I made do with windows git 2.26 - unfortunately it does not play well with 
cygwin git

My first attempt at windows git worktree add produced: "Working tree has 
modifications.  Cannot add."

Very surprising since it was a fresh clone - but using cygwin git

Turns out the error is from a git diff-index HEAD at 
https://github.com/git/git/blob/master/contrib/subtree/git-subtree.sh#L617

windows git diff-index showed two kinds of false positives

1. new files:

:100644 100644 b5ae85651031085a9dc89f584d235e48f0502837 000000000000000000000000
0000000000000000 M      LICENSE

this is fixed with windows git update-index LICENSE

2. file permissions change

:100755 100644 ae8fb75816f99be89c0171fb5b287149f52c19be ae8fb75816f99be89c0171fb
5b287149f52c19be M      googletest/ci/build-linux-bazel.sh

this is fixed with windows git config core.filemode false

Bit easier is insuring the repo was cloned with windows git in the first place 
- but it's good to know where the two versions don't agree

I can't say which version is at fault for the inconsistency


On Sunday, April 12, 2020, 09:17:32 AM EDT, Steven Penny <svnp...@gmail.com> 
wrote: 


> Will git contrib/subtree be in the next release? It's not in the latest 
> version 2.21.0-1.

https://stackoverflow.com/questions/27109525/install-git-subtree-with-cygwin
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