constructor() {
        const subscriptions: Disposable[] = [];
        window.onDidChangeActiveTextEditor(Display.updateEditor, this, subscriptions);

        var config = workspace.getConfiguration('perforce');

        if(config && PerforceCommands.checkFolderOpened()) {
            if(config['editOnFileSave']) {
                workspace.onWillSaveTextDocument(e => {
                    e.waitUntil(this.onWillSaveFile(e.document));
                }, this, subscriptions);
            }
            
            if(config['editOnFileModified']) {
                workspace.onDidChangeTextDocument(this.onFileModified, this, subscriptions);
            }

            if(config['addOnFileCreate'] || config['deleteOnFileDelete']) {
                this._watcher = workspace.createFileSystemWatcher('**/*', false, true, false);

                if(config['addOnFileCreate']) {
                    this._watcher.onDidCreate(this.onFileCreated, this, subscriptions);
                }

                if(config['deleteOnFileDelete']) {
                    this._watcher.onDidDelete(this.onFileDeleted, this, subscriptions);
                }
            }
        }

        this._disposable = Disposable.from.apply(this, subscriptions);
    }

 //Sets up a file system watcher on HEAD so we can know when the current branch has changed
 private setupFileSystemWatcherOnHead(): void {
     let pattern: string = this._gitContext.GitFolder + "/HEAD";
     let fsw:FileSystemWatcher = workspace.createFileSystemWatcher(pattern, true, false, true);
     fsw.onDidChange((uri) => {
         Logger.LogInfo("HEAD has changed, re-parsing GitContext object");
         this._gitContext = new GitContext(workspace.rootPath);
         Logger.LogInfo("CurrentBranch is: " + this._gitContext.CurrentBranch);
         this.refreshPollingItems();
     });
 }

    public doInit(indexInProgress: boolean) {
        console.log("Crane Initialised...");

        this.showIndexingStatusBarMessage();

        var statusBarItem: StatusBarItem = window.createStatusBarItem(StatusBarAlignment.Right);
        statusBarItem.text = Config.version;
        statusBarItem.tooltip = 'Crane (PHP Code-completion) version ' + Config.version;
        statusBarItem.show();

        var serverDebugMessage: NotificationType<{ type: string, message: string }> = { method: "serverDebugMessage" };
        Crane.langClient.onNotification(serverDebugMessage, message => {
            switch (message.type) {
                case 'info': Debug.info(message.message); break;
                case 'error': Debug.error(message.message); break;
                case 'warning': Debug.warning(message.message); break;
                default: Debug.info(message.message); break;
            }
        });

        var requestType: RequestType<any, any, any> = { method: "workDone" };
        Crane.langClient.onRequest(requestType, (tree) => {
            // this.projectBuilding = false;
            Crane.statusBarItem.text = '$(check) PHP File Indexing Complete!';
            // Load settings
            let craneSettings = workspace.getConfiguration("crane");
            Debug.info("Processing complete!");
            if (Config.showBugReport) {
                setTimeout(() => {
                    Crane.statusBarItem.tooltip = "Found a problem with the PHP Intellisense provided by Crane? Click here to file a bug report on Github";
                    Crane.statusBarItem.text = "$(bug) Found a PHP Intellisense Bug?";
                    Crane.statusBarItem.command = "crane.reportBug";
                    Crane.statusBarItem.show();
                }, 5000);
            } else {
                Crane.statusBarItem.hide();
            }
        });

        var types = Config.phpFileTypes;
        Debug.info(`Watching these files: {${types.include.join(',')}}`);

        var fsw: FileSystemWatcher = workspace.createFileSystemWatcher(`{${types.include.join(',')}}`);
        fsw.onDidChange(e => {
            workspace.openTextDocument(e).then(document => {
                if (document.languageId != 'php') return;
                Debug.info('File Changed: ' + e.fsPath);
                Crane.langClient.sendRequest({ method: 'buildObjectTreeForDocument' }, {
                    path: e.fsPath,
                    text: document.getText()
                });
            });
        });
        fsw.onDidCreate(e => {
            workspace.openTextDocument(e).then(document => {
                if (document.languageId != 'php') return;
                Debug.info('File Created: ' + e.fsPath);
                Crane.langClient.sendRequest({ method: 'buildObjectTreeForDocument' }, {
                    path: e.fsPath,
                    text: document.getText()
                });
            });
        });
        fsw.onDidDelete(e => {
            Debug.info('File Deleted: ' + e.fsPath);
            Crane.langClient.sendRequest({ method: 'deleteFile' }, {
                path: e.fsPath
            });
        });

        if (!indexInProgress) {
            // Send request to server to build object tree for all workspace files
            this.processAllFilesInWorkspace();
        }
    }