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server.ts
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164 lines (141 loc) · 4.72 KB
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/// <reference path="node.d.ts" />
/// <reference path="session.ts" />
namespace ts.server {
var nodeproto: typeof NodeJS._debugger = require('_debugger');
var readline: NodeJS.ReadLine = require('readline');
var path: NodeJS.Path = require('path');
var fs: typeof NodeJS.fs = require('fs');
var rl = readline.createInterface({
input: process.stdin,
output: process.stdout,
terminal: false,
});
class Logger implements ts.server.Logger {
fd = -1;
seq = 0;
inGroup = false;
firstInGroup = true;
constructor(public logFilename: string, public level: string) {
}
static padStringRight(str: string, padding: string) {
return (str + padding).slice(0, padding.length);
}
close() {
if (this.fd >= 0) {
fs.close(this.fd);
}
}
perftrc(s: string) {
this.msg(s, "Perf");
}
info(s: string) {
this.msg(s, "Info");
}
startGroup() {
this.inGroup = true;
this.firstInGroup = true;
}
endGroup() {
this.inGroup = false;
this.seq++;
this.firstInGroup = true;
}
loggingEnabled() {
return !!this.logFilename;
}
isVerbose() {
return this.loggingEnabled() && (this.level == "verbose");
}
msg(s: string, type = "Err") {
if (this.fd < 0) {
if (this.logFilename) {
this.fd = fs.openSync(this.logFilename, "w");
}
}
if (this.fd >= 0) {
s = s + "\n";
var prefix = Logger.padStringRight(type + " " + this.seq.toString(), " ");
if (this.firstInGroup) {
s = prefix + s;
this.firstInGroup = false;
}
if (!this.inGroup) {
this.seq++;
this.firstInGroup = true;
}
var buf = new Buffer(s);
fs.writeSync(this.fd, buf, 0, buf.length, null);
}
}
}
class IOSession extends Session {
constructor(host: ServerHost, logger: ts.server.Logger) {
super(host, Buffer.byteLength, process.hrtime, logger);
}
exit() {
this.projectService.log("Exiting...","Info");
this.projectService.closeLog();
process.exit(0);
}
listen() {
rl.on('line',(input: string) => {
var message = input.trim();
this.onMessage(message);
});
rl.on('close',() => {
this.exit();
});
}
}
interface LogOptions {
file?: string;
detailLevel?: string;
}
function parseLoggingEnvironmentString(logEnvStr: string): LogOptions {
var logEnv: LogOptions = {};
var args = logEnvStr.split(' ');
for (var i = 0, len = args.length; i < (len - 1); i += 2) {
var option = args[i];
var value = args[i + 1];
if (option && value) {
switch (option) {
case "-file":
logEnv.file = value;
break;
case "-level":
logEnv.detailLevel = value;
break;
}
}
}
return logEnv;
}
// TSS_LOG "{ level: "normal | verbose | terse", file?: string}"
function createLoggerFromEnv() {
var fileName: string = undefined;
var detailLevel = "normal";
var logEnvStr = process.env["TSS_LOG"];
if (logEnvStr) {
var logEnv = parseLoggingEnvironmentString(logEnvStr);
if (logEnv.file) {
fileName = logEnv.file;
}
else {
fileName = __dirname + "/.log" + process.pid.toString();
}
if (logEnv.detailLevel) {
detailLevel = logEnv.detailLevel;
}
}
return new Logger(fileName, detailLevel);
}
// This places log file in the directory containing editorServices.js
// TODO: check that this location is writable
var logger = createLoggerFromEnv();
var ioSession = new IOSession(ts.sys, logger);
process.on('uncaughtException', function(err: Error) {
ioSession.logError(err, "unknown");
});
// Start listening
ioSession.listen();
}