cri-o/libkpod/common/common.go

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package common
import (
"io"
cp "github.com/containers/image/copy"
"github.com/containers/image/types"
)
// GetCopyOptions constructs a new containers/image/copy.Options{} struct from the given parameters
func GetCopyOptions(reportWriter io.Writer, signaturePolicyPath string, srcDockerRegistry, destDockerRegistry *DockerRegistryOptions, signing SigningOptions) *cp.Options {
if srcDockerRegistry == nil {
srcDockerRegistry = &DockerRegistryOptions{}
}
if destDockerRegistry == nil {
destDockerRegistry = &DockerRegistryOptions{}
}
srcContext := srcDockerRegistry.GetSystemContext(signaturePolicyPath)
destContext := destDockerRegistry.GetSystemContext(signaturePolicyPath)
return &cp.Options{
RemoveSignatures: signing.RemoveSignatures,
SignBy: signing.SignBy,
ReportWriter: reportWriter,
SourceCtx: srcContext,
DestinationCtx: destContext,
}
}
// GetSystemContext Constructs a new containers/image/types.SystemContext{} struct from the given signaturePolicy path
func GetSystemContext(signaturePolicyPath string) *types.SystemContext {
sc := &types.SystemContext{}
if signaturePolicyPath != "" {
sc.SignaturePolicyPath = signaturePolicyPath
}
return sc
}
// CopyStringStringMap deep copies a map[string]string and returns the result
func CopyStringStringMap(m map[string]string) map[string]string {
n := map[string]string{}
for k, v := range m {
n[k] = v
}
return n
}
// IsTrue determines whether the given string equals "true"
func IsTrue(str string) bool {
return str == "true"
}
// IsFalse determines whether the given string equals "false"
func IsFalse(str string) bool {
return str == "false"
}
// IsValidBool determines whether the given string equals "true" or "false"
func IsValidBool(str string) bool {
return IsTrue(str) || IsFalse(str)
}