Don&#39;t know about 12, but there&#39;s the following setting in 13:

   *Settings → Editor → Strip trailing spaces on Save*

As of IntelliJ 2017.2 it&#39;s under

   *Settings → Editor → General → Strip trailing spaces on Save*

  ![configuration dialogue][1]


  [1]: https://i.stack.imgur.com/HUdlt.png

In 2020.1 IntelliJ version:

File -&gt; Settings -&gt; Editor -&gt; General -&gt; then scroll down to &#39;Save Files&#39;


[![Strip trailing spaces on Save option][1]][1]


  [1]: https://i.stack.imgur.com/e4MUD.png

Go to ==&gt; PREFERENCES | GENERAL | OTHER |

Just as shown in the picture:

 1. **Srip trailings spaces on Save: ALL**
 2. **Uncheck** Allways keep....


It&#39;ll remove trailing spaces **when save, not before**



 [![enter image description here][1]][1]


  [1]: https://i.stack.imgur.com/WZeeP.png

Add an external tool. As the Program pass `/usr/bin/sed` (may be different on your box, run `which sed` to locate) and insert the `-i &#39;s/[[:space:]]\+$//&#39; $FilePath$` in the Parameters. Overall the command that you want IntelliJ to run is,

    /usr/bin/sed -i &#39;s/[[:space:]]\+$//&#39; &lt;your current file&gt;

This sed will remove the trailing whitespace, and overall the effect will be very similar to git. Next you can add a keyboard shortcut for your new external tool entry, but I am not sure whether it is possible to run anything on save.


What worked for me was

Intelij
1. Settings
2. General
3. On Save
4. Unchecking remove trailing spaces

Workspace
1. Find .editorconfig
2. Set &quot;trim_trailing_whitespace&quot; setting.

```
[*]
charset = utf-8
indent_style = space
indent_size = 2
insert_final_newline = true
trim_trailing_whitespace = false
```

Can I use Visual Studio to learn C programming? In the new project menu I can choose between Visual Basic, Visual C#, Visual C++, Visual F# and others but I don&#39;t see &quot;C&quot; or &quot;Visual C&quot;.

C programming in Visual Studio

I&#39;m trying to write a HTTP interceptor for my AngularJS app to handle authentication.

This code works, but I&#39;m concerned about manually injecting a service since I thought Angular is supposed to handle this automatically:

        app.config([&#39;$httpProvider&#39;, function ($httpProvider) {
        $httpProvider.interceptors.push(function ($location, $injector) {
            return {
                &#39;request&#39;: function (config) {
                    //injected manually to get around circular dependency problem.
                    var AuthService = $injector.get(&#39;AuthService&#39;);
                    console.log(AuthService);
                    console.log(&#39;in request interceptor&#39;);
                    if (!AuthService.isAuthenticated() &amp;&amp; $location.path != &#39;/login&#39;) {
                        console.log(&#39;user is not logged in.&#39;);
                        $location.path(&#39;/login&#39;);
                    }
                    return config;
                }
            };
        })
    }]);

What I started out doing, but ran into circular dependency problems:

        app.config(function ($provide, $httpProvider) {
        $provide.factory(&#39;HttpInterceptor&#39;, function ($q, $location, AuthService) {
            return {
                &#39;request&#39;: function (config) {
                    console.log(&#39;in request interceptor.&#39;);
                    if (!AuthService.isAuthenticated() &amp;&amp; $location.path != &#39;/login&#39;) {
                        console.log(&#39;user is not logged in.&#39;);
                        $location.path(&#39;/login&#39;);
                    }
                    return config;
                }
            };
        });
    
        $httpProvider.interceptors.push(&#39;HttpInterceptor&#39;);
    });

Another reason why I&#39;m concerned is that the [section on $http][1] in the Angular Docs seem to show a way to get dependencies injected the &quot;regular way&quot; into a Http interceptor. See their code snippet under &quot;Interceptors&quot;:

    // register the interceptor as a service
    $provide.factory(&#39;myHttpInterceptor&#39;, function($q, dependency1, dependency2) {
      return {
        // optional method
        &#39;request&#39;: function(config) {
          // do something on success
          return config || $q.when(config);
        },
     
        // optional method
       &#39;requestError&#39;: function(rejection) {
          // do something on error
          if (canRecover(rejection)) {
            return responseOrNewPromise
          }
          return $q.reject(rejection);
        },
     
     
     
        // optional method
        &#39;response&#39;: function(response) {
          // do something on success
          return response || $q.when(response);
        },
     
        // optional method
       &#39;responseError&#39;: function(rejection) {
          // do something on error
          if (canRecover(rejection)) {
            return responseOrNewPromise
          }
          return $q.reject(rejection);
        };
      }
    });
     
    $httpProvider.interceptors.push(&#39;myHttpInterceptor&#39;);

Where should the above code go?

