fix(core): handle unique constraint errors when adding duplicate hashes to the cache db (#28310)

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## Current Behavior
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## Expected Behavior
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Fixes #

Author: Cammisuli

packages/nx/src/native/cache/cache.rs

@@ -48,7 +48,7 @@ impl NxCache {
             workspace_root: PathBuf::from(workspace_root),
             cache_directory: cache_path.to_normalized_string(),
             cache_path,
-            link_task_details: link_task_details.unwrap_or(true)
+            link_task_details: link_task_details.unwrap_or(true),
         };
 
         r.setup()?;
@@ -80,11 +80,7 @@ impl NxCache {
             "
         };
 
-        self.db
-            .execute_batch(
-                query,
-            )
-            .map_err(anyhow::Error::from)
+        self.db.execute_batch(query).map_err(anyhow::Error::from)
     }
 
     #[napi]
@@ -144,7 +140,7 @@ impl NxCache {
         create_dir_all(&task_dir)?;
 
         // Write the terminal outputs into a file
-        let task_outputs_path: _ = self.get_task_outputs_path_internal(&hash);
+        let task_outputs_path = self.get_task_outputs_path_internal(&hash);
         trace!("Writing terminal outputs to: {:?}", &task_outputs_path);
         write(task_outputs_path, terminal_output)?;
 
@@ -192,9 +188,7 @@ impl NxCache {
 
     fn record_to_cache(&self, hash: String, code: i16) -> anyhow::Result<()> {
         self.db.execute(
-            "INSERT INTO cache_outputs
-                (hash, code)
-                VALUES (?1, ?2)",
+            "INSERT OR REPLACE INTO cache_outputs (hash, code) VALUES (?1, ?2)",
             params![hash, code],
         )?;
         Ok(())
@@ -258,19 +252,16 @@ impl NxCache {
         // Checks that the number of cache records in the database
         // matches the number of cache directories on the filesystem.
         // If they don't match, it means that the cache is out of sync.
-        let cache_records_exist = self.db.query_row(
-            "SELECT EXISTS (SELECT 1 FROM cache_outputs)",
-            [],
-            |row| {
-                let exists: bool = row.get(0)?;
-                Ok(exists)
-            },
-        )?;
+        let cache_records_exist =
+            self.db
+                .query_row("SELECT EXISTS (SELECT 1 FROM cache_outputs)", [], |row| {
+                    let exists: bool = row.get(0)?;
+                    Ok(exists)
+                })?;
 
         if !cache_records_exist {
             let hash_regex = Regex::new(r"^\d+$").expect("Hash regex is invalid");
-            let fs_entries = std::fs::read_dir(&self.cache_path)
-                .map_err(anyhow::Error::from)?;
+            let fs_entries = std::fs::read_dir(&self.cache_path).map_err(anyhow::Error::from)?;
 
             for entry in fs_entries {
                 let entry = entry?;

packages/nx/src/native/tests/cache.spec.ts

@@ -59,4 +59,9 @@ describe('Cache', () => {
       'output contents 123'
     );
   });
+
+  it('should handle storing hashes that already exist in the cache', async () => {
+    cache.put('123', 'output 123', ['dist'], 0);
+    expect(() => cache.put('123', 'output 123', ['dist'], 0)).not.toThrow();
+  });
 });