openethereum/parity/main.rs

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// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
//! Ethcore client application.
#![warn(missing_docs)]
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#![cfg_attr(feature="dev", feature(plugin))]
#![cfg_attr(feature="dev", plugin(clippy))]
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#![cfg_attr(feature="dev", allow(useless_format))]
#![cfg_attr(feature="dev", allow(match_bool))]
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extern crate ansi_term;
extern crate app_dirs;
extern crate ctrlc;
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extern crate docopt;
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extern crate env_logger;
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extern crate fdlimit;
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extern crate futures;
extern crate futures_cpupool;
extern crate isatty;
extern crate jsonrpc_core;
extern crate num_cpus;
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extern crate number_prefix;
extern crate regex;
extern crate rlp;
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extern crate rpassword;
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extern crate rustc_hex;
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extern crate semver;
extern crate serde;
extern crate serde_json;
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#[macro_use]
extern crate serde_derive;
extern crate time;
extern crate toml;
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extern crate ethcore;
extern crate ethcore_devtools as devtools;
extern crate ethcore_io as io;
extern crate ethcore_ipc as ipc;
extern crate ethcore_ipc_hypervisor as hypervisor;
extern crate ethcore_ipc_nano as nanoipc;
extern crate ethcore_light as light;
extern crate ethcore_logger;
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extern crate ethcore_util as util;
extern crate ethkey;
extern crate ethsync;
extern crate parity_hash_fetch as hash_fetch;
extern crate parity_ipfs_api;
extern crate parity_local_store as local_store;
extern crate parity_reactor;
extern crate parity_rpc;
extern crate parity_updater as updater;
extern crate path;
extern crate rpc_cli;
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#[macro_use]
extern crate log as rlog;
#[cfg(feature="stratum")]
extern crate ethcore_stratum;
#[cfg(feature="secretstore")]
extern crate ethcore_secretstore;
#[cfg(feature = "dapps")]
extern crate parity_dapps;
#[cfg(test)]
#[macro_use]
extern crate pretty_assertions;
#[cfg(windows)] extern crate ws2_32;
#[cfg(windows)] extern crate winapi;
mod account;
mod blockchain;
cli overhaul (#1600) * cli commands * cleanup parity/signer * cleanup parity/signer * remove redundant import of signer crate from main.rs * cli cleanup in progress * cli cleanup in progress * moved few commonly used functions to separate methods with tests * cleaning up blockchain import in progress * cleaning up blockchain import in progress2 * cleaning up blockchain import in progress3 * tests for database compaction profile parsing * cleaning up blockchain import in progress4 * cleaning up blockchain import in progress5 * blockchain import * export blockchain in progress * cleanup execute_export * Configuration::to_duration cleaned up * removed unused code, tests for to_duration * cleanup Configuration::mode function * parsing some of the cli params in params.rs * rpc and signer are no longer optional * move importing extern crates to main.rs file * swipe dies from rpc module * swipe dies from dapps * finding deprecated * several tests and fixes for parity * parity cleanup in progress * cleanup price parsing * parity cleanup in progress * swiped all dies * parity cleanup in progress * replace usages of from_str with parse() in parity/params.rs * removed few more from_str * split parity/params.rs into params and helpers * removed wildcard import from configuration.rs * cleanup directories/path creation * cleaning up run cmd * moved LoggerConfig * defaults for cli params * fixed indention in raise_fd_limit * tests for rpc_apis * tests for default ipc and rpc settings * ipc socket * cleanup in progress * account service * cleanup miner config * BlockChain commands use Directiores structure now * client_config * network settings and dapps configuration * removing warnings * default logger config * fixed client_path * overhaul * fixing export && import * default export DataFormat * import and export also upgrade db * fixed export && import * polishing pr * polishing pr * fixed custom bootnodes * fixed daemonize on windows * fixed setting up enable network * finished pr * fixed compiling on windows * Fixed warning; windows build * Better cache management * Fixed tests on windows * Fixed test * Restored pruning method names * --cache alias * Fixed more tests * Ensure default options actually listed as valid [ci:skip]
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mod cache;
