module-link-unlink
Version:
Link and unlink a module with saving and restoring the previous install
93 lines • 4.25 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
Object.defineProperty(exports, "default", {
enumerable: true,
get: function() {
return linkModule;
}
});
var _fs = /*#__PURE__*/ _interop_require_default(require("fs"));
var _linkunlink = require("link-unlink");
var _lock = require("lock");
var _mkdirpclassic = /*#__PURE__*/ _interop_require_default(require("mkdirp-classic"));
var _path = /*#__PURE__*/ _interop_require_default(require("path"));
var _queuecb = /*#__PURE__*/ _interop_require_default(require("queue-cb"));
function _array_like_to_array(arr, len) {
if (len == null || len > arr.length) len = arr.length;
for(var i = 0, arr2 = new Array(len); i < len; i++)arr2[i] = arr[i];
return arr2;
}
function _array_without_holes(arr) {
if (Array.isArray(arr)) return _array_like_to_array(arr);
}
function _interop_require_default(obj) {
return obj && obj.__esModule ? obj : {
default: obj
};
}
function _iterable_to_array(iter) {
if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter);
}
function _non_iterable_spread() {
throw new TypeError("Invalid attempt to spread non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}
function _to_consumable_array(arr) {
return _array_without_holes(arr) || _iterable_to_array(arr) || _unsupported_iterable_to_array(arr) || _non_iterable_spread();
}
function _unsupported_iterable_to_array(o, minLen) {
if (!o) return;
if (typeof o === "string") return _array_like_to_array(o, minLen);
var n = Object.prototype.toString.call(o).slice(8, -1);
if (n === "Object" && o.constructor) n = o.constructor.name;
if (n === "Map" || n === "Set") return Array.from(n);
if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _array_like_to_array(o, minLen);
}
var lock = (0, _lock.Lock)();
function linkBin(src, binPath, nodeModules, binName, callback) {
var binFullPath = _path.default.join.apply(null, [
src
].concat(_to_consumable_array(binPath.split('/'))));
var destBin = _path.default.join(nodeModules, '.bin', binName);
_fs.default.stat(binFullPath, function(err) {
if (!err) return (0, _linkunlink.link)(binFullPath, destBin, callback);
console.log("bin not found: ".concat(binFullPath, ". Skipping"));
callback();
});
}
function worker(src, nodeModules, callback) {
lock([
src,
nodeModules
], function(release) {
callback = release(callback);
try {
var pkg = JSON.parse(_fs.default.readFileSync(_path.default.join(src, 'package.json'), 'utf8'));
var dest = _path.default.join.apply(null, [
nodeModules
].concat(_to_consumable_array(pkg.name.split('/'))));
(0, _mkdirpclassic.default)(_path.default.dirname(dest), function(err) {
if (err) return callback(err);
var queue = new _queuecb.default();
queue.defer(_linkunlink.link.bind(null, src, dest));
if (typeof pkg.bin === 'string') queue.defer(linkBin.bind(null, src, pkg.bin, nodeModules, pkg.name)); // single bins
else for(var binName in pkg.bin)queue.defer(linkBin.bind(null, src, pkg.bin[binName], nodeModules, binName)); // object of bins
queue.await(function(err) {
err ? callback(err) : callback(null, dest);
});
});
} catch (err) {
return callback(err);
}
});
}
function linkModule(src, nodeModules, callback) {
if (typeof callback === 'function') return worker(src, nodeModules, callback);
return new Promise(function(resolve, reject) {
return worker(src, nodeModules, function(err, restore) {
return err ? reject(err) : resolve(restore);
});
});
}
/* CJS INTEROP */ if (exports.__esModule && exports.default) { try { Object.defineProperty(exports.default, '__esModule', { value: true }); for (var key in exports) { exports.default[key] = exports[key]; } } catch (_) {}; module.exports = exports.default; }