commit 0d177729abf10de3932dd7b245242ea65533900d
Author: Lucy <git@lucy.giving>
Date:   Tue Sep 30 16:51:03 2025 +0200

    init

diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..3550a30
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
diff --git a/.github/workflows/build_nix.yml b/.github/workflows/build_nix.yml
new file mode 100644
index 0000000..87d2eba
--- /dev/null
+++ b/.github/workflows/build_nix.yml
@@ -0,0 +1,13 @@
+name: "Build legacy Nix package on Ubuntu"
+
+on:
+  push:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: cachix/install-nix-action@v26
+      - name: Building package
+        run: nix build 
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ad67955
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,21 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug
+target
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb
+
+# Generated by cargo mutants
+# Contains mutation testing data
+**/mutants.out*/
+
+# RustRover
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..2b40258
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,1703 @@
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..170157d
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "package_management"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+console = "0.16.1"
+indicatif = "0.18.0"
+md5 = "0.8.0"
+rand = "0.9.2"
+reqwest = { version = "0.12.23", features = ["blocking", "json"] }
+serde = { version = "1.0.228", features = ["derive"] }
+
diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..39bacff
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,7 @@
+(import (
+  fetchTarball {
+    url = "https://github.com/edolstra/flake-compat/archive/99f1c2157fba4bfe6211a321fd0ee43199025dbf.tar.gz";
+    sha256 = "0x2jn3vrawwv9xp15674wjz9pixwjyj3j771izayl962zziivbx2"; }
+) {
+  src =  ./.;
+}).defaultNix
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..1bfcd18
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,137 @@
+{
+  "nodes": {
+    "fenix": {
+      "inputs": {
+        "nixpkgs": [
+          "naersk",
+          "nixpkgs"
+        ],
+        "rust-analyzer-src": "rust-analyzer-src"
+      },
+      "locked": {
+        "lastModified": 1752475459,
+        "narHash": "sha256-z6QEu4ZFuHiqdOPbYss4/Q8B0BFhacR8ts6jO/F/aOU=",
+        "owner": "nix-community",
+        "repo": "fenix",
+        "rev": "bf0d6f70f4c9a9cf8845f992105652173f4b617f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
+    "naersk": {
+      "inputs": {
+        "fenix": "fenix",
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1752689277,
+        "narHash": "sha256-uldUBFkZe/E7qbvxa3mH1ItrWZyT6w1dBKJQF/3ZSsc=",
+        "owner": "nix-community",
+        "repo": "naersk",
+        "rev": "0e72363d0938b0208d6c646d10649164c43f4d64",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "master",
+        "repo": "naersk",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1752077645,
+        "narHash": "sha256-HM791ZQtXV93xtCY+ZxG1REzhQenSQO020cu6rHtAPk=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "be9e214982e20b8310878ac2baa063a961c1bdf6",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1759070547,
+        "narHash": "sha256-JVZl8NaVRYb0+381nl7LvPE+A774/dRpif01FKLrYFQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "647e5c14cbd5067f44ac86b74f014962df460840",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "naersk": "naersk",
+        "nixpkgs": "nixpkgs_2",
+        "utils": "utils"
+      }
+    },
+    "rust-analyzer-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1752428706,
+        "narHash": "sha256-EJcdxw3aXfP8Ex1Nm3s0awyH9egQvB2Gu+QEnJn2Sfg=",
+        "owner": "rust-lang",
+        "repo": "rust-analyzer",
+        "rev": "591e3b7624be97e4443ea7b5542c191311aa141d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rust-lang",
+        "ref": "nightly",
+        "repo": "rust-analyzer",
+        "type": "github"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..9d66940
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,40 @@
+{
+  inputs = {
