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/var/lang/lib/node_modules/npm/node_modules/tar/dist/commonjs

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get-write-flag.js1.5 KB · 32 lines
"use strict";// Get the appropriate flag to use for creating files// We use fmap on Windows platforms for files less than// 512kb.  This is a fairly low limit, but avoids making// things slower in some cases.  Since most of what this// library is used for is extracting tarballs of many// relatively small files in npm packages and the like,// it can be a big boost on Windows platforms.var __importDefault = (this && this.__importDefault) || function (mod) {    return (mod && mod.__esModule) ? mod : { "default": mod };};Object.defineProperty(exports, "__esModule", { value: true });exports.getWriteFlag = void 0;const fs_1 = __importDefault(require("fs"));const platform = process.env.__FAKE_PLATFORM__ || process.platform;const isWindows = platform === 'win32';/* c8 ignore start */const { O_CREAT, O_NOFOLLOW, O_TRUNC, O_WRONLY } = fs_1.default.constants;const UV_FS_O_FILEMAP = Number(process.env.__FAKE_FS_O_FILENAME__) ||    fs_1.default.constants.UV_FS_O_FILEMAP ||    0;/* c8 ignore stop */const fMapEnabled = isWindows && !!UV_FS_O_FILEMAP;const fMapLimit = 512 * 1024;const fMapFlag = UV_FS_O_FILEMAP | O_TRUNC | O_CREAT | O_WRONLY;const noFollowFlag = !isWindows && typeof O_NOFOLLOW === 'number' ?    O_NOFOLLOW | O_TRUNC | O_CREAT | O_WRONLY    : null;exports.getWriteFlag = noFollowFlag !== null ? () => noFollowFlag    : !fMapEnabled ? () => 'w'        : (size) => (size < fMapLimit ? fMapFlag : 'w');//# sourceMappingURL=get-write-flag.js.map