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handle big numbers and logfile in dockerfile
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -11,4 +11,4 @@ new: build | |
| @go build -o bin/$(BINARY_NAME) && ./bin/$(BINARY_NAME) | ||
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| test: | ||
| @go test -v ./... | ||
| @go test -v ./... | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,132 @@ | ||
| package main | ||
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| import ( | ||
| "math" | ||
| "strconv" | ||
| "strings" | ||
| ) | ||
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| // credit to https://github.com/DeyV/gotools/blob/master/numbers.go | ||
| func roundPrec(x float64, prec int) float64 { | ||
| if math.IsNaN(x) || math.IsInf(x, 0) { | ||
| return x | ||
| } | ||
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| sign := 1.0 | ||
| if x < 0 { | ||
| sign = -1 | ||
| x *= -1 | ||
| } | ||
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||
| var rounder float64 | ||
| pow := math.Pow(10, float64(prec)) | ||
| intermed := x * pow | ||
| _, frac := math.Modf(intermed) | ||
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| if frac >= 0.5 { | ||
| rounder = math.Ceil(intermed) | ||
| } else { | ||
| rounder = math.Floor(intermed) | ||
| } | ||
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| return rounder / pow * sign | ||
| } | ||
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| func numberFormat(number float64, decimals int, decPoint, thousandsSep string) string { | ||
| if math.IsNaN(number) || math.IsInf(number, 0) { | ||
| number = 0 | ||
| } | ||
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| var ret string | ||
| var negative bool | ||
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| if number < 0 { | ||
| number *= -1 | ||
| negative = true | ||
| } | ||
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| d, fract := math.Modf(number) | ||
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| if decimals <= 0 { | ||
| fract = 0 | ||
| } else { | ||
| pow := math.Pow(10, float64(decimals)) | ||
| fract = roundPrec(fract*pow, 0) | ||
| } | ||
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||
| if thousandsSep == "" { | ||
| ret = strconv.FormatFloat(d, 'f', 0, 64) | ||
| } else if d >= 1 { | ||
| var x float64 | ||
| for d >= 1 { | ||
| d, x = math.Modf(d / 1000) | ||
| x = x * 1000 | ||
| ret = strconv.FormatFloat(x, 'f', 0, 64) + ret | ||
| if d >= 1 { | ||
| ret = thousandsSep + ret | ||
| } | ||
| } | ||
| } else { | ||
| ret = "0" | ||
| } | ||
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| fracts := strconv.FormatFloat(fract, 'f', 0, 64) | ||
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| // "0" pad left | ||
| for i := len(fracts); i < decimals; i++ { | ||
| fracts = "0" + fracts | ||
| } | ||
|
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| ret += decPoint + fracts | ||
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| if negative { | ||
| ret = "-" + ret | ||
| } | ||
| return ret | ||
| } | ||
|
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| func roundInt(input float64) int { | ||
| var result float64 | ||
|
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| if input < 0 { | ||
| result = math.Ceil(input - 0.5) | ||
| } else { | ||
| result = math.Floor(input + 0.5) | ||
| } | ||
|
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| // only interested in integer, ignore fractional | ||
| i, _ := math.Modf(result) | ||
|
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| return int(i) | ||
| } | ||
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| func formatNumber(input float64) string { | ||
| x := roundInt(input) | ||
| xFormatted := numberFormat(float64(x), 2, ".", ",") | ||
| return xFormatted | ||
| } | ||
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| func nearestThousandFormat(num float64) string { | ||
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| if math.Abs(num) < 999.5 { | ||
| xNum := formatNumber(num) | ||
| xNumStr := xNum[:len(xNum)-3] | ||
| return string(xNumStr) | ||
| } | ||
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| xNum := formatNumber(num) | ||
| // first, remove the .00 then convert to slice | ||
| xNumStr := xNum[:len(xNum)-3] | ||
| xNumCleaned := strings.Replace(xNumStr, ",", " ", -1) | ||
| xNumSlice := strings.Fields(xNumCleaned) | ||
| count := len(xNumSlice) - 2 | ||
| unit := [4]string{"k", "m", "b", "t"} | ||
| xPart := unit[count] | ||
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| afterDecimal := "" | ||
| if xNumSlice[1][0] != 0 { | ||
| afterDecimal = "." + string(xNumSlice[1][0]) | ||
| } | ||
| final := xNumSlice[0] + afterDecimal + xPart | ||
| return final | ||
| } |