除了某个目录的所有子目录外，Git会忽略某种类型的所有文件吗？

Question

I'm trying to make a gitignore file that will ignore all .jar files unless they're in a folder called libs. Here's my basic file structure:

-.gitignore 
-libs/
    -goodFile.jar
    -someFolder/
        -subFolder/
            -alsoGood.jar
-otherCode/
    -fileToExclude.jar
-otherOtherCode/
    -otherSubfolder/
        -alsoExclude.jar

Currently in .gitignore I've tried:

*.jar
!libs
!libs/
!libs/*
!libs/**
!libs/**/
!libs/**/*.jar
!libs/*.jar

Either on their own, in combination, or even all together. None of them work. The only way I've found to do it is to either put in another .gitignore file into libs/ (which I would prefer to avoid) or use a !libs/*/*/*.jar line for every possible level of subdirectory. Is there a way to make it ignore all jars except the ones in libs?

Answer 1

How about:

*.jar
!libs/**/*.jar

The order is important.

Edit I used your project structure and have the following output after I did a git add and git status

$ git stat
On branch master

Initial commit

Changes to be committed:
  (use "git rm --cached <file>..." to unstage)

    new file:   .gitignore
    new file:   libs/goodFile.jar
    new file:   libs/someFolder/subFolder/alsoGood.jar
    new file:   libs/someFolder/subFolder/test/anotherFolder/test.jar



$ cat .gitignore 
*.jar
!libs/**/*.jar