feat: etc

rust/src/appdata.rs

@@ -1,11 +1,13 @@
-use anyhow::{anyhow, Result};
+use std::hash::{DefaultHasher, Hash, Hasher};
+
 use crate::pkg::PkgKey;
-use crate::Profile;
 use crate::pkg_store::PackageStore;
+use crate::Profile;
+use anyhow::{anyhow, Result};
 
 pub struct AppData {
     pub profile: Option<Profile>,
-    pub pkgs: PackageStore
+    pub pkgs: PackageStore,
 }
 
 impl AppData {
@@ -37,4 +39,14 @@ impl AppData {
 
         Ok(())
     }
-}
+
+    pub fn sum_packages(&self, p: &Profile) -> String {
+        let mut hasher = DefaultHasher::new();
+        for pkg in &p.mods {
+            let x = self.pkgs.get(pkg).unwrap().loc.as_ref().unwrap();
+            pkg.hash(&mut hasher);
+            x.version.hash(&mut hasher);
+        }
+        hasher.finish().to_string()
+    }
+}