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mod cli;
mod configuration;
mod dapps;
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mod ipfs;
cli overhaul (#1600) * cli commands * cleanup parity/signer * cleanup parity/signer * remove redundant import of signer crate from main.rs * cli cleanup in progress * cli cleanup in progress * moved few commonly used functions to separate methods with tests * cleaning up blockchain import in progress * cleaning up blockchain import in progress2 * cleaning up blockchain import in progress3 * tests for database compaction profile parsing * cleaning up blockchain import in progress4 * cleaning up blockchain import in progress5 * blockchain import * export blockchain in progress * cleanup execute_export * Configuration::to_duration cleaned up * removed unused code, tests for to_duration * cleanup Configuration::mode function * parsing some of the cli params in params.rs * rpc and signer are no longer optional * move importing extern crates to main.rs file * swipe dies from rpc module * swipe dies from dapps * finding deprecated * several tests and fixes for parity * parity cleanup in progress * cleanup price parsing * parity cleanup in progress * swiped all dies * parity cleanup in progress * replace usages of from_str with parse() in parity/params.rs * removed few more from_str * split parity/params.rs into params and helpers * removed wildcard import from configuration.rs * cleanup directories/path creation * cleaning up run cmd * moved LoggerConfig * defaults for cli params * fixed indention in raise_fd_limit * tests for rpc_apis * tests for default ipc and rpc settings * ipc socket * cleanup in progress * account service * cleanup miner config * BlockChain commands use Directiores structure now * client_config * network settings and dapps configuration * removing warnings * default logger config * fixed client_path * overhaul * fixing export && import * default export DataFormat * import and export also upgrade db * fixed export && import * polishing pr * polishing pr * fixed custom bootnodes * fixed daemonize on windows * fixed setting up enable network * finished pr * fixed compiling on windows * Fixed warning; windows build * Better cache management * Fixed tests on windows * Fixed test * Restored pruning method names * --cache alias * Fixed more tests * Ensure default options actually listed as valid [ci:skip]
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mod deprecated;
mod dir;
mod helpers;
mod informant;
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mod light_helpers;
mod migration;
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mod modules;
mod params;
cli overhaul (#1600) * cli commands * cleanup parity/signer * cleanup parity/signer * remove redundant import of signer crate from main.rs * cli cleanup in progress * cli cleanup in progress * moved few commonly used functions to separate methods with tests * cleaning up blockchain import in progress * cleaning up blockchain import in progress2 * cleaning up blockchain import in progress3 * tests for database compaction profile parsing * cleaning up blockchain import in progress4 * cleaning up blockchain import in progress5 * blockchain import * export blockchain in progress * cleanup execute_export * Configuration::to_duration cleaned up * removed unused code, tests for to_duration * cleanup Configuration::mode function * parsing some of the cli params in params.rs * rpc and signer are no longer optional * move importing extern crates to main.rs file * swipe dies from rpc module * swipe dies from dapps * finding deprecated * several tests and fixes for parity * parity cleanup in progress * cleanup price parsing * parity cleanup in progress * swiped all dies * parity cleanup in progress * replace usages of from_str with parse() in parity/params.rs * removed few more from_str * split parity/params.rs into params and helpers * removed wildcard import from configuration.rs * cleanup directories/path creation * cleaning up run cmd * moved LoggerConfig * defaults for cli params * fixed indention in raise_fd_limit * tests for rpc_apis * tests for default ipc and rpc settings * ipc socket * cleanup in progress * account service * cleanup miner config * BlockChain commands use Directiores structure now * client_config * network settings and dapps configuration * removing warnings * default logger config * fixed client_path * overhaul * fixing export && import * default export DataFormat * import and export also upgrade db * fixed export && import * polishing pr * polishing pr * fixed custom bootnodes * fixed daemonize on windows * fixed setting up enable network * finished pr * fixed compiling on windows * Fixed warning; windows build * Better cache management * Fixed tests on windows * Fixed test * Restored pruning method names * --cache alias * Fixed more tests * Ensure default options actually listed as valid [ci:skip]
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mod presale;
