concat_files.sh

#!/bin/bash

# Set default values for directory and pattern
directory="."
pattern="*.ts,*.tsx,*.js,*.jsx"

# Override defaults with arguments if provided
if [ $# -ge 1 ]; then
    directory="$1"
fi

if [ $# -ge 2 ]; then
    pattern="$2"
fi

# Create a temporary directory with a random name
tmp_dir=$(mktemp -d -t concatenate_output.XXXXXX)
output_file="$tmp_dir/output.txt"

# Function to recursively find and concatenate files
concatenate_files() {
    local dir="$1"
    local patterns="$2"

    # Check if the directory is inside a Git repository
    if git -C "$dir" rev-parse --is-inside-work-tree >/dev/null 2>&1; then
        echo "Inside a Git repository. Ignoring gitignored files."
        # Use git ls-files to get the list of files not ignored by git
        local files
        files=$(git -C "$dir" ls-files --cached --others --exclude-standard | grep -E "$(echo "$patterns" | sed 's/,/|/g' | sed 's/\./\\./g' | sed 's/\*/.*/g')")

        for file in $files; do
            echo "Processing $file"
            echo "===== $file =====" >> "$output_file"
            cat "$dir/$file" >> "$output_file"
            echo "" >> "$output_file"
        done
    else
        echo "Not inside a Git repository or no gitignored files found."

        # Convert comma-separated patterns to -o format for find
        local find_patterns=()
        IFS=',' read -ra ADDR <<< "$patterns"
        for i in "${ADDR[@]}"; do
            find_patterns+=(-name "$i" -o)
        done
        # Remove the last -o
        unset 'find_patterns[${#find_patterns[@]}-1]'

        # Find all files matching the glob patterns
        find "$dir" -type f \( "${find_patterns[@]}" \) | while read -r file; do
            echo "Processing $file"
            echo "===== $file =====" >> "$output_file"
            cat "$file" >> "$output_file"
            echo "" >> "$output_file"
        done
    fi
}

# Run the function
concatenate_files "$directory" "$pattern"

# Pipe the output file to pbcopy if it exists
if [[ -f "$output_file" ]]; then
    cat "$output_file" | pbcopy
    echo "All files have been concatenated into $output_file and copied to clipboard"
else
    echo "No files were found or concatenated."
fi