How to install Eclipse Luna (4.4) on Ubuntu

Installing Eclipse

1. Download Eclipse from here;
2. Extract it. You will end up having a folder named eclipse, copy it;
   
   
   
   
3. Press CTRL + ALT + T to open Terminal;
4. Type the command:

   sudo nautilus

   and then insert your password;
   
   
   
   
5. Browse to /opt/ and paste the extracted folder there.
   
   

Creating a shortcut

1. Press CTRL + ALT + T to open Terminal;
2. Type:

   sudo ln -s /opt/eclipse/eclipse /usr/bin/eclipse

   sudo gedit /usr/share/applications/eclipse.desktop

3. After these commands, gedit (ubuntu's default text editor) should have opened. Copy this and paste it there:

   [Desktop Entry]
   Name=Eclipse
   Type=Application
   Exec=/opt/eclipse/eclipse
   Terminal=false
   Icon=/opt/eclipse/icon.xpm
   Comment=Integrated Development Environment
   NoDisplay=false
   Categories=Development;IDE;
   Name[en]=Eclipse
   X-Desktop-File-Install-Version=0.22

   
   
   
4. Save the text file and close gedit;
5. This should have successfully created a shortcut. You may have to log off and back in for it to show up.
   
   
   

Snake for android

I've just finished another android app: Snake.

Here are the github repository and the .apk download links.

Screenshots:

Remove unwanted file that has been committed several commits ago from git repository

Recently I have been developing a contacts management program and as usual I've been using git for source code management. This program stores all the contacts info in a file, say contacts.info.

Today I bumped into a problem I had never had:
I noticed I had committed contacts.info several commits ago. As you can imagine, I had no intention of making those contacts info public. I needed to delete that file from my git repository, from all the commits I've committed since I added contacts.info.

I ended up finding a very useful tool for the job: BFG-Repo-Cleaner.

If you have a similar problem, here is a step-by-step guide on how to completely remove an unwanted file that has been committed several commits ago from your git repository:

1. Download BFG-Repo-Cleaner;
2. Clone a bare copy of your repository:
• git clone --mirror https://github.com/difusal/my-repo.git
3. Delete contacts.info from all the commits:
• java -jar bfg-1.11.6.jar --delete-files contacts.info my-repo.git/
4. Push the repository to save changes:
• git push

Yes, it is just that simple! If you browse through your past commits, any trace of contacts.info should now have been completely deleted.