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javaServerStarter.ts
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133 lines (120 loc) · 4.28 KB
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import { window, commands, WorkspaceConfiguration, workspace } from 'vscode'
import { StreamInfo } from 'vscode-languageclient';
import { createClientPipeTransport } from 'vscode-jsonrpc';
import * as requirements from './requirements';
import * as path from 'path';
import * as fs from 'fs';
import * as net from 'net';
import { Commands } from './commands';
const glob = require('glob');
declare var v8debug;
const DEBUG = (typeof v8debug === 'object') || startedInDebugMode();
let electron = require('./electron_j');
export function awaitServerConnection(port): Thenable<StreamInfo> {
let addr = parseInt(port);
return new Promise((res, rej) => {
let server = net.createServer(stream => {
server.close();
console.log('JDT LS connection established on port ' + addr);
res({ reader: stream, writer: stream });
});
server.on('error', rej);
server.listen(addr, () => {
server.removeListener('error', rej);
console.log('Awaiting JDT LS connection on port ' + addr);
});
return server;
});
}
export function runServer(workspacePath, javaConfig): Thenable<StreamInfo> {
return requirements.resolveRequirements().catch(error => {
//show error
window.showErrorMessage(error.message, error.label).then((selection) => {
if (error.label && error.label === selection && error.openUrl) {
commands.executeCommand(Commands.OPEN_BROWSER, error.openUrl);
}
});
// rethrow to disrupt the chain.
throw error;
}).then(requirements => {
return new Promise<StreamInfo>(function (resolve, reject) {
let child = path.resolve(requirements.java_home + '/bin/java');
let params = prepareParams(requirements, javaConfig, workspacePath);
if (!params) {
return reject('Can not determine Java launch parameters for server');
}
console.log('Executing ' + child + ' ' + params.join(' '));
electron.fork(child, params, {}, function (err, result) {
if (err) { return reject(err); }
if (result) { return resolve(result); }
});
});
});
}
function prepareParams(requirements, javaConfiguration, workspacePath) {
let params = [];
if (DEBUG) {
params.push('-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=1044');
// suspend=y is the default. Use this form if you need to debug the server startup code:
// params.push('-agentlib:jdwp=transport=dt_socket,server=y,address=1044');
}
if (requirements.java_version > 8) {
params.push('--add-modules=ALL-SYSTEM');
params.push('--add-opens');
params.push('java.base/java.util=ALL-UNNAMED');
params.push('--add-opens');
params.push('java.base/java.lang=ALL-UNNAMED');
}
params.push('-Declipse.application=org.eclipse.jdt.ls.core.id1');
params.push('-Dosgi.bundles.defaultStartLevel=4');
params.push('-Declipse.product=org.eclipse.jdt.ls.core.product');
if (DEBUG) {
params.push('-Dlog.protocol=true');
params.push('-Dlog.level=ALL');
}
let vmargs = javaConfiguration.get('jdt.ls.vmargs', '');
parseVMargs(params, vmargs);
let server_home: string = path.resolve(__dirname, '../../server');
let launchersFound: Array<string> = glob.sync('**/plugins/org.eclipse.equinox.launcher_*.jar', { cwd: server_home });
if (launchersFound.length) {
params.push('-jar'); params.push(path.resolve(server_home, launchersFound[0]));
} else {
return null;
}
//select configuration directory according to OS
let configDir = 'config_win';
if (process.platform === 'darwin') {
configDir = 'config_mac';
} else if (process.platform === 'linux') {
configDir = 'config_linux';
}
params.push('-configuration'); params.push(path.resolve(__dirname, '../../server', configDir));
params.push('-data'); params.push(workspacePath);
return params;
}
function startedInDebugMode(): boolean {
let args = (process as any).execArgv;
if (args) {
return args.some((arg) => /^--debug=?/.test(arg) || /^--debug-brk=?/.test(arg));
};
return false;
}
//exported for tests
export function parseVMargs(params: any[], vmargsLine: string) {
if (!vmargsLine) {
return;
}
let vmargs = vmargsLine.match(/(?:[^\s"]+|"[^"]*")+/g);
if (vmargs === null) {
return;
}
vmargs.forEach(arg => {
//remove all standalone double quotes
arg = arg.replace(/(\\)?"/g, function ($0, $1) { return ($1 ? $0 : ''); });
//unescape all escaped double quotes
arg = arg.replace(/(\\)"/g, '"');
if (params.indexOf(arg) < 0) {
params.push(arg);
}
});
}