mod rpc;
mod rpc_apis;
cli overhaul (#1600) * cli commands * cleanup parity/signer * cleanup parity/signer * remove redundant import of signer crate from main.rs * cli cleanup in progress * cli cleanup in progress * moved few commonly used functions to separate methods with tests * cleaning up blockchain import in progress * cleaning up blockchain import in progress2 * cleaning up blockchain import in progress3 * tests for database compaction profile parsing * cleaning up blockchain import in progress4 * cleaning up blockchain import in progress5 * blockchain import * export blockchain in progress * cleanup execute_export * Configuration::to_duration cleaned up * removed unused code, tests for to_duration * cleanup Configuration::mode function * parsing some of the cli params in params.rs * rpc and signer are no longer optional * move importing extern crates to main.rs file * swipe dies from rpc module * swipe dies from dapps * finding deprecated * several tests and fixes for parity * parity cleanup in progress * cleanup price parsing * parity cleanup in progress * swiped all dies * parity cleanup in progress * replace usages of from_str with parse() in parity/params.rs * removed few more from_str * split parity/params.rs into params and helpers * removed wildcard import from configuration.rs * cleanup directories/path creation * cleaning up run cmd * moved LoggerConfig * defaults for cli params * fixed indention in raise_fd_limit * tests for rpc_apis * tests for default ipc and rpc settings * ipc socket * cleanup in progress * account service * cleanup miner config * BlockChain commands use Directiores structure now * client_config * network settings and dapps configuration * removing warnings * default logger config * fixed client_path * overhaul * fixing export && import * default export DataFormat * import and export also upgrade db * fixed export && import * polishing pr * polishing pr * fixed custom bootnodes * fixed daemonize on windows * fixed setting up enable network * finished pr * fixed compiling on windows * Fixed warning; windows build * Better cache management * Fixed tests on windows * Fixed test * Restored pruning method names * --cache alias * Fixed more tests * Ensure default options actually listed as valid [ci:skip]
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mod run;
mod secretstore;
mod signer;
mod snapshot;
mod upgrade;
mod url;
mod user_defaults;
#[cfg(feature="ipc")]
mod boot;
#[cfg(feature="ipc")]
mod sync;
#[cfg(feature="stratum")]
mod stratum;
cli overhaul (#1600) * cli commands * cleanup parity/signer * cleanup parity/signer * remove redundant import of signer crate from main.rs * cli cleanup in progress * cli cleanup in progress * moved few commonly used functions to separate methods with tests * cleaning up blockchain import in progress * cleaning up blockchain import in progress2 * cleaning up blockchain import in progress3 * tests for database compaction profile parsing * cleaning up blockchain import in progress4 * cleaning up blockchain import in progress5 * blockchain import * export blockchain in progress * cleanup execute_export * Configuration::to_duration cleaned up * removed unused code, tests for to_duration * cleanup Configuration::mode function * parsing some of the cli params in params.rs * rpc and signer are no longer optional * move importing extern crates to main.rs file * swipe dies from rpc module * swipe dies from dapps * finding deprecated * several tests and fixes for parity * parity cleanup in progress * cleanup price parsing * parity cleanup in progress * swiped all dies * parity cleanup in progress * replace usages of from_str with parse() in parity/params.rs * removed few more from_str * split parity/params.rs into params and helpers * removed wildcard import from configuration.rs * cleanup directories/path creation * cleaning up run cmd * moved LoggerConfig * defaults for cli params * fixed indention in raise_fd_limit * tests for rpc_apis * tests for default ipc and rpc settings * ipc socket * cleanup in progress * account service * cleanup miner config * BlockChain commands use Directiores structure now * client_config * network settings and dapps configuration * removing warnings * default logger config * fixed client_path * overhaul * fixing export && import * default export DataFormat * import and export also upgrade db * fixed export && import * polishing pr * polishing pr * fixed custom bootnodes * fixed daemonize on windows * fixed setting up enable network * finished pr * fixed compiling on windows * Fixed warning; windows build * Better cache management * Fixed tests on windows * Fixed test * Restored pruning method names * --cache alias * Fixed more tests * Ensure default options actually listed as valid [ci:skip]
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use std::{process, env};
use std::collections::HashMap;
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use std::io::{self as stdio, BufReader, Read, Write};
