name : tar-create-options.js const isPackageBin = require('./is-package-bin.js') const tarCreateOptions = manifest => ({ cwd: manifest._resolved, prefix: 'package/', portable: true, gzip: { // forcing the level to 9 seems to avoid some // platform specific optimizations that cause // integrity mismatch errors due to differing // end results after compression level: 9, }, // ensure that package bins are always executable // Note that npm-packlist is already filtering out // anything that is not a regular file, ignored by // .npmignore or package.json "files", etc. filter: (path, stat) => { if (isPackageBin(manifest, path)) { stat.mode |= 0o111 } return true }, // Provide a specific date in the 1980s for the benefit of zip, // which is confounded by files dated at the Unix epoch 0. mtime: new Date('1985-10-26T08:15:00.000Z'), }) module.exports = tarCreateOptions