Develop Reference

Highlighting files changed on a branch in Intellij IDEA Project section (similar to uncommitted changes)

In IntelliJ IDEA is there a way to highlight the files changed on a current branch (i.e. all files changed in your previous commits) in the project section?
Obviously the git/history tab can be used to see the files but it is pretty cumbersome as it opens the diff instead of the actual file.
It's nice to just be able to quickly see the files you've been working with show up a different colour. I usually hold off on committing my changes until I'm nearly finished on something just so I can easily see the files I've been working with recently.

See whether this works for you.
Open Git history, click one of the commit, then on the right page, right click and select "Edit Source", it will open all the files that were changed/updated/added on the Tab editor.

In IntelliJ IDEA is there a way to highlight the files changed on a current branch (i.e. all files changed in your previous commits) in the project section?
Currently, there is no option to set scope in Local Changes to a particular branch, please see and feel free to vote:
https://youtrack.jetbrains.com/issue/IDEA-161465

Why's the button "Commit" greyed out in Android Studio?

I want to commit my changes to my project to GitHub but for some reason, the "Commit" button is greyed out in Android Studio. I can't seem to spot what's causing this issue. Even when I write a message, it's still greyed out.
How would I fix this?

You have to make sure those files are blue (or green if new files). Hit Cancel, go back out to the app. Right click app at the top and goo down to git then add all. That will add all of them. Then, you will be able to commit and push your changes. However, you also need to make sure you click on the checkbox.

Add files you want to commit:
git add <file_name>
or to add all of them:
git add .
Commit files (using IDE or console - for now button should be active):
git commit -m "message"
Commit files using IDE - remember add message to commit

If there are files with red color mean you have not added them to git.
Right click on the file->Git->add
Then you can commits the changes.

Eclipse Debugger not following the source code

I have encountered a problem with the Eclipse and I am unsure how to fix it. When I enter the debugger and press the step over button the debugger usually highlights the line of source code that I stepped to. However, for some reason this is not working for me anymore. I enter the debugger and go to the breakpoint but if I hit the step button the source is not highlighted and if I continue to hit the step button I can see that the Debugger is stepping into other files (looking at the Thread) but my view of my code doesn't change. The only way I can find what line my Debugger is on is if I control click on the line from Debug tab and click Lookup Source which then highlights the line the Debug Current Construction pointer is on. If I am debugging I would like to follow this Current Construction pointer line by line. I must have accidentally altered this somehow and I am unsure how to change it back.
Simply stated the problem is this, usually the Eclipse Debugger highlights your source code as you step through it. It is not doing that for me anymore, the debugger is stepping properly but it is not highlighting the line of code that it is on.

This happens when we make Java code change in file, compiler creates a class but running server has a old copy of your class file.
Go with JRebel to get rid of such kind of issues.

This can also happen if you have more than one project in you work space, and you create a debug configuration that points at the wrong project base directory.
To resolve this:
Open your debug configuration list (Run -> Debug Configurations)
Select the proper configuration under your Remote Java Application list
Verify that you have the correct project source listed under the Base directory on the Main tab.
If you have the wrong directory selected (say, one that holds a different project), the debugger will start with no issues, but you will not be able to step through your code.

I had the same issue.
There was a workaround for that by right-clicking on associated callstack line in Debug view and selecting "Lookup Source". After that the current instruction line is (green) highlighted as usual. But I needed to do this after every debug step.
Rebuild all projects didn't help.
The solution:
Restart Eclipse and all works fine.

How to restore shelved changes in Intellij when the shelf tab is not shown?

I tried to use the "shelf" feature for the first time in IntelliJ IDEA today. I shelved all my current changes so that I could work on a quick bugfix, commit it, and come back to my current work afterwards.
When I commited the "shelf" action, IntelliJ created the shelf and I could see it in the tool window. Then it reverted, and reloaded the project.
Now the shelf tab in the Changes tool window does not appear any more.
However in the file system I can see the patch file under .idea/shelf.
Why ? I suspect the problem is that the .idea directory is itself under version control. So when I shelved the changes, it file was included in the shelved changes, and then it was reverted, and IntelliJ is not aware of the shelved changes any more.
I am using Git.
How can I make IntelliJ aware of the patch file in the change tool window ? Or if impossible how can I restore these changes based on the patch file only ?
And how to use this feature in the future without encountering this problem ?
Is it a bad practice to keep the .idea directory in te VCS ?

