A command-line tool that generates sparklines from numeric data for terminal visualization.
sparkly-cli is a command-line tool that generates sparklines from numeric data, creating small, inline charts perfect for visualizing trends in terminal environments. It solves the problem of quickly embedding data visualizations in shell scripts or command outputs without requiring heavy graphical libraries.
Developers, data analysts, and system administrators who work in terminal environments and need to visualize numeric trends directly in their command-line workflows.
Developers choose sparkly-cli for its simplicity, seamless integration with Unix pipelines, and lightweight approach to adding sparkline visualizations to terminal-based data processing without overhead.
Generate sparklines ▁▂▃▅▂▇
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Seamlessly accepts data from stdin, as shown in the example `echo 0 3 5 8 4 3 | sparkly`, making it easy to chain with other command-line tools.
Follows the Unix philosophy of doing one thing well, with minimal dependencies and a straightforward CLI interface, ideal for quick shell workflows.
Allows setting custom minimum and maximum values with `--min` and `--max` flags to normalize sparkline output, as demonstrated in the usage examples.
Can be installed globally via `npm install --global sparkly-cli`, providing immediate access without complex setup or configuration.
Only supports one style option (`fire`), offering minimal customization for sparkline appearance compared to more full-featured visualization tools.
Requires Node.js and npm for installation, which may not be available or desirable in all terminal environments, especially minimal or restricted systems.
The README does not mention error handling for invalid inputs, such as non-numeric data, which could lead to unexpected behavior in scripts.