fix/bug: infinite loop non-existent input dir path

Signed-off-by: Guillaume de Rouville <guillaume.derouville@gmail.com>

cmd/dagger/cmd/input/dir.go

@@ -1,6 +1,7 @@
 package input
 
 import (
+	"os"
 	"path/filepath"
 	"strings"
 
@@ -31,6 +32,11 @@ var dirCmd = &cobra.Command{
 			lg.Fatal().Err(err).Str("path", args[1]).Msg("unable to resolve path")
 		}
 
+		// Check that directory exists
+		if _, err := os.Stat(p); os.IsNotExist(err) {
+			lg.Fatal().Err(err).Str("path", args[1]).Msg("dir doesn't exists")
+		}
+
 		workspace := common.CurrentWorkspace(ctx)
 		if !strings.HasPrefix(p, workspace.Path) {
 			lg.Fatal().Err(err).Str("path", args[1]).Msg("dir is outside the workspace")

tests/cli.bats

@@ -317,6 +317,10 @@ setup() {
     assert_output '{
   "foo": "bar"
 }'
+  
+  run "$DAGGER" input dir src xxx -e "input"
+  assert_failure
+  assert_output --partial "dir doesn't exists"
 }
 
 @test "dagger input dir: ignore .dagger" {