hjson_to_gantt is a simple script with a very simple aim: produce a Gantt chart based on (H)JSON input. It is built upon the excellent python-gantt library.

See the accompanying blog post for a little more motivation.

pip install gantt fuzzyfinder hjson

{
  projects: [
    {
      name: Project Alpha
      color: green
    }
  ]

  tasks: [
    {
      name: Design widget
      begin: 2016-10-14
      duration: 7,
      people: Farquaad
      project: alpha
    }
    {
      name: Set up widget production line
      begin: 2016-10-19
      duration: 6
      people: Zack
      project: alpha
    }
    {
      name: Manufacture widgets
      duration: 7
      people: Carrie
      deps: ["design widget", "widget prod line"]
      project: alpha
    }
  ]

  milestones: [
    {
      name: Widgets start shipping
      start: 2016-10-30
      deps: ["mftr widgets"]
      project: alpha
    }
  ]
}

You'll note that for specifying dependencies and projects, the full name doesn't need to be used. Thanks to fuzzy matching, you can just specify e.g. "mftr widgets" and have it match "Manufacture widgets".

To try out the example:

./hjson_to_gantt --begin-date 2016-10-10 --end-date 2016-11-13 example.hjson --name example

This will output example_daily.svg and example_weekly.svg.

A PNG rendering of example_daily.svg is shown below (Github doesn't allow embedded SVG):

This script is released under the terms of the MIT license (see LICENSE). However, note that the python-gantt library this script uses is GPLv3+ meaning the combination is effectively GPLv3+.