First rust program!

.gitignore

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+/target
+/.idea
+/*.yml

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "autocfg"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
+
+[[package]]
+name = "hashbrown"
+version = "0.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ab5ef0d4909ef3724cc8cce6ccc8572c5c817592e9285f5464f8e86f8bd3726e"
+
+[[package]]
+name = "indexmap"
+version = "1.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0f647032dfaa1f8b6dc29bd3edb7bbef4861b8b8007ebb118d6db284fd59f6ee"
+dependencies = [
+ "autocfg",
+ "hashbrown",
+]
+
+[[package]]
+name = "linked-hash-map"
+version = "0.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7fb9b38af92608140b86b693604b9ffcc5824240a484d1ecd4795bacb2fe88f3"
+
+[[package]]
+name = "rust-learning"
+version = "0.1.0"
+dependencies = [
+ "serde",
+ "serde_yaml",
+ "yaml-rust",
+]
+
+[[package]]
+name = "ryu"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73b4b750c782965c211b42f022f59af1fbceabdd026623714f104152f1ec149f"
+
+[[package]]
+name = "serde"
+version = "1.0.137"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "61ea8d54c77f8315140a05f4c7237403bf38b72704d031543aa1d16abbf517d1"
+
+[[package]]
+name = "serde_yaml"
+version = "0.8.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "707d15895415db6628332b737c838b88c598522e4dc70647e59b72312924aebc"
+dependencies = [
+ "indexmap",
+ "ryu",
+ "serde",
+ "yaml-rust",
+]
+
+[[package]]
+name = "yaml-rust"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56c1936c4cc7a1c9ab21a1ebb602eb942ba868cbd44a99cb7cdc5892335e1c85"
+dependencies = [
+ "linked-hash-map",
+]

Cargo.toml

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+[package]
+name = "rust-learning"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+yaml-rust = "0.4"
+serde = "1.0"
+serde_yaml = "0.8"

rust-learning.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="RUST_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+      <excludeFolder url="file://$MODULE_DIR$/target" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

src/main.rs

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+use std::{fs, io};
+use std::borrow::Borrow;
+use std::collections::{BTreeMap, BTreeSet, HashMap};
+use std::fmt::format;
+use std::ops::Index;
+
+use yaml_rust::{Yaml, YamlEmitter, YamlLoader};
+use yaml_rust::yaml::Array;
+
+fn main() {
+    let fileData = fs::read_to_string("indefinitebans.yml").expect("Unable to read this file! Perhaps it's corrupt or the file was not found.");
+    let yaml = &YamlLoader::load_from_str(&fileData).expect("This file couldn't be loaded as a YAML")[0];
+    let parentHash = yaml.as_hash().expect("Unable to load everything into a hash");
+    let mut map: BTreeMap<usize, BTreeMap<String, Vec<String>>> = BTreeMap::new();
+    let mut index = 0;
+    for i in 0..parentHash.keys().len()
+    {
+        let k = parentHash.iter().skip(i).next().unwrap().0;
+        println!("Key: {:?}", k);
+        let mut data: BTreeMap<String, Vec<String>> = BTreeMap::new();
+        let mut names: Vec<String> = Vec::new();
+        if k.as_str().is_some() {
+            names.push(k.as_str().unwrap().to_string());
+            data.insert("users".to_string(), names);
+        } else {
+            let str = String::from(k.to_owned().as_i64().clone().unwrap().to_string());
+            names.push(str);
+            data.insert("users".to_string(), names);
+        }
+        let hash = parentHash[k].as_hash().expect("Couldn't load key as hash");
+        if hash.contains_key(&Yaml::String("uuid".to_string())) {
+            let mut uuids: Vec<String> = Vec::new();
+            uuids.push(hash.get(&Yaml::String("uuid".to_string())).unwrap().to_owned().into_string().unwrap());
+            data.insert("uuids".to_string(), uuids);
+        }
+        if hash.contains_key(&Yaml::String("ips".to_string())) {
+            if hash.get(&Yaml::String("ips".to_string())).unwrap().is_array() {
+                let mut ips: Vec<String> = Vec::new();
+                for x in hash.get(&Yaml::String("ips".to_string())).unwrap().as_vec().unwrap() {
+                    ips.push(x.to_owned().into_string().unwrap());
+                }
+                data.insert("ips".to_string(), ips);
+            }
+        }
+        map.insert(i, data);
+        println!("Inserted {}", i);
+    }
+
+    let s = serde_yaml::to_string(&map).expect("Unable to convert to string");
+    println!("{:?}", s);
+    println!("{:?}", &s[0..4]);
+    fs::write("./indefbans.yml", &s[4..]).expect("Unable to write to file");
+}
+
+fn add_one(num: &mut i32) {
+    *num += 1;
+}