From: Reto Buerki <reet@codelabs.ch>
Date: Thu, 6 Dec 2012 18:17:30 +0000 (+0100)
Subject: Provide do_on_exit() function
X-Git-Tag: 5.0.2rc1~1^2~79
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9a045eef8e003b46fb93369a7888d65b01730a1d;p=thirdparty%2Fstrongswan.git

Provide do_on_exit() function

This function allows to register an exit action which executes when the
calling script terminates.
---

diff --git a/testing/scripts/function.sh b/testing/scripts/function.sh
index 3e0560a46c..d9f2054efc 100755
--- a/testing/scripts/function.sh
+++ b/testing/scripts/function.sh
@@ -86,6 +86,34 @@ log_status()
 	echo
 }
 
+# the following two functions are stolen from [1]
+# [1] - http://www.linuxjournal.com/content/use-bash-trap-statement-cleanup-temporary-files
+
+declare -a on_exit_items
+
+# perform registered actions on exit
+on_exit()
+{
+	for i in "${on_exit_items[@]}"
+	do
+		eval $i >>$LOGFILE 2>&1
+	done
+	on_exit_items=""
+	trap - EXIT
+}
+
+# register a command to execute when the calling script terminates. The
+# registered commands are called in FIFO order.
+# $* - command to register
+do_on_exit()
+{
+	local n=${#on_exit_items[*]}
+	on_exit_items[$n]="$*"
+	if [ $n -eq 0 ]; then
+		trap on_exit EXIT
+	fi
+}
+
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 # search and replace strings throughout a
 # whole directory