30 lines
803 B
Nix
30 lines
803 B
Nix
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{ stdenv, runCommand, awscli }:
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{ s3url
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, sha256
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, region ? "us-east-1"
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, credentials ? null # Default to looking at local EC2 metadata service
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, executable ? false
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, recursiveHash ? false
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, postFetch ? null
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}:
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let
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credentialAttrs = stdenv.lib.optionalAttrs (credentials != null) {
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AWS_ACCESS_KEY_ID = credentials.access_key_id;
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AWS_SECRET_ACCESS_KEY = credentials.secret_access_key;
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AWS_SESSION_TOKEN = credentials.session_token ? null;
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};
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in runCommand "foo" ({
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buildInputs = [ awscli ];
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outputHashAlgo = "sha256";
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outputHash = sha256;
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outputHashMode = if recursiveHash then "recursive" else "flat";
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} // credentialAttrs) (if postFetch != null then ''
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downloadedFile="$(mktemp)"
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aws s3 cp ${s3url} $downloadedFile
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${postFetch}
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'' else ''
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aws s3 cp ${s3url} $out
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'')
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