⌛ added a progress bar

Author: royalbhati

progress/progress.go

@@ -0,0 +1,51 @@
+package progress
+
+import (
+	"fmt"
+)
+
+type Bar struct {
+	percent int64  // progress percentage
+	cur     int64  // current progress
+	total   int64  // total value for progress
+	rate    string // the actual progress bar to be printed
+	graph   string // the fill value for progress bar
+}
+
+func (bar *Bar) NewOption(start, total int64) {
+	bar.cur = start
+	bar.total = total
+	if bar.graph == "" {
+		bar.graph = "█"
+	}
+	bar.percent = bar.getPercent()
+	for i := 0; i < int(bar.percent); i += 2 {
+		bar.rate += bar.graph // initial progress position
+	}
+}
+func (bar *Bar) getPercent() int64 {
+	return int64(float32(bar.cur) / float32(bar.total) * 100)
+}
+
+func (bar *Bar) NewOptionWithGraph(start, total int64, graph string) {
+	bar.graph = graph
+	bar.NewOption(start, total)
+}
+
+func (bar *Bar) Play(cur int64) {
+	bar.cur = cur
+	last := bar.percent
+	bar.percent = bar.getPercent()
+	if bar.percent != last && bar.percent%2 == 0 {
+		calc := int(100 / (bar.total * 2))
+		for x := 0; x <= calc; x++ {
+			bar.rate = bar.rate + bar.graph
+		}
+	}
+
+	fmt.Printf("\r\u001b[32m[%-50s]%3d%% %8d/%d \033[5;36m", bar.rate, bar.percent, bar.cur, bar.total)
+}
+
+func (bar *Bar) Finish() {
+	fmt.Println()
+}