151 lines
4.1 KiB
Bash
Executable File
151 lines
4.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -e
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# Color codes for output
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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NC='\033[0m' # No Color
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# Function to check if a URL is reachable
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check_url() {
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local url="$1"
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local file="$2"
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local line_num="$3"
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# Skip relative URLs and internal anchors
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if [[ "$url" =~ ^(#|/[^/]|\./) ]]; then
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return 0
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fi
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# Skip mailto and other non-http protocols
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if [[ "$url" =~ ^(mailto:|ftp:|file:|javascript:) ]]; then
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return 0
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fi
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# For URLs without protocol, assume https
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if [[ ! "$url" =~ ^https?:// ]]; then
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url="https://$url"
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fi
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# Use curl to check the URL with a reasonable timeout
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# Follow redirects, but limit to 5 redirects to prevent infinite loops
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local http_code
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http_code=$(curl -s -o /dev/null -w "%{http_code}" \
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--max-time 10 \
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--max-redirs 5 \
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--retry 1 \
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--user-agent "Mozilla/5.0 (compatible; FossCat Link Checker)" \
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"$url" 2>/dev/null || echo "000")
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# Consider 2xx and 3xx status codes as success
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if [[ "$http_code" =~ ^[23][0-9][0-9]$ ]]; then
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return 0
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else
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echo -e "${RED}❌ Dead link in $file:$line_num${NC}"
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echo -e " URL: $url"
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echo -e " Status: $http_code"
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return 1
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fi
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}
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# Function to extract and check links from a markdown file
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check_markdown_links() {
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local file="$1"
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local failed=0
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echo "Checking links in $file..."
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# Use a simpler approach that works with basic grep
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# Extract URLs from markdown links [text](url) and images 
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local urls=$(grep -o '\]([^)]*)' "$file" | sed 's/](\([^)]*\)).*/\1/' | grep -v '^$')
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if [ -n "$urls" ]; then
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while IFS= read -r url; do
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if [ -n "$url" ]; then
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# Get line number where this URL appears
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local line_num=$(grep -n "$url" "$file" | head -1 | cut -d: -f1)
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if ! check_url "$url" "$file" "$line_num"; then
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failed=1
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fi
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fi
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done <<< "$urls"
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fi
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# Also check for reference-style links [ref]: url
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local ref_urls=$(grep -o '^\[.*\]: *[^ ]*' "$file" | sed 's/^\[.*\]: *//' | grep -v '^$')
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if [ -n "$ref_urls" ]; then
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while IFS= read -r url; do
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if [ -n "$url" ]; then
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local line_num=$(grep -n "$url" "$file" | head -1 | cut -d: -f1)
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if ! check_url "$url" "$file" "$line_num"; then
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failed=1
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fi
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fi
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done <<< "$ref_urls"
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fi
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return $failed
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}
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# Main function
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main() {
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local files_to_check=()
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local failed_files=0
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local total_files=0
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# If arguments provided, check those files, otherwise check all markdown files
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if [ $# -gt 0 ]; then
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files_to_check=("$@")
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else
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while IFS= read -r -d '' file; do
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files_to_check+=("$file")
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done < <(find content -name "*.md" -type f -print0)
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fi
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if [ ${#files_to_check[@]} -eq 0 ]; then
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echo -e "${YELLOW}No markdown files to check.${NC}"
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exit 0
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fi
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echo -e "${GREEN}🔗 Checking links in ${#files_to_check[@]} markdown file(s)...${NC}"
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echo
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for file in "${files_to_check[@]}"; do
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if [ -f "$file" ]; then
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total_files=$((total_files + 1))
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if ! check_markdown_links "$file"; then
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failed_files=$((failed_files + 1))
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fi
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else
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echo -e "${YELLOW}⚠️ File not found: $file${NC}"
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fi
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done
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echo
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if [ $failed_files -eq 0 ]; then
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echo -e "${GREEN}✅ All links are working! Checked $total_files file(s).${NC}"
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exit 0
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else
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echo -e "${RED}❌ Found broken links in $failed_files file(s) out of $total_files checked.${NC}"
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exit 1
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fi
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}
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# Check if curl is available
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if ! command -v curl &> /dev/null; then
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echo -e "${RED}❌ curl is required but not installed.${NC}"
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echo "Please install curl to use the link checker."
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exit 1
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fi
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# Check if basic grep and sed are available
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if ! command -v sed &> /dev/null; then
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echo -e "${RED}❌ sed is required but not installed.${NC}"
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exit 1
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fi
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main "$@"
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