Do not error on files starting with utf-8 BOM

Close #501

CHANGELOG.md

@@ -37,6 +37,7 @@ sections up to the index to be used with the `get_section` Tera function
 - Ensure content directory exists before rendering aliases
 - Do not include drafts in pagination
 - Pages filenames starting by a date will now use that date as page date if there isn't one defined in frontmatter
+- Accept markdown files starting with BOM
 
 ## 0.4.2 (2018-09-03)
 

components/utils/src/fs.rs

@@ -39,6 +39,11 @@ pub fn read_file(path: &Path) -> Result<String> {
         .chain_err(|| format!("Failed to open '{:?}'", path.display()))?
         .read_to_string(&mut content)?;
 
+    // Remove utf-8 BOM if any.
+    if content.starts_with("\u{feff}") {
+        content.drain(..3);
+    }
+
     Ok(content)
 }
 

test_site/content/hello.md

@@ -1,2 +1,4 @@
++++
 +++
-+++
+
+This file starts with a UTF-8 BOM and should be loaded