+    naersk.url = "github:nix-community/naersk/master";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs =
+    {
+      self,
+      nixpkgs,
+      utils,
+      naersk,
+    }:
+    utils.lib.eachDefaultSystem (
+      system:
+      let
+        pkgs = import nixpkgs { inherit system; };
+        naersk-lib = pkgs.callPackage naersk { };
+      in
+      {
+        defaultPackage = naersk-lib.buildPackage ./.;
+        devShell =
+          with pkgs;
+          mkShell {
+            buildInputs = [
+              cargo
+              rustc
+              rustfmt
+              pre-commit
+              rustPackages.clippy
+              pkg-config
+              openssl
+              gemini-cli-bin
+            ];
+            RUST_SRC_PATH = rustPlatform.rustLibSrc;
+          };
+      }
+    );
+}
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..77db547
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,7 @@
+(import (
+  fetchTarball {
+    url = "https://github.com/edolstra/flake-compat/archive/99f1c2157fba4bfe6211a321fd0ee43199025dbf.tar.gz";
+    sha256 = "0x2jn3vrawwv9xp15674wjz9pixwjyj3j771izayl962zziivbx2"; }
+) {
+  src =  ./.;
+}).shellNix
diff --git a/src/downloader.rs b/src/downloader.rs
new file mode 100644
index 0000000..a0f8f09
--- /dev/null
+++ b/src/downloader.rs
@@ -0,0 +1,137 @@
+use std::collections::HashMap;
+use std::fs::{self, File};
+use std::io::{Read, Write};
+use std::path::Path;
+use std::sync::Arc;
+use std::thread;
+
+use console::style;
+use indicatif::{MultiProgress, ProgressBar, ProgressStyle};
+use md5;
+use reqwest::blocking::Client;
+
+/// Prüft Datei gegen erwarteten MD5-Hash
+fn verify_md5(file_path: &Path, expected_hash: &str) -> bool {
+    let mut f = match File::open(file_path) {
+        Ok(f) => f,
+        Err(_) => return false,
+    };
+    let mut buffer = Vec::new();
+    if f.read_to_end(&mut buffer).is_err() {
+        return false;
+    }
+    let digest = md5::compute(&buffer);
+    let hex = format!("{:x}", digest);
+    hex == expected_hash
+}
+
+/// Download + Live-MD5-Prüfung
+pub fn download_files(
+    wget_list: &str,
+    target_dir: &Path,
+    package_mirror: Option<String>,
+    md5_map: Option<&HashMap<String, String>>,
+) -> Result<(), Box<dyn std::error::Error>> {
+    fs::create_dir_all(target_dir)?;
+
+    let urls: Vec<&str> = wget_list.lines().filter(|l| !l.trim().is_empty()).collect();
+    let total = urls.len();
+    let client = Arc::new(Client::new());
+    let mp = Arc::new(MultiProgress::new());
+
+    // Clone md5_map before the loop so we can move it into threads
+    let md5_map = md5_map.cloned();
+
+    let mut handles = vec![];
+
+    for (i, url) in urls.into_iter().enumerate() {
+        let client = Arc::clone(&client);
+        let mp = Arc::clone(&mp);
+        let target_dir = target_dir.to_path_buf();
+        let package_mirror = package_mirror.clone();
+        let url = url.to_string();
+        let md5_map = md5_map.clone();
+
+        let handle = thread::spawn(move || -> Result<(), Box<dyn std::error::Error + Send>> {
+            let filename = url.split('/').last().unwrap_or("file.tar.xz");
+            let filepath = target_dir.join(filename);
+
+            let download_url = if let Some(ref mirror) = package_mirror {
+                if url.contains("ftp.gnu.org") {
+                    url.replacen("ftp.gnu.org", mirror, 1)
+                } else {
+                    url.to_string()
+                }
+            } else {
+                url.to_string()
+            };
+
+            let pb = mp.add(ProgressBar::new(0));
+            pb.set_style(
+                ProgressStyle::with_template(
+                    "{bar:40.cyan/blue} {bytes}/{total_bytes} ({eta}) {msg}",
+                )
+                .unwrap()
+                .progress_chars("=> "),
+            );
+            pb.set_message(format!(
+                "[{}/{}] {}",
+                i + 1,
+                total,
+                style(filename).yellow()
+            ));
+
+            let mut resp = client
+                .get(&download_url)
+                .send()
