From 9cb472f7779c9653a9e794dd2b39906fda3c183a Mon Sep 17 00:00:00 2001
From: Matthias Kruk <m@m10k.eu>
Date: Wed, 24 Mar 2021 08:56:27 +0900
Subject: [PATCH] include/log: Log messages to the logfile AND stderr

The log module only writes messages to the log file, which is not
enough for scripts that are running in the foreground. This commit
changes the log_write() function to log messages to the logfile as
well as to stderr.
---
 include/log.sh | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/include/log.sh b/include/log.sh
index d4e3760..41d2c1c 100644
--- a/include/log.sh
+++ b/include/log.sh
@@ -64,10 +64,18 @@ log_write() {
 
 	if (( $# > 2 )); then
 		for line in "${@:3}"; do
-			if ! date +"%F %T %z $prefix $line" >> "$__log_file"; then
-				echo "Could not write to $__log_file" 1>&2
+			local msg
+
+			if ! msg=$(date +"%F %T %z $prefix $line"); then
+				echo "Could not get timestamp" 1>&2
 				return 1
 			fi
+
+			if ! echo "$msg" >> "$__log_file"; then
+				echo "Could not write to $__log_file" 1>&2
+			fi
+
+			echo "$msg" 1>&2
 		done
 	else
 		while read -r line; do
-- 
2.47.3