Make error printing show the whole chain of errors

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>

1 files changed, 14 insertions, 0 deletions

diff --git a/src/util.rs b/src/util.rs
index fcb4432..3490e30 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -1,5 +1,6 @@
 use cursive::views::Dialog;
 use cursive::views::TextView;
+use anyhow::Error;
 
 pub fn dialog_for<S: ToString>(e: S) -> Dialog {
     Dialog::around({
@@ -9,3 +10,16 @@ pub fn dialog_for<S: ToString>(e: S) -> Dialog {
         s.pop_layer();
     })
 }
+
+pub fn error_dialog_for(e: Error) -> Dialog {
+    let s = e.chain()
+        .rev()
+        .enumerate()
+        .map(|(i, e)| format!("{}: {}", i, e))
+        .fold(String::new(), |acc, s| {
+            acc + &s + "\n"
+        });
+
+    dialog_for(s)
+}
+