@kangc/skywalking-backend-js
Version:
The NodeJS agent for Apache SkyWalking
116 lines • 4.97 kB
JavaScript
;
/*!
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var fs = tslib_1.__importStar(require("fs"));
var path = tslib_1.__importStar(require("path"));
var logging_1 = require("../logging");
var semver = tslib_1.__importStar(require("semver"));
var AgentConfig_1 = tslib_1.__importDefault(require("../config/AgentConfig"));
var logger = logging_1.createLogger(__filename);
var topModule = module;
while (topModule.parent) {
var filename = topModule.filename;
topModule = topModule.parent;
if (filename.endsWith('/skywalking-nodejs/lib/index.js'))
// stop at the appropriate level in case app is being run by some other framework
break;
}
var PluginInstaller = /** @class */ (function () {
function PluginInstaller() {
var _this = this;
this.require = topModule.require.bind(topModule);
this.resolve = function (request) { return module.constructor._resolveFilename(request, topModule); };
this.isBuiltIn = function (module) { return _this.resolve(module) === module; };
this.checkModuleVersion = function (plugin) {
var _a;
try {
if (_this.isBuiltIn(plugin.module)) {
return {
version: '*',
isSupported: true,
};
}
}
catch (_b) {
// module not found
return {
version: 'not found,',
isSupported: false,
};
}
var version = null;
try {
var packageJsonPath = _this.resolve(plugin.module + "/package.json");
version = _this.require(packageJsonPath).version;
}
catch (e) {
version = (_a = plugin.getVersion) === null || _a === void 0 ? void 0 : _a.call(plugin, _this);
}
if (!semver.satisfies(version, plugin.versions)) {
logger.info("Plugin " + plugin.module + " " + version + " doesn't satisfy the supported version " + plugin.versions);
return {
version: version,
isSupported: false,
};
}
return {
version: version,
isSupported: true,
};
};
this.isPluginEnabled = function (name) { return !name.match(AgentConfig_1.default.reDisablePlugins); };
this.pluginDir = path.resolve(__dirname, '..', 'plugins');
}
PluginInstaller.prototype.install = function () {
var _this = this;
fs.readdirSync(this.pluginDir)
.filter(function (file) { return !(file.endsWith('.d.ts') || file.endsWith('.js.map')); })
.forEach(function (file) {
if (file.replace(/(?:Plugin)?\.js$/i, '').match(AgentConfig_1.default.reDisablePlugins)) {
logger.info("Plugin " + file + " not installed because it is disabled");
return;
}
var plugin;
var pluginFile = path.join(_this.pluginDir, file);
try {
plugin = _this.require(pluginFile).default;
var _a = _this.checkModuleVersion(plugin), isSupported = _a.isSupported, version = _a.version;
if (!isSupported) {
logger.info("Plugin " + plugin.module + " " + version + " doesn't satisfy the supported version " + plugin.versions);
return;
}
logger.info("Installing plugin " + plugin.module + " " + plugin.versions);
plugin.install(_this);
}
catch (e) {
if (plugin) {
logger.error("Error installing plugin " + plugin.module + " " + plugin.versions);
}
else {
logger.error("Error processing plugin " + pluginFile);
}
}
});
};
return PluginInstaller;
}());
exports.default = PluginInstaller;
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