feat: initial commit, add fs revision storage and reporter

src/storage/mod.rs

@@ -0,0 +1,40 @@
+pub mod fs;
+
+use std::path::PathBuf;
+
+use crate::{Data, error::Result};
+
+pub trait StorageImpl {
+    fn get_revision(&self) -> Result<usize>;
+    fn store_revision(&self, app_state: Data) -> Result<()>;
+}
+
+pub enum Storage {
+    FS(fs::FSStorage),
+}
+
+pub const IGNORE_FILES: [&str; 6] = ["assets", "cache", "catpacks", "logs", "meta", "metacache"];
+
+impl StorageImpl for Storage {
+    fn get_revision(&self) -> Result<usize> {
+        match self {
+            Self::FS(storage) => storage.get_revision(),
+        }
+    }
+
+    fn store_revision(&self, app_state: Data) -> Result<()> {
+        match self {
+            Self::FS(storage) => storage.store_revision(app_state),
+        }
+    }
+}
+
+pub fn get_storage_from_env() -> Storage {
+    Storage::FS(fs::FSStorage)
+}
+
+pub fn base_path_prism() -> PathBuf {
+    dirs::data_local_dir()
+        .unwrap_or_else(|| PathBuf::from("."))
+        .join("PrismLauncher")
+}