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Category: Source Control

Using Xojo and GitHub

Now that Xojo Lite includes support for saving projects in version control format, it seems like a good time to revisit how you can use Xojo with GitHub, the popular online Git hosting service.

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Version Control Ready Xojo Lite and Free Xojo Linux Lite for Everyone

Today we are pleased to announce some big changes to Xojo Lite. Beginning with Xojo 2024r1, new and existing Xojo Lite licenses are version control ready. That’s not all, now you can use Xojo’s free IDE to build Linux desktop and console apps from Linux, macOS, or Windows, no license required.

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Using Subversion Externals
with Xojo Text Projects

A topic that comes up every once in a while on the forums is how to share code among several projects with more than one developer. Quite often what users try to do is to export classes and modules to a shared folder and have everyone include those in their projects. There can be issues with this technique, especially when using shared services like DropBox.

Because of the latency involved, external items shared in a shared folder on a server or a file sharing service are never truly in-sync with one another. While this technique works with a single developer across two or three projects, it gets more and more complicated as you add more projects and even more-so if you try to add more developers.

One of the largest issues with this type of system is that everything must be kept in sync all the time. Making one little change to a shared file or method which works fine in the current project could completely break a project that you haven’t worked on in a year. When you do get around to working on it again, there’s three possibilities:

  1. The project compiles and everything works just like it did before.
  2. The project doesn’t compile.
  3. The project compiles and doesn’t work like it did before.

With careful planning, you’ll probably hit #1 75% of the time, but the other two are wrought with problems. If the project compiles but doesn’t work correctly, you may not find out until you’ve given it to your users, with the worst case being unrecoverable data corruption. If it doesn’t compile, then what? The shared code is now required to be different in two different projects and you may have no history as to what was changed.

Thankfully the folks at who are maintaining Subversion at the Apache Software Foundation made it super easy to create shared code repositories using a feature called Externals. (For those of you that are using Git, I suggest looking into Submodules. Of the two techniques I’ve encountered, Submodules seem to require the least individual overhead.)

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