From 2fef4dd29673ef383b695480c9b8212f2e8d4711 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Mon, 24 Jun 2019 21:06:37 +0200
Subject: [PATCH] Downloader: Propagate exceptions from
 decompressionSink->finish()

(cherry picked from commit 15fa70cd1b853f5e62662b99ccb9ef3da6cfadff)
---
 src/libstore/download.cc | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/libstore/download.cc b/src/libstore/download.cc
index 975cfd97d..8e94646d4 100644
--- a/src/libstore/download.cc
+++ b/src/libstore/download.cc
@@ -327,8 +327,13 @@ struct CurlDownloader : public Downloader
             debug("finished %s of '%s'; curl status = %d, HTTP status = %d, body = %d bytes",
                 request.verb(), request.uri, code, httpStatus, result.bodySize);
 
-            if (decompressionSink)
-                decompressionSink->finish();
+            if (decompressionSink) {
+                try {
+                    decompressionSink->finish();
+                } catch (...) {
+                    writeException = std::current_exception();
+                }
+            }
 
             if (code == CURLE_WRITE_ERROR && result.etag == request.expectedETag) {
                 code = CURLE_OK;