Vegalite spec for displaying count of Vegalite packages in linear and log scale

nimble-packages-count.vl.json

{
  "$schema": "https://vega.github.io/schema/vega-lite/v4.json",
  "title": "Number of Nimble packages",
  "data": {"url": "https://gist.githubusercontent.com/pietroppeter/b7cbd29c2a1c4db443712396c34201e8/raw/cd0b5a4a0446cf87b851f3c9353b273cbd8f06c3/packages_count.csv", "format":{"type":"csv"}},
  "transform": [
    {"calculate": "timeFormat(datum.timestamp, '%Y-%m-%d')", "as": "date"},
    {"filter": "datum.error == 0"}
  ],  
  "width": 800,
  "height": 500,
    "selection": {
    "grid": {
      "type": "interval", "bind": "scales"
    }
  },
  "mark": "line",
  "encoding": {
    "x": {"field": "timestamp", "type": "temporal", "axis": {"title":""}},
    "y": {"field": "count", "type": "quantitative", "axis": {"title":""}
    },
    "tooltip": [
      {"field":"date", "type":"nominal"},
      {"field":"commit", "type":"nominal"},
      {"field": "count", "type":"quantitative"}
      ]
    }
}