knip/dist/reporters/watch.js

Find unused files, dependencies and exports in your TypeScript and JavaScript projects

import picocolors from 'picocolors';
import prettyMilliseconds from 'pretty-ms';
import { perfObserver } from '../util/Performance.js';
import { relative } from '../util/path.js';
import { getTitle } from './util.js';
export default ({ report, issues, streamer, startTime, size, isDebug }) => {
    const reportMultipleGroups = Object.values(report).filter(Boolean).length > 1;
    let totalIssues = 0;
    const lines = [];
    for (const [reportType, isReportType] of Object.entries(report)) {
        if (reportType === '_files')
            continue;
        if (isReportType) {
            const title = reportMultipleGroups && getTitle(reportType);
            const isSet = issues[reportType] instanceof Set;
            const issuesForType = isSet
                ? Array.from(issues[reportType])
                : Object.values(issues[reportType]).flatMap(Object.values);
            if (issuesForType.length > 0) {
                if (title) {
                    lines.push(`${picocolors.bold(picocolors.yellow(picocolors.underline(title)))} (${issuesForType.length})`);
                }
                if (typeof issuesForType[0] === 'string') {
                    lines.push(...issuesForType.map(filePath => relative(filePath)));
                }
                else {
                    const width = issuesForType.reduce((max, issue) => Math.max(max, issue.symbol.length), 0) + 1;
                    for (const issue of issuesForType) {
                        const filePath = relative(issue.filePath);
                        const pos = issue.line ? `:${issue.line}:${issue.col}` : '';
                        lines.push(`${issue.symbol.padEnd(width)} ${filePath}${pos}`);
                    }
                }
            }
            totalIssues = totalIssues + issuesForType.length;
        }
    }
    const mem = perfObserver.getCurrentMemUsageInMb();
    const duration = perfObserver.getCurrentDurationInMs(startTime);
    const summary = `${size} files in ${prettyMilliseconds(duration)} (${mem}MB)`;
    const messages = totalIssues === 0
        ? ['✂️  Excellent, Knip found no issues.', '', picocolors.gray(summary)]
        : [...lines, '', picocolors.gray(summary)];
    if (isDebug)
        console.log(messages.join('\n'));
    else
        streamer.cast(messages);
};