setup: make reruns idempotent

- Overwrite root and jordanwages authorized_keys each run (deduped)
- Replace ad-hoc fstab edits with a managed NFS block
- Continue using overwrite for fastfetch profile script

README.md

@@ -7,7 +7,7 @@ It uses a two‑stage approach:
    - Prompts for root if needed  
    - Downloads and runs the latest interactive wizard  
 2. **Remote setup wizard** (pulled from Git)  
-   - Menu‑driven (`whiptail`) configuration: updates, sudo, hostname, SSH keys, aliases, neofetch, CIFS mounts, etc.
+   - Menu‑driven (`whiptail`) configuration: updates, sudo, hostname, SSH keys, aliases, fastfetch, CIFS mounts, etc.
 
 ---
 

setup.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 ###############################################################################
 # setup.sh - Interactive Debian VM bootstrap wizard                          #
-# Jordan-friendly edition (whiptail UI, aliases, neofetch, CIFS, etc.)       #
+# Jordan-friendly edition (whiptail UI, aliases, fastfetch, CIFS, etc.)      #
 ###############################################################################
 set -euo pipefail
 
@@ -63,7 +63,7 @@ fi
 # Welcome                                                                    #
 ###############################################################################
 whiptail --title "VM Setup Wizard" --yesno "\
-Welcome!\n\nThis wizard will update the system, configure sudo, hostname,\naliases, neofetch, optional tools, CIFS mounts, and SSH keys.\n\nContinue?" 12 70 || exit 0
+Welcome!\n\nThis wizard will update the system, configure sudo, hostname,\naliases, fastfetch, optional tools, CIFS mounts, and SSH keys.\n\nContinue?" 12 70 || exit 0
 
 ###############################################################################
 # Core packages & sudo                                                       #
@@ -100,44 +100,44 @@ hostnamectl set-hostname "$NEW_HOST"
 msg "Hostname set to $NEW_HOST"
 
 ###############################################################################
-# SSH keys for root                                                           #
+# SSH keys for root (idempotent overwrite per run)                            #
 ###############################################################################
 install -d -m 700 /root/.ssh
 chmod 700 /root/.ssh
-test -n "$DEFAULT_SSH_KEY" && {
-    grep -qxF "$DEFAULT_SSH_KEY" /root/.ssh/authorized_keys 2>/dev/null || \
-        echo "$DEFAULT_SSH_KEY" >> /root/.ssh/authorized_keys
-    chmod 600 /root/.ssh/authorized_keys
-    msg "Default SSH key added for root"
-}
+TMP_KEYS_ROOT=$(mktemp)
+if [[ -n "$DEFAULT_SSH_KEY" ]]; then
+    printf '%s\n' "$DEFAULT_SSH_KEY" >>"$TMP_KEYS_ROOT"
+fi
 if confirm "Add additional SSH public key for root?"; then
     KEY=$(whiptail --title "SSH Key (root)" --inputbox "Paste your public key for root:" 12 70 3>&1 1>&2 2>&3) || die "Cancelled"
-    grep -qxF "$KEY" /root/.ssh/authorized_keys 2>/dev/null || echo "$KEY" >> /root/.ssh/authorized_keys
-    chmod 600 /root/.ssh/authorized_keys
-    msg "Additional SSH key added for root"
+    [[ -n "$KEY" ]] && printf '%s\n' "$KEY" >>"$TMP_KEYS_ROOT"
 fi
+# de-duplicate and overwrite authorized_keys
+awk '!seen[$0]++' "$TMP_KEYS_ROOT" > /root/.ssh/authorized_keys
+chmod 600 /root/.ssh/authorized_keys
+msg "Root authorized_keys updated (overwritten this run)"
+rm -f "$TMP_KEYS_ROOT"
 
 ###############################################################################
-# SSH keys for user jordanwages                                              #
+# SSH keys for user jordanwages (idempotent overwrite per run)               #
 ###############################################################################
 USER_NAME="jordanwages"
 USER_HOME="/home/$USER_NAME"
 install -d -m 700 "$USER_HOME/.ssh"
 chown $USER_NAME:$USER_NAME "$USER_HOME/.ssh"
-test -n "$DEFAULT_SSH_KEY" && {
-    grep -qxF "$DEFAULT_SSH_KEY" "$USER_HOME/.ssh/authorized_keys" 2>/dev/null || \
-        echo "$DEFAULT_SSH_KEY" >> "$USER_HOME/.ssh/authorized_keys"
-    chown $USER_NAME:$USER_NAME "$USER_HOME/.ssh/authorized_keys"
-    chmod 600 "$USER_HOME/.ssh/authorized_keys"
-    msg "Default SSH key added for $USER_NAME"
-}
+TMP_KEYS_USER=$(mktemp)
+if [[ -n "$DEFAULT_SSH_KEY" ]]; then
+    printf '%s\n' "$DEFAULT_SSH_KEY" >>"$TMP_KEYS_USER"
+fi
 if confirm "Add additional SSH public key for $USER_NAME?"; then
     KEY=$(whiptail --title "SSH Key ($USER_NAME)" --inputbox "Paste public key for $USER_NAME:" 12 70 3>&1 1>&2 2>&3) || die "Cancelled"
-    grep -qxF "$KEY" "$USER_HOME/.ssh/authorized_keys" 2>/dev/null || echo "$KEY" >> "$USER_HOME/.ssh/authorized_keys"
-    chown $USER_NAME:$USER_NAME "$USER_HOME/.ssh/authorized_keys"
-    chmod 600 "$USER_HOME/.ssh/authorized_keys"
-    msg "Additional SSH key added for $USER_NAME"
+    [[ -n "$KEY" ]] && printf '%s\n' "$KEY" >>"$TMP_KEYS_USER"
 fi
+awk '!seen[$0]++' "$TMP_KEYS_USER" > "$USER_HOME/.ssh/authorized_keys"
+chown $USER_NAME:$USER_NAME "$USER_HOME/.ssh/authorized_keys"
+chmod 600 "$USER_HOME/.ssh/authorized_keys"
+msg "$USER_NAME authorized_keys updated (overwritten this run)"
+rm -f "$TMP_KEYS_USER"
 
