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Re: [BUG] rebase --interactive silently overwrites ignored files


On 12/04/2019 00:56, wh wrote:
I'm using git 2.20.1 from Debian. Git is usually careful not to
overwrite untracked files, including ignored files.

Git normally overwrites ignored files, so I think in your example rebase -i is working as expected, I'm surprised that the am based rebase does not overwrite the ignored file. There has been some discussion about introducing 'precious' files that are ignored but protected in the same way as untracked files [1].

Best Wishes


[1] https://public-inbox.org/git/20190409102649.22115-1-pclouds@xxxxxxxxx/

 But interactive
rebase doesn't detect this (non-interactive rebase works fine).


mkdir upstream
cd upstream
git init
echo 1 >feature-1
git add feature-1
git commit -m "feature 1"

cd ..
git clone upstream local
cd local
# write some tools for our own convenience
echo ours >tools
echo /tools >>.git/info/exclude
# start working on a feature
git checkout -b f2
echo wip >feature-2
git add feature-2
git commit -m "wip"

cd ../upstream
# official tools are available
echo theirs >tools
git add tools
git commit -m "tools"

cd ../local
git fetch ../upstream master

# this would be okay
#git rebase FETCH_HEAD

# problem: overwrites tools silently
GIT_EDITOR=true git rebase -i FETCH_HEAD

cat tools


Expected: `git rebase -i` fails because it would have to overwrite the
untracked "tools" file. Contents of tools file remains `ours`.

Actual: Contents of tools file becomes `theirs`.