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authorbaude <bbaude@redhat.com>2020-05-04 14:10:30 -0500
committerbaude <bbaude@redhat.com>2020-05-05 08:46:51 -0500
commitb5a235df900a6471895111b4de5f80732f7f563a (patch)
tree7c6bb1cb564f6d69a0790fdea064a18bd0917ed1 /utils/utils.go
parent49107a5a2ee98793b4ecfaa0e1a6cacfdf5ccdd0 (diff)
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Signed-off-by: baude <bbaude@redhat.com>
Diffstat (limited to 'utils/utils.go')
-rw-r--r--utils/utils.go19
1 files changed, 19 insertions, 0 deletions
diff --git a/utils/utils.go b/utils/utils.go
index cf58ca3fb..27ce1821d 100644
--- a/utils/utils.go
+++ b/utils/utils.go
@@ -6,6 +6,7 @@ import (
"io"
"os"
"os/exec"
+ "strconv"
"strings"
"github.com/containers/storage/pkg/archive"
@@ -125,3 +126,21 @@ func Tar(source string) (io.ReadCloser, error) {
logrus.Debugf("creating tarball of %s", source)
return archive.Tar(source, archive.Uncompressed)
}
+
+// RemoveScientificNotationFromFloat returns a float without any
+// scientific notation if the number has any.
+// golang does not handle conversion of float64s that have scientific
+// notation in them and otherwise stinks. please replace this if you have
+// a better implementation.
+func RemoveScientificNotationFromFloat(x float64) (float64, error) {
+ bigNum := strconv.FormatFloat(x, 'g', -1, 64)
+ breakPoint := strings.IndexAny(bigNum, "Ee")
+ if breakPoint > 0 {
+ bigNum = bigNum[:breakPoint]
+ }
+ result, err := strconv.ParseFloat(bigNum, 64)
+ if err != nil {
+ return x, errors.Wrapf(err, "unable to remove scientific number from calculations")
+ }
+ return result, nil
+}