use common functions. runs all scripts as copies from /tmp, so the source scripts can be updated while running.

1 files changed, 61 insertions, 0 deletions

diff --git a/bin/common-functions.sh b/bin/common-functions.sh
new file mode 100755
index 00000000..327cdff7
--- /dev/null
+++ b/bin/common-functions.sh
@@ -0,0 +1,61 @@
+#!/bin/bash
+
+# Copyright 2014 Holger Levsen <holger@layer-acht.org>
+# released under the GPLv=2
+
+common_cleanup(){
+	echo "Cleaned up $TTT, finished running $0"
+	rm -f $TTT
+}
+
+common_init() {
+# check whether this script has been started from /tmp already
+if [ "${0:0:5}" != "/tmp/" ] ; then
+	# mktemp some place for us...
+	TTT=$(mktemp --tmpdir=/tmp)
+	# prepare cleanup
+	trap common_cleanup INT TERM EXIT
+	# cp $0 to /tmp and run it from there
+	cp $0 $TTT
+	chmod +x $TTT
+	# run ourself with the same parameter as we are running
+	# but run a copy from /tmp so that the source can be updated
+	# (Running shell scripts fail weirdly when overwritten when running,
+	#  this hack makes it possible to overwrite long running scripts
+	#  anytime...)
+	echo "Start running \"$0\" as \"$TTT\" with arguments \"$@\""
+	$TTT "$@"
+	exit 0 # auto cleanup on trap
+else
+	# default settings used for the jenkins.debian.net environment
+	if [ -z "$LC_ALL" ]; then
+		export LC_ALL=C
+	fi
+	if [ -z "$MIRROR" ]; then
+		export MIRROR=http://ftp.de.debian.org/debian
+	fi
+	if [ -z "$http_proxy" ]; then
+		export http_proxy="http://localhost:3128"
+	fi
+	if [ -z "$CHROOT_BASE" ]; then
+		export CHROOT_BASE=/chroots
+	fi
+	if [ -z "$SCHROOT_BASE" ]; then
+		export SCHROOT_BASE=/schroots
+	fi
+	# use these settings in the scripts in the (s)chroots too
+	export SCRIPT_HEADER="#!/bin/bash
+	set -e
+	set -x
+	export DEBIAN_FRONTEND=noninteractive
+	export LC_ALL=$LC_ALL
+	export http_proxy=$http_proxy
+	export MIRROR=$MIRROR"
+	# be more verbose
+	export
+	set -e
+	set -x
+
+fi
+}
+