How to disable intellij auto change my code format?

Question

When I edit the java source code, intellij will auto format my code besides the places I edit, how to disable that ?

Answer 1

For those of you who want to disable formatting just for some specific file(s), there is a way since 2018.3 (IDEA-97848).

Go to Settings > Editor > Code Style > Formatter and add your exclusion pattern(s).

Answer 2

I tried disabling trim trailing spaces in code formatting but this doesn't work for my file type '.erb'.

I added my file type '.erb' to selectively disable code inspection for this file type but this doesn't work in IntelliJ version 2016.2.4.

I locked my file after I had made the changes using the lock icon in the Status Bar and this finally worked!

Answer 3

In Preferences > Tools > Actions on save you have a definition

BUT that can be overwritten by the following one, so check in that order:

In Preferences > Editor > Code style > [language] uncheck reformat on file save.

Update: None of those worked for me, so I change my file, commit without save (DON'T save during commit to avoid data loss, you'll be prompted) and then CTRL-Z. Your file is committed and saved but only with your changes.

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FWIW, I'm using Scala, on IntelliJ Community 2021.2, with the Scala plugin.

Answer 4

In the latest IntelliJ Idea (2021.3), Auto formatting can be stopped for one or more file type by going to

Preferences -> Tools -> Actions on save -> Enable or Disable Reformatting action for one or more file type