web: generating connect demo with asciinema

1 files changed, 189 insertions, 0 deletions

diff --git a/web/demo_connect.sh b/web/demo_connect.sh
new file mode 100755
index 0000000..ee6ffb0
--- /dev/null
+++ b/web/demo_connect.sh
@@ -0,0 +1,189 @@
+#!/bin/sh -ef
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# web/demo_connect.sh: Prepare asciinema(1) demo for connect example
+#
+# Copyright (c) 2023 Red Hat GmbH
+# Author: Stefano Brivio <sbrivio@redhat.com>
+#         Alice Frosi <afrosi@redhat.com>
+
+SEITAN_DIR=$(pwd)
+SESSION=demo
+VIDEO=seitan-connect
+PSEITAN=1
+PEATER=2
+PSERVER=3
+
+setup_common() {
+	tmux new-session -d -s $SESSION
+	tmux send-keys -t $SESSION 'PS1="$ "'
+	tmux send-keys -t $SESSION C-m
+	tmux send-keys -t $SESSION clear
+	tmux send-keys -t $SESSION C-m
+
+	tmux set -t $SESSION window-status-format '#W'
+	tmux set -t $SESSION window-status-current-format '#W'
+	tmux set -t $SESSION status-left ''
+	tmux set -t $SESSION window-status-separator ''
+
+	tmux set -t $SESSION window-status-style 'bg=colour1 fg=colour15 bold'
+	tmux set -t $SESSION status-right ''
+	tmux set -t $SESSION status-style 'bg=colour1 fg=colour15 bold'
+	tmux set -t $SESSION status-right-style 'bg=colour1 fg=colour15 bold'
+	tmux send-keys -t $SESSION "cd ${SEITAN_DIR}" ENTER
+	sleep 1
+}
+
+split_panes() {
+	tmux split-window -h
+	tmux send-keys -t $SESSION 'PS1="$ " && clear' ENTER
+	tmux split-window -v
+	tmux send-keys -t $SESSION 'PS1="$ " && clear' ENTER
+}
+
+SCRIPT_cooker='
+cat demo/connect.hjson
+###
+clear
+./seitan-cooker demo/connect.hjson demo/connect.gluten demo/connect.bpf
+###
+clear
+'
+
+SCRIPT_socat='
+#
+socat UNIX-LISTEN:/tmp/demo.sock -
+#
+'
+
+SCRIPT_eater_connect='
+#
+./seitan-eater -i demo/connect.bpf -- socat OPEN:abcd UNIX-CONNECT:/var/run/pr-helper.sock
+#
+'
+
+SCRIPT_eater_connect_fake='
+#
+./seitan-eater -i demo/connect.bpf -- socat - UNIX-CONNECT:/fake.sock
+#
+'
+
+SCRIPT_eater_connect_error='
+#
+./seitan-eater -i demo/connect.bpf -- socat OPEN:abcd UNIX-CONNECT:/error.sock
+#
+'
+
+SCRIPT_seitan='
+#
+./seitan -p $(pgrep seitan-eater) -i demo/connect.gluten
+'
+
+cmd_write() {
+	__str="${@}"
+	while [ -n "${__str}" ]; do
+		__rem="${__str#?}"
+		__first="${__str%"$__rem"}"
+		if [ "${__first}" = ";" ]; then
+			tmux send-keys -t $SESSION -l '\;'
+		else
+			tmux send-keys -t $SESSION -l "${__first}"
+		fi
+		sleep 0.05 || :
+		__str="${__rem}"
+	done
+	sleep 2
+	tmux send-keys -t $SESSION "C-m"
+}
+
+script() {
+	IFS='
+'
+	for line in $(eval printf '%s\\\n' \$SCRIPT_${1}); do
+		unset IFS
+		case ${line} in
+		"@")	tmux send-keys -t $SESSION C-m	;;
+		"#"*)	sleep ${#line}			;;
+		*)	cmd_write "${line}"		;;
+		esac
+		IFS='
+'
+	done
+	unset IFS
+}
+
+wait_seitan_exit() {
+	while [ "$(pgrep seitan)" != "" ] ; do sleep 1; done
+}
+
+clear_panes() {
+	wait_seitan_exit
+	panes=$(tmux list-panes |awk '{ print $1 }' | sed 's/://')
+	for p in $panes
+	do
+		tmux select-pane -t $p
+	        tmux send-keys -t $SESSION clear
+	        tmux send-keys -t $SESSION C-m
+	done
+	sleep 1
+}
+
+teardown_common() {
+	sleep 5
+	tmux kill-session -t $SESSION
+	sleep 5
+}
+
+printf '\e[8;22;80t'
+
+setup_common
+
+tmux send-keys -t $SESSION -l 'reset'
+tmux send-keys -t $SESSION C-m
+tmux rename-window -t $SESSION 'Seitan demo: generate input files'
+
+asciinema rec --overwrite ${VIDEO}.cast -c 'tmux attach -t $SESSION' &
+sleep 1
+tmux refresh-client
+
+# Input generation
+tmux select-pane -t $PSEITAN
+script cooker
+
+# First part
+split_panes
+
+tmux select-pane -t $PSERVER
+tmux rename-window -t $SESSION 'Seitan demo: connect to another path'
+script socat
+
+tmux select-pane -t $PEATER
+script eater_connect
+tmux select-pane -t $PSEITAN
+script seitan
+sleep 4
+
+# Use only 2 panes
+clear_panes
+tmux kill-pane -t $PSERVER
+
+# Second part
+tmux rename-window -t $SESSION 'Seitan demo: mock connect syscall'
+tmux select-pane -t $PEATER
+script eater_connect_fake
+tmux select-pane -t $PSEITAN
+script seitan
+
+sleep 4
+clear_panes
+
+# Third part
+tmux rename-window -t $SESSION 'Seitan demo: error injection (EPERM)'
+tmux select-pane -t $PEATER
+script eater_connect_error
+tmux select-pane -t $PSEITAN
+script seitan
+
+teardown_common
+gzip -fk9 ${VIDEO}.cast