/
storages.go
65 lines (54 loc) · 1.81 KB
/
storages.go
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package cluster
import (
"fmt"
"strings"
)
// getConfigPrefix returns a full configuration prefix.
func getConfigPrefix(basePrefix string) string {
prefix := strings.TrimRight(basePrefix, "/")
return fmt.Sprintf("%s/%s/", prefix, "config")
}
// getConfigKey returns a full path to a configuration key.
func getConfigKey(basePrefix, key string) string {
return getConfigPrefix(basePrefix) + key
}
// getHashesPrefix returns a full hashes prefix.
func getHashesPrefix(basePrefix string) string {
prefix := strings.TrimRight(basePrefix, "/")
return fmt.Sprintf("%s/%s/", prefix, "hashes")
}
// getHashesKey returns a full path to a hash of a key.
func getHashesKey(basePrefix, hash, key string) string {
return getHashesPrefix(basePrefix) + fmt.Sprintf("%s/%s", hash, key)
}
// getSignPrefix returns a full sign prefix.
func getSignPrefix(basePrefix string) string {
prefix := strings.TrimRight(basePrefix, "/")
return fmt.Sprintf("%s/%s/", prefix, "sig")
}
// getSignKey returns a full path to a sign of a key.
func getSignKey(basePrefix, key string) string {
return getSignPrefix(basePrefix) + key
}
// parseHashPath parses a full key path and returns true, hash, key on success.
func parseHashPath(path, prefix string) (bool, string, string) {
hashesPrefix := getHashesPrefix(prefix)
hashPath, found := strings.CutPrefix(path, hashesPrefix)
if !found {
return false, "", ""
}
split := strings.SplitN(hashPath, "/", 2)
if len(split) != 2 {
return false, "", ""
}
return true, split[0], split[1]
}
// GetStorageKey extracts the key from the source that contains the config prefix.
func GetStorageKey(prefix, source string) (string, error) {
cfgPrefix := getConfigPrefix(prefix)
key, ok := strings.CutPrefix(source, cfgPrefix)
if !ok {
return "", fmt.Errorf("source must begin with: %s", cfgPrefix)
}
return key, nil
}