IntelliJ / Adroid Studio / CLion / GoLand / PyCharm / PHPStorm keymap shortcuts I can’t live without

Download settings.jar (Import with `File -> Import Settings`)

I got to IntelliJ after years of using Emacs and Eclipse. Here’s how my keymap looks now that I work with Jetbrains tools, these are the keyboard shortcuts I can’t live without as a programmer.


Legend (Mac keyboard)
⌘ Command
⇧ Shift

⌘1 Show Intent Actions (Things like assign to local variable)
⌘- Decrease font size
⌘= Increase font size
⌘0 Reset font size
⌘↓ Scroll to botom
⌘↑ Scroll to top
⌘f Find in text
⌘. Find next highlighted error
^⇧F Find in path (searches in all files, like a grep)
⌘⇧G Find Usages (Find all Occurrences of selected symbol [variable, method, class, identifier])
⌘I Show current function/method parameter info
F3 Jump to source (go inside function’s code)
⌘E Show list of recent files
⌘B Build
⌘L Jump to line number
⌘[ Back
⌘] Forward
⌘T Show implementations of an interface.
⌘⇧F Format (selected) code
⌘⇧O Organize/Optimize imports
⌘⌥R Rename current symbol
^K Kill line
⌘D Duplicate line
Ctrl+G on selected token – repeats selection and enables multiple cursors
Alt+Up | Alt+Down – Move the current line up or down

Debugger shortcuts
F5 Step Into
F6 Step Over
F7 Step Out
F9 Resume Program

^K Cut up to Line End. (Deletes everything to the right of where the text cursor or caret is)

Top Eclipse (IDE) features I can’t live without

(If you are in Windows, replace “Cmd” for “Ctrl”, and “Option” for “Alt”)

Cmd + 1: Create variables out of function’s outputs, get suggestions to fix issues.

“Shift + Cmd + T”: Open Type.

“Shift + Cmd + R”: Open Resource.

Select element and press “Option + Cmd + R” to rename a class, variable, method, the refactor will be performed throughout the entire project flawlessly.

Select element and press “Cmd + T”: Show Type Hierarchy, great to know what classes implement an interface, or what classes extend an abstract class.

Setting up Eclipse as your IDE for Bitcoin C++ development on MacOSX.

If you are a Java developer used to the productivity levels achieved by working with eclipse’s code navigation, code completion and refactoring tools, it’s worth your time staying in eclipse for any sort of C++ development.

Screen Shot 2014-02-09 at 1.03.21 PM

This post refers specifically to getting your eclipse environment to work with a particular C++ Open Source project, The Bitcoin Project.

Before you start setting up eclipse, please make sure you can build Bitcoin from the command line, this way you know that you have everything necessary to build Bitcoin, even if you’re still getting a few errors showing in Eclipse, in the end Eclipse will be using the Makefiles provided by the project whenever we need to compile (and it can do so incrementally when possible saving you a lot of compilation time)

I’m assuming you have installed:
– eclipse
eclipse CDT tools, up to date for the version of eclipse you’re working with (I’m still working with Juno)
– Qt/Eclipse plugin (optionally)
– All the dependencies (autoconf automake berkeley-db4 boost miniupnpc openssl pkg-config protobuf qt gdb) necessary to build Bitcoin which are easily installable via HomeBrew.

1. Let’s import the bitcoin/ project to our workspace.

File > Import > Existing Code as Makefile Project

Screen Shot 2014-02-09 at 12.41.45 PM


Look for the bitcoin/ git checkout folder, and make sure you use the GNU Autotools Toolchain

Screen Shot 2014-02-09 at 12.43.05 PM


Click Finish.

2. Fixing the C++ compiler Path and Symbols.

Right click on the project containing folder in the Project Explorer > Properties.
Go to C/C++ General > Paths and Symbols > Languages: GNU C++ >  “Includes” Tab and make sure it looks something like the screenshot below (I got those paths by looking at  the  ones used by the Makefiles in the Bitcoin. Hit Apply , OK, then wait for the reindexing, you might still have a few weird errors because of how the compiler checking settings are.

