reformat-wp-env-log-output: pipe docker output from `docker logs -f <container>` through this to clean up and simplify the output. Useful for WP-Env or VIP Dev-Env. Can filter out lines with `--suppress=string1,string2`.

reformat-wp-env-log-output.js

#!/usr/bin/env node

// Run with `<command> 2>&1 | this-script` to capture and format log output.

const ipLogPattern = /^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3} .*(POST|PUT|GET|HEAD|DELETE|OPTIONS)/
const logContextPattern = /^\[[^\]]+\] \[[a-z_]+:[a-z_]+\] \[pid[^\]]+\] (\[client [0-9][^\]]+\])?/;

const suppressionListFlag = /^--suppress=/;
const suppressionListArg = process.argv.slice( 2 ).find( arg => suppressionListFlag.test( arg ) );

const suppressionList = suppressionListArg
    ? suppressionListArg.replace( suppressionListFlag, '' ).split( ',' )
    : [];

/**
 * Handle a stream of stdout or stderr.
 *
 * @param {import('fs').ReadStream} stream Input stream to process.
 * @return {string} Rendered and maybe-filtered string output.
 */
function processLine( stream ) {
    const line = stream.toString().replace( /\\n/, '\n' );

    if ( /\n/.test( line ) ) {
        // Multi-line output. Process individually.
        return line.split( /\n/ ).map( processLine ).filter( Boolean ).join( '\n' );
    }

    if ( ipLogPattern.test( line ) ) {
        return '';
    }

    for ( const suppressedPattern of suppressionList ) {
        if ( line.includes( suppressedPattern ) ) {
            return '';
        }
    }

    // Strip off non-helpful-for-local-debugging context information
    // so that the output is more scannable.
    return line
        .replace( logContextPattern, '' )
        .replace( /PHP Fatal error:\s+/, '\n\nPHP Fatal error:\n' );
}

/**
 * Monitor, filter, and log the output from a stream.
 *
 * Writes to process.stdout.
 *
 * @async
 * @param {NodeJS.ReadStream} readableStream stdin or similar modern Node read stream.
 */
async function monitor( readableStream ) {
    for await ( const chunk of readableStream ) {
        const line = processLine( chunk );
        if ( line ) {
            process.stdout.write( line );
        }
    }
}

monitor( process.stdin );