I guess my question is what&#39;s the right way to go about doing this?

Thanks, and I hope my question was clear enough.

  [1]: http://docs.angularjs.org/api/ng.$http

AngularJS: Injecting service into a HTTP interceptor (Circular dependency)

Is it possible to remove trailing whitespace automatically on save in IntelliJ IDEA? I know there are some workarounds, for example, using git to trim the whitespace on commit. 
Maybe this question is a duplicate of [this one](https://stackoverflow.com/questions/946993/intellij-reformat-on-file-save/5581992#5581992), but i hope this can be done without setting up keyboard shortcuts and macros.

Remove trailing whitespace on save in IntelliJ IDEA 12

<p>Is it possible to remove trailing whitespace automatically on save in IntelliJ IDEA? I know there are some workarounds, for example, using git to trim the whitespace on commit.
Maybe this question is a duplicate of <a href="https://stackoverflow.com/questions/946993/intellij-reformat-on-file-save/5581992#5581992" target="_blank" rel="noopener noreferrer">this one</a>, but i hope this can be done without setting up keyboard shortcuts and macros.</p>


I want a diff of all changes in a branch that is not merged to master yet.

I tried:

    git diff master
    git diff branch..master
    git diff branch...master

However, in each of these cases the diff contains content in master that has not been merged into my branch yet.

Is there a way to do a diff between my branch and master that excludes changes in master that have not been merged into my branch yet?

Git diff between current branch and master but not including unmerged master commits

I am using Git in Visual Studio. When I am trying to synchronize, the following message appears:

&gt; An error occured. Detailed message: An error was raised by libgit2. Cetegory = checkout(MergeConflict). 1 conflicts prevent checkout

I don&#39;t have a clue about what the conflicts are and how to fix them. Can anyone help me overcome this problem?

&quot;Conflicts prevent checkout&quot; error using Git in Visual Studio

I&#39;m using `git` to manage files on a project, and keep running into this problem.

When I run `git status` I get the message

    fatal: unable to read tree e2d920161d41631066945a3cbcd1b043de919570

As I understand it, I should check the output of `git fsck`, and I receive

    broken link from    tree e09a42f248afff64336fbbec2523df97c26451ac
                  to    tree e2d920161d41631066945a3cbcd1b043de919570
    broken link from    tree e09a42f248afff64336fbbec2523df97c26451ac
                  to    tree 9b0dd389bd7f9e8d257395d57e0881b7957f9698
    broken link from    tree e09a42f248afff64336fbbec2523df97c26451ac
                  to    tree 9e288a4ad60d63f342dfd18237980674426aa725
    broken link from    tree e09a42f248afff64336fbbec2523df97c26451ac
                  to    tree 2a04647337089f554fab8c49cfd37149e5f4fc9f
    broken link from    tree e09a42f248afff64336fbbec2523df97c26451ac
                  to    tree ea16658b45ce961adc3c3f519b0e8d9672918ca8

together with a lot of `missing blob` messages.

Following various resources (e.g https://stackoverflow.com/questions/16955523/git-broken-links-missing-dangling-trees) I have simply re-cloned the project from `github` and started again. 

Once I have re-cloned the project, all is good for a few `commit`s, and then the problem arises again. Re-cloning every time doesn&#39;t seem to be optimal, and seems to go against the idea of using `git`, and I&#39;d like to try and understand what is going on. How can I diagnose and fix this problem?

How to diagnose and fix git fatal: unable to read tree

Since few time, I use Github for my projects and I have an issue when I want to push commits. 

To beginning, I have forked a repository. Then I have cloned the fork (with command line `git clone https://github.com/ ...`) and, after doing modifications, I have committed with success (`git commit -a`).

After this, I have tried to push commits with command line `git push` but I obtain the following error:

    fatal: could not read Username for &#39;https://github.com&#39;: No such file or directory

Have you got an idea to resolve this issue?

Error when push commits with Github: fatal: could not read Username

I find myself doing this a lot when cherry-picking a commit from another branch.

    $ git log -1 another_branch
    commit &lt;commit_sha&gt;
    // copy &lt;commit_sha&gt;
    $ git cherry-pick &lt;commit_sha&gt;

Can I do all of this in one command, if so, what is it?

How to cherry-pick the last sha from another branch in Git with 1 command?

Does anyone know some shortcut to switch between design and text in android studio while editing XML layout?

While I can switch from design view to source using &lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;B&lt;/kbd&gt; (and need to select something in layout before), I have no way to go back.


Shortcut to switch between design and text in Android Studio

I am using intellij idea 13.0. When I am trying to checkout from subversion I am getting error

    Cannot load supported formats: Cannot run program &quot;svn&quot;: CreateProcess error=2, The system cannot find the file specified

How do I fix this?

