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Update to use v0.9.2 version of deposit contract

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This commit is contained in:
Paul Hauner
2019-11-24 16:38:15 +11:00
parent 6bf73e2b55
commit ad65d72814
4 changed files with 48 additions and 25 deletions
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54
eth2/utils/deposit_contract/build.rs
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@@ -3,21 +3,23 @@
//!
//! These files are required for some `include_bytes` calls used in this crate.
use reqwest::Response;
use serde_json::Value;
use std::env;
use std::fs::File;
use std::io::Write;
use std::path::PathBuf;
const GITHUB_RAW: &str = "https://raw.githubusercontent.com";
const SPEC_REPO: &str = "ethereum/eth2.0-specs";
const SPEC_TAG: &str = "v0.8.3";
const ABI_FILE: &str = "validator_registration.json";
const BYTECODE_FILE: &str = "validator_registration.bytecode";
const TAG: &str = "v0.9.2";
fn spec_url() -> String {
format!("https://raw.githubusercontent.com/ethereum/eth2.0-specs/{}/deposit_contract/contracts/validator_registration.json", TAG)
}
fn testnet_url() -> String {
format!("https://raw.githubusercontent.com/sigp/unsafe-eth2-deposit-contract/{}/unsafe_validator_registration.json", TAG)
}
fn main() {
match init_deposit_contract_abi() {
match get_all_contracts() {
Ok(()) => (),
Err(e) => panic!(e),
}
@@ -25,14 +27,33 @@ fn main() {
/// Attempts to download the deposit contract ABI from github if a local copy is not already
/// present.
pub fn init_deposit_contract_abi() -> Result<(), String> {
let abi_file = abi_dir().join(format!("{}_{}", SPEC_TAG, ABI_FILE));
let bytecode_file = abi_dir().join(format!("{}_{}", SPEC_TAG, BYTECODE_FILE));
pub fn get_all_contracts() -> Result<(), String> {
download_deposit_contract(
&spec_url(),
"validator_registration.json",
"validator_registration.bytecode",
)?;
download_deposit_contract(
&testnet_url(),
"testnet_validator_registration.json",
"testnet_validator_registration.bytecode",
)
}
/// Attempts to download the deposit contract ABI from github if a local copy is not already
/// present.
pub fn download_deposit_contract(
url: &str,
abi_file: &str,
bytecode_file: &str,
) -> Result<(), String> {
let abi_file = abi_dir().join(format!("{}_{}", TAG, abi_file));
let bytecode_file = abi_dir().join(format!("{}_{}", TAG, bytecode_file));
if abi_file.exists() {
// Nothing to do.
} else {
match download_abi() {
match reqwest::get(url) {
Ok(mut response) => {
let mut abi_file = File::create(abi_file)
.map_err(|e| format!("Failed to create local abi file: {:?}", e))?;
@@ -71,22 +92,13 @@ pub fn init_deposit_contract_abi() -> Result<(), String> {
Ok(())
}
/// Attempts to download the deposit contract file from the Ethereum github.
fn download_abi() -> Result<Response, String> {
reqwest::get(&format!(
"{}/{}/{}/deposit_contract/contracts/{}",
GITHUB_RAW, SPEC_REPO, SPEC_TAG, ABI_FILE
))
.map_err(|e| format!("Failed to download deposit ABI from github: {:?}", e))
}
/// Returns the directory that will be used to store the deposit contract ABI.
fn abi_dir() -> PathBuf {
let base = env::var("CARGO_MANIFEST_DIR")
.expect("should know manifest dir")
.parse::<PathBuf>()
.expect("should parse manifest dir as path")
.join("contract");
.join("contracts");
std::fs::create_dir_all(base.clone())
.expect("should be able to create abi directory in manifest");