+                .map_err(|e| Box::new(e) as Box<dyn std::error::Error + Send>)?;
+            let total_size = resp.content_length().unwrap_or(0);
+            pb.set_length(total_size);
+
+            let mut file = File::create(&filepath)
+                .map_err(|e| Box::new(e) as Box<dyn std::error::Error + Send>)?;
+            let mut downloaded: u64 = 0;
+            let mut buffer = [0u8; 8192];
+
+            loop {
+                let bytes_read = resp
+                    .read(&mut buffer)
+                    .map_err(|e| Box::new(e) as Box<dyn std::error::Error + Send>)?;
+                if bytes_read == 0 {
+                    break;
+                }
+                file.write_all(&buffer[..bytes_read])
+                    .map_err(|e| Box::new(e) as Box<dyn std::error::Error + Send>)?;
+                downloaded += bytes_read as u64;
+                pb.set_position(downloaded);
+            }
+
+            // Live-MD5-Prüfung
+            let status = if let Some(ref md5_map) = md5_map {
+                if let Some(expected_hash) = md5_map.get(filename) {
+                    if verify_md5(&filepath, expected_hash) {
+                        style("✅").green()
+                    } else {
+                        style("❌").red()
+                    }
+                } else {
+                    style("⚠️").yellow()
+                }
+            } else {
+                style("⚠️").yellow()
+            };
+
+            pb.finish_with_message(format!("{} {}", status, style(filename).yellow()));
+            Ok(())
+        });
+
+        handles.push(handle);
+    }
+
+    for handle in handles {
+        let result = handle.join().unwrap();
+        result.map_err(|e| e as Box<dyn std::error::Error>)?;
+    }
+
+    Ok(())
+}
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..7f3c525
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,50 @@
+mod downloader;
+mod md5_utils;
+mod mirrors;
+mod wget_list;
+
+use console::style;
+use rand::Rng;
+use std::collections::HashMap;
+use std::env;
+use std::path::PathBuf;
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    // LFS sources Pfad
+    let lfs_sources = match env::var("LFS") {
+        Ok(lfs) => PathBuf::from(lfs).join("sources"),
+        Err(_) => {
+            let mut rng = rand::rng();
+            let random_number: u32 = rng.random_range(1000..=9999);
+            let tmp_path = format!("/tmp/lfs_{}", random_number);
+            println!(
+                "{} Using temporary path {}",
+                style("ℹ️").blue(),
+                style(&tmp_path).yellow()
+            );
+            PathBuf::from(tmp_path).join("sources")
+        }
+    };
+
+    // Mirror für Pakete auswählen
+    let package_mirror = mirrors::choose_package_mirror();
+
+    // Wget-Liste vom Original LFS-Mirror holen
+    let wget_list = wget_list::get_wget_list()?;
+
+    // MD5 Map vorbereiten
+    let mut md5_map: HashMap<String, String> = HashMap::new();
+    let md5_content = md5_utils::get_md5sums()?;
+    for line in md5_content.lines() {
+        let mut parts = line.split_whitespace();
+        if let (Some(hash), Some(filename)) = (parts.next(), parts.next()) {
+            md5_map.insert(filename.to_string(), hash.to_string());
+        }
+    }
+
+    // Pakete herunterladen + Live-MD5 prüfen
+    downloader::download_files(&wget_list, &lfs_sources, package_mirror, Some(&md5_map))?;
+
+    println!("{} All done!", style("🎉").green().bold());
+    Ok(())
+}
diff --git a/src/md5_utils.rs b/src/md5_utils.rs
new file mode 100644
index 0000000..200f23e
--- /dev/null
+++ b/src/md5_utils.rs
@@ -0,0 +1,59 @@
+use console::style;
+use md5;
+use std::fs::File;
+use std::io::{BufRead, BufReader, Read};
+use std::path::Path;
+
+pub fn get_md5sums() -> Result<String, Box<dyn std::error::Error>> {
+    let client = reqwest::blocking::Client::builder()
+        .redirect(reqwest::redirect::Policy::none())
+        .build()?;
+    let res = client
+        .get("https://www.linuxfromscratch.org/~thomas/multilib-m32/md5sums")
+        .send()?
