I'm using Eclipse and EGit, but Eclipse modifies my .gitignore file without me asking to do so. As soon as I open Eclipse the .gitignore file is modified.
I've added some folders to .gitignore (through EGit) but removed them after, but Eclipse keeps adding removed lines to .gitignore.
git checkout .gitignore, I get the good version of the file- Then I go to Eclipse window
- Then I go back to terminal and issue:
git status, - I can see that .gitignore is now modified.
How can it be?
By default, EGit automatically adds resources marked as "Derived" to .gitignore. A typical example is the bin folder in a Java project containing the compiled classes.
You can disable this by going to Window > Preferences > Team > Git > Projects and deselect "Automatically ignore derived resources by adding them to .gitignore".
There was also a bug in EGit where it added entries when the Eclipse model and the filesystem were out-of-sync, see bug 421610 (fixed for EGit 3.5).
来源：https://stackoverflow.com/questions/17748223/egit-and-eclipse-modifies-gitignore-file-but-it-should-not