implement: ipfs key list

Signed-off-by: Max Peng <[email protected]>
(cherry picked from commit 64b0a1e)

Author: pengisgood

key.go

@@ -0,0 +1,21 @@
+package shell
+
+import "context"
+
+type Key struct {
+	Id   string
+	Name string
+}
+
+type keyListOutput struct {
+	Keys []*Key
+}
+
+// KeyList List all local keypairs
+func (s *Shell) KeyList(ctx context.Context) ([]*Key, error) {
+	var out keyListOutput
+	if err := s.Request("key/list").Exec(ctx, &out); err != nil {
+		return nil, err
+	}
+	return out.Keys, nil
+}

key_test.go

@@ -0,0 +1,20 @@
+package shell
+
+import (
+	"context"
+	"testing"
+
+	"github.com/cheekybits/is"
+)
+
+func TestKeyList(t *testing.T) {
+	is := is.New(t)
+	s := NewShell(shellUrl)
+
+	keys, err := s.KeyList(context.Background())
+	is.Nil(err)
+
+	is.Equal(len(keys), 1)
+	is.Equal(keys[0].Name, "self")
+	is.NotNil(keys[0].Id)
+}