branchlist was ignoring unicode boundaries on truncating strings (#603)

* branchlist was ignoring unicode boundaries on truncating strings (fixes #602)

Author: Stephan Dilly

Cargo.lock

@@ -40,6 +40,7 @@ serde = "1.0"
 anyhow = "1.0"
 unicode-width = "0.1"
 textwrap = "0.13"
+unicode-truncate = {version="0.2", git="https://github.com/Aetf/unicode-truncate.git"}
 
 [target.'cfg(all(target_family="unix",not(target_os="macos")))'.dependencies]
 which = "4.0"

Cargo.toml

@@ -25,6 +25,7 @@ use tui::{
     widgets::{Block, BorderType, Borders, Clear, Paragraph},
     Frame,
 };
+use unicode_truncate::UnicodeTruncateStr;
 
 use crate::ui::Size;
 use anyhow::Result;
@@ -334,7 +335,7 @@ impl BranchListComponent {
             let mut commit_message =
                 displaybranch.top_commit_message.clone();
             if commit_message.len() > commit_message_length {
-                commit_message.truncate(
+                commit_message.unicode_truncate(
                     commit_message_length
                         .saturating_sub(THREE_DOTS_LENGTH),
                 );
@@ -343,7 +344,7 @@ impl BranchListComponent {
 
             let mut branch_name = displaybranch.name.clone();
             if branch_name.len() > branch_name_length {
-                branch_name.truncate(
+                branch_name.unicode_truncate(
                     branch_name_length
                         .saturating_sub(THREE_DOTS_LENGTH),
                 );