@reactant/context
Version:
198 lines (151 loc) • 17.5 kB
JavaScript
"use strict";
require("core-js/modules/es.symbol");
require("core-js/modules/es.array.filter");
require("core-js/modules/es.array.find");
require("core-js/modules/es.array.for-each");
require("core-js/modules/es.array.includes");
require("core-js/modules/es.array.index-of");
require("core-js/modules/es.function.name");
require("core-js/modules/es.object.assign");
require("core-js/modules/es.object.get-own-property-descriptor");
require("core-js/modules/es.object.get-own-property-descriptors");
require("core-js/modules/es.object.keys");
require("core-js/modules/es.object.to-string");
require("core-js/modules/es.regexp.to-string");
require("core-js/modules/es.string.includes");
require("core-js/modules/web.dom-collections.for-each");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _nodeSigar = _interopRequireDefault(require("node-sigar"));
var _fsExtra = _interopRequireDefault(require("fs-extra"));
var _path = _interopRequireDefault(require("path"));
var _pkgDir = _interopRequireDefault(require("pkg-dir"));
var _nodePstree = _interopRequireDefault(require("node-pstree"));
var _flatted = require("flatted");
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }
function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
var rootPath = _pkgDir.default.sync(process.cwd()) || process.cwd();
var sigar = new _nodeSigar.default();
var State = /*#__PURE__*/function () {
function State() {
var _this = this;
var name = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'state';
var postprocess = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : function (state) {
return state;
};
_classCallCheck(this, State);
this.name = name;
this.postprocess = postprocess;
this._isMaster = void 0;
this._masterPid = void 0;
this._parentMasterPid = void 0;
this._state = void 0;
this.currentProcStarted = false;
this.projectName = 'reactant';
this.statePath = void 0;
this.stateDir = void 0;
process.on('SIGINT', function () {
return _this.finish();
});
process.on('SIGTERM', function () {
return _this.finish();
});
if (_fsExtra.default.pathExistsSync(_path.default.resolve(rootPath, 'package.json'))) {
this.stateDir = _path.default.resolve(rootPath, 'node_modules/.tmp', this.projectName, this.masterPid.toString());
} else {
this.stateDir = _path.default.resolve('/tmp', this.projectName, this.masterPid.toString());
}
this.statePath = _path.default.resolve(this.stateDir, 'state.json');
if (this.currentProcStarted) return this;
this.currentProcStarted = true;
if (this.isStarted) return this;
_fsExtra.default.mkdirsSync(this.stateDir);
_fsExtra.default.writeFile(this.statePath, (0, _flatted.stringify)({
master: {
pid: process.pid
}
}));
}
_createClass(State, [{
key: "getParentMasterPid",
value: function getParentMasterPid() {
var _psTree, _psTree$parents$find;
if (typeof this._parentMasterPid !== 'undefined') return this._parentMasterPid;
this._parentMasterPid = ((_psTree = (0, _nodePstree.default)(process.pid)) === null || _psTree === void 0 ? void 0 : (_psTree$parents$find = _psTree.parents.find(function (procNode) {
return procNode.args.find(function (arg) {
return arg.indexOf('@reactant/cli/bin.js') > -1;
});
})) === null || _psTree$parents$find === void 0 ? void 0 : _psTree$parents$find.pid) || null;
return this._parentMasterPid;
}
}, {
key: "processAlive",
value: function processAlive(pid) {
return sigar.procList.includes(pid);
}
}, {
key: "finish",
value: function finish() {
try {
_fsExtra.default.removeSync(this.statePath); // eslint-disable-next-line no-empty
} catch (err) {}
}
}, {
key: "masterPid",
get: function get() {
if (typeof this._masterPid !== 'undefined') return this._masterPid;
var masterPid = this.getParentMasterPid();
this._masterPid = typeof masterPid === 'number' ? masterPid : process.pid;
return this._masterPid;
}
}, {
key: "isMaster",
get: function get() {
if (typeof this._isMaster !== 'undefined') return this._isMaster;
this._isMaster = typeof this.getParentMasterPid() !== 'number';
return this._isMaster;
}
}, {
key: "isStarted",
get: function get() {
return _fsExtra.default.existsSync(this.statePath) && this.processAlive(this.masterPid);
}
}, {
key: "state",
get: function get() {
if (this.isMaster) return this._state;
if (!_fsExtra.default.pathExistsSync(this.statePath)) return undefined;
