Add some checks before reading file.

src/colors.rs

@@ -77,7 +77,7 @@ impl Default for RustColorsImpl {
             active: QColor::try_from("#a9acb0").unwrap(),
             inactive: QColor::try_from("#FFF").unwrap(),
             editor_background: QColor::try_from("#2b2b2b").unwrap(),
-            editor_text: QColor::try_from("#ccced3").unwrap(),
+            editor_text: QColor::try_from("#acaea3").unwrap(),
             editor_highlighted_text: QColor::try_from("#ccced3").unwrap(),
             editor_highlight: QColor::try_from("#ccced3").unwrap(),
             gutter: QColor::try_from("#1e1f22").unwrap(),

src/filesystem.rs

@@ -42,6 +42,8 @@ pub mod qobject {
 use cxx_qt_lib::{QModelIndex, QString};
 use dirs;
 use std::fs;
+use std::fs::FileType;
+use log::warn;
 
 // TODO: Impleent a provider for QFileSystemModel::setIconProvider for icons.
 pub struct FileSystemImpl {
@@ -64,11 +66,20 @@ impl qobject::FileSystem {
         if path.is_empty() {
             return QString::default();
         }
-        // TODO: What if the file is binary or something horrible?
-        QString::from(
-            fs::read_to_string(path.to_string())
-                .expect(format!("Failed to read file {}", path).as_str()),
-        )
+        // TODO: Use syntect for syntax highlighting?
+        //    https://github.com/trishume/syntect/blob/master/examples/syncat.rs
+        if fs::metadata(path.to_string())
+            .expect(format!("Failed to get file metadata {}", path).as_str())
+            .is_file()
+        {
+            QString::from(
+                fs::read_to_string(path.to_string())
+                    .expect(format!("Failed to read file {}", path).as_str()),
+            )
+        } else {
+            warn!("Attempted to open file {} that is not a valid file", path);
+            QString::default()
+        }
     }
 
     // There will never be more than one column.