Improve alignment and add link to blog post

Signed-off-by: Christian König <github@yubiuser.dev>

advanced/Scripts/api.sh

@@ -34,6 +34,12 @@ TestAPIAvailability() {
         exit 1
     fi
 
+    # If an error occurred, the variable starts with ;;
+    if [ "${chaos_api_list#;;}" != "${chaos_api_list}" ]; then
+        echo "Communication error. Is FTL running?"
+        exit 1
+    fi
+
     # Iterate over space-separated list of URLs
     while [ -n "${chaos_api_list}" ]; do
         # Get the first URL

advanced/Scripts/update.sh

@@ -97,6 +97,50 @@ GitCheckUpdateAvail() {
     fi
 }
 
+updateWarnDialog() {
+    # Display the warning dialog
+
+    local core_str web_str ftl_str
+
+    if [[ "${core_update}" == true ]]; then
+        core_str="Core: \\Zb\\Z1update available\\Zn"
+    else
+        core_str="Core: \\Zb\\Z4up to date\\Zn"
+    fi
+    if [[ "${web_update}" == true ]]; then
+        web_str="Web:  \\Zb\\Z1update available\\Zn"
+    else
+        web_str="Web:  \\Zb\\Z4up to date\\Zn"
+    fi
+    if [[ "${FTL_update}" == true ]]; then
+        ftl_str="FTL:  \\Zb\\Z1update available\\Zn"
+    else
+        ftl_str="FTL:  \\Zb\\Z4up to date\\Zn"
+    fi
+    # shellcheck disable=SC2154 # Variables "${r}" "${c}" are defined in the main script
+    dialog --no-shadow --clear --keep-tite \
+        --colors \
+        --backtitle "Updating Pi-hole" \
+        --title "Warning" \
+        --no-button "Exit" --yes-button "Continue" \
+        --defaultno \
+        --yesno "\\nThe following Pi-hole components are going to be updated.\\n\\n\\n\
+        $core_str\\n\
+        $web_str\\n\
+        $ftl_str\\n\\n\\n\
+\\Zb\\Z1IMPORTANT:\\Zn Make a (teleporter) backup of your system!\\n\\n\
+Updates can come with significant changes. Please read the changelog at https://pi-hole.net/blog carefully.\\n\\n\\n\
+Please confirm you want to start the update process." \
+        "${r}" "${c}" && result=0 || result="$?"
+
+    case "${result}" in
+    "${DIALOG_CANCEL}" | "${DIALOG_ESC}")
+        printf "  %b User canceled the update process.\\n" "${INFO}"
+        exit 1
+        ;;
+    esac
+}
+
 main() {
     local basicError="\\n  ${COL_LIGHT_RED}Unable to complete update, please contact Pi-hole Support${COL_NC}"
     local core_update
@@ -198,6 +242,11 @@ main() {
         exit 0
     fi
 
+    # if there is any update, show the warning dialog and ask for confirmation
+    if [[ "${core_update}" == true || "${web_update}" == true || "${FTL_update}" == true ]]; then
+        updateWarnDialog
+    fi
+
     if [[ "${core_update}" == true ]]; then
         echo ""
         echo -e "  ${INFO} Pi-hole core files out of date, updating local repo."

advanced/Templates/pihole-FTL-prestart.sh

@@ -25,7 +25,7 @@ chmod 0755 /etc/pihole /var/log/pihole
 
 # allow pihole to access subdirs in /etc/pihole (sets execution bit on dirs)
 # credits https://stackoverflow.com/a/11512211
-find /etc/pihole -type d -exec chmod 0755 {} \;
+find /etc/pihole/ -type d -exec chmod 0755 {} \;
 
 # Touch files to ensure they exist (create if non-existing, preserve if existing)
 [ -f "${FTL_PID_FILE}" ] || install -D -m 644 -o pihole -g pihole /dev/null "${FTL_PID_FILE}"

gravity.sh

@@ -1082,7 +1082,7 @@ migrate_to_listsCache_dir() {
   fi
 
   # Update the list's paths in the corresponding .sha1 files to the new location
-  sed -i "s|${piholeDir}/|${listsCacheDir}/|g" "${listsCacheDir}"/*.sha1
+  sed -i "s|${piholeDir}/|${listsCacheDir}/|g" "${listsCacheDir}"/*.sha1 2>/dev/null
 }
 
 helpFunc() {