From 76274ca7980b2f71fc07b2dc59123e3f66b8fd9d Mon Sep 17 00:00:00 2001
From: Hiltjo Posthuma <hiltjo@codemadness.org>
Date: Thu, 28 Jan 2021 17:05:32 +0100
Subject: README: fix xargs -P example when there are no feeds
Kindof a non-issue but if theres a sfeedrc with no feeds then xargs will still
be executed and give an error. The xargs -r option (GNU extension) fixes this:
From the OpenBSD xargs(1) man page:
"-r Do not run the command if there are no arguments. Normally the
command is executed at least once even if there are no arguments."
Reproducable with the sfeedrc:
feeds() {
true
}
---
README | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/README b/README
index 46b19f1..209aa3b 100644
--- a/README
+++ b/README
@@ -663,7 +663,7 @@ sfeed_update_xargs shellscript:
# make sure path exists.
mkdir -p "${sfeedpath}"
# print feeds for parallel processing with xargs.
- feeds | SFEED_UPDATE_CHILD="1" xargs -0 -P "${maxjobs}" -L 6 "$(readlink -f "$0")"
+ feeds | SFEED_UPDATE_CHILD="1" xargs -r -0 -P "${maxjobs}" -L 6 "$(readlink -f "$0")"
# cleanup temporary files etc.
cleanup
--
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