remove arc unwrapping

src/main.rs

@@ -316,30 +316,24 @@ async fn main() -> eyre::Result<()> {
         }
 
         // write cache to file
-        let AppState { config, posts } = Arc::<AppState>::try_unwrap(state).unwrap_or_else(|state| {
-            warn!("couldn't unwrap Arc over AppState, more than one strong reference exists for Arc. cloning instead");
-            // TODO: only do this when persistence is enabled
-            //       first check config from inside the arc, then try unwrap
-            AppState::clone(state.as_ref())
-        });
+        let config = &state.config;
+        let posts = &state.posts;
         if config.cache.enable
             && config.cache.persistence
-            && let Some(cache) = posts.into_cache()
+            && let Some(cache) = posts.cache()
         {
             let path = &config.cache.file;
-            let serialized = bitcode::serialize(&cache).context("failed to serialize cache")?;
+            let serialized = bitcode::serialize(cache).context("failed to serialize cache")?;
             let mut cache_file = tokio::fs::File::create(path)
                 .await
                 .with_context(|| format!("failed to open cache at {}", path.display()))?;
+            let compression_level = config.cache.compression_level;
             if config.cache.compress {
                 let cache_file = cache_file.into_std().await;
                 tokio::task::spawn_blocking(move || {
                     std::io::Write::write_all(
-                        &mut zstd::stream::write::Encoder::new(
-                            cache_file,
-                            config.cache.compression_level,
-                        )?
-                        .auto_finish(),
+                        &mut zstd::stream::write::Encoder::new(cache_file, compression_level)?
+                            .auto_finish(),
                         &serialized,
                     )
                 })

src/post/mod.rs

@@ -151,7 +151,7 @@ impl PostManager {
         Ok((metadata, post, (parsing, rendering)))
     }
 
-    pub async fn list_posts(
+    pub async fn get_all_post_metadata_filtered(
         &self,
         filter: impl Fn(&PostMetadata) -> bool,
     ) -> Result<Vec<PostMetadata>, PostError> {
@@ -206,7 +206,9 @@ impl PostManager {
         tag: Option<&String>,
     ) -> Result<Vec<PostMetadata>, PostError> {
         let mut posts = self
-            .list_posts(|metadata| !tag.is_some_and(|tag| !metadata.tags.contains(tag)))
+            .get_all_post_metadata_filtered(|metadata| {
+                !tag.is_some_and(|tag| !metadata.tags.contains(tag))
+            })
             .await?;
         posts.sort_unstable_by_key(|metadata| metadata.created_at.unwrap_or_default());
 
@@ -257,8 +259,8 @@ impl PostManager {
         }
     }
 
-    pub fn into_cache(self) -> Option<Cache> {
-        self.cache
+    pub fn cache(&self) -> Option<&Cache> {
+        self.cache.as_ref()
     }
 
     pub async fn cleanup(&self) {