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Go Report Card Go Reference codecov Tests Awesome

Self-contained, plain Go implementation of calendar heatmap inspired by GitHub contribution activity available via CLI and calendarheatmap.io

$ go install github.com/nikolaydubina/calendarheatmap@latest 
$ echo '{
    "2020-05-16": 8,
    "2020-05-17": 13,
    "2020-05-18": 5,
    "2020-05-19": 8,
    "2020-05-20": 5
}' | calendarheatmap > chart.png

Basic

basic

Colorscales

col1 col2 col2

UTF-8 col1

SVG

svg

Without month separator nosep

Without labels nolab

Without labels, without separator nosep_nolab