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utils.go
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utils.go
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package utils
import (
"fmt"
"regexp"
"strings"
"github.com/blang/semver"
"github.com/pkg/errors"
)
// IsGPUInstanceType returns true if the instance type is GPU optimised
func IsGPUInstanceType(instanceType string) bool {
return strings.HasPrefix(instanceType, "p2") || strings.HasPrefix(instanceType, "p3") || strings.HasPrefix(instanceType, "g3") || strings.HasPrefix(instanceType, "g4") || strings.HasPrefix(instanceType, "inf1")
}
// IsInferentiaInstanceType returns true if the instance type requires AWS Neuron
func IsInferentiaInstanceType(instanceType string) bool {
return strings.HasPrefix(instanceType, "inf1")
}
var matchFirstCap = regexp.MustCompile("([0-9]+|[A-Z])")
// ToKebabCase turns a CamelCase string into a kebab-case string
func ToKebabCase(str string) string {
kebab := matchFirstCap.ReplaceAllString(str, "-${1}")
kebab = strings.TrimPrefix(kebab, "-")
return strings.ToLower(kebab)
}
// IsMinVersion compares a given version number with a minimum one and returns true if
// version >= minimumVersion
func IsMinVersion(minimumVersion, version string) (bool, error) {
minVersion, err := semver.ParseTolerant(minimumVersion)
if err != nil {
return false, fmt.Errorf("unable to parse minimum version required %s", minVersion)
}
targetVersion, err := semver.ParseTolerant(version)
if err != nil {
return false, fmt.Errorf("unable to parse target version %s", version)
}
return targetVersion.GE(minVersion), nil
}
// CompareVersions compares two version strings with the usual conventions:
// returns 0 if a == b
// returns 1 if a > b
// returns -1 if b < a
func CompareVersions(a, b string) (int, error) {
aVersion, err := semver.ParseTolerant(a)
if err != nil {
return 0, errors.Wrapf(err, "unable to parse first version %q", a)
}
bVersion, err := semver.ParseTolerant(b)
if err != nil {
return 0, errors.Wrapf(err, "unable to parse second version %q", b)
}
return aVersion.Compare(bVersion), nil
}