testing differnt configs + scripts

MP2/scripts/view.sh

@@ -0,0 +1,147 @@
+#!/usr/bin/env bash
+
+SESSION="cs425-debug"
+NUM_SERVERS=10
+
+WORKDIR="fa26_cs425_.group-mp_.team-01/MP2"
+FORMATTER="$(cd "$(dirname "$0")" && pwd)/pretty_membership.py"
+
+SSH_OPTS="-o ConnectTimeout=2 \
+-o ServerAliveInterval=1 \
+-o ServerAliveCountMax=1 \
+-o BatchMode=yes"
+
+
+# RESET TMUX
+
+
+tmux kill-session -t "$SESSION" 2>/dev/null || true
+
+tmux new-session -d -s "$SESSION" -n "display"
+
+tmux set-option -t "$SESSION" pane-border-status top
+tmux set-option -t "$SESSION" pane-border-format " #{pane_title} "
+
+
+# DISPLAY COMMAND
+
+
+make_display_cmd() {
+    local vm="$1"
+
+    cat <<EOF
+clear; while true; do
+    printf '\033[H'
+
+    {
+        ssh $SSH_OPTS server$vm \
+        'FILE="\$HOME/$WORKDIR/membership_list.txt";
+         if [ ! -f "\$FILE" ]; then
+             echo "**STOPPED** no membership file";
+         else
+             NOW=\$(date +%s);
+             MTIME=\$(stat -c %Y "\$FILE" 2>/dev/null || echo 0);
+             AGE=\$((NOW - MTIME));
+
+             if [ "\$AGE" -gt 3 ]; then
+                 echo "**STOPPED** \${AGE}s since last update";
+             else
+                 cat "\$FILE";
+             fi;
+         fi' 2>&1 \
+        || echo "**STOPPED** SSH unavailable"
+    } | python3 "$FORMATTER"
+
+    printf '\033[J'
+    sleep 0.75
+done
+EOF
+}
+
+
+# DISPLAY WINDOW
+
+
+tmux select-pane \
+    -t "$SESSION:display.0" \
+    -T "VM1"
+
+tmux send-keys \
+    -t "$SESSION:display.0" \
+    "$(make_display_cmd 1)" \
+    C-m
+
+for i in $(seq 2 "$NUM_SERVERS"); do
+
+    PANE=$(
+        tmux split-window \
+            -t "$SESSION:display" \
+            -P \
+            -F '#{pane_id}'
+    )
+
+    tmux select-layout \
+        -t "$SESSION:display" \
+        tiled
+
+    tmux select-pane \
+        -t "$PANE" \
+        -T "VM$i"
+
+    tmux send-keys \
+        -t "$PANE" \
+        "$(make_display_cmd "$i")" \
+        C-m
+done
+
+tmux select-layout \
+    -t "$SESSION:display" \
+    tiled
+
+
+# COMMAND WINDOW
+
+
+tmux new-window \
+    -t "$SESSION" \
+    -n "cmds"
+
+tmux set-window-option \
+    -t "$SESSION:cmds" \
+    pane-base-index 0
+
+tmux select-pane \
+    -t "$SESSION:cmds.0" \
+    -T "VM1"
+
+for i in $(seq 2 "$NUM_SERVERS"); do
+
+    PANE=$(
+        tmux split-window \
+            -t "$SESSION:cmds" \
+            -P \
+            -F '#{pane_id}'
+    )
+
+    tmux select-layout \
+        -t "$SESSION:cmds" \
+        tiled
+
+    tmux select-pane \
+        -t "$PANE" \
+        -T "VM$i"
+done
+
+tmux select-layout \
+    -t "$SESSION:cmds" \
+    tiled
+
+
+# OPEN DISPLAY
+
+
+tmux select-window \
+    -t "$SESSION:display"
+
+tmux attach-session \
+    -t "$SESSION"