use std::fs::{remove_file, metadata, File, create_dir_all};
use std::path::PathBuf;
use util::sha3::sha3;
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use cli::Args;
use configuration::{Cmd, Execute, Configuration};
cli overhaul (#1600) * cli commands * cleanup parity/signer * cleanup parity/signer * remove redundant import of signer crate from main.rs * cli cleanup in progress * cli cleanup in progress * moved few commonly used functions to separate methods with tests * cleaning up blockchain import in progress * cleaning up blockchain import in progress2 * cleaning up blockchain import in progress3 * tests for database compaction profile parsing * cleaning up blockchain import in progress4 * cleaning up blockchain import in progress5 * blockchain import * export blockchain in progress * cleanup execute_export * Configuration::to_duration cleaned up * removed unused code, tests for to_duration * cleanup Configuration::mode function * parsing some of the cli params in params.rs * rpc and signer are no longer optional * move importing extern crates to main.rs file * swipe dies from rpc module * swipe dies from dapps * finding deprecated * several tests and fixes for parity * parity cleanup in progress * cleanup price parsing * parity cleanup in progress * swiped all dies * parity cleanup in progress * replace usages of from_str with parse() in parity/params.rs * removed few more from_str * split parity/params.rs into params and helpers * removed wildcard import from configuration.rs * cleanup directories/path creation * cleaning up run cmd * moved LoggerConfig * defaults for cli params * fixed indention in raise_fd_limit * tests for rpc_apis * tests for default ipc and rpc settings * ipc socket * cleanup in progress * account service * cleanup miner config * BlockChain commands use Directiores structure now * client_config * network settings and dapps configuration * removing warnings * default logger config * fixed client_path * overhaul * fixing export && import * default export DataFormat * import and export also upgrade db * fixed export && import * polishing pr * polishing pr * fixed custom bootnodes * fixed daemonize on windows * fixed setting up enable network * finished pr * fixed compiling on windows * Fixed warning; windows build * Better cache management * Fixed tests on windows * Fixed test * Restored pruning method names * --cache alias * Fixed more tests * Ensure default options actually listed as valid [ci:skip]
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use deprecated::find_deprecated;
use ethcore_logger::setup_log;
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use dir::default_hypervisor_path;
cli overhaul (#1600) * cli commands * cleanup parity/signer * cleanup parity/signer * remove redundant import of signer crate from main.rs * cli cleanup in progress * cli cleanup in progress * moved few commonly used functions to separate methods with tests * cleaning up blockchain import in progress * cleaning up blockchain import in progress2 * cleaning up blockchain import in progress3 * tests for database compaction profile parsing * cleaning up blockchain import in progress4 * cleaning up blockchain import in progress5 * blockchain import * export blockchain in progress * cleanup execute_export * Configuration::to_duration cleaned up * removed unused code, tests for to_duration * cleanup Configuration::mode function * parsing some of the cli params in params.rs * rpc and signer are no longer optional * move importing extern crates to main.rs file * swipe dies from rpc module * swipe dies from dapps * finding deprecated * several tests and fixes for parity * parity cleanup in progress * cleanup price parsing * parity cleanup in progress * swiped all dies * parity cleanup in progress * replace usages of from_str with parse() in parity/params.rs * removed few more from_str * split parity/params.rs into params and helpers * removed wildcard import from configuration.rs * cleanup directories/path creation * cleaning up run cmd * moved LoggerConfig * defaults for cli params * fixed indention in raise_fd_limit * tests for rpc_apis * tests for default ipc and rpc settings * ipc socket * cleanup in progress * account service * cleanup miner config * BlockChain commands use Directiores structure now * client_config * network settings and dapps configuration * removing warnings * default logger config * fixed client_path * overhaul * fixing export && import * default export DataFormat * import and export also upgrade db * fixed export && import * polishing pr * polishing pr * fixed custom bootnodes * fixed daemonize on windows * fixed setting up enable network * finished pr * fixed compiling on windows * Fixed warning; windows build * Better cache management * Fixed tests on windows * Fixed test * Restored pruning method names * --cache alias * Fixed more tests * Ensure default options actually listed as valid [ci:skip]
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fn print_hash_of(maybe_file: Option<String>) -> Result<String, String> {
