don't download verso when targetting mobile (#18)

* don't download verso when targetting mobile

* return Error

* Better error message

Signed-off-by: Ludea <ludovicw35@hotmail.com>

* Note to explain Not found error

Signed-off-by: Ludea <ludovicw35@hotmail.com>

* link to verso release

Signed-off-by: Ludea <ludovicw35@hotmail.com>

* Better error message and return error earlier

Signed-off-by: Ludea <ludovicw35@hotmail.com>

* mve to Known issues and add config file tips

Signed-off-by: Ludea <ludovicw35@hotmail.com>

* Update docs

Author: Ludea

README.md

@@ -89,4 +89,18 @@ We currently hard coded the `Origin` header for the custom protocol IPC to work,
 
 Currently, only the app wide menus on macOS are supported, per window menus are not supported yet
 
+### Mobile
+
+We currently only support Linux, Windows, MacOS, so no mobile (e.g. Android / iOS) support yet
+
+If your app targets both desktop and mobile and want to use this runtime only on desktop, you'll need to:
+
+- Include the crates in this repo only in desktop target dependencies
+- Enable `wry` feature on `tauri` when targeting mobile
+- Use `tauri::Builder::new()` instead of `tauri_runtime_verso::builder()` on mobile
+- Add checks to only run `get_verso_as_external_bin` when targeting desktop
+- Add `externalBin` only for desktop platforms, either through [tauri conf file for each platform](https://tauri.app/reference/config/#platform-specific-configuration) or `--config` flag to target a different configuration file that contains the `externalBin` field
+
+---
+
 For more, checkout the [documentation](https://versotile-org.github.io/tauri-runtime-verso/tauri_runtime_verso)

tauri-runtime-verso-build/src/lib.rs

@@ -33,7 +33,15 @@ pub use versoview_build;
 /// Downloads and extracts the pre-built versoview executable
 /// to `./versoview/versoview(.exe)` relative to the directory containing your `Cargo.toml` file
 pub fn get_verso_as_external_bin() -> io::Result<()> {
+    let target_os = std::env::var("CARGO_CFG_TARGET_OS").unwrap();
+    if target_os == "android" || target_os == "ios" {
+        return Err(io::Error::other(
+            "Versoview doesn't support mobile platforms yet",
+        ));
+    }
+
     let target_triple = std::env::var("TARGET").unwrap();
+
     let project_directory = std::env::var("CARGO_MANIFEST_DIR").unwrap();
     let output_directory = PathBuf::from(project_directory).join("versoview");