{
  "version": 3,
  "sources": ["../../lib/repl.ts"],
  "sourcesContent": ["/**\n * REPL\n *\n * Documented in logs/repl/README.md\n * https://github.com/smogon/pokemon-showdown/blob/master/logs/repl/README.md\n *\n * @author kota\n * @license MIT\n */\n\nimport * as fs from 'fs';\nimport * as net from 'net';\nimport * as path from 'path';\nimport * as repl from 'repl';\nimport { crashlogger } from './crashlogger';\nimport { FS } from './fs';\ndeclare const Config: any;\n\nexport const Repl = new class {\n\t/**\n\t * Contains the pathnames of all active REPL sockets.\n\t */\n\tsocketPathnames = new Set<string>();\n\n\tlistenersSetup = false;\n\n\tsetupListeners(filename: string) {\n\t\tif (Repl.listenersSetup) return;\n\t\tRepl.listenersSetup = true;\n\t\t// Clean up REPL sockets and child processes on forced exit.\n\t\tprocess.once('exit', code => {\n\t\t\tfor (const s of Repl.socketPathnames) {\n\t\t\t\ttry {\n\t\t\t\t\tfs.unlinkSync(s);\n\t\t\t\t} catch {}\n\t\t\t}\n\t\t\tif (code === 129 || code === 130) {\n\t\t\t\tprocess.exitCode = 0;\n\t\t\t}\n\t\t});\n\t\tif (!process.listeners('SIGHUP').length) {\n\t\t\tprocess.once('SIGHUP', () => process.exit(128 + 1));\n\t\t}\n\t\tif (!process.listeners('SIGINT').length) {\n\t\t\tprocess.once('SIGINT', () => process.exit(128 + 2));\n\t\t}\n\t\t(global as any).heapdump = (targetPath?: string) => {\n\t\t\tif (!targetPath) targetPath = `${filename}-${new Date().toISOString()}`;\n\t\t\tlet handler;\n\t\t\ttry {\n\t\t\t\thandler = require('node-oom-heapdump')();\n\t\t\t} catch (e: any) {\n\t\t\t\tif (e.code !== 'MODULE_NOT_FOUND') throw e;\n\t\t\t\tthrow new Error(`node-oom-heapdump is not installed. Run \\`npm install --no-save node-oom-heapdump\\` and try again.`);\n\t\t\t}\n\t\t\treturn handler.createHeapSnapshot(targetPath);\n\t\t};\n\t}\n\n\t/**\n\t * Delete old sockets in the REPL directory (presumably from a crashed\n\t * previous launch of PS).\n\t *\n\t * Does everything synchronously, so that the directory is guaranteed\n\t * clean and ready for new REPL sockets by the time this function returns.\n\t */\n\tcleanup() {\n\t\tconst config = typeof Config !== 'undefined' ? Config : {};\n\t\tif (!config.repl) return;\n\n\t\t// Clean up old REPL sockets.\n\t\tconst directory = path.dirname(\n\t\t\tpath.resolve(FS.ROOT_PATH, config.replsocketprefix || 'logs/repl', 'app')\n\t\t);\n\t\tlet files;\n\t\ttry {\n\t\t\tfiles = fs.readdirSync(directory);\n\t\t} catch {}\n\t\tif (files) {\n\t\t\tfor (const file of files) {\n\t\t\t\tconst pathname = path.resolve(directory, file);\n\t\t\t\tconst stat = fs.statSync(pathname);\n\t\t\t\tif (!stat.isSocket()) continue;\n\n\t\t\t\tconst socket = net.connect(pathname, () => {\n\t\t\t\t\tsocket.end();\n\t\t\t\t\tsocket.destroy();\n\t\t\t\t}).on('error', () => {\n\t\t\t\t\tfs.unlinkSync(pathname);\n\t\t\t\t});\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Starts a REPL server, using a UNIX socket for IPC. The eval function\n\t * parametre is passed in because there is no other way to access a file's\n\t * non-global context.\n\t */\n\tstart(filename: string, evalFunction: (input: string) => any) {\n\t\tconst config = typeof Config !== 'undefined' ? Config : {};\n\t\tif (!config.repl) return;\n\n\t\t// TODO: Windows does support the REPL when using named pipes. For now,\n\t\t// this only supports UNIX sockets.\n\n\t\tRepl.setupListeners(filename);\n\n\t\tconst server = net.createServer(socket => {\n\t\t\trepl.start({\n\t\t\t\tinput: socket,\n\t\t\t\toutput: socket,\n\t\t\t\teval(cmd, context, unusedFilename, callback) {\n\t\t\t\t\ttry {\n\t\t\t\t\t\treturn callback(null, evalFunction(cmd));\n\t\t\t\t\t} catch (e: any) {\n\t\t\t\t\t\treturn callback(e, undefined);\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t}).on('exit', () => socket.end());\n\t\t\tsocket.on('error', () => socket.destroy());\n\t\t});\n\n\t\tconst pathname = path.resolve(FS.ROOT_PATH, Config.replsocketprefix || 'logs/repl', filename);\n\t\ttry {\n\t\t\tserver.listen(pathname, () => {\n\t\t\t\tfs.chmodSync(pathname, Config.replsocketmode || 0o600);\n\t\t\t\tRepl.socketPathnames.add(pathname);\n\t\t\t});\n\n\t\t\tserver.once('error', (err: NodeJS.ErrnoException) => {\n\t\t\t\tserver.close();\n\t\t\t\tif (err.code === \"EADDRINUSE\") {\n\t\t\t\t\tfs.unlink(pathname, _err => {\n\t\t\t\t\t\tif (_err && _err.code !== \"ENOENT\") {\n\t\t\t\t\t\t\tcrashlogger(_err, `REPL: ${filename}`);\n\t\t\t\t\t\t}\n\t\t\t\t\t});\n\t\t\t\t} else if (err.code === \"EACCES\") {\n\t\t\t\t\tif (process.platform !== 'win32') {\n\t\t\t\t\t\tconsole.error(`Could not start REPL server \"${filename}\": Your filesystem doesn't support Unix sockets (everything else will still work)`);\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\tcrashlogger(err, `REPL: ${filename}`);\n\t\t\t\t}\n\t\t\t});\n\n\t\t\tserver.once('close', () => {\n\t\t\t\tRepl.socketPathnames.delete(pathname);\n\t\t\t});\n\t\t} catch (err) {\n\t\t\tconsole.error(`Could not start REPL server \"${filename}\": ${err}`);\n\t\t}\n\t}\n};\n"],
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