ibrahimcesar/velociplot

Add pipe support for CLI

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#14 opened on Nov 29, 2025

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good first issuepriority: mediumtype: clitype: feature

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Description

Description

Allow piping data directly to vplot from stdin, enabling integration with other command-line tools.

Example Usage

```bash cat data.csv | vplot plot - -t line -o output.png curl https://example.com/data.json | vplot plot - -t scatter -o plot.png ```

Tasks

  • Support reading from stdin when input is "-"
  • Auto-detect format (CSV vs JSON)
  • Handle streaming data appropriately
  • Update documentation

Acceptance Criteria

  • Piping works reliably
  • Format auto-detection works
  • Good error messages for invalid input

Contributor guide

Research direction
Implement stdin reading when input is ' ', detect CSV vs JSON format, and handle streaming data appropriately.
Tech stack
rust
Domain
cli
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Rust
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65