25 lines
929 B
Bash
Executable file
25 lines
929 B
Bash
Executable file
#!/bin/sh
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# http://concourse.ci/implementing-resources.html#resource-check
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set -e
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# parse incoming config data
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payload=`cat`
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bucket=$(echo "$payload" | jq -r '.source.bucket')
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prefix="$(echo "$payload" | jq -r '.source.path // ""')"
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# export for `aws` cli
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AWS_ACCESS_KEY_ID=$(echo "$payload" | jq -r '.source.access_key_id')
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AWS_SECRET_ACCESS_KEY=$(echo "$payload" | jq -r '.source.secret_access_key')
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# Due to precedence rules, must be unset to support AWS IAM Roles.
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if [ -n "$AWS_ACCESS_KEY_ID" ] && [ -n "$AWS_SECRET_ACCESS_KEY" ]; then
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export AWS_ACCESS_KEY_ID=$AWS_ACCESS_KEY_ID
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export AWS_SECRET_ACCESS_KEY=$AWS_SECRET_ACCESS_KEY
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fi
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# Consider the most recent LastModified timestamp as the most recent version.
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timestamps=$(aws s3api list-objects --bucket $bucket --prefix "$prefix" --query 'Contents[].{LastModified: LastModified}')
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recent="$(echo $timestamps | jq -r 'max_by(.LastModified)')"
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echo "[$recent]"
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