+        .text()?;
+    Ok(res)
+}
+
+pub fn save_md5sums(content: &str, path: &Path) -> Result<(), Box<dyn std::error::Error>> {
+    std::fs::write(path, content)?;
+    Ok(())
+}
+
+pub fn verify_md5sums(
+    md5_file: &Path,
+    sources_dir: &Path,
+) -> Result<(), Box<dyn std::error::Error>> {
+    let file = File::open(md5_file)?;
+    for line in BufReader::new(file).lines() {
+        let line = line?;
+        if line.trim().is_empty() {
+            continue;
+        }
+
+        let mut parts = line.split_whitespace();
+        let expected_hash = parts.next().ok_or("Malformed md5sums line")?;
+        let filename = parts.next().ok_or("Malformed md5sums line")?;
+        let file_path = sources_dir.join(filename);
+
+        let mut f = File::open(&file_path)?;
+        let mut buffer = Vec::new();
+        f.read_to_end(&mut buffer)?;
+
+        let digest = md5::compute(&buffer);
+        let hex = format!("{:x}", digest);
+
+        if hex == expected_hash {
+            println!("{} {} OK", style("✅").green(), filename);
+        } else {
+            println!(
+                "{} {} FAILED (expected {}, got {})",
+                style("❌").red(),
+                filename,
+                expected_hash,
+                hex
+            );
+        }
+    }
+    Ok(())
+}
diff --git a/src/mirrors b/src/mirrors
new file mode 100644
index 0000000..ee199c6
--- /dev/null
+++ b/src/mirrors
@@ -0,0 +1,33 @@
+use console::Style;
+use std::io::{self, Write};
+
+pub fn choose_package_mirror() -> Option<String> {
+    let mirrors = vec![
+        "https://ftp.fau.de",
+        "https://mirror.kernel.org/linux",
+        "https://mirror.example.org/linux",
+    ];
+
+    println!("Optional: choose a mirror for source packages:");
+
+    for (i, mirror) in mirrors.iter().enumerate() {
+        println!("  [{}] {}", i + 1, mirror);
+    }
+
+    print!("Enter number or press Enter for default: ");
+    io::stdout().flush().unwrap();
+
+    let mut input = String::new();
+    io::stdin().read_line(&mut input).unwrap();
+    let input = input.trim();
+
+    if input.is_empty() {
+        None
+    } else {
+        let choice = input.parse::<usize>().unwrap_or(1);
+        let chosen = mirrors.get(choice.saturating_sub(1)).unwrap_or(&mirrors[0]);
+        println!("Using package mirror: {}", Style::new().green().apply_to(chosen));
+        Some(chosen.to_string())
+    }
+}
+
diff --git a/src/mirrors.rs b/src/mirrors.rs
new file mode 100644
index 0000000..4399744
--- /dev/null
+++ b/src/mirrors.rs
@@ -0,0 +1,31 @@
+use console::Style;
+use std::io::{self, Write};
+
+pub fn choose_package_mirror() -> Option<String> {
+    let mirrors = vec!["ftp.fau.de", "mirror.kernel.org", "mirror.example.org"];
+
+    println!("Optional: choose a mirror for GNU source packages (replace ftp.gnu.org):");
+
+    for (i, mirror) in mirrors.iter().enumerate() {
+        println!("  [{}] {}", i + 1, mirror);
+    }
+
+    print!("Enter number or press Enter for default: ");
+    io::stdout().flush().unwrap();
+
+    let mut input = String::new();
+    io::stdin().read_line(&mut input).unwrap();
+    let input = input.trim();
+
+    if input.is_empty() {
+        None
+    } else {
+        let choice = input.parse::<usize>().unwrap_or(1);
+        let chosen = mirrors.get(choice.saturating_sub(1)).unwrap_or(&mirrors[0]);
+        println!(
+            "Using package mirror: {}",
+            Style::new().green().apply_to(chosen)
+        );
+        Some(chosen.to_string())
+    }
+}
diff --git a/src/wget_list.rs b/src/wget_list.rs
new file mode 100644
index 0000000..49075ae
--- /dev/null
+++ b/src/wget_list.rs
@@ -0,0 +1,11 @@
+use reqwest::blocking::Client;
+use reqwest::redirect::Policy;
+
+pub fn get_wget_list() -> Result<String, Box<dyn std::error::Error>> {
+    let client = Client::builder().redirect(Policy::none()).build()?;
+    let res = client
+        .get("https://www.linuxfromscratch.org/~thomas/multilib-m32/wget-list-sysv")
+        .send()?
+        .text()?;
+    Ok(res)
+}