Include version in cache key

Cargo.lock

@@ -1493,7 +1493,7 @@ dependencies = [
 
 [[package]]
 name = "rust-python-linter"
-version = "0.0.6"
+version = "0.0.7"
 dependencies = [
  "anyhow",
  "bincode",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rust-python-linter"
-version = "0.0.6"
+version = "0.0.7"
 edition = "2021"
 
 [lib]
@@ -13,7 +13,7 @@ bincode = { version = "1.3.3" }
 cacache = { version = "10.0.1" }
 chrono = { version = "0.4.21" }
 clap = { version = "3.2.16", features = ["derive"] }
-clearscreen = "1.0.10"
+clearscreen = { version = "1.0.10" }
 colored = { version = "2.0.0" }
 fern = { version = "0.6.1" }
 log = { version = "0.4.17" }

src/cache.rs

@@ -1,4 +1,3 @@
-use std::borrow::Cow;
 use std::os::unix::fs::MetadataExt;
 use std::path::Path;
 
@@ -8,6 +7,8 @@ use serde::{Deserialize, Serialize};
 
 use crate::message::Message;
 
+const VERSION: &str = env!("CARGO_PKG_VERSION");
+
 #[derive(Serialize, Deserialize)]
 struct CacheMetadata {
     size: u64,
@@ -66,8 +67,8 @@ fn cache_dir() -> &'static str {
     "./.cache"
 }
 
-fn cache_key(path: &Path) -> Cow<str> {
-    path.to_string_lossy()
+fn cache_key(path: &Path) -> String {
+    format!("{}@{}", path.to_string_lossy(), VERSION)
 }
 
 pub fn get(path: &Path, mode: &Mode) -> Option<Vec<Message>> {