if let Some(file) = maybe_file {
let mut f = BufReader::new(File::open(&file).map_err(|_| "Unable to open file".to_owned())?);
let hash = sha3(&mut f).map_err(|_| "Unable to read from file".to_owned())?;
Ok(hash.hex())
} else {
Err("Streaming from standard input not yet supported. Specify a file.".to_owned())
}
}
enum PostExecutionAction {
Print(String),
Restart(Option<String>),
Quit,
}
fn execute(command: Execute, can_restart: bool) -> Result<PostExecutionAction, String> {
let logger = setup_log(&command.logger).expect("Logger is initialized only once; qed");
match command.cmd {
cli overhaul (#1600) * cli commands * cleanup parity/signer * cleanup parity/signer * remove redundant import of signer crate from main.rs * cli cleanup in progress * cli cleanup in progress * moved few commonly used functions to separate methods with tests * cleaning up blockchain import in progress * cleaning up blockchain import in progress2 * cleaning up blockchain import in progress3 * tests for database compaction profile parsing * cleaning up blockchain import in progress4 * cleaning up blockchain import in progress5 * blockchain import * export blockchain in progress * cleanup execute_export * Configuration::to_duration cleaned up * removed unused code, tests for to_duration * cleanup Configuration::mode function * parsing some of the cli params in params.rs * rpc and signer are no longer optional * move importing extern crates to main.rs file * swipe dies from rpc module * swipe dies from dapps * finding deprecated * several tests and fixes for parity * parity cleanup in progress * cleanup price parsing * parity cleanup in progress * swiped all dies * parity cleanup in progress * replace usages of from_str with parse() in parity/params.rs * removed few more from_str * split parity/params.rs into params and helpers * removed wildcard import from configuration.rs * cleanup directories/path creation * cleaning up run cmd * moved LoggerConfig * defaults for cli params * fixed indention in raise_fd_limit * tests for rpc_apis * tests for default ipc and rpc settings * ipc socket * cleanup in progress * account service * cleanup miner config * BlockChain commands use Directiores structure now * client_config * network settings and dapps configuration * removing warnings * default logger config * fixed client_path * overhaul * fixing export && import * default export DataFormat * import and export also upgrade db * fixed export && import * polishing pr * polishing pr * fixed custom bootnodes * fixed daemonize on windows * fixed setting up enable network * finished pr * fixed compiling on windows * Fixed warning; windows build * Better cache management * Fixed tests on windows * Fixed test * Restored pruning method names * --cache alias * Fixed more tests * Ensure default options actually listed as valid [ci:skip]
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Cmd::Run(run_cmd) => {
let (restart, spec_name) = run::execute(run_cmd, can_restart, logger)?;
Ok(if restart { PostExecutionAction::Restart(spec_name) } else { PostExecutionAction::Quit })
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},
Cmd::Version => Ok(PostExecutionAction::Print(Args::print_version())),
Cmd::Hash(maybe_file) => print_hash_of(maybe_file).map(|s| PostExecutionAction::Print(s)),
Cmd::Account(account_cmd) => account::execute(account_cmd).map(|s| PostExecutionAction::Print(s)),
Cmd::ImportPresaleWallet(presale_cmd) => presale::execute(presale_cmd).map(|s| PostExecutionAction::Print(s)),
Cmd::Blockchain(blockchain_cmd) => blockchain::execute(blockchain_cmd).map(|_| PostExecutionAction::Quit),
Cmd::SignerToken(ws_conf, ui_conf) => signer::execute(ws_conf, ui_conf).map(|s| PostExecutionAction::Print(s)),
Cmd::SignerSign { id, pwfile, port, authfile } => rpc_cli::signer_sign(id, pwfile, port, authfile).map(|s| PostExecutionAction::Print(s)),
Cmd::SignerList { port, authfile } => rpc_cli::signer_list(port, authfile).map(|s| PostExecutionAction::Print(s)),
Cmd::SignerReject { id, port, authfile } => rpc_cli::signer_reject(id, port, authfile).map(|s| PostExecutionAction::Print(s)),
Cmd::Snapshot(snapshot_cmd) => snapshot::execute(snapshot_cmd).map(|s| PostExecutionAction::Print(s)),
}
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}
fn start(can_restart: bool) -> Result<PostExecutionAction, String> {
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let args: Vec<String> = env::args().collect();
let conf = Configuration::parse(&args, take_spec_name_override()).unwrap_or_else(|e| e.exit());
