Simple scripts to add and remove copyright notice headers in Java and Kotlin files

add_copyright_notice.sh

#!/bin/bash

# Define the text to add
copyright_text="
/*
* Copyright (c) 2024, YohannesTz, Africa Technologies PLC //change your text here
*
*/"

# Find all .kt and .java files recursively in the given folder
find "$1" -type f \( -name "*.kt" -o -name "*.java" \) | while read -r file; do
    # Check if the file starts with "/*"
    if ! grep -q "^/\*" "$file"; then
        # Add the copyright text to the beginning of the file
        echo "$copyright_text" | cat - "$file" > temp && mv temp "$file"
        echo "Added copyright text to $file"
    else
        echo "Copyright text already exists in $file"
    fi
done

remove_copyright_notice.sh

#!/bin/bash

# Define the text to remove
copyright_text="/*
* Copyright (c) 2024, YohannesTz, Africa Technologies PLC 
*
*/"

# Find all .kt and .java files recursively in the given folder
files=$(find "$1" -type f \( -name "*.kt" -o -name "*.java" \))

# Prompt for confirmation
echo "This will remove the copyright text from all .kt and .java files in the directory $1 and its subdirectories."
read -p "This could affect your classes and could possibly result in a syntax error. Are you sure you want to continue? (y/n): " choice

if [[ $choice == "y" || $choice == "Y" ]]; then
    # Loop through each file
    for file in $files; do
        # Check if the file starts with the copyright text
        if grep -q "^/\*" "$file"; then
            # Remove the copyright text from the beginning of the file
            sed -i '1,/\*\/\$/d' "$file"
            echo "Removed copyright text from $file"
        else
            echo "Copyright text not found in $file"
        fi
    done
    echo "Copyright text removed from all files."
else
    echo "Operation aborted."
fi

usage_example

$ sudo chmod +x ./add_copyright_notice.sh
$ sudo chmod +x ./remove_copyright_notice.sh
$ ./add_copyright_notice.sh ./your/folder
$ ./remove_copyright_notice.sh ./your/folder