Cli progress bar setup

Skill a5c-ai/babysitter/library/specializations/cli-mcp-development/skills/cli-progress-bar-setup

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Install

npx -y skills add a5c-ai/babysitter --skill cli-progress-bar-setup

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What its author says it does

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Configure cli-progress with custom formatters, multi-bar support, and ETA calculations for CLI progress indication.

SKILL.md

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CLI Progress Bar Setup

Configure cli-progress for advanced progress indication.

Capabilities

Configure single and multi-bar progress
Create custom bar formatters
Set up ETA calculations
Implement payload data display
Create progress bar presets
Generate progress utilities

Usage

Invoke this skill when you need to:

Show download/upload progress
Display multi-task progress
Create custom progress formats
Implement ETA calculations

Inputs

Parameter	Type	Required	Description
language	string	Yes	Target language
format	string	No	Bar format template
presets	array	No	Progress bar presets

Generated Patterns

TypeScript Progress Utilities

import cliProgress, { SingleBar, MultiBar, Presets } from 'cli-progress';
import chalk from 'chalk';

// Custom format with colors
const defaultFormat = chalk.cyan('{bar}') +
  ' {percentage}% | ETA: {eta}s | {value}/{total} | {filename}';

// Create single progress bar
export function createProgressBar(options?: {
  format?: string;
  barSize?: number;
}): SingleBar {
  return new SingleBar({
    format: options?.format || defaultFormat,
    barCompleteChar: '\u2588',
    barIncompleteChar: '\u2591',
    barsize: options?.barSize || 40,
    hideCursor: true,
    clearOnComplete: false,
    stopOnComplete: true,
  }, Presets.shades_classic);
}

// Multi-bar for parallel tasks
export function createMultiBar(): MultiBar {
  return new MultiBar({
    format: '{name} |' + chalk.cyan('{bar}') + '| {percentage}% | {value}/{total}',
    barCompleteChar: '\u2588',
    barIncompleteChar: '\u2591',
    hideCursor: true,
    clearOnComplete: false,
    stopOnComplete: false,
  }, Presets.shades_grey);
}

// Download progress with speed
export function createDownloadBar(): SingleBar {
  return new SingleBar({
    format: 'Downloading |' + chalk.cyan('{bar}') +
      '| {percentage}% | {speed} MB/s | {value}/{total} MB',
    barCompleteChar: '\u2588',
    barIncompleteChar: '\u2591',
    barsize: 30,
    formatValue: (value, options, type) => {
      if (type === 'value' || type === 'total') {
        return (value / 1024 / 1024).toFixed(2);
      }
      return String(value);
    },
  }, Presets.shades_classic);
}

// Wrapper for async operations
export async function withProgress<T>(
  total: number,
  fn: (update: (current: number, payload?: Record<string, any>) => void) => Promise<T>,
  options?: { format?: string }
): Promise<T> {
  const bar = createProgressBar(options);
  bar.start(total, 0);

  try {
    const result = await fn((current, payload) => {
      bar.update(current, payload);
    });
    bar.stop();
    return result;
  } catch (error) {
    bar.stop();
    throw error;
  }
}

// Batch processing with progress
export async function processBatch<T, R>(
  items: T[],
  processor: (item: T, index: number) => Promise<R>,
  options?: { label?: string }
): Promise<R[]> {
  const bar = createProgressBar({
    format: `${options?.label || 'Processing'} |{bar}| {percentage}% | {value}/{total}`,
  });

  bar.start(items.length, 0);
  const results: R[] = [];

  for (let i = 0; i < items.length; i++) {
    results.push(await processor(items[i], i));
    bar.update(i + 1);
  }

  bar.stop();
  return results;
}

// Parallel processing with multi-bar
export async function processParallel<T, R>(
  tasks: Array<{
    name: string;
    items: T[];
    processor: (item: T) => Promise<R>;
  }>
): Promise<Map<string, R[]>> {
  const multiBar = createMultiBar();
  const bars = new Map<string, SingleBar>();
  const results = new Map<string, R[]>();

  // Create bars for each task
  for (const task of tasks) {
    const bar = multiBar.create(task.items.length, 0, { name: task.name.padEnd(15) });
    bars.set(task.name, bar);
    results.set(task.name, []);
  }

  // Process all tasks in parallel
  await Promise.all(tasks.map(async (task) => {
    const bar = bars.get(task.name)!;
    const taskResults = results.get(task.name)!;

    for (let i = 0; i < task.items.length; i++) {
      taskResults.push(await task.processor(task.items[i]));
      bar.update(i + 1);
    }
  }));

  multiBar.stop();
  return results;
}

Dependencies

{
  "dependencies": {
    "cli-progress": "^3.12.0",
    "chalk": "^5.0.0"
  },
  "devDependencies": {
    "@types/cli-progress": "^3.11.0"
  }
}

Target Processes

progress-status-indicators
cli-output-formatting
cli-application-bootstrap