Git Diff and Merge Tool - IntelliJ IDEA

.gitconfig

# Linux
# add the following to "~/.gitconfig" file

[merge]
    tool = intellij
[mergetool "intellij"]
    cmd = /usr/local/bin/idea merge $(cd $(dirname "$LOCAL") && pwd)/$(basename "$LOCAL") $(cd $(dirname "$REMOTE") && pwd)/$(basename "$REMOTE") $(cd $(dirname "$BASE") && pwd)/$(basename "$BASE") $(cd $(dirname "$MERGED") && pwd)/$(basename "$MERGED")
    trustExitCode = true

[diff]
    tool = intellij
[difftool "intellij"]
    cmd = /usr/local/bin/idea diff $(cd $(dirname "$LOCAL") && pwd)/$(basename "$LOCAL") $(cd $(dirname "$REMOTE") && pwd)/$(basename "$REMOTE")



# Mac
# add the following to "~/.gitconfig" file

[merge]
    tool = intellij
[mergetool "intellij"]
    cmd = /Applications/IntelliJ\\ IDEA.app/Contents/MacOS/idea merge $(cd $(dirname "$LOCAL") && pwd)/$(basename "$LOCAL") $(cd $(dirname "$REMOTE") && pwd)/$(basename "$REMOTE") $(cd $(dirname "$BASE") && pwd)/$(basename "$BASE") $(cd $(dirname "$MERGED") && pwd)/$(basename "$MERGED")
    trustExitCode = true
[diff]
    tool = intellij
[difftool "intellij"]
    cmd = /Applications/IntelliJ\\ IDEA.app/Contents/MacOS/idea diff $(cd $(dirname "$LOCAL") && pwd)/$(basename "$LOCAL") $(cd $(dirname "$REMOTE") && pwd)/$(basename "$REMOTE")



# Windows
# add the following to "C:\Users\<username>\.gitconfig" file

[merge]
    tool = intellij
[mergetool "intellij"]
    cmd = cmd.exe //c "\"C:/Program Files (x86)/IntelliJ IDEA Community Edition 12.0/bin/idea.bat\" merge \"$LOCAL\" \"$REMOTE\" \"$BASE\" \"$MERGED\""
    trustExitCode = true
[diff]
    tool = intellij
[difftool "intellij"]
    cmd = cmd.exe //c "\"C:/Program Files (x86)/IntelliJ IDEA Community Edition 12.0/bin/idea.bat\" diff \"$LOCAL\" \"$REMOTE\""

readme.md

Invoking IntelliJ IDEA from the command line

On OS X or UNIX:

• Make sure IntelliJ IDEA is running.
• On the main menu, choose Tools > Create Command-line Launcher. The dialog box Create Launcher Script opens, with the suggested path and name of the launcher script. You can accept default, or specify your own path.
• Make notice of it, as you'll need it later. Outside of IntelliJ IDEA, add the path and name of the launcher script to your path.

On Windows:

• Specify the location of the IntelliJ IDEA executable in the Path system environment variable. In this case, you will be able to invoke the IntelliJ IDEA executable and other IntelliJ IDEA commands from any directory.

For more information, visit https://www.jetbrains.com/help/idea/2016.2/running-intellij-idea-as-a-diff-or-merge-command-line-tool.html

Issues and Solutions

• In windows 10, if you face some warning like “Could not open/create prefs root node …” Ref: http://stackoverflow.com/questions/16428098/groovy-shell-warning-could-not-open-create-prefs-root-node Thanks to @SanthoshDhandapani for this.

As far as I can tell, with the idea that's generated today, attempting idea --wait diff file1 file2 just shows an error in Intellij IDEA:

Cannot execute command
Can not open file
/path/to/pwd/diff

Where as idea diff file1 file2 works as expected.

There is clearly a bug in the handling of the wait flag in the generated script. Hopefully it will be fixed soon. In the meantime you can easily fix it by replacing the contents of the scripts for loop with this:

  if [[ "$o" = "--wait" || "$o" = "-w" ]]; then
    wait="-W"
    o="--wait"
  elif [[ "$o" =~ " " ]]; then
    ideargs+=("\"$o\"")
  else
    ideargs+=("$o")
  fi

I'm facing a problem with rendering, when I close the IntelliJ mergetool the main IDE looks weird like the top navbar is gone, the breadcrumb is out of the screen, and so on. After restart, it looks fine again.

Am I the only one facing this?

Is there any way to keep the code highlight of IDEA?