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70 lines
1.7 KiB
70 lines
1.7 KiB
/*
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package memstorage provides a simple in-memory key store designed for
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use in test cases, particularly to isolate them from the filesystem,
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concurrency, and cleanup issues.
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*/
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package memstorage
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import (
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"github.com/pkg/errors"
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keys "github.com/tendermint/go-keys"
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)
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type data struct {
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info keys.Info
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key []byte
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}
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type MemStore map[string]data
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// New creates an instance of file-based key storage with tight permissions
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func New() MemStore {
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return MemStore{}
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}
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// assertStorage just makes sure we implement the Storage interface
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func (s MemStore) assertStorage() keys.Storage {
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return s
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}
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// Put adds the given key, returns an error if it another key
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// is already stored under this name
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func (s MemStore) Put(name string, key []byte, info keys.Info) error {
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if _, ok := s[name]; ok {
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return errors.Errorf("Key named '%s' already exists", name)
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}
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s[name] = data{info, key}
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return nil
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}
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// Get returns the key stored under the name, or returns an error if not present
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func (s MemStore) Get(name string) ([]byte, keys.Info, error) {
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var err error
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d, ok := s[name]
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if !ok {
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err = errors.Errorf("Key named '%s' doesn't exist", name)
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}
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return d.key, d.info.Format(), err
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}
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// List returns the public info of all keys in the MemStore in unsorted order
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func (s MemStore) List() (keys.Infos, error) {
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res := make([]keys.Info, len(s))
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i := 0
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for _, d := range s {
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res[i] = d.info.Format()
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i++
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}
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return res, nil
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}
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// Delete removes the named key from the MemStore, raising an error if it
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// wasn't present yet.
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func (s MemStore) Delete(name string) error {
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_, ok := s[name]
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if !ok {
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return errors.Errorf("Key named '%s' doesn't exist", name)
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}
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delete(s, name)
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return nil
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}
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