debian/changelog

+libzstd (1.3.8+dfsg-3) unstable; urgency=medium
+
+  * Add patch fixing zstdgrep exit code when operating on files
+    Closes: #918390, thanks to Jörg-Volker Peetz <jvpeetz@web.de>
+
+ -- Alexandre Mestiashvili <mestia@debian.org>  Sat, 05 Jan 2019 23:42:20 +0100
+
 libzstd (1.3.8+dfsg-2) unstable; urgency=medium
 
   * Add patch skipping tests failing on GNU/Hurd when writing to special files

debian/patches/0016-fix-zstdgrep-exit-code.patch

+Description: Fix zstdgrep exit code when operating on files
+From: Jörg-Volker Peetz <jvpeetz@web.de>
+Forwarded: https://github.com/facebook/zstd/issues/1428
+--- libzstd.orig/programs/zstdgrep
++++ libzstd/programs/zstdgrep
+@@ -113,16 +113,11 @@
+     if [ "${silent}" -lt 1 ] && [ "$#" -gt 1 ]; then
+         grep_args="-H ${grep_args}"
+     fi
+-    CUR_EXIT_CODE=0
+-    EXIT_CODE=1
+     set -f
+     while [ "$#" -gt 0 ]; do
+         # shellcheck disable=SC2086
+         "${zcat}" -fq -- "$1" | "${grep}" --label="${1}" ${grep_args} -- "${pattern}" -
+-        CUR_EXIT_CODE=$?
+-        if [ "${CUR_EXIT_CODE}" -eq 0 ] && [ "${EXIT_CODE}" -ne 1 ]; then
+-            EXIT_CODE=0
+-        fi
++        [ "$?" -ne 0 ] && EXIT_CODE=1
+         shift
+     done
+     set +f

debian/patches/series

@@ -3,3 +3,4 @@
 0013-skip-memory-greedy-tests.patch
 0014-Reproducible-build.patch
 0015-Skip-dev-random-tests-on-hurd.patch
+0016-fix-zstdgrep-exit-code.patch