Fix expect script in mkimage-arch

Docker-DCO-1.1-Signed-off-by: Zoltan Tombol <zoltan.tombol@gmail.com> (github: ztombol)

contrib/mkimage-arch.sh

@@ -5,13 +5,13 @@
 set -e
 
 hash pacstrap &>/dev/null || {
-    echo "Could not find pacstrap. Run pacman -S arch-install-scripts"
-    exit 1
+	echo "Could not find pacstrap. Run pacman -S arch-install-scripts"
+	exit 1
 }
 
 hash expect &>/dev/null || {
-    echo "Could not find expect. Run pacman -S expect"
-    exit 1
+	echo "Could not find expect. Run pacman -S expect"
+	exit 1
 }
 
 ROOTFS=$(mktemp -d ${TMPDIR:-/var/tmp}/rootfs-archlinux-XXXXXXXXXX)
@@ -21,18 +21,19 @@ chmod 755 $ROOTFS
 PKGIGNORE=linux,jfsutils,lvm2,cryptsetup,groff,man-db,man-pages,mdadm,pciutils,pcmciautils,reiserfsprogs,s-nail,xfsprogs
 
 expect <<EOF
-  set timeout 60
-  set send_slow {1 1}
-  spawn pacstrap -C ./mkimage-arch-pacman.conf -c -d -G -i $ROOTFS base haveged --ignore $PKGIGNORE
-  expect {
-    "Install anyway?" { send n\r; exp_continue }
-    "(default=all)" { send \r; exp_continue }
-    "Proceed with installation?" { send "\r"; exp_continue }
-    "skip the above package" {send "y\r"; exp_continue }
-    "checking" { exp_continue }
-    "loading" { exp_continue }
-    "installing" { exp_continue }
-  }
+	set send_slow {1 .1}
+	proc send {ignore arg} {
+		sleep .1
+		exp_send -s -- \$arg
+	}
+	set timeout 60
+
+	spawn pacstrap -C ./mkimage-arch-pacman.conf -c -d -G -i $ROOTFS base haveged --ignore $PKGIGNORE
+	expect {
+		-exact "anyway? \[Y/n\] " { send -- "n\r"; exp_continue }
+		-exact "(default=all): " { send -- "\r"; exp_continue }
+		-exact "installation? \[Y/n\]" { send -- "y\r"; exp_continue }
+	}
 EOF
 
 arch-chroot $ROOTFS /bin/sh -c "haveged -w 1024; pacman-key --init; pkill haveged; pacman -Rs --noconfirm haveged; pacman-key --populate archlinux"