return this.postprocess((0, _flatted.parse)(_fsExtra.default.readFileSync(this.statePath).toString()).state);
},
set: function set(state) {
var _this2 = this;
state = _objectSpread({}, state || {});
if (this.isStarted && !this.isMaster) {
throw new Error('must be master to set state');
}
if (typeof this._state === 'undefined') this._state = {};
Object.keys(this._state).forEach(function (key) {
// @ts-ignore
delete _this2._state[key];
});
Object.assign(this._state, state);
if (typeof state === 'undefined') {
_fsExtra.default.unlinkSync(this.statePath);
} else {
_fsExtra.default.writeFileSync(this.statePath, (0, _flatted.stringify)({
state: state
}));
}
}
}]);
return State;
}();
exports.default = State;
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Sigar from 'node-sigar';\nimport fs from 'fs-extra';\nimport path from 'path';\nimport pkgDir from 'pkg-dir';\nimport psTree, { ProcNode } from 'node-pstree';\nimport { parse, stringify } from 'flatted';\n\nconst rootPath = pkgDir.sync(process.cwd()) || process.cwd();\nconst sigar = new Sigar();\n\nexport default class State<\n  T = {\n    [key: string]: any;\n  }\n> {\n  _isMaster: boolean;\n\n  _masterPid: number;\n\n  _parentMasterPid: number | null;\n\n  _state: T;\n\n  currentProcStarted = false;\n\n  projectName = 'reactant';\n\n  statePath: string;\n\n  stateDir: string;\n\n  constructor(public name = 'state', public postprocess = (state: T) => state) {\n    process.on('SIGINT', () => this.finish());\n    process.on('SIGTERM', () => this.finish());\n    if (fs.pathExistsSync(path.resolve(rootPath, 'package.json'))) {\n      this.stateDir = path.resolve(\n        rootPath,\n        'node_modules/.tmp',\n        this.projectName,\n        this.masterPid.toString()\n      );\n    } else {\n      this.stateDir = path.resolve(\n        '/tmp',\n        this.projectName,\n        this.masterPid.toString()\n      );\n    }\n    this.statePath = path.resolve(this.stateDir, 'state.json');\n    if (this.currentProcStarted) return this;\n    this.currentProcStarted = true;\n    if (this.isStarted) return this;\n    fs.mkdirsSync(this.stateDir);\n    fs.writeFile(this.statePath, stringify({ master: { pid: process.pid } }));\n  }\n\n  getParentMasterPid(): number | null {\n    if (typeof this._parentMasterPid !== 'undefined')\n      return this._parentMasterPid;\n    this._parentMasterPid =\n      psTree(process.pid)?.parents.find((procNode: ProcNode) => {\n        return procNode.args.find((arg: string) => {\n          return arg.indexOf('@reactant/cli/bin.js') > -1;\n        });\n      })?.pid || null;\n    return this._parentMasterPid;\n  }\n\n  get masterPid(): number {\n    if (typeof this._masterPid !== 'undefined') return this._masterPid;\n    const masterPid = this.getParentMasterPid();\n    this._masterPid = typeof masterPid === 'number' ? masterPid : process.pid;\n    return this._masterPid;\n  }\n\n  get isMaster(): boolean {\n    if (typeof this._isMaster !== 'undefined') return this._isMaster;\n    this._isMaster = typeof this.getParentMasterPid() !== 'number';\n    return this._isMaster;\n  }\n\n  get isStarted() {\n    return fs.existsSync(this.statePath) && this.processAlive(this.masterPid);\n  }\n\n  get state(): T | undefined {\n    if (this.isMaster) return this._state;\n    if (!fs.pathExistsSync(this.statePath)) return undefined;\n    return this.postprocess(\n      parse(fs.readFileSync(this.statePath).toString()).state\n    );\n  }\n\n  set state(state: T | undefined) {\n    state = { ...(state || ({} as T)) };\n    if (this.isStarted && !this.isMaster) {\n      throw new Error('must be master to set state');\n    }\n    if (typeof this._state === 'undefined') this._state = {} as T;\n    Object.keys(this._state).forEach((key: string) => {\n      // @ts-ignore\n      delete this._state[key];\n    });\n    Object.assign(this._state, state);\n    if (typeof state === 'undefined') {\n      fs.unlinkSync(this.statePath);\n    } else {\n      fs.writeFileSync(this.statePath, stringify({ state }));\n    }\n  }\n\n  processAlive(pid: number) {\n    return sigar.procList.includes(pid);\n  }\n\n  finish() {\n    try {\n      fs.removeSync(this.statePath);\n      // eslint-disable-next-line no-empty\n    } catch (err) {}\n  }\n}\n"]}