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cli overhaul (#1600) * cli commands * cleanup parity/signer * cleanup parity/signer * remove redundant import of signer crate from main.rs * cli cleanup in progress * cli cleanup in progress * moved few commonly used functions to separate methods with tests * cleaning up blockchain import in progress * cleaning up blockchain import in progress2 * cleaning up blockchain import in progress3 * tests for database compaction profile parsing * cleaning up blockchain import in progress4 * cleaning up blockchain import in progress5 * blockchain import * export blockchain in progress * cleanup execute_export * Configuration::to_duration cleaned up * removed unused code, tests for to_duration * cleanup Configuration::mode function * parsing some of the cli params in params.rs * rpc and signer are no longer optional * move importing extern crates to main.rs file * swipe dies from rpc module * swipe dies from dapps * finding deprecated * several tests and fixes for parity * parity cleanup in progress * cleanup price parsing * parity cleanup in progress * swiped all dies * parity cleanup in progress * replace usages of from_str with parse() in parity/params.rs * removed few more from_str * split parity/params.rs into params and helpers * removed wildcard import from configuration.rs * cleanup directories/path creation * cleaning up run cmd * moved LoggerConfig * defaults for cli params * fixed indention in raise_fd_limit * tests for rpc_apis * tests for default ipc and rpc settings * ipc socket * cleanup in progress * account service * cleanup miner config * BlockChain commands use Directiores structure now * client_config * network settings and dapps configuration * removing warnings * default logger config * fixed client_path * overhaul * fixing export && import * default export DataFormat * import and export also upgrade db * fixed export && import * polishing pr * polishing pr * fixed custom bootnodes * fixed daemonize on windows * fixed setting up enable network * finished pr * fixed compiling on windows * Fixed warning; windows build * Better cache management * Fixed tests on windows * Fixed test * Restored pruning method names * --cache alias * Fixed more tests * Ensure default options actually listed as valid [ci:skip]
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let deprecated = find_deprecated(&conf.args);
for d in deprecated {
println!("{}", d);
}
let cmd = conf.into_command()?;
execute(cmd, can_restart)
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}
#[cfg(not(feature="stratum"))]
fn stratum_main(_: &mut HashMap<String, fn()>) {}
#[cfg(feature="stratum")]
fn stratum_main(alt_mains: &mut HashMap<String, fn()>) {
alt_mains.insert("stratum".to_owned(), stratum::main);
}
#[cfg(not(feature="ipc"))]
fn sync_main(_: &mut HashMap<String, fn()>) {}
#[cfg(feature="ipc")]
fn sync_main(alt_mains: &mut HashMap<String, fn()>) {
alt_mains.insert("sync".to_owned(), sync::main);
}
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fn updates_path(name: &str) -> PathBuf {
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let mut dest = PathBuf::from(default_hypervisor_path());
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dest.push(name);
dest
}
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fn latest_exe_path() -> Option<PathBuf> {
File::open(updates_path("latest")).ok()
.and_then(|mut f| { let mut exe = String::new(); f.read_to_string(&mut exe).ok().map(|_| updates_path(&exe)) })
}
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fn set_spec_name_override(spec_name: String) {
if let Err(e) = create_dir_all(default_hypervisor_path())
.and_then(|_| File::create(updates_path("spec_name_overide"))
.and_then(|mut f| f.write_all(spec_name.as_bytes())))
{
warn!("Couldn't override chain spec: {} at {:?}", e, updates_path("spec_name_overide"));
}
}
fn take_spec_name_override() -> Option<String> {
let p = updates_path("spec_name_overide");
let r = File::open(p.clone()).ok()
.and_then(|mut f| { let mut spec_name = String::new(); f.read_to_string(&mut spec_name).ok().map(|_| spec_name) });
let _ = remove_file(p);
r
}
#[cfg(windows)]
fn global_cleanup() {
// We need to cleanup all sockets before spawning another Parity process. This makes shure everything is cleaned up.
// The loop is required because of internal refernce counter for winsock dll. We don't know how many crates we use do
// initialize it. There's at least 2 now.
for _ in 0.. 10 {
unsafe { ::ws2_32::WSACleanup(); }
}
}
#[cfg(not(windows))]
fn global_init() {}
#[cfg(windows)]
fn global_init() {
// When restarting in the same process this reinits windows sockets.
unsafe {
const WS_VERSION: u16 = 0x202;
let mut wsdata: ::winapi::winsock2::WSADATA = ::std::mem::zeroed();
::ws2_32::WSAStartup(WS_VERSION, &mut wsdata);
}
}
#[cfg(not(windows))]
fn global_cleanup() {}
// Starts ~/.parity-updates/parity and returns the code it exits with.
fn run_parity() -> Option<i32> {
global_init();
use ::std::ffi::OsString;
let prefix = vec![OsString::from("--can-restart"), OsString::from("--force-direct")];
let res = latest_exe_path().and_then(|exe| process::Command::new(exe)
.args(&(env::args_os().skip(1).chain(prefix.into_iter()).collect::<Vec<_>>()))
.status()
.map(|es| es.code().unwrap_or(128))
.ok()
);
global_cleanup();
res
}
const PLEASE_RESTART_EXIT_CODE: i32 = 69;
// Run our version of parity.
