Add deposit data to recover function

account_manager/src/validator/mod.rs

@@ -53,7 +53,7 @@ pub fn cli_run<T: EthSpec>(matches: &ArgMatches, env: Environment<T>) -> Result<
         (modify::CMD, Some(matches)) => modify::cli_run(matches, validator_base_dir),
         (import::CMD, Some(matches)) => import::cli_run(matches, validator_base_dir),
         (list::CMD, Some(_)) => list::cli_run(validator_base_dir),
-        (recover::CMD, Some(matches)) => recover::cli_run(matches, validator_base_dir),
+        (recover::CMD, Some(matches)) => recover::cli_run::<T>(matches, env, validator_base_dir),
         (slashing_protection::CMD, Some(matches)) => {
             slashing_protection::cli_run(matches, env, validator_base_dir)
         }

account_manager/src/validator/recover.rs

@@ -8,13 +8,18 @@ use account_utils::random_password;
 use clap::{App, Arg, ArgMatches};
 use directory::ensure_dir_exists;
 use directory::{parse_path_or_default_with_flag, DEFAULT_SECRET_DIR};
+use environment::Environment;
 use eth2_wallet::bip39::Seed;
 use eth2_wallet::{recover_validator_secret_from_mnemonic, KeyType, ValidatorKeystores};
+use std::fs;
 use std::path::PathBuf;
+use types::*;
 use validator_dir::Builder as ValidatorDirBuilder;
+
 pub const CMD: &str = "recover";
 pub const FIRST_INDEX_FLAG: &str = "first-index";
 pub const MNEMONIC_FLAG: &str = "mnemonic-path";
+pub const JSON_DEPOSIT_DATA_PATH: &str = "json-deposit-data-path";
 
 pub fn cli_app<'a, 'b>() -> App<'a, 'b> {
     App::new(CMD)
@@ -76,9 +81,26 @@ pub fn cli_app<'a, 'b>() -> App<'a, 'b> {
                 .long(STDIN_INPUTS_FLAG)
                 .help("If present, read all user inputs from stdin instead of tty."),
         )
+        .arg(
+            Arg::with_name(JSON_DEPOSIT_DATA_PATH)
+                .long(JSON_DEPOSIT_DATA_PATH)
+                .value_name("PATH")
+                .help(
+                    "When provided, outputs a JSON file containing deposit data which \
+                    is equivalent to the 'deposit-data-*.json' file used by the \
+                    staking-deposit-cli tool.",
+                )
+                .takes_value(true),
+        )
 }
 
-pub fn cli_run(matches: &ArgMatches, validator_dir: PathBuf) -> Result<(), String> {
+pub fn cli_run<T: EthSpec>(
+    matches: &ArgMatches,
+    mut env: Environment<T>,
+    validator_dir: PathBuf,
+) -> Result<(), String> {
+    let spec = env.core_context().eth2_config.spec;
+
     let secrets_dir = if matches.value_of("datadir").is_some() {
         let path: PathBuf = clap_utils::parse_required(matches, "datadir")?;
         path.join(DEFAULT_SECRET_DIR)
@@ -89,6 +111,8 @@ pub fn cli_run(matches: &ArgMatches, validator_dir: PathBuf) -> Result<(), Strin
     let count: u32 = clap_utils::parse_required(matches, COUNT_FLAG)?;
     let mnemonic_path: Option<PathBuf> = clap_utils::parse_optional(matches, MNEMONIC_FLAG)?;
     let stdin_inputs = cfg!(windows) || matches.is_present(STDIN_INPUTS_FLAG);
+    let json_deposit_data_path: Option<PathBuf> =
+        clap_utils::parse_optional(matches, JSON_DEPOSIT_DATA_PATH)?;
 
     eprintln!("secrets-dir path: {:?}", secrets_dir);
 
@@ -103,6 +127,8 @@ pub fn cli_run(matches: &ArgMatches, validator_dir: PathBuf) -> Result<(), Strin
 
     let seed = Seed::new(&mnemonic, "");
 
+    let mut json_deposit_data = Some(vec![]).filter(|_| json_deposit_data_path.is_some());
+
     for index in first_index..first_index + count {
         let voting_password = random_password();
         let withdrawal_password = random_password();
@@ -128,7 +154,7 @@ pub fn cli_run(matches: &ArgMatches, validator_dir: PathBuf) -> Result<(), Strin
 
         let voting_pubkey = keystores.voting.pubkey().to_string();
 
-        ValidatorDirBuilder::new(validator_dir.clone())
+        let validator_dir = ValidatorDirBuilder::new(validator_dir.clone())
             .password_dir(secrets_dir.clone())
             .voting_keystore(keystores.voting, voting_password.as_bytes())
             .withdrawal_keystore(keystores.withdrawal, withdrawal_password.as_bytes())
@@ -136,6 +162,13 @@ pub fn cli_run(matches: &ArgMatches, validator_dir: PathBuf) -> Result<(), Strin
             .build()
             .map_err(|e| format!("Unable to build validator directory: {:?}", e))?;
 
+        if let Some(json_deposit_data) = &mut json_deposit_data {
+            let standard_deposit_data_json = validator_dir
+                .standard_deposit_data_json(&spec)
+                .map_err(|e| format!("Unable to create standard JSON deposit data: {:?}", e))?;
+            json_deposit_data.push(standard_deposit_data_json);
+        }
+
         println!(
             "{}/{}\tIndex: {}\t0x{}",
             index - first_index,
@@ -145,5 +178,21 @@ pub fn cli_run(matches: &ArgMatches, validator_dir: PathBuf) -> Result<(), Strin
         );
     }
 
+    // If configured, create a single JSON file which contains deposit data information for all
+    // validators.
+    if let Some(json_deposit_data_path) = json_deposit_data_path {
+        let json_deposit_data =
+            json_deposit_data.ok_or("Internal error: JSON deposit data is None")?;
+
+        let mut file = fs::OpenOptions::new()
+            .write(true)
+            .create_new(true)
+            .open(&json_deposit_data_path)
+            .map_err(|e| format!("Unable to create {:?}: {:?}", json_deposit_data_path, e))?;
+
+        serde_json::to_writer(&mut file, &json_deposit_data)
+            .map_err(|e| format!("Unable write JSON to {:?}: {:?}", json_deposit_data_path, e))?;
+    }
+
     Ok(())
 }