Screen Shot 2014-02-09 at 12.55.38 PM

3. Remove a few more issues like “Error: Invalid arguments candidates are: void resize(?, int)."

We open again the project Properties, this time we go to C/C++ General > Preproessor Include Paths, Macros, etc.
Click on the Providers tab and make sure “CDT GCC Built-in Compiler Settings [Shared]” is checked. Hit Apply, OK, wait for reindexing.
If there are still errors, you might want to just delete them and refresh the project (F5 on the project folder in the Project explorer), all errors should be gone by now.

Screen Shot 2014-02-09 at 1.01.25 PM

Now start working just as fast as you’re used to with Java on Eclipse.


Code completion…

Screen Shot 2014-02-09 at 1.09.39 PM


Project wide renaming refactors in seconds…

Screen Shot 2014-02-09 at 1.10.07 PM



Find references of variables, methods, classes (Cmd+Shift+G)

Screen Shot 2014-02-09 at 1.23.37 PM


Find all the implementations of an interface (Cmd+T)

Screen Shot 2014-02-09 at 3.34.39 PM

and best of all

Interactive debugging with gdb*

Screen Shot 2014-02-11 at 1.21.07 PM

and all the tools you know and love from Eclipse.

*Setting up GDB debugging

To do step by step debugging you can use gdb, if you don’t have it installed just go to your Terminal and type brew install gdb.

On your command line, execute your Makefile to create an executable, once it appears on your Project Explorer you can Right click on it Debug As > Debug Configuration…

Screen Shot 2014-02-11 at 1.31.43 PM

then make sure you have set gdb as the executable debugger in the “Debugger” configuration tab, then just set your breakpoints and debug away!

Screen Shot 2014-02-11 at 1.32.00 PM

Not so fast… 🙁

As of Mac OSX 10.9, Apple decided that you cannot use gdb unless the gdb executable is signed with a certificate, they want you to use their super duper lldb debugger, but it’s still not compatible with Eclipse, you know, so you use their XCode IDE instead of what you want to use…

Anyways, signing the gdb at /usr/local/bin/gdb is not that hard.

To sign it you can create a certificate, or use an existing developer certificate. In my case, I already had a Mac Developer certificate so it was a very simple process, just issuing a single command in the Terminal and I finally got rid of the "Unable to find Mach task port for process-id 93213: (os/kern) failure (0x5).\n (please check gdb is codesigned - see taskgated(8))" error.

codesign -s “Name of my certificate here” /usr/local/bin/gdb

Then I tried debugging, I got a password dialog to verify I was the owner of the certificate, and then gdb could take over and then I could do my step by step debugging, with the ocassional crash.

Happy Hacking.

How to use environment variables in your Eclipse project Run Configuration

Say you have some environment variables that you’d love to use as arguments of an executable in your project.

1. Go to “Run Configurations”

2. Click on the “Environment” tab.

3. Click the “Select” button.

4. A list with all of your environment variables will be shown. Choose the environment variables you need for this project/executable.

5. Use the variable using the following syntax ${env_var:MY_ENVIRONMENT_VARIABLE_HERE}

[SOLVED] Eclipse can’t see my Android Device on Ubuntu

Are you seeing this on eclipse when you plug your Android device to your Ubuntu box?

Serial Number: ??????????
AVD Name: N/A
Target: unknown
State: ??

Here’s the solution:

1. Create a script to fix this next time it happens, let’s call it “android_device_reset” and save it on a folder contained on your $PATH environment variable.

# android_device_reset script
sudo adb kill-server
sudo service udev stop
sudo adb start-server
sudo adb devices

Save it and make it executable
[bash]chmod +x android_device_reset[/bash]

2. Open this file /etc/udev/rules.d/51-android.rules

Make sure it looks something like this
SUBSYSTEMS=="usb", SYSFS{idVendor}=="0bb4", MODE=="0666"
SUBSYSTEMS=="usb", SYSFS{idVendor}=="22b8", MODE=="0666"

Each line represents a different android device. If you have just one, the file should be one line long.

On that example I’ve configured the rules for a Motorola Droid and a Nexus One.
If you need to know the idVendor numbers for your Android device go here

3. Whenever the problem happens, just open a terminal and type

It’ll ask you for your password, only administrative users will be able to execute the script.

Hope this helps.