Intellij idea subversion checkout error: `Cannot run program &quot;svn&quot;`

What is the &quot;Abbreviation&quot; feature in IntelliJ IDEA Keymap for? [Web help on Keymap](http://www.jetbrains.com/idea/webhelp/keymap.html) is silent about it.

![IntelliJ Keymap abbreviation screenshot][1]


  [1]: http://i.stack.imgur.com/2LjMB.png

What is the IntelliJ IDEA&#39;s Keymap&#39;s abbreviation feature useful for?

    public class KV&lt;K, V&gt; {
        public K key;
        public V value;
        public KV(K key, V value) {
            this.key = key;
            this.value = value;
        } 
    }



I am trying to refactor the class variable `value`, which happens in place. That means no dialog pops up; I press enter and it tries to refactor across the entire project, including comments and what not, including:

    &lt;%--&lt;link href=&quot;&lt;c:url value=&quot;../core/core.css&quot; /&gt;&quot; /&gt;--%&gt;

in a .jsp file. That is way too &quot;clever&quot; to try to refactor **comments** that match across the entire project. This often causes lots of bug risk, and refactoring in a Java environment is no longer safe. 

The same thing was occurring in Intellij 12. Seriously, I don&#39;t need Intellij to recommend anything that is considered unsafe, or when it is not sure it is the same thing!

I can exclude the refactorings but I don&#39;t have time to evaluate five &quot;suggestions&quot; every time. It just raises the chance of human error: most of the time I just press enter, and woops things are refactored. 

Refactoring is also a major issue in a Java environment when it sometimes tries to replace things in .js files. Seriously, this has to stop. 

Without the popup dialog, I can&#39;t untick &quot;search strings&quot;. Even if that was ticked, Intellij should *never* include the suggestions by default, especially when it is outside the current file. It can recommend to refactor them as well, but they should be excluded by default. That is, it should be an opt-in feature, rather than by default destroying everything. 

This is a serious user experience problem with more recent so called &quot;smart&quot; Intellij refactoring. When refactoring JS files, I don&#39;t want to search Java files for comments or strings! Period! And vice versa! 

Safety comes first! Developers that know what they are doing will search for strings themselves if needed. In a dynamic language environment it makes Intellij impossible to use, because frequently, and without any clear pattern, sometimes refactorings go through, sometimes it changes things across the project and what not.

There should be an option that says, &quot;refactor only relative to this file or when 100% inferred!&quot;, especially for dynamic languages! For static languages it shouldn&#39;t even attempt to look for comments and strings outside the file. 

I didn&#39;t mean to put it out in public, but I have raised this issue over 2 years ago in the bugtracker, but nobody paid any attention.

**EDIT**

For those of you that think that I might be going to far, I just tried this out: 

With this class: 

    public class KV&lt;K, V&gt; {
        public K key;
        public V val;
        public KV(K key, V val) {
            this.key = key;
            this.val = val;
        }
    }

And adding this to **any** Java class, for instance: 

    public class CoreConfig {
        String abc = &quot;kv.val&quot;;
        String def = &quot;somethingElse.val&quot;;
    }


When refactoring `KV.val` as before, I get the following recommendations, an ENTER from disaster and something I have to evaluate and exclude one at a time. It takes effort and is just annoying and risky. It&#39;s like someone yelling out, STOP! And then ooh, nothing after a minute, frustration and a 1000 long word essay ( this ).

![enter image description here][1]


  [1]: http://i.stack.imgur.com/7713o.png

Seriously, is there a way to disable this kind of risky behaviour!? And is there any reason why this is on by default??


**EDIT 20200706**

Shit continues in 2020:
https://youtrack.jetbrains.com/issue/IDEA-245370

Intellij IDEA 13: how do I disable refactor comments and strings?

I want to use Intellij Idea within my existing python django project which was built within a virtual environment in ubuntu. How do I configure Intellij Idea to use the libraries of the virtual environment?

Content Type	Original Author	Original Content on Stackoverflow
Question	klingt.net	View Question on Stackoverflow
Solution 1 - Git	Vic	View Answer on Stackoverflow
Solution 2 - Git	zeljko_a	View Answer on Stackoverflow
Solution 3 - Git	Despertaweb	View Answer on Stackoverflow
Solution 4 - Git	mockinterface	View Answer on Stackoverflow
Solution 5 - Git	Pavel Kunitsky	View Answer on Stackoverflow

Remove trailing whitespace on save in IntelliJ IDEA 12

Git Problem Overview

Git Solutions

Solution 1 - Git

Solution 2 - Git

Solution 3 - Git

Solution 4 - Git

Solution 5 - Git

AngularJS: Injecting service into a HTTP interceptor (Circular dependency)

C programming in Visual Studio

Attributions