Flatten nested Rust projects into monorepo

.gitignore

@@ -0,0 +1,11 @@
+**/target/
+**/*.o
+**/*.d
+**/*.exe
+**/*.log
+**/*.rlib
+**/*.dylib
+**/*.so
+**/.DS_Store
+**/.vscode/
+**/.idea/

Cargo.toml

@@ -0,0 +1,11 @@
+[workspace]
+members = [
+  "branches",
+  "data_types",
+  "functions",
+  "guessing_game",
+  "hello_cargo",
+  "loops",
+  "ownership",
+  "variables",
+]

branches/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "branches"
+version = "0.1.0"

branches/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "branches"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

branches/src/main.rs

@@ -0,0 +1,20 @@
+fn main() {
+    let condition = true;
+    let result = if condition { 5 } else { 6 };
+    // let result = if condition { 5 } else { 'six' };
+    // will throw an error, should be the same type
+
+    println!("The result is {result}");
+
+    let number = 6;
+
+    if number % 4 == 0 {
+        println!("number is divisible by 4");
+    } else if number % 3 == 0 {
+        println!("number is divisible by 3");
+    } else if number % 2 == 0 {
+        println!("number is divisible by 2");
+    } else {
+        println!("number is not divisible by 4, 3, or 2");
+    }
+}

cleanup.sh

@@ -0,0 +1,75 @@
+#!/bin/bash
+
+# This script assumes you're in the monorepo root directory.
+# It will:
+# - Remove nested .git folders
+# - Remove subproject .gitignore files (if present)
+# - Optionally create or update the workspace Cargo.toml
+# - Add the projects to your root Git repo
+
+set -e
+
+echo "🔧 Flattening nested Rust projects into a monorepo..."
+
+# Gather all Rust subprojects
+projects=()
+for dir in */Cargo.toml; do
+  project=$(dirname "$dir")
+  projects+=("$project")
+
+  # Remove nested Git repo
+  if [ -d "$project/.git" ]; then
+    echo "❌ Removing nested Git repo in $project"
+    rm -rf "$project/.git"
+  fi
+
+  # Optionally remove local .gitignore (you can comment this out if needed)
+  if [ -f "$project/.gitignore" ]; then
+    echo "❌ Removing $project/.gitignore"
+    rm -f "$project/.gitignore"
+  fi
+done
+
+# Create .gitignore in root if missing
+if [ ! -f .gitignore ]; then
+  echo "📄 Creating root .gitignore"
+  cat > .gitignore <<EOF
+**/target/
+**/*.o
+**/*.d
+**/*.exe
+**/*.log
+**/*.rlib
+**/*.dylib
+**/*.so
+**/.DS_Store
+**/.vscode/
+**/.idea/
+EOF
+fi
+
+# Create root Cargo.toml workspace
+if [ ! -f Cargo.toml ]; then
+  echo "📄 Creating root Cargo.toml"
+  echo "[workspace]" > Cargo.toml
+  echo "members = [" >> Cargo.toml
+  for project in "${projects[@]}"; do
+    echo "  \"$project\"," >> Cargo.toml
+  done
+  echo "]" >> Cargo.toml
+else
+  echo "⚠️  Cargo.toml already exists at root. You may need to manually add workspace members."
+fi
+
+# Init root Git repo if not already
+if [ ! -d .git ]; then
+  echo "🔁 Initializing new root Git repo"
+  git init
+fi
+
+# Add and commit
+git add .
+git commit -m "Flatten nested Rust projects into monorepo"
+
+echo "✅ Done! Monorepo is clean and ready."
+

data_types/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "data_types"
+version = "0.1.0"

data_types/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "data_types"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

data_types/src/main.rs

@@ -0,0 +1,35 @@
+use std::io;
+
+fn main() {
+    let tup: (u32, f64, i8) = (500, 420.69, 1); // different types
+    let fiveh = tup.0;
+    let fourtw = tup.1;
+    let one = tup.2;
+    let (x, y, z) = tup;
+
+    let nums: [i32; 5] = [1, 2, 3, 4, 5]; // only one data type
+    let a = [3; 5]; // same as
+                    // let a = [3, 3, 3, 3, 3];
+
+    let first = nums[0];
+    let second = nums[1];
+
+
+    let a = [1, 2, 3, 4, 5];
+
+    println!("Type an index");
+
+    let mut index = String::new();
+    io::stdin()
+        .read_line(&mut index)
+        .expect("Failed to read line");
+
+    let index: usize = index
+        .trim()
+        .parse()
+        .expect("Index wasn't a valid numver");
+
+    let element = a[index];
+
+    println!("The element for the index {index} is: {element}");
+}

functions/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "functions"
+version = "0.1.0"

functions/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "functions"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

functions/src/main.rs

@@ -0,0 +1,32 @@
+fn main() {
+    another(10);
+    measure(10, 'm');
+
+    let a = numba();
+    println!("Value of a: {a}");
+
+    let x = {
+        let y = 3;
+        y + 2 // returns a Value
+              // but:
+              // let x = {
+              //     let y = 3;
+              //     y + 2;
+              // };
+              // just a statement, doesnt return any value
+    }; // This is an expression
+
+    println!("Value of x: {x}");
+}
+
+fn another(x: u32) {
+    println!("{x}");
+}
+
+fn measure(height: i32, unit: char) {
+    println!("Measuring... {height}{unit}.");
+}
+
+fn numba() -> i32 {
+    69
+}

