From c6af909787ba0256b9f09903d9274acf0cd6aeaf Mon Sep 17 00:00:00 2001
From: Ludovic Pouzenc <ludovic@pouzenc.fr>
Date: Sun, 22 Oct 2017 20:14:16 +0200
Subject: ^C abort in tmux. More polishing.

---
 make-boot-image.sh | 34 ++++++++++++++++++++++++++--------
 1 file changed, 26 insertions(+), 8 deletions(-)

(limited to 'make-boot-image.sh')

diff --git a/make-boot-image.sh b/make-boot-image.sh
index 17baf51..93a2d1d 100755
--- a/make-boot-image.sh
+++ b/make-boot-image.sh
@@ -1,6 +1,6 @@
 #!/bin/bash -xe
 PS4='+ ($LINENO) ' # To ease debugging
-VERSION="1.0"
+VERSION="1.0rc1"
 
 # Config #
 ##########
@@ -387,7 +387,7 @@ machine_info() {
 }
 
 network_conf() {
-	killall udhcpc # Reap background udhcpc in case of rc2 retry
+	pidof udhcpc >/dev/null && killall udhcpc # Reap background udhcpc in case of rc2 retry
 	ip -oneline link | grep LOWER_UP | cut -d: -f2 | grep -v sit | grep -v lo | while read iface
 	do
 		udhcpc -b $iface -t 15
@@ -426,6 +426,7 @@ autorun() {
 		rm /run/autorun_res
 	else	res=1
 	fi
+	echo_color green black "tmux-main-pane exit code : $res"
 	return $res
 }
 
@@ -554,8 +555,22 @@ fi
 EOF
 add_initrd_script "/etc/rc.d/tmux-main-pane" <<"EOF"
 # Drop a in-tmux rescue shell in case of failure, prevents clearing screen with valuable informations
-trap 'res=$?; echo $res > /run/autorun_res ; [ "$res" -eq 0 ] || rescue_shell; tmux kill-server' EXIT
 . /etc/rc.d/funcs		# Load helper functions
+# Helper to trap user interruption and error cases
+# Will exit the entire tmux, leaving last error code availble in a file
+cleanup() {
+	res=$?
+	echo $res > /run/autorun_res
+	if [ $res -ne 0 ]
+	then	rm /run/rescue
+		echo_color green black "/etc/rc.d/tmux-main-pane is exiting. Spawn rescue_shell in tmux now"
+		rescue_shell
+	fi
+	tmux kill-server
+	exit
+}
+trap cleanup INT TERM
+
 case $1 in
 	initrd)	echo -ne "\e]2;initrd-autorun.sh\007" # Term title (tmux)
 		message initrd autorun
@@ -564,23 +579,26 @@ case $1 in
 	nfs)	source nfs-mount
 		if [ $? -ne 0 ]
 		then	echo_color white red "----- NFS server : not mounted ------"
-			echo_color green black "Check for failure above. Exiting rescue shell twice will retry mount"
-			return 1
+			echo_color green black "Check for failure above. Exiting rescue shell will retry everything"
+			false; cleanup
 		fi
 		if ! [ -x /mnt/nfs/nfs-autorun.sh ]
 		then	echo_color white red "----- NFS server : missing script ------"
 			echo_color green black "Check nfs-autorun.sh : should be present, readable and executable"
 			ls -l /mnt/nfs
-			return 2
+			false; cleanup
 		fi
 		echo_color white green "----- NFS server ready ------"
 		message nfs autorun
 		echo -ne "\e]2;nfs-autorun.sh\007" # Term title (tmux)
-		cd /mnt/nfs && source ./nfs-autorun.sh
+		cd /mnt/nfs
+		source ./nfs-autorun.sh
 		;;
 	*)	echo "Usage : $0 (nfs|initrd)"
-		return 1 ;;
+		false; cleanup ;;
 esac
+# Don't add code here, $? from source ...-autorun.sh is used in cleanup
+cleanup
 EOF
 add_initrd_script "/bin/nfs-mount" <<"EOF"
 echo -ne "\e]2;$0\007"	# Term title (tmux)
-- 
cgit v1.2.3