation of [gocryptfs](https://github.com/rfjakob/gocryptfs) in Rust.
     - [ ] read
     - [ ] write
 
+## Features
+- mount\
+    Allow to mount a virtual filesystem on linux or windows (unimplemented). This feature is no-op on other targets.
+
 ## License
 
 Licensed under either of

rustcryptfs/src/args.rs

@@ -19,6 +19,7 @@ pub(crate) enum Commands {
     Ls(LsCommand),
 
     #[cfg(feature = "mount")]
+    #[cfg(any(target_os = "linux", target_os = "windows"))]
     /// Mount an encrypted folder
     Mount(MountCommand),
 }
@@ -52,6 +53,7 @@ pub(crate) struct LsCommand {
 }
 
 #[cfg(feature = "mount")]
+#[cfg(any(target_os = "linux", target_os = "windows"))]
 #[derive(Debug, Parser)]
 pub(crate) struct MountCommand {
     /// The directory

rustcryptfs/src/main.rs

@@ -10,6 +10,7 @@ use args::{DecryptCommand, LsCommand};
 use rustcryptfs_lib::GocryptFs;
 
 #[cfg(feature = "mount")]
+#[cfg(any(target_os = "linux", target_os = "windows"))]
 use args::MountCommand;
 
 mod args;
@@ -22,6 +23,7 @@ fn main() -> anyhow::Result<()> {
         args::Commands::Decrypt(c) => decrypt_file(c),
         args::Commands::Ls(c) => ls(c),
         #[cfg(feature = "mount")]
+        #[cfg(any(target_os = "linux", target_os = "windows"))]
         args::Commands::Mount(c) => mount(c),
     }
 }
@@ -135,7 +137,7 @@ fn mount(mount: &MountCommand) -> anyhow::Result<()> {
     Ok(())
 }
 
-#[cfg(not(target_os = "linux"))]
+#[cfg(target_os = "windows")]
 #[cfg(feature = "mount")]
 fn mount(mount: &MountCommand) -> anyhow::Result<()> {
     unimplemented!()