Add test for hardlink nodes and ensure it passes

src/node.rs

@@ -228,17 +228,15 @@ impl Node {
         };
         let n_path = if path.starts_with('/') {
             PathBuf::from(&path)
-        } else {
+        } else if let Ok(mut p) = env::current_dir() {
-            if let Ok(mut p) = env::current_dir() {
             p.push(&path);
             p
         } else {
             PathBuf::from(&format!("./{path}"))
-            }
         };
         if let Some(p) = n_path.parent() {
             if !p.exists() {
-                self.mkdir(&p)?;
+                self.mkdir(p)?;
             }
         }
         match self.filetype {
@@ -280,7 +278,7 @@ impl Node {
                 } else {
                     t.to_string()
                 };
-                fs::hard_link(&target, &path)?;
+                fs::hard_link(target, &path)?;
             }
             FileType::SoftLink(ref t) => {
                 symlink(&self.name, t)?;
@@ -310,7 +308,7 @@ impl Node {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use std::{fmt::Write, fs::remove_file};
+    use std::{ffi::CString, fmt::Write, fs::remove_file};
 
     static LI: &[u8] = include_bytes!("../test/li.txt");
 
@@ -348,6 +346,35 @@ mod tests {
         assert_eq!(tgt, "li.txt");
     }
 
+    #[test]
+    fn from_hardlink_path() {
+        let _res = remove_file("test/lorem.txt");
+        fs::hard_link("test/li.txt", "test/lorem.txt").unwrap();
+        let links = Mutex::new(HashMap::new());
+        let _node0 = Node::from_path("test/li.txt", Algorithm::Sha256, &links).unwrap();
+        let node1 = Node::from_path("test/lorem.txt", Algorithm::Sha256, &links).unwrap();
+        match node1.filetype {
+            FileType::HardLink(s) => assert_eq!(s, "test/li.txt"),
+            _ => panic!(),
+        }
+    }
+
+    // TODO: Discover why this test blocks
+    /*#[test]
+    fn from_fifo_path() {
+        let _res = remove_file("test/fifo");
+        let fname = CString::new("test/fifo").unwrap();
+        unsafe {
+            libc::mkfifo(fname.as_ptr(), 0o644);
+        }
+        let links = Mutex::new(HashMap::new());
+        let node = Node::from_path("test/fifo", Algorithm::Skip, &links).unwrap();
+        let FileType::Fifo = node.filetype else {
+            eprintln!("Incorrect filetype: {:?}", node.filetype);
+            panic!();
+        };
+    }*/
+
     #[test]
     fn load_store_file() {
         {

src/special.rs

@@ -41,7 +41,7 @@ impl Special {
         major |= (rdev & 0x00000000000fff00) >> 8;
         major |= (rdev & 0xfffff00000000000) >> 32;
         let mut minor = 0;
-        minor |= (rdev & 0x00000000000000ff) >> 0;
+        minor |= rdev & 0x00000000000000ff;
         minor |= (rdev & 0x00000ffffff00000) >> 12;
         Self {
             major: major as u32,