Add store-tool (#13254)

runtime/store-tool/src/main.rs

@@ -0,0 +1,47 @@
+use clap::{crate_description, crate_name, value_t_or_exit, App, Arg};
+use log::*;
+use solana_runtime::append_vec::AppendVec;
+
+fn main() {
+    solana_logger::setup_with_default("solana=info");
+    let matches = App::new(crate_name!())
+        .about(crate_description!())
+        .version(solana_version::version!())
+        .arg(
+            Arg::with_name("file")
+                .long("file")
+                .takes_value(true)
+                .value_name("<PATH>")
+                .help("store to open"),
+        )
+        .arg(
+            Arg::with_name("len")
+                .long("len")
+                .takes_value(true)
+                .value_name("LEN")
+                .help("len of store to open"),
+        )
+        .get_matches();
+
+    let file = value_t_or_exit!(matches, "file", String);
+    let len = value_t_or_exit!(matches, "len", usize);
+    let mut store = AppendVec::new_empty_map(len);
+    store.set_no_remove_on_drop();
+    store.set_file(file).expect("set_file failed");
+    let accounts = store.accounts(0);
+    info!(
+        "store: len: {} capacity: {} accounts: {}",
+        store.len(),
+        store.capacity(),
+        accounts.len()
+    );
+    for account in store.accounts(0) {
+        info!(
+            "  account: {:?} version: {} data: {} hash: {:?}",
+            account.meta.pubkey, account.meta.write_version, account.meta.data_len, account.hash
+        );
+    }
+}
+
+#[cfg(test)]
+pub mod test {}