From: lvgx <l@vgx.fr>
Date: Sat, 6 Jun 2020 15:17:41 +0000 (+0200)
Subject: preview-kitty: fix crash on first file on dash (#636)
X-Git-Tag: v3.3~57
X-Git-Url: http://www.git.stargrave.org/?a=commitdiff_plain;h=58411446b71843b8307f8b20f9507b6327429334;p=nnn.git

preview-kitty: fix crash on first file on dash (#636)

In the dash shell, when `exec < fifo` is interrupted by SIGCHLD, it exits.
So we replace it with `cat fifo |`.

Issue discussed in #614
---

diff --git a/plugins/preview-kitty b/plugins/preview-kitty
index 738411c4..af51cee0 100755
--- a/plugins/preview-kitty
+++ b/plugins/preview-kitty
@@ -63,7 +63,9 @@ if [ "$PREVIEW_MODE" ] ; then
 
     preview_file "$1"
 
-    exec < "$NNN_FIFO"
+    # use cat instead of 'exec <' to avoid issues with dash shell
+    # shellcheck disable=SC2002
+    cat "$NNN_FIFO" |\
     while read -r selection ; do
         preview_file "$selection"
     done