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https://github.com/nikolaydubina/calendarheatmap.git
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Merge pull request #8 from nikolaydubina/feature/script-stdin
better json data example; +readme example
This commit is contained in:
Nikolay Dubina
GitHub
commit
4a9956de4c
34
README.md
34
README.md
@ -5,7 +5,19 @@
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Self-contained, plain Go implementation of calendar heatmap inspired by Github contribution activity.
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```
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$ go build
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$ echo '{
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"2020-05-16": 8,
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"2020-05-17": 13,
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"2020-05-18": 5,
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"2020-05-19": 8,
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"2020-05-20": 5
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}' | ./calendarheatmap > chart.png
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```
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Basic
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Colorscales
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@ -42,33 +54,21 @@ img := charts.NewHeatmap(charts.HeatmapConfig{
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})
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```
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Example script,
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Example script
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```
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$ go build
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$ ./calendarheatmap -input testdata/basic.json -output basicjson.png
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$ ./calendarheatmap -input testdata/custom.txt -output custom.png -input-format row-day-seconds-count
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$ cat testdata/basic.json | ./calendarheatmap -output jpeg > chart.jpeg
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$ cat testdata/custom.txt | ./calendarheatmap -input row-day-seconds-count > custom.png
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$ ./calendarheatmap -h
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Usage of ./calendarheatmap:
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-colorscale string
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refer to colorscales for examples (default "PuBu9")
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-input string
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input filename (default "input.txt")
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-intput-format /parsers
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format of input file refer to /parsers for examples (default "json-basic")
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format of input file, refer to parsers module (default "json-basic")
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-labels
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labels for weekday and months (default true)
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-monthsep
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render month separator (default true)
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-output string
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output filename (default "chart.png")
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-output-format string
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output format (png, jpeg, gif) (default "png")
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```
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TODO:
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- [ ] SVG support
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- [ ] select start and end date
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```
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29
main.go
29
main.go
@ -19,18 +19,16 @@ import (
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)
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func main() {
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filenameInput := flag.String("input", "input.txt", "input filename")
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filenameChart := flag.String("output", "chart.png", "output filename")
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monthSep := flag.Bool("monthsep", true, "render month separator")
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colorScale := flag.String("colorscale", "PuBu9", "refer to colorscales for examples")
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inputFormat := flag.String("input", "json-basic", "format of input file, refer to parsers module")
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labels := flag.Bool("labels", true, "labels for weekday and months")
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outputFormat := flag.String("output-format", "png", "output format (png, jpeg, gif)")
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inputFormat := flag.String("input-format", "json-basic", "format of input file refer to `/parsers` for examples")
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monthSep := flag.Bool("monthsep", true, "render month separator")
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outputFormat := flag.String("output", "png", "output format (png, jpeg, gif)")
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flag.Parse()
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data, err := ioutil.ReadFile(*filenameInput)
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data, err := ioutil.ReadAll(os.Stdin)
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if err != nil {
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log.Fatal(fmt.Errorf("cant not read file: %w", err))
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log.Fatal(fmt.Errorf("cant not read from stdin: %w", err))
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}
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var parser parsers.Parser
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@ -40,10 +38,13 @@ func main() {
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case "json-basic":
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parser = &parsers.BasicJSONParser{}
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default:
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log.Fatal("unnknown parser format")
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log.Fatal("unknown parser format")
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return
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}
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year, countByDay, err := parser.Parse(data)
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if err != nil {
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log.Fatal("error parsing data: %w", err)
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}
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img := charts.NewHeatmap(charts.HeatmapConfig{
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Year: year,
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@ -58,23 +59,19 @@ func main() {
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TextColor: color.RGBA{100, 100, 100, 255},
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BorderColor: color.RGBA{200, 200, 200, 255},
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})
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f, err := os.Create(*filenameChart)
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if err != nil {
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log.Fatal(fmt.Errorf("can not create file: %w", err))
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}
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defer f.Close()
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outWriter := os.Stdout
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switch *outputFormat {
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case "png":
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if err := png.Encode(f, img); err != nil {
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if err := png.Encode(outWriter, img); err != nil {
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log.Fatal(fmt.Errorf("can not encode png: %w", err))
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}
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case "jpeg":
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if err := jpeg.Encode(f, img, nil); err != nil {
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if err := jpeg.Encode(outWriter, img, nil); err != nil {
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log.Fatal(fmt.Errorf("can not encode jpeg: %w", err))
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}
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case "gif":
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if err := gif.Encode(f, img, nil); err != nil {
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if err := gif.Encode(outWriter, img, nil); err != nil {
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log.Fatal(fmt.Errorf("can not encode gifg: %w", err))
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}
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default:
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48
testdata/basic.json
vendored
48
testdata/basic.json
vendored
@ -1,8 +1,42 @@
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{
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"2020-01-01": 1,
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"2020-01-02": 2,
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"2020-01-03": 3,
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"2020-01-04": 4,
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"2020-01-05": 5,
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"2020-01-06": 6
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}
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"2020-05-16": 8,
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"2020-05-17": 13,
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"2020-05-18": 5,
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"2020-05-19": 8,
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"2020-05-20": 5,
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"2020-05-21": 5,
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"2020-05-22": 3,
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"2020-05-23": 5,
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"2020-05-24": 6,
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"2020-05-25": 3,
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"2020-05-26": 5,
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"2020-05-27": 8,
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"2020-05-28": 2,
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"2020-05-29": 2,
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"2020-05-30": 8,
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"2020-05-31": 5,
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"2020-06-01": 1,
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"2020-06-02": 3,
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"2020-06-03": 1,
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"2020-06-04": 3,
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"2020-06-05": 1,
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"2020-06-06": 3,
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"2020-06-07": 5,
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"2020-06-09": 1,
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"2020-06-10": 2,
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"2020-06-12": 9,
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"2020-06-13": 7,
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"2020-06-14": 4,
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"2020-06-15": 1,
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"2020-06-17": 1,
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"2020-06-20": 2,
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"2020-06-21": 1,
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"2020-06-23": 2,
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"2020-06-24": 2,
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"2020-06-25": 3,
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"2020-06-26": 3,
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"2020-06-27": 2,
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"2020-06-28": 1,
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"2020-06-29": 1,
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"2020-06-30": 2
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}
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