File check-for-expired-apt-keys-and-rename-them of Package kimi-utils-ubuntu

#!/bin/bash

# ANSI color codes
if tput setaf 1 &> /dev/null; then
    RED=$(tput setaf 1)     # Red for "expired"
    GREEN=$(tput setaf 2)   # Green for paths
    NC=$(tput sgr0)         # Reset to default color
else
    RED=""
    GREEN=""
    NC=""
fi

# Check for expired APT keys
expired_keys=$(apt-key list | grep expired)

# Check if any expired keys were found
if [[ -z "$expired_keys" ]]; then
    echo "No expired APT keys found."
    exit 0
fi

echo "Expired APT keys found:"

# Check if running as root
is_root=0
print_root_message=0
if [[ "$(id -u)" -ne 0 ]]; then
    print_root_message=1
else
    is_root=1
fi

# Process output
while IFS= read -r line; do
    # Print colored line for trusted.gpg.d paths
    if [[ $line == "/etc/apt/trusted.gpg.d/"* ]]; then
        echo -e "${GREEN}${line}${NC}"
        if (( is_root )); then
            # Rename the expired key by appending "~"
            mv "$line" "${line}~"
            echo "Renamed: $line to ${line}~"
        fi
    elif [[ $line == pub* || $line == uid* ]]; then
        # Color "expired" in pub and uid lines
        echo -e "${line//expired/$RED&$NC}"
    else
        # Print other lines without color
        echo "$line"
    fi
done <<< "$expired_keys"

if (( print_root_message )); then
    echo
    echo "You need to be root to rename the expired keys"
    echo "so that they do not interefere with updates."
fi