fix: Convert vendor/pezkuwi-subxt from submodule to regular directory

vendor/pezkuwi-subxt/subxt/examples/blocks_subscribing.rs

@@ -0,0 +1,63 @@
+#![allow(missing_docs)]
+use subxt::{OnlineClient, PolkadotConfig};
+
+#[subxt::subxt(runtime_metadata_path = "../artifacts/polkadot_metadata_small.scale")]
+pub mod polkadot {}
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    // Create a client to use:
+    let api = OnlineClient::<PolkadotConfig>::new().await?;
+
+    // Subscribe to all finalized blocks:
+    let mut blocks_sub = api.blocks().subscribe_finalized().await?;
+
+    // For each block, print a bunch of information about it:
+    while let Some(block) = blocks_sub.next().await {
+        let block = block?;
+
+        let block_number = block.header().number;
+        let block_hash = block.hash();
+
+        println!("Block #{block_number}:");
+        println!("  Hash: {block_hash}");
+        println!("  Extrinsics:");
+
+        // Log each of the extrinsic with it's associated events:
+        let extrinsics = block.extrinsics().await?;
+        for ext in extrinsics.iter() {
+            let idx = ext.index();
+            let events = ext.events().await?;
+            let bytes_hex = format!("0x{}", hex::encode(ext.bytes()));
+
+            // See the API docs for more ways to decode extrinsics:
+            let decoded_ext = ext.as_root_extrinsic::<polkadot::Call>();
+
+            println!("    Extrinsic #{idx}:");
+            println!("      Bytes: {bytes_hex}");
+            println!("      Decoded: {decoded_ext:?}");
+
+            println!("      Events:");
+            for evt in events.iter() {
+                let evt = evt?;
+                let pallet_name = evt.pallet_name();
+                let event_name = evt.variant_name();
+                let event_values = evt.decode_as_fields::<scale_value::Value>()?;
+
+                println!("        {pallet_name}_{event_name}");
+                println!("          {event_values}");
+            }
+
+            println!("      Transaction Extensions:");
+            if let Some(transaction_extensions) = ext.transaction_extensions() {
+                for transaction_extension in transaction_extensions.iter() {
+                    let name = transaction_extension.name();
+                    let value = transaction_extension.value()?.to_string();
+                    println!("        {name}: {value}");
+                }
+            }
+        }
+    }
+
+    Ok(())
+}