This may be a too broad question but how would you develop a simple web-based IDE/editor? For a lecture I was thinking of a simple editor where you could enter some sort of code, press compile and then display the results, error messages etc. in some way.
Does anyone knows some examples (with source code maybe), or any suggestions on how to do this conceptually?
Or you could try http://codepad.org/
You might also be interested in taking a look at the very new Eclipse Orion project, in particular the architecture overview: http://wiki.eclipse.org/Orion/Architecture
Koding provides a framework for you to develop html5 applications with access to a real Ubuntu VM with Root. The idea for this post, being that you can develop an IDE that works with Client and Server languages, without having to deal with security of giving people access to machines that you are hosting. Security is hard with machines and avoiding exploits
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I am trying to build a desktop app.
I am thinking of using electron on the recommendation of a web-developer friend of mine, but as I am the only sole developer, I don't have the means to test the software on different platforms(OS, hardware etc.).So I am anticipating that this will cause a problem later, in the end, to test/debug software on different platforms and different OS.
I have ruled out web-apps because of some privacy concerns of the users for the remote data hosting.
Software is pretty lightweight and is almost equivalent to the image viewer apps with some slight modifications.
How to solve the problem of variations of different platforms?
Any literature suggestions pointing me in the general direction are also welcome.
Sometimes it helps to think of Electron as two processes.
The renderer vs the main processes. Generally the renderer process which runs the HTML/CSS/JS is it's own isolated component, and you communicate to the main process using IPC.
So generally for the UI, you can use mostly any web based testing framework to test reliability. At Amna, for example, we use Cypress as our E2E testing platform. You an also use something like QAWolf. Both should work with localhost. In general, most website testing tools should work fine, and consistently across platforms.
Where this gets tricky is when a UI functionality makes a call to the OS or the main process. For example, saving to the disk, or launching a program.
The general flow is this, and I've yet to find radically simpler options:
Set-Up a VM or buy a machine with the corresponding OS. I used Spot VMs in Azure for this.
Manually test the scenarios you care about in each VM before you ship
If you have a lot of cases that rely on the OS, then you should be able to further optimize this by using an automated test runner like Spectron.
From experience, what I've realized is that most of the iterations I do happen more on the UI than the underlying functions with the cross-platform capabilities. And if your code has good separation (e.g. contextIsolation:true, nodeIntegration:false), it should be pretty obvious when you need to do an entire "cross-platform" test vs just UI tests.
I'm not familiar with a lot of large-scale electron testing frameworks, I do know that ToDesktop handles package building and generating binaries to perform a smoke test and verify things open across different operating systems.
It depends.
The answer depends on what you are building, so it makes sense to figure out what you actually want to build. Some questions you might ask yourself:
Do I need a database?
Do I need authentication?
Do I need portability?
Do I need speed to market?
Do I want to pick a language I'm familiar in?
These are all good questions and there are dozens more we all ask ourselves. However, back to your original question.
Electron is a fine choice
Yes, there are alternatives. But Electron is used for Visual Studio Code, Facebook Messenger, Microsoft Teams and Figma. Choosing Electron means there are other developers making apps and there are proven apps in the market so you don't have to worry about a dead ecosystem.
Electron is easy to onboard if you know web technologies, think js, html and css. If you know these, you can transfer your web dev knowledge and make a cross-platform app. You don't have to worry about learning each OS since the UI is the webpage which will look mostly* the same between each OS. (*some very minor differences, but essentially the same).
Cross-platform deployment is easy
There are a few ways of bringing your app to multiple platforms, I happen to be most familiar with electron-builder, but the other two solutions work as well.
Many templates to start with
I am biased, since I'm the author of secure-electron-template which is one of the many templates you can choose from when starting an app. However, I recently reviewed all Electron templates and found that only 4 do not have serious security vulnerabilities.
The Electron framework frequently is updated, and over the course of the past few years there has been a shift in the way Electron apps are made. Some earlier frameworks didn't have good secure defaults which some of the older Electron templates inherited and thus, aren't as secure as new frameworks that follow security guidelines.
If you decide on Electron, give my template a try. It's got a number of features I'm building out in order to help the community with features they might want (ie. internationalization (i18n), saving local data, custom context menus, page routing, e2e unit testing, and how one can use license key validation, to name a few things).
I'm trying to find a decent standalone webserver that I can load up on a jump drive.
My wife is a photographer, and I'd like to present the clients with their images on usb. When they plug it in, I'd like a web page to load up, and run some jQuery magic to show them a nice carousel of all there images.
So far, this is all fine since it can all be done client side and doesn't need a server at all.
The problem I'm facing is that I'd like some server-side code to be able to read the images out of the directory so that once the interface is built, I don't need to manually create all of the <img /> tags.
If it was primarily going to be used in a Windows environment, I'd have no problem going with IIS Express, since I'm mainly a .NET MVC developer and this would be perfect for me... However, the fact of the matter is that a large amount of our client base is also OS X users.
I did find this Java one jlHttp, and I also found this thread here on SO, but I don't think I understand enough about either one of them to accomplish what I'm looking for.
