get file binary

Signed-off-by: kernelkind <kernelkind@gmail.com>

crates/notedeck_columns/src/images.rs

@@ -4,6 +4,7 @@ use notedeck::ImageCache;
 use notedeck::Result;
 use poll_promise::Promise;
 use std::path;
+use std::path::PathBuf;
 use tokio::fs;
 
 //pub type ImageCacheKey = String;
@@ -198,6 +199,10 @@ fn fetch_img_from_disk(
     })
 }
 
+pub fn fetch_binary_from_disk(path: PathBuf) -> Result<Vec<u8>> {
+    std::fs::read(path).map_err(|e| notedeck::Error::Generic(e.to_string()))
+}
+
 /// Controls type-specific handling
 #[derive(Debug, Clone, Copy)]
 pub enum ImageType {