guessing_game/Cargo.lock

@@ -0,0 +1,133 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "cfg-if"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9555578bc9e57714c812a1f84e4fc5b4d21fcb063490c624de019f7464c91268"
+
+[[package]]
+name = "getrandom"
+version = "0.2.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "335ff9f135e4384c8150d6f27c6daed433577f86b4750418338c01a1a2528592"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+]
+
+[[package]]
+name = "guessing_game"
+version = "0.1.0"
+dependencies = [
+ "rand",
+]
+
+[[package]]
+name = "libc"
+version = "0.2.174"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1171693293099992e19cddea4e8b849964e9846f4acee11b3948bcc337be8776"
+
+[[package]]
+name = "ppv-lite86"
+version = "0.2.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85eae3c4ed2f50dcfe72643da4befc30deadb458a9b590d720cde2f2b1e97da9"
+dependencies = [
+ "zerocopy",
+]
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.95"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02b3e5e68a3a1a02aad3ec490a98007cbc13c37cbe84a3cd7b8e406d76e7f778"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1885c039570dc00dcb4ff087a89e185fd56bae234ddc7f056a945bf36467248d"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "rand"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
+dependencies = [
+ "libc",
+ "rand_chacha",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
+dependencies = [
+ "ppv-lite86",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
+dependencies = [
+ "getrandom",
+]
+
+[[package]]
+name = "syn"
+version = "2.0.104"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "17b6f705963418cdb9927482fa304bc562ece2fdd4f616084c50b7023b435a40"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"
+
+[[package]]
+name = "wasi"
+version = "0.11.1+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
+
+[[package]]
+name = "zerocopy"
+version = "0.8.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1039dd0d3c310cf05de012d8a39ff557cb0d23087fd44cad61df08fc31907a2f"
+dependencies = [
+ "zerocopy-derive",
+]
+
+[[package]]
+name = "zerocopy-derive"
+version = "0.8.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ecf5b4cc5364572d7f4c329661bcc82724222973f2cab6f050a4e5c22f75181"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]

guessing_game/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "guessing_game"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+rand = "0.8.5"

guessing_game/src/main.rs

@@ -0,0 +1,50 @@
+// use std::cmp::Ordering;
+use std::io;
+
+use rand::Rng;
+
+fn main() {
+    println!("Guess a numba");
+
+    let secret_number = rand::thread_rng().gen_range(1..=100);
+    // println!("The secret numba is: {secret_number}");
+
+    let mut number_of_guesses = 0;
+
+    loop {
+        println!("Do your input");
+
+        let mut guess = String::new();
+
+        io::stdin().read_line(&mut guess).expect("Nothing here");
+
+        let guess: u32 = match guess.trim().parse() {
+            Ok(num) => num,
+            Err(_) => continue,
+        };
+
+        println!("Your guess: {guess}");
+
+        if guess > secret_number {
+            println!("Secret number is smaller!");
+        } else if guess < secret_number {
+            println!("Secret number is bigger!");
+        } else {
+            println!("You got me! Secret number is: {secret_number}");
+            break;
+        }
+
+        number_of_guesses += 1;
+
+        // match guess.cmp(&secret_number) {
+        //     Ordering::Less => println!("Bigger!"),
+        //     Ordering::Greater => println!("Smaller!"),
+        //     Ordering::Equal => {
+        //         println!("Got me :(");
+        //         break;
+        //     }
+        // }
+    }
+
+    println!("\nIt took you {number_of_guesses} times to guess correctly!");
+}

hello_cargo/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "hello_cargo"
+version = "0.1.0"

hello_cargo/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "hello_cargo"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

hello_cargo/src/main.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}

hello_world/main.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello World!");
+}

loops/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "loops"
+version = "0.1.0"

loops/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "loops"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

loops/src/main.rs

@@ -0,0 +1,65 @@
+fn main() {
+
+    let mut counter = 0;
+
+    let result = loop {
+        counter += 1;
+
+        if counter == 10 {
+            break counter * 6;
+        }
+    };
+
+    println!("Result is: {result}");
+
+    let mut count = 0;
+    'inner_loop: loop {
+        println!("Counter: {count}");
+        let mut remaining = 10;
+
+        loop {
+            println!("Remain: {remaining}");
+            if remaining == 9 {
+                break;
+            }
+            if count == 2 {
+                break 'inner_loop;
+            }
+            remaining -= 1;
+        }
+
+        count += 1;
+    }
+
+    println!("End of counter: {count}");
+
+
+    let mut number = 3;
+
+    while number != 0 {
+        println!("{number}!");
+
+        number -= 1;
+    }
+
+    println!("LIFTOFF!!!");
+
+
+    let a = [10, 20, 30, 40, 50];
+    let mut index = 0;
+
+    while index < 5 {
+        println!("the value is: {}", a[index]);
+
+        index += 1;
+    }
+
+    for element in a {
+        println!("the value is: {element}");
+    } // this is better and safer usecase for listing elements of an array
+
+    for number in (1..4).rev() {
+        println!("{number}!");
+    }
+    println!("LIFTOFF!!!");
+}

ownership/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "ownership"
+version = "0.1.0"

ownership/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "ownership"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

ownership/src/main.rs

@@ -0,0 +1,5 @@
+fn main() {
+    let mut s = String::from("Hello");
+    s.push_str(", World!");
+    println!("{s}");
+}

variables/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "variables"
+version = "0.1.0"

variables/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "variables"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

variables/src/main.rs

@@ -0,0 +1,16 @@
+fn main() {
+    let x = 10;
+
+    let x = x * 5;
+
+    {
+        let x = x / 2;
+        println!("x in the inner scope: {x}");
+    }
+
+    println!("x in the outer scope: {x}");
+
+    // let mut space = "   ";
+    // space = space.len();
+    // println!("spaces: {space}");
+}