All files / src/pack/writeArchive index.ts

100% Statements 50/50
100% Branches 3/3
100% Functions 1/1
100% Lines 50/50

Press n or j to go to the next uncovered block, b, p or k for the previous block.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 511x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 15x 15x 15x 15x 15x 15x 15x 15x 15x 14x 14x 15x 1x 1x 1x 1x 1x 1x 15x  
/**
 * 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 { constants, gzip } from 'node:zlib'
import { promisify } from 'node:util'
import type { ArchiveManifest } from '../../.types/ArchiveManifest/type.js'
import type { CompressionLevel } from '../../.types/PackArgs/type.js'
import { readBytecodec } from '../../.helpers/readBytecodec/index.js'
import { toNodearchiveError } from '../../.helpers/toNodearchiveError/index.js'
 
const gzipAsync = promisify(gzip)
 
const compressionLevels: Record<CompressionLevel, number> = {
  Optimal: constants.Z_BEST_COMPRESSION,
  Fastest: constants.Z_BEST_SPEED,
  NoCompression: constants.Z_NO_COMPRESSION,
}
 
export async function writeArchive(
  manifest: ArchiveManifest,
  compressionLevel: CompressionLevel = 'Optimal'
): Promise<Uint8Array> {
  try {
    const { fromJSON } = await readBytecodec()
    const payload = fromJSON(manifest)
    const buffer = await gzipAsync(payload, {
      level: compressionLevels[compressionLevel],
    })
 
    return Uint8Array.from(buffer)
  } catch (error) {
    throw toNodearchiveError(
      error,
      'ARCHIVE_SERIALIZATION_FAILED',
      'Failed to encode archive'
    )
  }
}