merge upstream, add back get_blobs logic

beacon_node/client/src/config.rs

@@ -49,6 +49,13 @@ pub struct Config {
     pub db_name: String,
     /// Path where the freezer database will be located.
     pub freezer_db_path: Option<PathBuf>,
+    /// Path where the blobs database will be located if blobs should be in a separate database.
+    ///
+    /// The capacity this location should hold varies with the data availability boundary. It
+    /// should be able to store < 69 GB when [MIN_EPOCHS_FOR_BLOBS_SIDECARS_REQUESTS](types::consts::eip4844::MIN_EPOCHS_FOR_BLOBS_SIDECARS_REQUESTS) is 4096
+    /// epochs of 32 slots (up to 131072 bytes data per blob and up to 4 blobs per block, 88 bytes
+    /// of [BlobsSidecar](types::BlobsSidecar) metadata per block).
+    pub blobs_db_path: Option<PathBuf>,
     pub log_file: PathBuf,
     /// If true, the node will use co-ordinated junk for eth1 values.
     ///
@@ -89,6 +96,7 @@ impl Default for Config {
             data_dir: PathBuf::from(DEFAULT_ROOT_DIR),
             db_name: "chain_db".to_string(),
             freezer_db_path: None,
+            blobs_db_path: None,
             log_file: PathBuf::from(""),
             genesis: <_>::default(),
             store: <_>::default(),
@@ -149,11 +157,27 @@ impl Config {
             .unwrap_or_else(|| self.default_freezer_db_path())
     }
 
+    /// Returns the path to which the client may initialize the on-disk blobs database.
+    ///
+    /// Will attempt to use the user-supplied path from e.g. the CLI, or will default
+    /// to None.
+    pub fn get_blobs_db_path(&self) -> Option<PathBuf> {
+        self.blobs_db_path.clone()
+    }
+
     /// Get the freezer DB path, creating it if necessary.
     pub fn create_freezer_db_path(&self) -> Result<PathBuf, String> {
         ensure_dir_exists(self.get_freezer_db_path())
     }
 
+    /// Get the blobs DB path, creating it if necessary.
+    pub fn create_blobs_db_path(&self) -> Result<Option<PathBuf>, String> {
+        match self.get_blobs_db_path() {
+            Some(blobs_db_path) => Ok(Some(ensure_dir_exists(blobs_db_path)?)),
+            None => Ok(None),
+        }
+    }
+
     /// Returns the "modern" path to the data_dir.
     ///
     /// See `Self::get_data_dir` documentation for more info.