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e3a7739f42
Split out util file in same way. Signed-off-by: Justin Cormack <justin.cormack@docker.com>
30 lines
594 B
Go
30 lines
594 B
Go
package main
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import (
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"strconv"
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"strings"
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)
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// This function parses the "size" parameter of a disk specification
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// and returns the size in MB. The "size" parameter defaults to GB, but
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// the unit can be explicitly set with either a G (for GB) or M (for
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// MB). It returns the disk size in MB.
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func getDiskSizeMB(s string) (int, error) {
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if s == "" {
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return 0, nil
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}
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sz := len(s)
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if strings.HasSuffix(s, "M") {
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return strconv.Atoi(s[:sz-1])
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}
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if strings.HasSuffix(s, "G") {
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s = s[:sz-1]
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}
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i, err := strconv.Atoi(s)
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if err != nil {
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return 0, err
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}
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return 1024 * i, nil
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}
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