tail-typo3-logs.sh

#!/bin/bash

# TYPO3 Log Tail Formatter
# Formats TYPO3 log files with custom column rendering

# Parse arguments
COMPACT=false
LOG_PATH=""
MAX_LINES=""
JQ_FILTER="."
GREP_PATTERN=""
NO_JSON=false

for arg in "$@"; do
    if [ "$arg" = "--compact" ]; then
        COMPACT=true
    elif [ "$arg" = "--no-json" ]; then
        NO_JSON=true
    elif [[ "$arg" =~ ^--max-lines=([0-9]+)$ ]]; then
        MAX_LINES="${BASH_REMATCH[1]}"
    elif [[ "$arg" =~ ^--jq=(.+)$ ]]; then
        JQ_FILTER="${BASH_REMATCH[1]}"
    elif [[ "$arg" =~ ^--grep=(.+)$ ]]; then
        GREP_PATTERN="${BASH_REMATCH[1]}"
    else
        LOG_PATH="$arg"
    fi
done

# Use default path if none provided
LOG_PATH="${LOG_PATH:-var/log/typo3_*.log}"

# Set up tail pipeline
if [ -n "$GREP_PATTERN" ]; then
    TAIL_CMD="tail -f $LOG_PATH | grep --line-buffered '$GREP_PATTERN'"
else
    TAIL_CMD="tail -f $LOG_PATH"
fi

eval "$TAIL_CMD" | while IFS= read -r line; do
    # Parse the log line
    # Format: Fri, 24 Oct 2025 10:53:28 +0200 [DEBUG] request="9be3da5813753" component="...": message - {json}
    
    if [[ $line =~ ^([^[]+)\[([A-Z]+)\]\ request=\"([^\"]+)\"\ component=\"([^\"]+)\":\ ([^-]+)-\ (\{.*\})$ ]]; then
        datetime="${BASH_REMATCH[1]}"
        severity="${BASH_REMATCH[2]}"
        request="${BASH_REMATCH[3]}"
        component="${BASH_REMATCH[4]}"
        message="${BASH_REMATCH[5]}"
        json="${BASH_REMATCH[6]}"
        
        # Format datetime based on compact mode
        if [ "$COMPACT" = true ]; then
            formatted_time=$(date -d "$datetime" "+%H:%M:%S" 2>/dev/null || echo "$datetime")
        else
            formatted_time=$(date -d "$datetime" "+%Y-%m-%d %H:%M:%S" 2>/dev/null || echo "$datetime")
        fi
        
        # Shorten request to 4 characters
        request_short="${request:0:4}"
        
        # Format component based on compact mode
        if [ "$COMPACT" = true ]; then
            # Shorten component: keep uppercase chars and last part complete
            # E.g., Extcode.CartPayone.EventListener.Order.Payment.ProviderRedirect
            # => E.CP.EL.O.P.ProviderRedirect
            IFS='.' read -ra PARTS <<< "$component"
            component_formatted=""
            for i in "${!PARTS[@]}"; do
                if [ $i -eq $((${#PARTS[@]} - 1)) ]; then
                    # Last part: keep complete
                    component_formatted+="${PARTS[$i]}"
                else
                    # Other parts: extract uppercase letters
                    uppercase=$(echo "${PARTS[$i]}" | grep -o '[A-Z]' | tr -d '\n')
                    component_formatted+="${uppercase}."
                fi
            done
        else
            # Use full FQCN
            component_formatted="$component"
        fi
        
        # Print formatted output
        echo -e "\033[90m$formatted_time\033[0m \033[1m[$severity]\033[0m \033[36m$request_short\033[0m \033[33m$component_formatted\033[0m: $message"
        if [ "$NO_JSON" = false ]; then
            if [ -n "$MAX_LINES" ]; then
                echo "$json" | jq --color-output "$JQ_FILTER" 2>/dev/null | head -n "$MAX_LINES" || echo "$json"
            else
                echo "$json" | jq --color-output "$JQ_FILTER" 2>/dev/null || echo "$json"
            fi
        fi
        
    elif [[ $line =~ ^([^[]+)\[([A-Z]+)\]\ request=\"([^\"]+)\"\ component=\"([^\"]+)\":\ (.+)$ ]]; then
        # Line without JSON
        datetime="${BASH_REMATCH[1]}"
        severity="${BASH_REMATCH[2]}"
        request="${BASH_REMATCH[3]}"
        component="${BASH_REMATCH[4]}"
        message="${BASH_REMATCH[5]}"
        
        # Format datetime based on compact mode
        if [ "$COMPACT" = true ]; then
            formatted_time=$(date -d "$datetime" "+%H:%M:%S" 2>/dev/null || echo "$datetime")
        else
            formatted_time=$(date -d "$datetime" "+%Y-%m-%d %H:%M:%S" 2>/dev/null || echo "$datetime")
        fi
        
        # Shorten request to 4 characters
        request_short="${request:0:4}"
        
        # Format component based on compact mode
        if [ "$COMPACT" = true ]; then
            # Shorten component
            IFS='.' read -ra PARTS <<< "$component"
            component_formatted=""
            for i in "${!PARTS[@]}"; do
                if [ $i -eq $((${#PARTS[@]} - 1)) ]; then
                    component_formatted+="${PARTS[$i]}"
                else
                    uppercase=$(echo "${PARTS[$i]}" | grep -o '[A-Z]' | tr -d '\n')
                    component_formatted+="${uppercase}."
                fi
            done
        else
            # Use full FQCN
            component_formatted="$component"
        fi
        
        # Print formatted output
        echo -e "\033[90m$formatted_time\033[0m \033[1m[$severity]\033[0m \033[36m$request_short\033[0m \033[33m$component_formatted\033[0m: $message"
        
    else
        # Print line as-is if it doesn't match the pattern
        echo "$line"
    fi
done