Add rssmgr CLI tool for RSS feed management

rssmgr.sh

@@ -0,0 +1,193 @@
+#!/bin/bash
+
+FEED_TITLE="My RSS Feed"
+FEED_LINK="https://example.com"
+FEED_DESC="Example RSS Feed Description"
+FEED_LANG="en-us"
+
+ITEMS_FILE="rss_items.json"
+RSS_FILE="rss_feed.xml"
+
+if ! command -v jq &> /dev/null; then
+  echo "Error: jq is required but not installed. Please install jq first."
+  exit 1
+fi
+
+[ ! -f "$ITEMS_FILE" ] && echo "[]" > "$ITEMS_FILE"
+
+function generate_rss() {
+  local lastBuildDate
+  lastBuildDate=$(date -R)
+
+  {
+    echo '<?xml version="1.0" encoding="UTF-8"?>'
+    echo '<rss version="2.0">'
+    echo '  <channel>'
+    echo "    <title>$FEED_TITLE</title>"
+    echo "    <link>$FEED_LINK</link>"
+    echo "    <description>$FEED_DESC</description>"
+    echo "    <language>$FEED_LANG</language>"
+    echo "    <lastBuildDate>$lastBuildDate</lastBuildDate>"
+
+    jq -c '.[]' "$ITEMS_FILE" | while read -r item; do
+      title=$(echo "$item" | jq -r '.title')
+      description=$(echo "$item" | jq -r '.description')
+      body=$(echo "$item" | jq -r '.body')
+      link=$(echo "$item" | jq -r '.link')
+      pubDate=$(echo "$item" | jq -r '.pubDate')
+      guid=$(echo "$item" | jq -r '.guid')
+
+      echo "    <item>"
+      echo "      <title><![CDATA[$title]]></title>"
+      if [ -n "$link" ]; then
+        echo "      <link>$link</link>"
+      fi
+      echo "      <description><![CDATA[$description<br><br>$body]]></description>"
+      echo "      <pubDate>$pubDate</pubDate>"
+      echo "      <guid isPermaLink=\"false\">$guid</guid>"
+      echo "    </item>"
+    done
+
+    echo '  </channel>'
+    echo '</rss>'
+  } > "$RSS_FILE"
+}
+
+function list_items() {
+  local count
+  count=$(jq length "$ITEMS_FILE")
+  if [ "$count" -eq 0 ]; then
+    echo "No items found."
+    return
+  fi
+  echo "Current RSS items:"
+  jq -r '.[] | "\(.title)"' "$ITEMS_FILE" | nl
+}
+
+function read_input() {
+  local prompt=$1
+  local default=$2
+  local result
+
+  if [ -z "$default" ]; then
+    read -rp "$prompt: " result
+  else
+    read -rp "$prompt [$default]: " result
+    result=${result:-$default}
+  fi
+  echo "$result"
+}
+
+function add_item() {
+  local title description body link pubDate guid
+
+  title=$(read_input "Enter Title")
+  description=$(read_input "Enter Description")
+  body=$(read_input "Enter Body")
+  link=$(read_input "Enter Link (full URL, or leave empty for no link)" "")
+
+
+  if [ -n "$link" ] && [[ ! "$link" =~ ^https?:// ]]; then
+    echo "Warning: Link should start with http:// or https://"
+  fi
+
+  pubDate=$(date -R)
+  guid=$(echo -n "$title$pubDate" | md5sum | cut -d ' ' -f1)
+
+  jq --arg t "$title" --arg d "$description" --arg b "$body" --arg l "$link" --arg p "$pubDate" --arg g "$guid" \
+    '. + [{"title": $t, "description": $d, "body": $b, "link": $l, "pubDate": $p, "guid": $g}]' "$ITEMS_FILE" > tmp.json && mv tmp.json "$ITEMS_FILE"
+
+  generate_rss
+  echo "Item added successfully."
+}
+
+function update_item() {
+  list_items
+  local count index new_title new_desc new_body new_link pubDate guid
+
+  count=$(jq length "$ITEMS_FILE")
+  if [ "$count" -eq 0 ]; then
+    return
+  fi
+
+  read -rp "Enter item number to update: " num
+  if ! [[ "$num" =~ ^[0-9]+$ ]] || [ "$num" -lt 1 ] || [ "$num" -gt "$count" ]; then
+    echo "Invalid item number."
+    return
+  fi
+  index=$((num - 1))
+
+  local old_title old_desc old_body old_link
+  old_title=$(jq -r ".[${index}].title" "$ITEMS_FILE")
+  old_desc=$(jq -r ".[${index}].description" "$ITEMS_FILE")
+  old_body=$(jq -r ".[${index}].body" "$ITEMS_FILE")
+  old_link=$(jq -r ".[${index}].link" "$ITEMS_FILE")
+
+  new_title=$(read_input "New Title" "$old_title")
+  new_desc=$(read_input "New Description" "$old_desc")
+  new_body=$(read_input "New Body" "$old_body")
+  new_link=$(read_input "New Link (full URL, or leave empty for no link)" "$old_link")
+
+  if [ -n "$new_link" ] && [[ ! "$new_link" =~ ^https?:// ]]; then
+    echo "Warning: Link should start with http:// or https://"
+  fi
+
+  pubDate=$(date -R)
+  guid=$(echo -n "$new_title$pubDate" | md5sum | cut -d ' ' -f1)
+
+  jq ".[${index}] |= {title: \"$new_title\", description: \"$new_desc\", body: \"$new_body\", link: \"$new_link\", pubDate: \"$pubDate\", guid: \"$guid\"}" "$ITEMS_FILE" > tmp.json && mv tmp.json "$ITEMS_FILE"
+
+  generate_rss
+  echo "Item updated successfully."
+}
+
+function delete_item() {
+  list_items
+  local count index
+
+  count=$(jq length "$ITEMS_FILE")
+  if [ "$count" -eq 0 ]; then
+    return
+  fi
+
+  read -rp "Enter item number to delete: " num
+  if ! [[ "$num" =~ ^[0-9]+$ ]] || [ "$num" -lt 1 ] || [ "$num" -gt "$count" ]; then
+    echo "Invalid item number."
+    return
+  fi
+  index=$((num - 1))
+
+  jq "del(.[${index}])" "$ITEMS_FILE" > tmp.json && mv tmp.json "$ITEMS_FILE"
+
+  generate_rss
+  echo "Item deleted successfully."
+}
+
+function main_menu() {
+  echo
+  echo "===== RSS Feed Manager ====="
+  echo "1) List items"
+  echo "2) Add item"
+  echo "3) Update item"
+  echo "4) Delete item"
+  echo "5) Generate RSS XML now"
+  echo "6) Exit"
+  read -rp "Choose an option: " opt
+  case $opt in
+    1) list_items ;;
+    2) add_item ;;
+    3) update_item ;;
+    4) delete_item ;;
+    5) generate_rss; echo "RSS XML generated at $RSS_FILE" ;;
+    6) exit 0 ;;
+    *) echo "Invalid option." ;;
+  esac
+}
+
+if [ ! -s "$RSS_FILE" ]; then
+  generate_rss
+fi
+
+while true; do
+  main_menu
+done