Thanks in advance for your suggestions.
I'm looking for the same thing, and the two best options I've found were Flying Ant cd web server and Stunnix. Of the two, Flying Ant is cheaper, and I've tested it with success on my project.
I found Mongoose very convenient for this exact purpose. It's crossplatform, lightweight and requires minimum configuration. You may be interested in this project that uses Mongoose to display pictures in a folder tree or FTP directory.
How about Node.js
It says it runs on Linux, OS X, and Windows.
I have been looking around stackoverflow for automated GUI tools for testing our web app gui from a Business analyst point of view, so that means strictly requirements-record-playback kind of testing since we are not really programmers.
We have used selenium in the past but unfortunately it is no longer compatible with Firefox 4.
Is there a similar tool to selenium that allows recording and playback of GUI tests that does not require a lot or any scripting on a windows platform? thanks
You can use the FireFox add on compatibility reporter to get Selenium working on FF4
https://addons.mozilla.org/en-US/firefox/addon/add-on-compatibility-reporter/
Or alternatively drop down to FireFox 3.x and use that just for your testing!
For the server component Selenium-RC (necessary to execute tests), You must run Selenium-RC 2.0b3 (or higher if it become) to be compatible with Firefox 4. I have used it succesfully with FF4.
Selenium IDE, the recording tool, for firefox is indeed not available as a plugin for FF4 (but I speculate it will be coming soon).
I think that you can benefit from AutoIt (http://www.autoitscript.com/site/autoit/) I`d been using it to test Windows based GUI, but to the best of knowledge there are lot of scripts to test/play on-line games, thus it is applicable to Web Sites.
It does not require deep technical knowledge, but of course it will be much better and frequently mandatory to optimize the generated code. I`ve started my experience with this tool, and I was doing my work flawlessly.
At one company, I was developing automated tests for web app by means of TestPartner (Compuware company) it was one of the best tools Ive ever worked with, it generates VB code quite 'intelligently' and supports user with administration features. But Im not sure whether it is possible to use it without paying.
Good luck !
I use windows XP and R for my desktop use. And a shared hosting account (at some company) for my web hosting needs.
I wish to create an R web application and I understand that one such way is by using R with Apache through RApache , but since my current shared hosting plan doesn't allow me to install RApache I am a bit stuck.
So... (and here's my question) what would be the easiest/fastest/cost-effective way to get started?
Buying a more expensive hosting package ?
Hosting the thing myself? (on windows ?!)
switch to some other hosting company that permits the use of RApache?
Any suggestion will be most helpful.
Self-hosting is an option if you insist on using RApache. This might be easier than you think. Here's a link to a blog post i read a month ago before i decided to buy the hardware and server my own files. i just watched this seven minute YouTube video tutorial entitled "R Web Application–'Hello World' using RApache" I believe this was just posted today.
In seven minutes, the author walks through building a "hello world" Site using RApache then walks through a more ambitious example, building a user-input form to collect inputs then deliver them to a particular R function--pretty much a exemplary slice of what i suspect most people would want to use RApache for.
A second option is using a web framework. My recommendation here is Django. Why? It's written in Python so you can access R functionality via the python bindings (RPy2). Second, if you are not an experienced web developer, Django is in many ways, a great framework to begin with because it's truly a "full-stack" solution--it works more or less out of the box. In addition, there is a substantial and growing body of quality step-by-setp tutorials, code snippets, and even packaged django Sites, to learn from.
it seems they provide a VMWare image to get up and running quickly.
I suggest you download VMWare player and try the image. Since RApache isn't available for Windows, this is the most simple way, I guess. I wouldn't use that for hosting, but I would first try whether this stack is actually the right thing for your app. Also, this allows you testing things locally.
Doug,
Should I read your suggestion as saying that a Django app can call the RPy2 functionality without RApache? If so, that sounds like a solution for folks on shared hosting who can't install the RAPache module.
What is the most painless and multi-platform way to use scripting?...
...for things such as
Compilation
Web application deployment
Web server controlling
Other misc. tasks around web servers...
NOTE: I'm in the Java ecosystem.
Sure, there is Apache Ant, which is pretty multi-platform, but
it isn't scripting.
Depends entirely on what environment you're working in.
For Java you can either use the JavaScript ScriptEngine that ships with the Sun JDK.
Alternatively you could use Groovy, which is a separate download but works on all modern JREs.
For general scripting I'd personally choose Python, because it's available almost everywhere and reasonably compact, while being an awsome language.
The only scripting environment that you'll find on almost all computers these days (no mater what OS/Hardware) is a JavaScript engine. But usually that's confined to the browser and doesn't really allow interaction with anything outside the browser.
I recall reading that Java and Javascript are not not related - so Joachim Sauer's answer puzzles me...
Meanwhile, the original question lists compilation; web application deployment; web server controlling and other misc tasks around web servers.
That's a very broad spectrum, but then the question wasn't 'which the best scripting language?' but 'What is the most painless and multi-platform way to use scripting?' which is not necessarily the same thing.
As BerggreenDK said 'can you elaborate?'