Run cargo +nightly fmt

Add a `rustfmt` configuration file setting a bunch of configuration
options. All options that are not the default value include a comment
with the default value.

Run `cargo +nightly fmt`. No other changes made.

examples/bip32.rs

@@ -1,17 +1,14 @@
 extern crate bitcoin;
 
-use std::{env, process};
 use std::str::FromStr;
+use std::{env, process};
 
+use bitcoin::hashes::hex::FromHex;
+use bitcoin::secp256k1::ffi::types::AlignedType;
 use bitcoin::secp256k1::Secp256k1;
-use bitcoin::PublicKey;
-use bitcoin::util::bip32::ExtendedPrivKey;
-use bitcoin::util::bip32::ExtendedPubKey;
-use bitcoin::util::bip32::DerivationPath;
-use bitcoin::util::bip32::ChildNumber;
 use bitcoin::util::address::Address;
-use bitcoin::secp256k1::ffi::types::AlignedType;
-use bitcoin::hashes::hex::FromHex;
+use bitcoin::util::bip32::{ChildNumber, DerivationPath, ExtendedPrivKey, ExtendedPubKey};
+use bitcoin::PublicKey;
 
 fn main() {
     // This example derives root xprv from a 32-byte seed,
@@ -55,10 +52,7 @@ fn main() {
     // generate first receiving address at m/0/0
     // manually creating indexes this time
     let zero = ChildNumber::from_normal_idx(0).unwrap();
-    let public_key = xpub.derive_pub(&secp, &vec![zero, zero])
-                         .unwrap()
-                         .public_key;
+    let public_key = xpub.derive_pub(&secp, &vec![zero, zero]).unwrap().public_key;
     let address = Address::p2wpkh(&PublicKey::new(public_key), network).unwrap();
     println!("First receiving address: {}", address);
-
 }

examples/handshake.rs

@@ -1,9 +1,9 @@
 extern crate bitcoin;
 
+use std::io::{BufReader, Write};
 use std::net::{IpAddr, Ipv4Addr, Shutdown, SocketAddr, TcpStream};
 use std::time::{SystemTime, UNIX_EPOCH};
 use std::{env, process};
-use std::io::{Write, BufReader};
 
 use bitcoin::consensus::{encode, Decodable};
 use bitcoin::network::{address, constants, message, message_network};
@@ -80,10 +80,7 @@ fn build_version_message(address: SocketAddr) -> message::NetworkMessage {
     let services = constants::ServiceFlags::NONE;
 
     // "standard UNIX timestamp in seconds"
-    let timestamp = SystemTime::now()
-        .duration_since(UNIX_EPOCH)
-        .expect("Time error")
-        .as_secs();
+    let timestamp = SystemTime::now().duration_since(UNIX_EPOCH).expect("Time error").as_secs();
 
     // "The network address of the node receiving this message"
     let addr_recv = address::Address::new(&address, constants::ServiceFlags::NONE);

rustfmt.toml

@@ -1 +1,77 @@
-disable_all_formatting = true
+max_width = 100
+hard_tabs = false
+tab_spaces = 4
+newline_style = "Auto"
+indent_style = "Block"
+use_small_heuristics = "Default"
+fn_call_width = 80                 # Default 60
+attr_fn_like_width = 80            # Default 70
+struct_lit_width = 50              # Default 18
+struct_variant_width = 80          # Default 35
+array_width = 80                   # Default 60
+chain_width = 80                   # Default 60
+single_line_if_else_max_width = 80 # Default 50
+wrap_comments = false
+format_code_in_doc_comments = false
+comment_width = 100             # Default 80
+normalize_comments = false
+normalize_doc_attributes = false
+license_template_path = ""
+format_strings = false
+format_macro_matchers = false
+format_macro_bodies = true
+hex_literal_case = "Preserve"
+empty_item_single_line = true
+struct_lit_single_line = true
+fn_single_line = true           # Default false
+where_single_line = false
+imports_indent = "Block"
+imports_layout = "Mixed"
+imports_granularity = "Module"     # Default "Preserve"
+group_imports = "StdExternalCrate" # Default "Preserve"
+reorder_imports = true
+reorder_modules = true
+reorder_impl_items = false
+type_punctuation_density = "Wide"
+space_before_colon = false
+space_after_colon = true
+spaces_around_ranges = false
+binop_separator = "Front"
+remove_nested_parens = true
+combine_control_expr = true
+overflow_delimited_expr = false
+struct_field_align_threshold = 0
+enum_discrim_align_threshold = 0
+match_arm_blocks = false        # Default true
+match_arm_leading_pipes = "Never"
+force_multiline_blocks = false
+fn_args_layout = "Tall"
+brace_style = "SameLineWhere"
+control_brace_style = "AlwaysSameLine"
+trailing_semicolon = true
+trailing_comma = "Vertical"
+match_block_trailing_comma = false
+blank_lines_upper_bound = 1
+blank_lines_lower_bound = 0
+edition = "2015"
+version = "One"
+inline_attribute_width = 0
+format_generated_files = true
+merge_derives = true
+use_try_shorthand = false
+use_field_init_shorthand = false
+force_explicit_abi = true
+condense_wildcard_suffixes = false
+color = "Auto"
+required_version = "1.4.38"
+unstable_features = false
+disable_all_formatting = false
+skip_children = false
+hide_parse_errors = false
+error_on_line_overflow = false
+error_on_unformatted = false
+report_todo = "Never"
+report_fixme = "Never"
+ignore = []
+emit_mode = "Files"
+make_backup = false