From 342e43a981f092d867d52c29809c1d812b553cd1 Mon Sep 17 00:00:00 2001
From: Tom Dong <tomtung@users.noreply.github.com>
Date: Sat, 7 Sep 2019 16:03:15 -0700
Subject: [PATCH] Support increasing the length of the progress bar with a
 delta. (#110)

This is useful when new work arrives when tracking the progress of existing work.
---
 src/progress.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/progress.rs b/src/progress.rs
index 243e4b65..7b6361e2 100644
--- a/src/progress.rs
+++ b/src/progress.rs
@@ -554,6 +554,13 @@ impl ProgressBar {
         })
     }
 
+    /// Increase the length of the progress bar.
+    pub fn inc_length(&self, delta: u64) {
+        self.update_and_draw(|state| {
+            state.len = state.len.saturating_add(delta);
+        })
+    }
+
     /// Sets the current prefix of the progress bar.
     pub fn set_prefix(&self, prefix: &str) {
         let prefix = prefix.to_string();