init

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(())
+}