Add download.sh

download.sh

@@ -0,0 +1,95 @@
+#!/usr/bin/env bash
+#
+# download - Simple downloader that always constructs the filename from the URL
+# Usage: ./download.sh URL
+
+set -e
+
+# Function to detect MIME type and return appropriate extension
+get_file_extension() {
+  local file_path="$1"
+  local mime_type=$(file --mime-type -b "$file_path")
+  local extension=""
+  
+  case "$mime_type" in
+    text/html)                extension=".html" ;;
+    application/json)         extension=".json" ;;
+    text/plain)               extension=".txt" ;;
+    application/javascript)   extension=".js" ;;
+    application/xml|text/xml) extension=".xml" ;;
+    application/pdf)          extension=".pdf" ;;
+    image/jpeg)               extension=".jpg" ;;
+    image/png)                extension=".png" ;;
+    image/gif)                extension=".gif" ;;
+    image/svg+xml)            extension=".svg" ;;
+    application/zip)          extension=".zip" ;;
+    application/gzip)         extension=".gz" ;;
+    application/x-tar)        extension=".tar" ;;
+    application/x-bzip2)      extension=".bz2" ;;
+    *)                        extension=".html" ;; # Default to HTML if unknown
+  esac
+  
+  echo "$extension"
+}
+
+# Check if URL provided
+if [ $# -ne 1 ]; then
+  echo "Usage: $0 URL"
+  exit 1
+fi
+
+URL="$1"
+
+# Validate URL format (must start with http:// or https://)
+if [[ ! "$URL" =~ ^https?:// ]]; then
+  echo "Error: URL must start with http:// or https://"
+  exit 1
+fi
+
+# Create temporary file
+TEMP_FILE=$(mktemp)
+
+# Download the file
+echo "Downloading $URL"
+curl -s -L "$URL" -o "$TEMP_FILE" || {
+  echo "Error: Failed to download $URL"
+  rm -f "$TEMP_FILE"
+  exit 1
+}
+
+# Get file extension based on MIME type
+EXTENSION=$(get_file_extension "$TEMP_FILE")
+
+# Always construct filename from the URL, replacing slashes with hyphens
+FILENAME=$(echo "$URL" | sed -E 's|^https?://||' | sed -E 's|^www\.||' | sed 's|/$||' | sed 's|/|-|g')
+
+# Add extension to the filename
+FILENAME="${FILENAME}${EXTENSION}"
+
+# Make sure we don't end up with just an extension
+if [ "$FILENAME" = "${EXTENSION}" ]; then
+  FILENAME="index${EXTENSION}"
+fi
+
+# Get the current directory to ensure we save to this location
+CURRENT_DIR="$(pwd)"
+FULL_PATH="${CURRENT_DIR}/${FILENAME}"
+
+# Pretty-print JSON if applicable
+if [ "$EXTENSION" = ".json" ]; then
+  # Create another temporary file for the pretty-printed version
+  PRETTY_TEMP=$(mktemp)
+  # Try to pretty-print with jq, but don't fail if jq fails
+  if command -v jq &> /dev/null; then
+    if jq . "$TEMP_FILE" > "$PRETTY_TEMP" 2>/dev/null; then
+      mv "$PRETTY_TEMP" "$TEMP_FILE"
+    else
+      rm -f "$PRETTY_TEMP"
+    fi
+  else
+    rm -f "$PRETTY_TEMP"
+  fi
+fi
+
+# Move to final destination
+mv "$TEMP_FILE" "$FULL_PATH"