diff -r 37bcd7f5a543 -r ead435aa5294 rust/rhg/src/error.rs
--- a/rust/rhg/src/error.rs	Wed Nov 25 11:08:28 2020 -0500
+++ b/rust/rhg/src/error.rs	Tue Nov 24 15:11:58 2020 +0100
@@ -12,6 +12,9 @@
     RootNotFound(PathBuf),
     /// The current directory cannot be found
     CurrentDirNotFound(std::io::Error),
+    /// Error while reading or writing a file
+    // TODO: add the file name/path?
+    FileError(std::io::Error),
     /// The standard output stream cannot be written to
     StdoutError,
     /// The standard error stream cannot be written to
@@ -27,6 +30,7 @@
         match self {
             CommandErrorKind::RootNotFound(_) => exitcode::ABORT,
             CommandErrorKind::CurrentDirNotFound(_) => exitcode::ABORT,
+            CommandErrorKind::FileError(_) => exitcode::ABORT,
             CommandErrorKind::StdoutError => exitcode::ABORT,
             CommandErrorKind::StderrError => exitcode::ABORT,
             CommandErrorKind::Abort(_) => exitcode::ABORT,