pkg-stats/dist/mode/package-stats.js

Beautiful NPM package download stats

import chalk from 'chalk';
import { getPrimaryColor } from '../colors.js';
import { formatPercentage } from '../format.js';
import { fetchNpmLastWeekDownloads } from '../npm-api.js';
import { printChart } from '../output.js';
import { filterStats, groupStats } from '../stats.js';
import { parseVersion, versionCompare } from '../version.js';
export async function printPackageStats(packageName, options) {
    let data;
    try {
        data = await fetchNpmLastWeekDownloads(packageName);
    }
    catch (error) {
        console.error(`Failed to fetch data for package "${packageName}"`, error);
        return;
    }
    if (!Object.keys(data.downloads).length) {
        console.error(`No data found for package "${packageName}".\n`);
        process.exit(1);
    }
    const npmStats = Object.keys(data.downloads)
        .map((versionString) => {
        const version = parseVersion(versionString);
        return {
            ...version,
            downloads: data.downloads[versionString],
        };
    })
        .sort(versionCompare);
    const { type, stats } = groupStats(npmStats, options.group);
    const totalDownloads = Object.values(stats).reduce((sum, version) => sum + version.downloads, 0);
    const statsToDisplay = filterStats(stats, {
        totalDownloads,
        all: options.all,
        top: options.top,
    });
    const downloadToDisplay = statsToDisplay.reduce((sum, version) => sum + version.downloads, 0);
    if (totalDownloads - downloadToDisplay > 0) {
        statsToDisplay.push({
            versionString: 'rest',
            downloads: totalDownloads - downloadToDisplay,
        });
    }
    const primaryColor = chalk.hex(getPrimaryColor(options.color));
    console.log(chalk.bold(`\nNPM weekly downloads for ${primaryColor(packageName)}\n`));
    console.log(`Total: ${primaryColor(totalDownloads.toLocaleString())} last week\n`);
    console.log(options.top ? `Top ${options.top} ${type} versions:\n` : `By ${type} version:\n`);
    const items = statsToDisplay.map((item) => ({
        label: item.versionString,
        value: item.downloads,
        extra: formatPercentage(item.downloads / totalDownloads),
    }));
    printChart(items, {
        colorScheme: options.color,
        indent: 2,
    });
}