Bash-Utility-Scripts/font-tools/convert-ttf-in-woff2.sh

#!/bin/bash

# Script to convert TTF fonts to WOFF2 format with progress bar
# Usage: ./convert-ttf-in-woff2.sh file1.ttf file2.ttf ...
# Usage: ./convert-ttf-in-woff2.sh *.ttf
# Works as Nemo script with selected files

# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color

# Function to check if woff2_compress is installed
check_woff2() {
    if ! command -v woff2_compress &> /dev/null; then
        echo -e "${RED}Error: woff2_compress is not installed.${NC}"
        echo -e "${YELLOW}Install woff2 with:${NC}"
        echo "  Ubuntu/Debian: sudo apt-get install woff2"
        echo "  CentOS/RHEL: sudo yum install woff2"
        echo "  Arch: sudo pacman -S woff2"
        exit 1
    fi
}

# Main function
main() {
    local file_args=("$@")
    
    # Check woff2_compress
    check_woff2
    
    # Create output directory
    local output_dir="woff2"
    if [ ! -d "$output_dir" ]; then
        mkdir -p "$output_dir"
        echo -e "${GREEN}Created output directory: $output_dir${NC}"
    fi
    
    # Get files to process
    local ttf_files=()
    
    # If we have file arguments, process them
    if [ ${#file_args[@]} -gt 0 ]; then
        # Process file arguments (expand patterns and check files)
        for pattern in "${file_args[@]}"; do
            # Use shell expansion for patterns like *.ttf
            for file in $pattern; do
                if [[ -f "$file" ]] && [[ "$file" =~ \.(ttf|TTF)$ ]]; then
                    ttf_files+=("$file")
                fi
            done
        done
    else
        echo -e "${RED}Error: No files specified.${NC}"
        echo -e "${YELLOW}Usage from terminal: $0 file1.ttf file2.ttf ...${NC}"
        echo -e "${YELLOW}Usage from terminal: $0 *.ttf${NC}"
        echo -e "${YELLOW}Or select files in Nemo and run as script${NC}"
        exit 1
    fi
    
    if [ ${#ttf_files[@]} -eq 0 ]; then
        echo -e "${YELLOW}No TTF files found to process.${NC}"
        exit 0
    fi
    
    local total_files=${#ttf_files[@]}
    
    # Detect if running from Nemo (file manager) or terminal
    local use_gui=false
    
    # Use GUI if we're likely running from Nemo and zenity is available
    if [ -n "$NEMO_SCRIPT_SELECTED_FILE_PATHS" ] && command -v zenity &> /dev/null; then
        use_gui=true
    fi
    
    # Show initial info only for terminal
    if [ "$use_gui" = false ]; then
        echo -e "${GREEN}TTF to WOFF2 conversion started${NC}"
        echo -e "${BLUE}Files to process: ${total_files}${NC}"
        echo -e "${BLUE}Output directory: ${output_dir}${NC}"
        echo ""
    fi
    
    # Process each file with appropriate progress display
    local count=0
    if [ "$use_gui" = true ]; then
        # Use zenity progress bar for GUI
        (
            for file in "${ttf_files[@]}"; do
                if [ -f "$file" ]; then
                    count=$((count + 1))
                    filename=$(basename "$file")
                    output_file="${output_dir}/${filename%.ttf}.woff2"
                    
                    echo "# Converting $filename... ($count/$total_files)"
                    
                    # Convert the file (woff2_compress creates file in same directory)
                    woff2_compress "$file" 2>/dev/null
                    
                    # Move the created file to output directory
                    local created_file="${file%.ttf}.woff2"
                    if [ -f "$created_file" ]; then
                        mv "$created_file" "$output_file"
                    fi
                    
                    echo "$((count * 100 / total_files))"
                fi
            done
        ) | zenity --progress --title="TTF to WOFF2 Conversion" --text="Initializing..." --percentage=0 --auto-close
        
        # Check if user cancelled
        if [ $? -ne 0 ]; then
            zenity --error --text="Conversion was cancelled."
            exit 1
        fi
    else
        # Use terminal progress bar
        for file in "${ttf_files[@]}"; do
            if [ -f "$file" ]; then
                count=$((count + 1))
                filename=$(basename "$file")
                output_file="${output_dir}/${filename%.ttf}.woff2"
                
                # Show terminal progress
                local percentage=$((count * 100 / total_files))
                printf "\r${BLUE}[%3d%%] Processing $filename ($count/$total_files)${NC}" "$percentage"
                
                # Convert the file (woff2_compress creates file in same directory)
                woff2_compress "$file" 2>/dev/null
                
                # Move the created file to output directory
                local created_file="${file%.ttf}.woff2"
                if [ -f "$created_file" ]; then
                    mv "$created_file" "$output_file"
                fi
            fi
        done
        echo "" # New line after progress
    fi
    
    # Show final report
    if [ "$use_gui" = true ]; then
        # Show report with zenity
        local report_message="✓ Conversion completed!\n\n"
        report_message+="Files converted: ${count}\n"
        report_message+="Output directory: ${output_dir}/"
        
        zenity --info --title="TTF to WOFF2 Conversion Complete" --text="$report_message"
    else
        # Show report in terminal
        echo ""
        echo -e "${GREEN}✓ Conversion completed!${NC}"
        echo ""
        echo -e "${BLUE}Results:${NC}"
        echo -e "  Files converted: ${count}"
        echo -e "  Output directory: ${output_dir}/"
    fi
}

# Show help if requested
if [[ "$1" == "-h" || "$1" == "--help" ]]; then
    echo -e "${GREEN}Script to convert TTF fonts to WOFF2 format${NC}"
    echo ""
    echo -e "${YELLOW}Usage:${NC}"
    echo "  $0 file1.ttf file2.ttf ..."
    echo "  $0 *.ttf"
    echo "  Or select files in Nemo file manager and run as script"
    echo ""
    echo -e "${YELLOW}Parameters:${NC}"
    echo "  files      TTF files to convert"
    echo ""
    echo -e "${YELLOW}Examples:${NC}"
    echo "  $0 font1.ttf font2.ttf      # Convert specific files"
    echo "  $0 *.ttf                    # Convert all TTF files"
    echo "  $0 fonts/*.ttf              # Convert TTF files in fonts folder"
    echo ""
    echo -e "${BLUE}Note: Converted fonts will be saved in the 'woff2' subdirectory${NC}"
    echo -e "${BLUE}      When used as Nemo script, progress is shown graphically${NC}"
    echo -e "${BLUE}      Requires woff2 package for font conversion${NC}"
    exit 0
fi

# Execute main
main "$@"