First commit

.gitignore

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+/target
+**/target

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "glob"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
+
+[[package]]
+name = "hotload"
+version = "0.1.0"
+dependencies = [
+ "glob",
+ "hotload_toto1",
+ "libloading",
+]
+
+[[package]]
+name = "hotload_toto1"
+version = "0.1.0"
+
+[[package]]
+name = "libloading"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "efbc0f03f9a775e9f6aed295c6a1ba2253c5757a9e03d55c6caa46a681abcddd"
+dependencies = [
+ "cfg-if",
+ "winapi",
+]
+
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"

Cargo.toml

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+[package]
+name = "hotload"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+libloading = "0.7"
+glob = "0.3"
+# hotload_plugin = { path = "./crates/hotload_plugin" }
+hotload_toto1 = { path = "./plugins/hotload_toto1" }

plugins/hotload_toto1/Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "hotload_toto1"
+version = "0.1.0"

plugins/hotload_toto1/Cargo.toml

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+[package]
+name = "hotload_toto1"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+# hotload_plugin = { path = "../../crates/hotload_plugin" }
+
+[lib]
+crate-type = ["dylib"]

plugins/hotload_toto1/src/lib.rs

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+#[no_mangle]
+pub extern fn version() -> String {
+    "0.2.0".to_string()
+}

src/main.rs

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+mod plugin_manager;
+
+fn main() {
+    plugin_manager::PluginManager::new();
+}

src/plugin_manager.rs

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+use std::env::current_exe;
+use std::path::PathBuf;
+use glob::glob;
+
+#[derive(Debug, Clone)]
+pub struct Plugin {
+    pub version: String
+}
+
+pub struct PluginManager {
+    pub plugins: Vec<Plugin>,
+}
+
+impl PluginManager {
+    pub fn new() {
+        println!("Loading librairies...");
+        let mut plugins = Vec::new();
+        let current_path = current_exe().unwrap();
+        let parent_path = current_path.parent().unwrap();
+        let lib_folder = parent_path.join("*.so");
+        for lib_file in glob(lib_folder.to_str().unwrap()).unwrap() {
+            let plugin = Self::load_library(lib_file.unwrap());
+            println!("Loaded plugin {:?}", plugin);
+            plugins.push(plugin);
+        }
+    }
+
+    fn load_library(lib_file: PathBuf) -> Plugin {
+        println!("Loading library {:?}", lib_file);
+        unsafe {
+            let lib = libloading::Library::new(lib_file).unwrap();
+            let version_func : libloading::Symbol<extern fn() -> String> = lib.get(b"version").unwrap();
+            Plugin {
+                version: version_func()
+            }
+        }
+    }
+}