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use std::collections::HashSet;
use std::path::Path;
use std::fs;
use ethkey::Address;
use accounts_dir::{KeyDirectory, RootDiskDirectory, DiskKeyFileManager, KeyFileManager};
use dir;
use Error;
pub fn import_account(path: &Path, dst: &KeyDirectory) -> Result<Address, Error> {
let key_manager = DiskKeyFileManager;
let existing_accounts = dst.load()?.into_iter().map(|a| a.address).collect::<HashSet<_>>();
let filename = path.file_name().and_then(|n| n.to_str()).map(|f| f.to_owned());
let account = fs::File::open(&path)
.map_err(Into::into)
.and_then(|file| key_manager.read(filename, file))?;
let address = account.address.clone();
if !existing_accounts.contains(&address) {
dst.insert(account)?;
}
Ok(address)
}
pub fn import_accounts(src: &KeyDirectory, dst: &KeyDirectory) -> Result<Vec<Address>, Error> {
let accounts = src.load()?;
let existing_accounts = dst.load()?.into_iter().map(|a| a.address).collect::<HashSet<_>>();
accounts.into_iter()
.filter(|a| !existing_accounts.contains(&a.address))
.map(|a| {
let address = a.address.clone();
dst.insert(a)?;
Ok(address)
}).collect()
}
pub fn read_geth_accounts(testnet: bool) -> Vec<Address> {
RootDiskDirectory::at(dir::geth(testnet))
.load()
.map(|d| d.into_iter().map(|a| a.address).collect())
.unwrap_or_else(|_| Vec::new())
}
pub fn import_geth_accounts(dst: &KeyDirectory, desired: HashSet<Address>, testnet: bool) -> Result<Vec<Address>, Error> {
let src = RootDiskDirectory::at(dir::geth(testnet));
let accounts = src.load()?;
let existing_accounts = dst.load()?.into_iter().map(|a| a.address).collect::<HashSet<_>>();
accounts.into_iter()
.filter(|a| !existing_accounts.contains(&a.address))
.filter(|a| desired.contains(&a.address))
.map(|a| {
let address = a.address.clone();
dst.insert(a)?;
Ok(address)
}).collect()
}