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January 28, 2021 21:00
Undelete S3 files in bulk
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#!/bin/bash | |
# | |
# Undeletes S3 files in bulk for a provided bucket/prefix/date deleted | |
# | |
# Author: Christopher Carman | |
# Based on https://stackoverflow.com/a/64352685/4175944 | |
set -e | |
Bucket=$1 | |
Prefix=$2 | |
DateDeleted=$3 | |
[ "$#" -ne 3 ] && echo "Error: Incorrect number of parameters" && error=true | |
[[ ! $DateDeleted =~ ^[1-9][0-9]{3}-[0-9]{2}-[0-9]{2}$ ]] && echo "Error: DateDeleted must be in yyyy-mm-dd format" && error=true | |
[[ -z "$AWS_ACCESS_KEY_ID" ]] && echo "Error: Missing environment variable: AWS_ACCESS_KEY_ID" && error=true | |
[[ -z "$AWS_SECRET_ACCESS_KEY" ]] && echo "Error: Missing environment variable: AWS_SECRET_ACCESS_KEY" && error=true | |
if [ -n "$error" ]; then | |
SCRIPT=`basename "$0"` | |
echo "" | |
echo "Usage: $SCRIPT <Bucket> <Prefix> <DateDeleted:yyyy-mm-dd>" | |
exit 1 | |
fi | |
echo "✓ Looking for matches" | |
echo "" | |
s3Result=$(aws s3api list-object-versions --bucket $Bucket --prefix $Prefix --query "DeleteMarkers[?IsLatest && starts_with(LastModified,'$DateDeleted')].{Key:Key,VersionId:VersionId}") | |
matches=$(echo "$s3Result" | jq -c '.[]?') | |
if [ -z "$matches" ]; then | |
echo "No matches found" | |
exit 0 | |
fi | |
echo "Matched files:" | |
echo "$matches" | |
echo "" | |
read -p "⚠️ Undelete the above files? (yes/no)" -r REPLY | |
echo "" | |
if [[ $REPLY = "yes" ]] | |
then | |
echo "✓ Undeleting files. This may take a while..." | |
echo "" | |
for row in $matches; do | |
key=$(echo "$row" | jq -r '.Key' ) | |
versionId=$(echo "$row" | jq -r '.VersionId' ) | |
echo $(aws s3api delete-object --bucket $Bucket --key $key --version-id $versionId) & done | |
wait | |
echo "" | |
echo "Done" | |
else | |
echo "Cancelled" | |
fi |
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