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* Copyright 2026 nodearchive
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { gzip } from 'node:zlib'
import { promisify } from 'node:util'
import type { CompressionLevel } from '../../.types/PackArgs/type.js'
import { toNodearchiveError } from '../../.helpers/toNodearchiveError/index.js'
import { toZlibLevel } from '../toZlibLevel/index.js'
const gzipAsync = promisify(gzip)
export async function gzipBytes(
bytes: Uint8Array,
compressionLevel: CompressionLevel = 'Optimal'
): Promise<Uint8Array> {
try {
const buffer = await gzipAsync(Buffer.from(bytes), {
level: toZlibLevel(compressionLevel),
})
return Uint8Array.from(buffer)
} catch (error) {
throw toNodearchiveError(
error,
'ARCHIVE_SERIALIZATION_FAILED',
'Failed to encode gzip archive'
)
}
}
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