批处理文件，它将删除目录的每个子文件夹中的所有本地分支（git）

Question

Here is my requirement:

1. Iterate through all the subfolders of the given directory.
2. In each subfolder, delete all local branches except master branch.

For item#2, the following statement works when manually executed in a subfolder.

git branch | grep -v " master" | xargs git branch -D

I want to create a batch file that will execute the above statement in each subfolder.

I tried the following but could not make it work. Please help me identify what's wrong with the statement.

FOR /D %%G in ("C:\parent\*") Do (echo Updating %%G ...) && (cd %%G) && git branch | grep -v " master" | xargs git branch -D

Answer 1

In each subfolder, delete all local branches except master branch.

That is not how Git works. That might make sense with Subversion, not Git.
Once you have deleted a branch, that branch is gone for the all repo, not for a subfolder.

The only case where you could delete a branch in a Git repo subfolder is if that subfolder is the root folder is a submodule .

Plus, you might consider using -d instead of -D , to avoid deleting branches not fully merged. See " Can I delete all the local branches except the current one? ".

Answer 2

thank you for all the help.

It turns out that I am encountering the following error:

'grep' is not recognized as an internal or extenal command.

I did not see it because I execute the batch file by double clicking it, then command prompt will display and immediately close so I missed the error message.

Anyway, the batch file with the contents above worked as expected when I execute it using Git bash.

Note that this is only for maintenance purposes, assuming that I only need the master branch and all local branches are merged.