From 2b77ac480dd7a349706c50078df8dd63c4ee9a07 Mon Sep 17 00:00:00 2001
From: Chirag Jain <chirgjn@gmail.com>
Date: Fri, 9 Aug 2024 23:22:27 +0530
Subject: [PATCH] avoid uploading corrupted cache to S3

---
 lib/backends/s3.bash | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/lib/backends/s3.bash b/lib/backends/s3.bash
index bd89553..f1020d6 100644
--- a/lib/backends/s3.bash
+++ b/lib/backends/s3.bash
@@ -155,7 +155,17 @@ function cache() {
     TMP_FILE="$(mktemp)"
     tar "${BK_TAR_ARGS[@]}" "${TMP_FILE}" ${TAR_TARGETS}
     mv -f "${TMP_FILE}" "${TAR_FILE}"
-    aws s3 cp ${BK_CUSTOM_AWS_ARGS} "${TAR_FILE}" "s3://${BUCKET}/${TAR_FILE}"
+
+    if ! tar tf "${TAR_FILE}" &> /dev/null; then
+      rm -rf "${TAR_FILE}"
+      tar "${BK_TAR_ARGS[@]}" "${TMP_FILE}" ${TAR_TARGETS}
+      mv -f "${TMP_FILE}" "${TAR_FILE}"
+    fi
+    if ! tar tf "${TAR_FILE}" &> /dev/null; then
+      error "Error while packaging cache"
+    else
+      aws s3 cp ${BK_CUSTOM_AWS_ARGS} "${TAR_FILE}" "s3://${BUCKET}/${TAR_FILE}"
+    fi
   fi
   rm -f "${TAR_FILE}"
 }