export lazy current config

packages/cli-config/src/lib.rs

@@ -4,6 +4,50 @@
 
 mod config;
 pub use config::*;
-
+mod bundle;
+pub use bundle::*;
 mod cargo;
 pub use cargo::*;
+
+#[doc(hidden)]
+pub mod __private {
+    use crate::CrateConfig;
+
+    pub const CONFIG_ENV: &str = "DIOXUS_CONFIG";
+
+    pub fn save_config(config: &CrateConfig) -> CrateConfigDropGuard {
+        std::env::set_var(CONFIG_ENV, serde_json::to_string(config).unwrap());
+        CrateConfigDropGuard
+    }
+
+    /// A guard that removes the config from the environment when dropped.
+    pub struct CrateConfigDropGuard;
+
+    impl Drop for CrateConfigDropGuard {
+        fn drop(&mut self) {
+            std::env::remove_var(CONFIG_ENV);
+        }
+    }
+}
+
+/// An error that occurs when the dioxus CLI was not used to build the application.
+#[derive(Debug)]
+pub struct DioxusCLINotUsed;
+
+impl std::fmt::Display for DioxusCLINotUsed {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.write_str("dioxus CLI was not used to build the application")
+    }
+}
+
+impl std::error::Error for DioxusCLINotUsed {}
+
+/// The current crate's configuration.
+pub static CURRENT_CONFIG: once_cell::sync::Lazy<
+    Result<crate::config::CrateConfig, DioxusCLINotUsed>,
+> = once_cell::sync::Lazy::new(|| {
+    std::env::var(crate::__private::CONFIG_ENV)
+        .ok()
+        .and_then(|config| serde_json::from_str(&config).ok())
+        .ok_or(DioxusCLINotUsed)
+});