From c71deae38cec2b5255e8e1897d552ada104c1d04 Mon Sep 17 00:00:00 2001
From: Tejal Desai <tejaldesai@google.com>
Date: Thu, 7 May 2020 16:37:17 -0700
Subject: [PATCH] remove dedupes

---
 pkg/executor/build.go | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/pkg/executor/build.go b/pkg/executor/build.go
index 87a44df436..376e11ef4c 100644
--- a/pkg/executor/build.go
+++ b/pkg/executor/build.go
@@ -710,7 +710,16 @@ func filesToSave(deps []string) ([]string, error) {
 			srcFiles = append(srcFiles, f)
 		}
 	}
-	return srcFiles, nil
+	// remove duplicates
+	deduped := []string{}
+	m := map[string]struct{}{}
+	for _, f := range srcFiles {
+		if _, ok := m[f]; !ok {
+			deduped = append(deduped, f)
+			m[f] = struct{}{}
+		}
+	}
+	return deduped, nil
 }
 
 func fetchExtraStages(stages []config.KanikoStage, opts *config.KanikoOptions) error {