Offline KB - Added README and a simple download script to download a subset of the smaller, topic-specific exports of wikipedia

scripts/download-wikipedia.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+# Author   : Gaston Gonzalez
+# Date     : 25 December 2024
+# Purpose  : Download offline sections of Wikipedia.
+set -e
+
+HTML=kiwix.html
+URL=http://download.kiwix.org/zim/wikipedia
+
+# Location to store .zim files
+ZIM_DIR=/etc/skel/wikipedia
+
+[ ! -e ${ZIM_DIR} ] && mkdir -v ${ZIM_DIR}
+
+if [ ! -e ${HTML} ]; then
+  et-log "Downloading list of English Wikipedia files"
+  curl -s -L -f -o ${HTML} ${URL}
+
+  if [ $? -ne 0 ]; then
+    et-log "Can't download list of files from ${URL}. Exiting..."
+    exit 1
+  fi
+fi
+
+options=()
+while IFS= read -r zim_files; do
+    zim_file=$(echo $zim_files | sed -n 's|.*href="\([^"]*\.zim\)".*|\1|p')
+
+    options+=("$zim_file" "")
+done < <(grep "[.]zim" kiwix.html | grep "wikipedia_en" kiwix.html | grep nopic | grep -E "computer|history|mathematics|medicine|simple" | sort)
+
+#selected_file=$(dialog --clear --menu "Select a Wikipedia file:" 20 80 10 "${options[@]}" 3>&1 1>&2 2>&3)
+selected_file=$(dialog --clear --menu "Select a Wikipedia file:" 20 80 10 "${options[@]}" 3>&1 1>&2 2>&3)
+exit_status=$?
+
+tput sgr 0 && clear
+
+download_url="${URL}/${selected_file}"
+et-log "Downloading ${download_url}..."
+curl -L -f -O ${download_url} && mv ${selected_file} ${ZIM_DIR}
+
+rm ${HTML}