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package storage
import (
"fmt"
"github.com/containers/storage/types"
)
// ParseIDMapping takes idmappings and subuid and subgid maps and returns a storage mapping
func ParseIDMapping(UIDMapSlice, GIDMapSlice []string, subUIDMap, subGIDMap string) (*types.IDMappingOptions, error) {
return types.ParseIDMapping(UIDMapSlice, GIDMapSlice, subUIDMap, subGIDMap)
}
// DefaultStoreOptions returns the default storage options for containers
func DefaultStoreOptions() (types.StoreOptions, error) {
return types.DefaultStoreOptions()
}
func validateMountOptions(mountOptions []string) error {
var Empty struct{}
// Add invalid options for ImageMount() here.
invalidOptions := map[string]struct{}{
"rw": Empty,
}
for _, opt := range mountOptions {
if _, ok := invalidOptions[opt]; ok {
return fmt.Errorf(" %q option not supported", opt)
}
}
return nil
}
func applyNameOperation(oldNames []string, opParameters []string, op updateNameOperation) ([]string, error) {
var result []string
switch op {
case setNames:
// ignore all old names and just return new names
result = opParameters
case removeNames:
// remove given names from old names
result = make([]string, 0, len(oldNames))
for _, name := range oldNames {
// only keep names in final result which do not intersect with input names
// basically `result = oldNames - opParameters`
nameShouldBeRemoved := false
for _, opName := range opParameters {
if name == opName {
nameShouldBeRemoved = true
}
}
if !nameShouldBeRemoved {
result = append(result, name)
}
}
case addNames:
result = make([]string, 0, len(opParameters)+len(oldNames))
result = append(result, opParameters...)
result = append(result, oldNames...)
default:
return result, errInvalidUpdateNameOperation
}
return dedupeStrings(result), nil
}
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