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ascii-progress-and-spinner

Design ASCII progress bars and spinners for CLI UX (determinate/indeterminate, TTY single-line refresh, non-interactive log fallback) with copy-pastable style specs.

by full-stack-skillsRepository →Source →

When to use this skill

CRITICAL TRIGGER RULE

  • Use this skill ONLY when the user explicitly mentions the exact skill name: ascii-progress-and-spinner.

Trigger phrases include:

  • "ascii-progress-and-spinner"
  • "use ascii-progress-and-spinner"
  • "用 ascii-progress-and-spinner 生成 ASCII 进度条"
  • "使用 ascii-progress-and-spinner 做 spinner / loading"

Boundary

  • Do not integrate a specific UI framework; output styles + refresh rules + fallback protocol + examples.
  • Must cover:
    • determinate progress bars
    • indeterminate spinners
    • non-TTY / redirected-output fallback (log lines, no carriage-return updates)

How to use this skill

Inputs

  • mode (determinate | indeterminate)
  • width (default 40)
  • showPercent (default true)
  • showEta (optional)
  • multiTask (optional)
  • colorMode (none | ansi256, default none)

Outputs (required)

  • progressBarStyles (>= 3)
  • spinnerStyles (>= 2)
  • renderRules (TTY single-line refresh vs logLines)
  • fallbackRules (non-interactive / redirected output)

Recommended render rules

  • TTY (interactive): single-line refresh (overwrite previous line), avoid log spam
  • Non-TTY (logs): print log lines (no overwrite). Each line may include task name + percent.

Script

  • scripts/demo.py: local demo for progress bar + spinner shapes

Examples

  • examples/styles.md

Quality checklist

  1. Fixed width (percent field is fixed-width to avoid jitter)
  2. Log mode is grep-friendly (no overwrite)
  3. ASCII-only defaults are available (avoid ambiguous-width Unicode)

Keywords

English: ascii-progress-and-spinner, progress bar, spinner, loading, tty, non-interactive, log output, ascii 中文: ascii-progress-and-spinner, 进度条, Spinner, Loading, 终端, TTY, 日志降级, ASCII

常见陷阱 (Gotchas)

  1. 版本兼容性:注意框架版本与依赖库的兼容性,不同版本 API 可能有差异
  2. 配置文件格式:配置文件格式错误是最常见的问题,建议使用编辑器的语法检查
  3. 环境变量:确保所有必要的环境变量已正确设置,敏感信息不要硬编码
  4. 依赖冲突:多版本共存时注意依赖冲突,使用 lock 文件锁定版本
  5. 性能陷阱:大数据量场景下注意性能优化,避免 N+1 查询等常见问题

使用流程

Step 1: 环境准备

确保开发环境已安装必要的依赖和工具。

Step 2: 配置初始化

根据项目需求进行基础配置。

Step 3: 核心功能使用

按照示例代码实现核心功能。

Step 4: 测试验证

运行测试确保功能正常。

Step 5: 部署上线

完成开发后进行部署和监控。