i/p/requestprompts: ensure /run/snapd exists before opening max promp…

…t id file

Signed-off-by: Oliver Calder <[email protected]>

interfaces/prompting/requestprompts/requestprompts.go

@@ -25,6 +25,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"os"
 	"path/filepath"
 	"sync"
 	"time"
@@ -241,6 +242,9 @@ const (
 // for a substantial amount of time (such as to lock and modify snapd state).
 func New(notifyPrompt func(userID uint32, promptID prompting.IDType, data map[string]string) error) (*PromptDB, error) {
 	maxIDFilepath := filepath.Join(dirs.SnapRunDir, "request-prompt-max-id")
+	if err := os.MkdirAll(dirs.SnapRunDir, 0o755); err != nil {
+		return nil, err
+	}
 	maxIDMmap, err := maxidmmap.OpenMaxIDMmap(maxIDFilepath)
 	if err != nil {
 		return nil, err

interfaces/prompting/requestprompts/requestprompts_test.go

@@ -74,7 +74,6 @@ func (s *requestpromptsSuite) SetUpTest(c *C) {
 	s.tmpdir = c.MkDir()
 	dirs.SetRootDir(s.tmpdir)
 	s.maxIDPath = filepath.Join(dirs.SnapRunDir, "request-prompt-max-id")
-	c.Assert(os.MkdirAll(dirs.SnapRunDir, 0700), IsNil)
 }
 
 func (s *requestpromptsSuite) TestNew(c *C) {
@@ -196,6 +195,8 @@ func (s *requestpromptsSuite) TestNewNextIDUniqueIDs(c *C) {
 	})
 	defer restore()
 
+	c.Assert(os.MkdirAll(dirs.SnapRunDir, 0o755), IsNil)
+
 	var initialMaxID uint64 = 42
 	var initialData [8]byte
 	*(*uint64)(unsafe.Pointer(&initialData[0])) = initialMaxID