Added new struct fields into structs used for migration logic

backend/src/persist/migration.rs

@@ -1,3 +1,16 @@
+// - Commit that changed setting format: 3aa9680baedf850d7d576d0df28ce50cf2124ebe.
+// - Commit that made settings variant use u64 instead of String:
+// d481f1314409c99a0ed48b006a8e9b53f6caa8a5.
+// - Add all back-end functionality for interacting with variants on the front-end:
+// 4eaf6fae2bba0219a316d37499ee6e1549645862.
+// - Improve memory clock selection for #140, fix dpm_performance enforcement check for GPU:
+// a1c44cdea7ae27f7a09fd194c580c79b291d25d1.
+// - Remove legacy charge mode and level functionality: 88d359e286bec2fdabde0f4f72b52fb8f4d5200e.
+// - Add tags for persistent settings variants: ccf0c04020bfc5ae9f667801f99d1a31f939006a.
+
+// TODO: Check full git diff between data structures from version 1.4.0 and current, to see exactly
+// what changed and how to migrate them to the current data structures.
+
 use std::collections::HashMap;
 
 use serde::{Deserialize, Serialize};
@@ -20,6 +33,7 @@ pub struct OldSettingsJson {
     pub battery: super::BatteryJson,
     pub provider: Option<super::DriverJson>,
     pub events: Option<OldOnEventJson>,
+    pub tags: Vec<String>,
 }
 
 impl From<&OldSettingsJson> for super::SettingsJson {
@@ -33,6 +47,7 @@ impl From<&OldSettingsJson> for super::SettingsJson {
             gpu: old_settings.gpu.clone(),
             battery: old_settings.battery.clone(),
             provider: old_settings.provider.clone(),
+            tags: todo!(),
         }
     }
 }
@@ -44,9 +59,10 @@ impl From<&OldSettingsJson> for super::FileJson {
         variants.insert(0, variant);
 
         Self {
-            version: 0,
+            version: super::LATEST_VERSION,
             name: old_settings.name.clone(),
             variants,
+            app_id: todo!(),
         }
     }
 }

backend/src/persist/mod.rs

@@ -16,3 +16,5 @@ pub use gpu::GpuJson;
 pub use migration::OldSettingsJson;
 
 pub use error::{RonError, SerdeError};
+
+pub const LATEST_VERSION: u64 = 0;