git stash -> merge stashed change with current changes


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I made some changes to my branch and realized I forgot I had stashed some other necessary changes to said branch. What I want is a way to merge my stashed changes with the current changes.

Is there a way to do this?

Its more for convenience, I eventually gave up and committed first my current changes, then my stashed changes, but I would have preferred to get them in with one fell swoop.


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    I just discovered that if your uncommitted changes are added to the index (i.e. "staged", using git add ...), then git stash apply (and, presumably, git stash pop) will actually do a proper merge. If there are no conflicts, you're golden. If not, resolve them as usual with git mergetool, or manually with an editor.

    To be clear, this is the process I'm talking about:

    mkdir test-repo && cd test-repo && git init
    echo test > test.txt
    git add test.txt && git commit -m "Initial version"
    
    # here's the interesting part:
    
    # make a local change and stash it:
    echo test2 > test.txt
    git stash
    
    # make a different local change:
    echo test3 > test.txt
    
    # try to apply the previous changes:
    git stash apply
    # git complains "Cannot apply to a dirty working tree, please stage your changes"
    
    # add "test3" changes to the index, then re-try the stash:
    git add test.txt
    git stash apply
    # git says: "Auto-merging test.txt"
    # git says: "CONFLICT (content): Merge conflict in test.txt"
    

    ... which is probably what you're looking for.


    tl;dr

    Run git add first.


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    Running git stash pop or git stash apply is essentially a merge. You shouldn't have needed to commit your current changes unless the files changed in the stash are also changed in the working copy, in which case you would've seen this error message:

    error: Your local changes to the following files would be overwritten by merge:
           file.txt
    Please, commit your changes or stash them before you can merge.
    Aborting
    

    In that case, you can't apply the stash to your current changes in one step. You can commit the changes, apply the stash, commit again, and squash those two commits using git rebase if you really don't want two commits, but that may be more trouble that it's worth.


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    What I want is a way to merge my stashed changes with the current changes

    Here is another option to do it:

    git stash show -p|git apply
    git stash drop
    

    git stash show -p will show the patch of last saved stash. git apply will apply it. After the merge is done, merged stash can be dropped with git stash drop.


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    As suggested by @Brandan, here's what I needed to do to get around

    error: Your local changes to the following files would be overwritten by merge:
           file.txt
    Please, commit your changes or stash them before you can merge.
    Aborting
    

    Follow this process:

    git status  # local changes to `file`
    git stash list  # further changes to `file` we want to merge
    git commit -m "WIP" file
    git stash pop
    git commit -m "WIP2" file
    git rebase -i HEAD^^  # I always use interactive rebase -- I'm sure you could do this in a single command with the simplicity of this process -- basically squash HEAD into HEAD^
    # mark the second commit to squash into the first using your EDITOR
    git reset HEAD^
    

    And you'll be left with fully merged local changes to file, ready to do further work/cleanup or make a single good commit. Or, if you know the merged contents of file will be correct, you could write a fitting message and skip git reset HEAD^.


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    The way I do this is to git add this first then git stash apply <stash code>. It's the most simple way.


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    May be, it is not the very worst idea to merge (via difftool) from ... yes ... a branch!

    > current_branch=$(git status | head -n1 | cut -d' ' -f3)
    > stash_branch="$current_branch-stash-$(date +%yy%mm%dd-%Hh%M)"
    > git stash branch $stash_branch
    > git checkout $current_branch
    > git difftool $stash_branch
    

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    Another option is to do another "git stash" of the local uncommitted changes, then combine the two git stashes. Unfortunately git seems to not have a way to easily combine two stashes. So one option is to create two .diff files and apply them both--at lest its not an extra commit and doesn't involve a ten step process :|

    how to: https://stackoverflow.com/a/9658688/32453