Eclipse: On Save execute a program - eclipse

I have recently come across the LESS Leaner CSS a template engine for CSS based on ruby. The idea sounded neat, but in practice we need to compile the program to get CSS. This is cumbersome as we make too many changes while working on CSS and for every edit we don't want to compile.
In Eclipse, there are "Save-Actions" but it handles only formatting changes.
Is there a way on saving the file in Eclipse, to call or trigger the compilation?
Its easy to do this in Vi or Emacs.

I think all you need is to define a custom Builder for your project. That way, you can run a program or an ant script whenever certain files change.
Right click on the project -> Properties -> Builders -> New

While the Builders are a good solution, keep in mind they only work when a build is issued - either using auto-build or using a manual build which is invoked, well, manually. If you are looking for something that will operate after a save, regardless of the auto-build state you will need to write a plugin which listens to resource changes in Eclipse.
You do that by creating a workspace change listener and installing it like that:
ResourcesPlugin.getWorkspace().addResourceChangeListener(
..., IResourceChangeEvent.POST_CHANGE);
I'm sure you can take it from here :-)

Related

Eclipse keybindings. Setting up a shortcut for executing a specific run configuration

I'm trying to setup a key binding in Eclipse to directly execute a background Java file. My file is called CodeChecker.java and it's sufficient for my purposes to run the main method without any arguments. I need to run it repeatedly and so I'm trying to setup a shortcut key to run it directly without having to bring up the Run... menu or having to bring up the file itself.
As far as I'm aware Eclipse is not able to offer this functionality directly. I've tried using a plugin called Practically Macro according to this answer Assigning a keyboard shortcut for a specific Eclipse build configuration. But this answer is horribly out of date and doesn't work any longer.
So I'm wondering if Practically Macro can still be used to achieve this? Any other solution, plugin, script or otherwise would be equally welcome.

does a "fake folder structure" Extension exist in VSCode

As an avid user of processing in my spare time, I often find myself writing more than 10 classes in a project, which of course overflows the class bar at the top of the processing IDE and makes it hard to work on all the classes in a project. The solution in any other language is to create class libraries (.net), packages (java), etc. which is not possible from within the processing IDE (It just won't accept .pde files in subfolders).
I tried using Eclipse and importing processing but it makes everything a little more messy as you have to extend Papplet and pass it in to every class that you create and then you have to say parent.rect() or something similar when you want to use Papplet methods which is just one step more than I am willing to go on every new project.
Now, I often use processing from VSCode since i prefer the IDE and i can still compile and debug just as easy from VSCode as Processing IDE, and one day i thought to myself, what if, rather than that horrible solution of using Eclipse, I have the following:
All .pde files are in the one directory (just how processing wants it) but I have an extension for VSCode that takes my files and displays them as if they were in folders within VSCode, There are no changes to the file structure, only the way they are visible to me within the IDE, this way I can comfortably see each of my files and manage larger projects!
So the project folder would look like This in file explorer
But would look like This in VSCode
So finally, my question is -> Is there some sort of extension that I can get that will do this, if not, any suggestions on where i should start in creating one?

Package development for Sublime Text 2 with multiple files without restarting

I am developing a couple of packages for sublime text, and to avoid copy and pasting massive amounts of code I began to move my classes into separate files. I have been avoiding this so far, since, in my current workflow, changes to files that are not in the main plugin file won't get updated when saved and only go into effect when I restart sublime.
Is there a way to reload a package, including all it's files, without restarting Sublime Text?
You don't actually have to restart the editor. You will have to restructure your plugins though to take advantage of this. Essentially, you can load the plugin files from some top level file. As an example, take a look at Package Control. I also do it in PersistentRegexHighlight (though the package control solution is likely more robust (I did base it on that). Still not as good as simply saving a particular file, but better than restarting! In fact, you could probably tie into the on_post_save event to automatically save the top level file when you modify a child file.
I personally found the easiest solution was to install Package Reloader, and just put a new file in the top directory of my plugin named .build. Save your top-level plugin file and enjoy not having to restart.
Virtually no restructuring of code required.
From the unofficial docs:
Sublime Text will reload top-level Python modules from packages as they change (perhaps because you are editing a .py file). By contrast, Python subpackages won’t be reloaded automatically, and this can lead to confusion while you’re developing plugins. Generally speaking, it’s best to restart Sublime Text after you’ve made changes to plugin files, so all changes can take effect.
Unfortunately, plugins are not loaded into a scope visible from the console (Ctrl`), so you can't just reload() it. EDIT But, you can call reload() from within your top-level plugin file, as detailed in #skuroda's answer.
You'll have to make the decisions on when to break classes out into separate files vs. keeping them together in one monolithic collection. Having 50 files, each with only two or three function definitions is overkill in one direction, while having 20 classes each with 10 or 15 methods all in one file is going overboard in the other, so just do what feels best for the particular project. In my experience killing/restarting ST2 doesn't take too long in any of the supported operating systems (except on XP, for some reason...), so hopefully it's not too much of a delay on your workflow. One suggestion I'd give is to create a portable installation (if you're on Windows) with just the bare essentials in extra plugins if your startup time is too long.
Good luck!

Run eclipse editor action on entire project

Question:
Is there a way to run an eclipse action that is available from the context menu in the editor on every file of an project.
Actual Case:
I have to work with the leon3 and my dull mind has trouble enough understanding the code, that I do not want to scan lines to see if there is a semicolon hidden in there to see if there are multiple instructions or if the end if happens to be behind another instruction rather than on a line of its own (I missed an end if, which caused me to think that statements were conditional,...), therefore I would like to format the source nicely. I have access to Sigasi PRO which offers the option to "beautify" code as an operation in the editor. I would like to run this operation on all files in the leon project automatically.
Sigasi indeed only offers formatting in the editor at this time. In the Sigasi editor, you can format a selection or the entire editor's content. But, you can not trigger the formatting action without an editor.
I have not tried this, but I think you can achieve this with the Eclipse EASE project. EASE is a scripting environment for Eclipse.

How do I force Eclipse to rebuild if files in another project change (any change)?

I've got an Eclipse (Galileo) project (called ProguardBuilder) that runs Proguard over a set of class files in other projects and produces a jar file.
I'd like to have the ProguardBuilder project get rebuilt any time any class file in the other projects changes. AutoBuild doesn't do that; presumably it's smart enough to recognize and ignore any changes that don't affect anything externally visible.
My problem is that I don't care whether or not the change is visible, since I need to completely rebuild ProguardBuilder any time the class files it depends on change at all.
How do I tell Eclipse to do this sort of rebuild?
You might have to use an external builder. Check the documentation, because I've never done this. But the place to start is the "Builders" section of the project properties dialogue.