basic get command works with items from 0/config defined in test-config.toml

src/platform/os/mod.rs

@@ -0,0 +1,32 @@
+use ciborium::Value as CborValue;
+use serde::Deserialize;
+use std::fs;
+
+use crate::id::MizeId;
+use crate::instance::store::Store;
+use crate::instance::Instance;
+use crate::error::{IntoMizeResult, MizeError, MizeResult};
+
+
+pub fn os_instance_init<S: Store>(instance: Instance<S>) -> MizeResult<()> {
+    // this is the code, that runs to initialize an Instance on a system with an os present.
+
+    // load MIZE_CONFIG_FILE as the instance, which is item 0
+    let config_file_path = std::env::var("MIZE_CONFIG_FILE")
+        .mize_result_msg("Could not get the MIZE_CONFIG_FILE Environment Variable")?;
+
+    let toml_string = fs::read_to_string(&config_file_path)
+        .mize_result_msg(format!("Could not read file {} as mize config", &config_file_path))?;
+
+    let toml_deserializer = toml::Deserializer::new(&toml_string.as_str());
+
+    let config = CborValue::deserialize(toml_deserializer)
+        .mize_result_msg(format!("Could not deserialize the content of MIZE_CONFIG_FILE at {}", &config_file_path))?;
+
+    instance.set("0", config)?;
+    
+    return Ok(());
+}
+
+
+