@now/build-utils
Version:
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JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.isSymbolicLink = void 0;
const path_1 = __importDefault(require("path"));
const debug_1 = __importDefault(require("../debug"));
const file_fs_ref_1 = __importDefault(require("../file-fs-ref"));
const fs_extra_1 = require("fs-extra");
const S_IFMT = 61440; /* 0170000 type of file */
const S_IFLNK = 40960; /* 0120000 symbolic link */
function isSymbolicLink(mode) {
return (mode & S_IFMT) === S_IFLNK;
}
exports.isSymbolicLink = isSymbolicLink;
async function downloadFile(file, fsPath) {
const { mode } = file;
if (mode && isSymbolicLink(mode) && file.type === 'FileFsRef') {
const [target] = await Promise.all([
fs_extra_1.readlink(file.fsPath),
fs_extra_1.mkdirp(path_1.default.dirname(fsPath)),
]);
await fs_extra_1.symlink(target, fsPath);
return file_fs_ref_1.default.fromFsPath({ mode, fsPath });
}
else {
const stream = file.toStream();
return file_fs_ref_1.default.fromStream({ mode, stream, fsPath });
}
}
async function removeFile(basePath, fileMatched) {
const file = path_1.default.join(basePath, fileMatched);
await fs_extra_1.remove(file);
}
async function download(files, basePath, meta) {
const { isDev = false, skipDownload = false, filesChanged = null, filesRemoved = null, } = meta || {};
if (isDev || skipDownload) {
// In `vercel dev`, the `download()` function is a no-op because
// the `basePath` matches the `cwd` of the dev server, so the
// source files are already available.
return files;
}
debug_1.default('Downloading deployment source files...');
const start = Date.now();
const files2 = {};
const filenames = Object.keys(files);
await Promise.all(filenames.map(async (name) => {
// If the file does not exist anymore, remove it.
if (Array.isArray(filesRemoved) && filesRemoved.includes(name)) {
await removeFile(basePath, name);
return;
}
// If a file didn't change, do not re-download it.
if (Array.isArray(filesChanged) && !filesChanged.includes(name)) {
return;
}
const file = files[name];
const fsPath = path_1.default.join(basePath, name);
files2[name] = await downloadFile(file, fsPath);
}));
const duration = Date.now() - start;
debug_1.default(`Downloaded ${filenames.length} source files: ${duration}ms`);
return files2;
}
exports.default = download;