mira
Version:
NearForm Accelerator for Cloud Native Serverless AWS
73 lines • 2.74 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const child_process_1 = __importDefault(require("child_process"));
const fs_1 = __importDefault(require("fs"));
const path_1 = __importDefault(require("path"));
/**
* ## ErrorLogger Class
* This class is used internally by Mira to log errors to an output file.
* The log files generated can be used to help debug deployment issues and use
* the output file name mira-errors-yyyymmddhhss.log.
* @packageDocumentation
*/
const dateformat_1 = __importDefault(require("dateformat"));
const util_1 = require("util");
/** @ignore - Excluded from documentation generation. */
const unlink = util_1.promisify(fs_1.default.unlink).bind(fs_1.default);
/** @ignore - Excluded from documentation generation. */
const readdir = util_1.promisify(fs_1.default.readdir).bind(fs_1.default);
/**
* A Mira support class for logging errors to an output file for later debugging.
*
* @internal
* @class ErrorLogger
*/
class ErrorLogger {
constructor() {
const d = dateformat_1.default(new Date(), 'yyyymmddhhss');
this.file = path_1.default.join(process.cwd(), `mira-errors-${d}.log`);
}
/**
* Flush messages to the output stream.
*/
async flushMessages(messages) {
// do not run if in AWS CodeBuild
if (undefined === process.env.CODEBUILD_BUILD_ID) {
const ws = fs_1.default.createWriteStream(this.file);
for (const message of messages) {
await new Promise((resolve) => (ws.write(message, resolve)));
}
ws.close();
}
}
/**
* Remove older Mira Error Log files
*/
async cleanMessages() {
const files = await readdir(process.cwd());
const promises = files
.filter((file) => {
return file.match(/mira-errors-\d{12}\.log$/);
})
.map(async (file) => {
return unlink(file).catch(() => Promise.resolve(() => {
// Windows fix, sometimes this will still generate a non-zero exit
// code but will also delete the file (intended action). Some
// Windows users may not have installed MiniGW / WSL and this will
// also fail.
try {
child_process_1.default.execSync(`rm -f ${file}`);
}
catch (e) {
// NOOP
}
}));
});
await Promise.all(promises);
}
}
exports.default = ErrorLogger;
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