 ###############################################################################
 # Optional utilities                                                         #
@@ -148,16 +148,18 @@ SEL_RAW=$(whiptail --title "Extra Utilities" --checklist \
     "Select additional packages to install:" 15 60 8 \
     "${OPTS[@]}" 3>&1 1>&2 2>&3) || true
 IFS=' ' read -r -a SEL_PKGS <<< "${SEL_RAW//\"/}"
-ensure_pkgs bat ncdu neofetch cifs-utils "${SEL_PKGS[@]}"
+ensure_pkgs bat ncdu fastfetch cifs-utils "${SEL_PKGS[@]}"
 # Aliases
 echo "alias cat='batcat --paging=never'" >/etc/profile.d/10-bat_alias.sh
 echo "alias du='ncdu'" >/etc/profile.d/10-ncdu_alias.sh
 chmod +x /etc/profile.d/10-*alias.sh
-echo 'neofetch' >/etc/profile.d/90-neofetch.sh
-chmod +x /etc/profile.d/90-neofetch.sh
+# Ensure only fastfetch runs on login
+rm -f /etc/profile.d/90-neofetch.sh
+echo 'fastfetch' >/etc/profile.d/90-fastfetch.sh
+chmod +x /etc/profile.d/90-fastfetch.sh
 
 ###############################################################################
-# NFS mounts                                                                 #
+# NFS mounts (managed block, idempotent)                                     #
 ###############################################################################
 NFS_HOSTS=(jimmu keiko keitai)
 OPTS=(); for h in "${NFS_HOSTS[@]}"; do OPTS+=("$h" "" OFF); done
@@ -167,16 +169,32 @@ SEL_HOSTS=$(whiptail --title "NFS Mounts" --checklist \
 
 mkdir -p /media
 for host in "${NFS_HOSTS[@]}"; do
+    [[ $SEL_HOSTS == *\"$host\"* ]] && mkdir -p "/media/$host"
+done
+
+# Clean up legacy lines from prior runs (pre-managed-block versions)
+for host in "${NFS_HOSTS[@]}"; do
+    TEMPLATE="${host}.wageshouse:/Data /media/${host} nfs4 _netdev,x-systemd.automount,noatime 0 0"
+    sed -i "#^${host}\.wageshouse:/Data /media/${host} nfs4 _netdev,x-systemd.automount,noatime 0 0$#d" /etc/fstab || true
+    sed -i "#^# ${host}\.wageshouse:/Data /media/${host} nfs4 _netdev,x-systemd.automount,noatime 0 0$#d" /etc/fstab || true
+done
+
+# Replace the managed block with current selections
+BLOCK_START="# BEGIN setup.sh managed NFS"
+BLOCK_END="# END setup.sh managed NFS"
+sed -i "/^$BLOCK_START$/,/^$BLOCK_END$/d" /etc/fstab || true
+{
+    echo "$BLOCK_START"
+    for host in "${NFS_HOSTS[@]}"; do
         TEMPLATE="${host}.wageshouse:/Data /media/${host} nfs4 _netdev,x-systemd.automount,noatime 0 0"
         if [[ $SEL_HOSTS == *\"$host\"* ]]; then
-        mkdir -p "/media/$host"
-        grep -q "${host}.wageshouse" /etc/fstab && \
-            sed -i "#${host}\.wageshouse#d" /etc/fstab
-        echo "$TEMPLATE" >> /etc/fstab
+            echo "$TEMPLATE"
         else
-        grep -q "${host}.wageshouse" /etc/fstab || echo "# $TEMPLATE" >> /etc/fstab
+            echo "# $TEMPLATE"
         fi
-done
+    done
+    echo "$BLOCK_END"
+} >> /etc/fstab
 
 if ! mount -a 2>>"$LOGFILE"; then
     msg "⚠️  Some NFS mounts failed. Re-run the script to check configuration."
@@ -186,4 +204,4 @@ fi
 # Summary                                                                    #
 ###############################################################################
 msg "\
-Setup complete!\n\n• Hostname:  $NEW_HOST\n• Sudoers:   ${SEL_SUDO//\"/ }\n• Packages:  bat ncdu neofetch ${SEL_PKGS[*]}\n• CIFS:      ${SEL_HOSTS//\"/ }\n\nLog saved to $LOGFILE\n\nEnjoy your new Debian VM!"
+Setup complete!\n\n• Hostname:  $NEW_HOST\n• Sudoers:   ${SEL_SUDO//\"/ }\n• Packages:  bat ncdu fastfetch ${SEL_PKGS[*]}\n• CIFS:      ${SEL_HOSTS//\"/ }\n\nLog saved to $LOGFILE\n\nEnjoy your new Debian VM!"