The answer to the
How can I make IntelliJ aware of the patch file in the change tool
window ?
question was :
Create a bogus shelved change so that the "shelf" tab is available. It will not show if there are currently no shelved changes.
Right click in the "shelf" tab, select "import patch file", pick the previously create patch file. This creates the "shelf"
You can now "unshelf" the changes normally
Finally, I had to manually merge the workspace.xml file. After this, I think I will think about stopping to commit IDE project files to VCS. At least when it is a trivial task to recreate the IDE project from e.g. a checked out Maven project.

If you are ever lose the Shelf tab in a Jetbrains IDE, you may have shelved too large of a file (a 1.81 GB .patch in my case). You can view all of your patches in the Jetbrains shelf by going to:
/.idea/shelf
Delete the really large patch file and restart the IDEA and the Shelf tab reappears on the Git area .
If you don't see your .idea folder in your IDE, follow these steps:
Help > Find Action...
Search "Registry" and click the found action
In the Registry search "dot.idea" and uncheck the checkbox in the Value column for the projectView.hide.dot.idea Key

I had similar issues, but shelving bogus changes did not help (was using WebStorm, but the underlaying IDE is the same). The shelf window did not show up no matter what I did. Even though the shelved changes were created in the .idea/shelf folder. What actually in the end helped was moving/deleting .idea folder under the project completely (good to backup before deletion). And restarting JetBrains IDE.

For anyone (like me) still running into this issue:
The shelf tab is most likely there, but not displayed due to the width of the commit tab.
In the top right of the commit tab there are 3 icons:
arrow down
cogwheel
minimize
On the ARROW DOWN you see all the "hidden" tabs, which includes the tab "Shelf" for me.
Or you make the commit tab wider then you should also see the tabs at the top.

Can't commit to Subversion from NetBeans

When I change some interface things in Java, like the contents of a menu item, and save them, the commit option does not enable. NetBeans does not know that changes have been produced so I cannot commit them. How can I commit them?

Can you commit from the console?
try svn stat in the root directory of your project, that should show you the files that have been modified with an M near the name of the file. if you can see them, run svn ci to commit all changes.
Maybe (and just maybe), svn is ignoring those files on purpose, to check if this is true, run from the console svn propedit svn:ignore .(<- this dot is necesary) in your project root to check if that directory/file/file extension is being ignored.
Good luck!

Are you using Netbeans 6 or higher? If not, you need to tell Netbeans where the svn executable is (see the link and the associated FAQ).
Are you sure that your subversion repository is running on a machine that is in sync with your workstation's view of the current time (e.g., synch-ed via ntp)? If the time is enough out of sync, it's possible that the subversion module is missing the update and, therefore, not flagging the change.
Also, you should check to make sure that you have an active valid connection to the subversion repository. You can easily do this for the file you just edited: right click on the editor tab for that file and choose Subversion -> Diff or Show Changes or Search History. If any of those fail, your IDE has lost its connection to SVN for some reason.
Another possibility is that you didn't succeed with a real checkout: if the .svn subdirectories aren't properly configured, the menu item will definitely be disabled. I would recommend that you right click on the project (under Projects) and try Show Changes. If that doesn't succeed, you don't have a valid Subversion checkout and the Netbeans options definitely won't work.

If for whatever reason netbeans isn't allowing you to commit, I would suggest either doing it from the commandline, or using a program like TortoiseSVN

It is Subversion's responsibility to know what has changed since the last commit/update. If NetBeans' Subversion interface doesn't allow to commit, then it may be a bug in Netbeans. Technically, there should be no reason to disable commit button - Subversion doesn't prevent you from committing even if nothing has been changed.

Right Click the file which is marked as red color, select resolve confilcts
and try to commit now...