From 79f5c296c05bd8754d90272468c985f34b824b4b Mon Sep 17 00:00:00 2001
From: Will Dietz <w@wdtz.org>
Date: Thu, 30 Nov 2017 11:38:12 -0600
Subject: [PATCH] ignore "interrupted" exception in progress callback

Context/discusson:

https://github.com/NixOS/nix/issues/1692#issuecomment-348282301
---
 src/libstore/download.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/libstore/download.cc b/src/libstore/download.cc
index da31029b4..56560203a 100644
--- a/src/libstore/download.cc
+++ b/src/libstore/download.cc
@@ -169,7 +169,11 @@ struct CurlDownloader : public Downloader
 
         int progressCallback(double dltotal, double dlnow)
         {
-            act.progress(dlnow, dltotal);
+            try {
+              act.progress(dlnow, dltotal);
+            } catch (nix::Interrupted &) {
+              assert(_isInterrupted);
+            }
             return _isInterrupted;
         }