feat(fs): add canonicalize

README.md

@@ -4,7 +4,7 @@ Provides injectable Filesystem and Network resources to make code more testable.
 
 #### std::fs alternatives
 
-- [ ] `std::fs::canonicalize` - `path(path).canonicalize()` - Returns the canonical, absolute form of a path with all intermediate components normalized and symbolic links resolved.
+- [x] `std::fs::canonicalize` - `path(path).canonicalize()` - Returns the canonical, absolute form of a path with all intermediate components normalized and symbolic links resolved.
 - [ ] `std::fs::copy` - `file(path).copy(target)` - Copies the contents of one file to another. This function will also copy the permission bits of the original file to the destination file.
 - [x] `std::fs::create_dir` - `dir(path).create()` - Creates a new, empty directory at the provided path
 - [x] `std::fs::create_dir_all` - `dir(path).create_all()` - Recursively create a directory and all of its parent components if they are missing.

src/fs/path.rs

@@ -201,6 +201,25 @@ impl<'base, 'path, T: PathType> PathReal<'base, 'path, T> {
             Ok(None)
         }
     }
+
+    /// Returns the canonical, absolute form of the path with all intermediate
+    /// components normalized and symbolic links resolved.
+    ///
+    /// ```
+    /// # use kxio::fs::Result;
+    /// # fn main() -> Result<()> {
+    /// let fs = kxio::fs::temp()?;
+    /// let path = fs.base().join("foo");
+    /// #    fs.dir(&path).create()?;
+    /// let dir = fs.path(&path);
+    /// let canonical = dir.canonicalize()?;
+    /// #    Ok(())
+    /// # }
+    /// ```
+    pub fn canonicalize(&self) -> Result<PathBuf> {
+        self.check_error()?;
+        self.as_pathbuf().canonicalize().map_err(Error::Io)
+    }
 }
 impl From<PathReal<'_, '_, PathMarker>> for PathBuf {
     fn from(path: PathReal<PathMarker>) -> Self {