use indexmap to keep order

Cargo.lock

@@ -84,6 +84,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 name = "cggitem_sets"
 version = "0.1.0"
 dependencies = [
+ "indexmap 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -282,6 +283,14 @@ dependencies = [
  "unicode-normalization 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "indexmap"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "serde 1.0.66 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "iovec"
 version = "0.1.2"
@@ -751,6 +760,7 @@ version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "dtoa 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "indexmap 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "itoa 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.66 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1235,6 +1245,7 @@ dependencies = [
 "checksum hyper 0.11.27 (registry+https://github.com/rust-lang/crates.io-index)" = "34a590ca09d341e94cddf8e5af0bbccde205d5fbc2fa3c09dd67c7f85cea59d7"
 "checksum hyper-tls 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a5aa51f6ae9842239b0fac14af5f22123b8432b4cc774a44ff059fcba0f675ca"
 "checksum idna 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "014b298351066f1512874135335d62a789ffe78a9974f94b43ed5621951eaf7d"
+"checksum indexmap 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "08173ba1e906efb6538785a8844dd496f5d34f0a2d88038e95195172fc667220"
 "checksum iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dbe6e417e7d0975db6512b90796e8ce223145ac4e33c377e4a42882a0e88bb08"
 "checksum itoa 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c069bbec61e1ca5a596166e55dfe4773ff745c3d16b700013bcaff9a6df2c682"
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"

Cargo.toml

@@ -8,9 +8,10 @@ log = "0.4"
 simple_logger = "0.5"
 serde = "1.0"
 serde_derive = "1.0"
-serde_json = "1.0"
+serde_json = { version = "1.0", features = ["preserve_order"] }
 reqwest = "0.8"
 select = { git = "https://github.com/utkarshkukreti/select.rs" }
 regex = "1.0"
 lazy_static = "1.0"
-winreg = "0.5"
+winreg = "0.5"
+indexmap = { version = "1.0", features = ["serde-1"] }

src/main.rs

@@ -11,14 +11,15 @@ extern crate select;
 extern crate simple_logger;
 #[macro_use]
 extern crate lazy_static;
+extern crate indexmap;
 extern crate winreg;
 
+use indexmap::IndexMap;
 use regex::Regex;
 use reqwest::header::{Headers, UserAgent};
 use select::document::Document;
 use select::predicate::{Class, Name};
 use serde_json::Value;
-use std::collections::BTreeMap;
 use std::path::PathBuf;
 use std::{fs, io, thread, time};
 use time::Duration;
@@ -31,7 +32,7 @@ struct Realm {
 
 #[derive(Deserialize)]
 struct Champion {
-    data: BTreeMap<String, ChampInfo>,
+    data: IndexMap<String, ChampInfo>,
 }
 
 #[derive(Deserialize)]
@@ -132,7 +133,7 @@ fn main() {
 
 fn get_champs_with_positions_and_patch(
     client: &reqwest::Client,
-) -> (BTreeMap<String, Vec<String>>, String) {
+) -> (IndexMap<String, Vec<String>>, String) {
     let page = client
         .get("https://champion.gg")
         .send()
@@ -150,7 +151,7 @@ fn get_champs_with_positions_and_patch(
         .unwrap()
         .text();
 
-    let mut champions = BTreeMap::new();
+    let mut champions = IndexMap::new();
     for node in document.find(Class("champ-height")) {
         let id = node.find(Class("home-champion"))
             .next()