// Returns the exit error code.
fn main_direct(can_restart: bool) -> i32 {
global_init();
let mut alt_mains = HashMap::new();
sync_main(&mut alt_mains);
stratum_main(&mut alt_mains);
let res = if let Some(f) = std::env::args().nth(1).and_then(|arg| alt_mains.get(&arg.to_string())) {
f();
0
} else {
match start(can_restart) {
Ok(result) => match result {
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PostExecutionAction::Print(s) => { println!("{}", s); 0 },
PostExecutionAction::Restart(spec_name_override) => {
if let Some(spec_name) = spec_name_override {
set_spec_name_override(spec_name);
}
PLEASE_RESTART_EXIT_CODE
},
PostExecutionAction::Quit => 0,
},
Err(err) => {
writeln!(&mut stdio::stderr(), "{}", err).expect("StdErr available; qed");
1
},
}
};
global_cleanup();
res
}
fn println_trace_main(s: String) {
if env::var("RUST_LOG").ok().and_then(|s| s.find("main=trace")).is_some() {
println!("{}", s);
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}
}
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#[macro_export]
macro_rules! trace_main {
($arg:expr) => (println_trace_main($arg.into()));
($($arg:tt)*) => (println_trace_main(format!("{}", format_args!($($arg)*))));
}
fn main() {
// Always print backtrace on panic.
env::set_var("RUST_BACKTRACE", "1");
// assuming the user is not running with `--force-direct`, then:
// if argv[0] == "parity" and this executable != ~/.parity-updates/parity, run that instead.
let force_direct = std::env::args().any(|arg| arg == "--force-direct");
let exe = std::env::current_exe().ok();
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let development = exe.as_ref().and_then(|p| p.parent().and_then(|p| p.parent()).and_then(|p| p.file_name()).map(|n| n == "target")).unwrap_or(false);
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let same_name = exe.as_ref().map(|p| p.file_stem().map_or(false, |s| s == "parity") && p.extension().map_or(true, |x| x == "exe")).unwrap_or(false);
trace_main!("Starting up {} (force-direct: {}, development: {}, same-name: {})", std::env::current_exe().map(|x| format!("{}", x.display())).unwrap_or("<unknown>".to_owned()), force_direct, development, same_name);
if !force_direct && !development && same_name {
// looks like we're not running ~/.parity-updates/parity when the user is expecting otherwise.
// Everything run inside a loop, so we'll be able to restart from the child into a new version seamlessly.
loop {
// If we fail to run the updated parity then fallback to local version.
let latest_exe = latest_exe_path();
let have_update = latest_exe.as_ref().map_or(false, |p| p.exists());
let is_non_updated_current = exe.as_ref().map_or(false, |exe| latest_exe.as_ref().map_or(false, |lexe| exe.canonicalize().ok() != lexe.canonicalize().ok()));
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let update_is_newer = match (
latest_exe.as_ref()
.and_then(|p| metadata(p.as_path()).ok())
.and_then(|m| m.modified().ok()),
exe.as_ref()
.and_then(|p| metadata(p.as_path()).ok())
.and_then(|m| m.modified().ok())
) {
(Some(latest_exe_time), Some(this_exe_time)) if latest_exe_time > this_exe_time => true,
_ => false,
};
trace_main!("Starting... (have-update: {}, non-updated-current: {}, update-is-newer: {})", have_update, is_non_updated_current, update_is_newer);
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let exit_code = if have_update && is_non_updated_current && update_is_newer {
trace_main!("Attempting to run latest update ({})...", latest_exe.as_ref().expect("guarded by have_update; latest_exe must exist for have_update; qed").display());
run_parity().unwrap_or_else(|| { trace_main!("Falling back to local..."); main_direct(true) })
} else {
trace_main!("No latest update. Attempting to direct...");
main_direct(true)
};
trace_main!("Latest exited with {}", exit_code);
if exit_code != PLEASE_RESTART_EXIT_CODE {
trace_main!("Quitting...");
process::exit(exit_code);
}
trace_main!("Rerunning...");
}
} else {
trace_main!("Running direct");
// Otherwise, we're presumably running the version we want. Just run and fall-through.
let can_restart = std::env::args().any(|arg| arg == "--can-restart");
process::exit(main_direct(can_restart));
}
}
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