Taskfile2D2

taskfile2d2 is a command-line tool that converts a Taskfile YAML file into a D2 diagram, a declarative language for visualizing data structures. It allows you to generate visual representations of task interactions.

The resulting diagram can be opened with D2 or by using D2 Playground. I recommend using the ELK layout engine, as it does a much better rendering job than the default Dagre. To do this in D2 CLI, set the "--layout" flag to "elk".

Value Proposition

• Easier onboarding. Task itself already makes onboarding easy, but a large Taskfile can be intimidating for newcomers. Diagramming is a familiar language to everyone.
• Efficient inter-department communication. During meetings, it is easier to keep brainstorming when all parties are looking at the same diagram and not a large YAML file.
• Safer Taskfile refactoring. A Taskfile can outgrow its original design, in which case refactoring is necessary to streamline the workflows. But it gets riskier the more people depend on the Taskfile's workflow, so all Taskfile maintainers must be on the same page (diagram) before making these changes.

Features

• Converts Taskfiles (version 3) into D2 diagrams.
• Visualizes tasks, dependencies, and variable requirements in an organized diagram.
• Supports input via file, standard input, or URL.
• Output diagrams in .d2 format.

Installation

Compiled binaries are available on the Releases page.

Usage

The taskfile2d2 command can be used in several ways:

Passing Input as Argument

• Generate a D2 diagram from a Taskfile and save to the default output:

  taskfile2d2 Taskfile.yml

  This creates a file named Taskfile.yml.d2.

• Specify a custom output file:

  taskfile2d2 Taskfile.yml output.d2

Using Standard Input

• Generate a diagram by piping a Taskfile:

  cat Taskfile.yml | taskfile2d2 > output.d2

• Use input redirection:

  taskfile2d2 < Taskfile.yml > output.d2

• Fetch a Taskfile from a remote source:

  curl -s http://example.com/Taskfile.yml | taskfile2d2 > output.d2

• Print D2 content to the terminal:

  taskfile2d2 < Taskfile.yml

Upcoming Features

Although taskfile2d2 is fully functional, imrovements on the diagram and customizability may come in the future.

Special Thanks

• Task for creating a 21st-century replacement for GNU Make.
• Terrastruct for creating D2, a standard in diagramming as groundbreaking as Markdown for documentation.