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38 lines
600 B
Go
38 lines
600 B
Go
package utils
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import (
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"strconv"
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"strings"
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)
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// returns -1 if the first version is lower than the second, 0 if they are equal, and 1 if the second is lower.
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func CompareVersions(a, b string) int {
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as := strings.Split(a, ".")
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bs := strings.Split(b, ".")
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var loop int
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if len(as) > len(bs) {
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loop = len(as)
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} else {
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loop = len(bs)
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}
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for i := 0; i < loop; i++ {
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var x, y string
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if len(as) > i {
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x = as[i]
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}
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if len(bs) > i {
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y = bs[i]
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}
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xi, _ := strconv.Atoi(x)
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yi, _ := strconv.Atoi(y)
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if xi > yi {
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return 1
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} else if xi < yi {
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return -1
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}
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}
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return 0
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}
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