Opposite/reverse of “git submodule absorbgitdirs”?

Question

How can I do the reverse of git submodule absorbgitdirs? I.e. move a submodule\'s .git information out of superproject/.git/modules/

Answer 1

I wrote a script to do this. Add this to your ~/.gitconfig:

[alias]
    extract-submodules = "!gitextractsubmodules() { set -e && { if [ 0 -lt \"$#\" ]; then printf \"%s\\n\" \"$@\"; else git ls-files --stage | sed -n \"s/^160000 [a-fA-F0-9]\\+ [0-9]\\+\\s*//p\"; fi; } | { local path && while read -r path; do if [ -f \"${path}/.git\" ]; then local git_dir && git_dir=\"$(git -C \"${path}\" rev-parse --absolute-git-dir)\" && if [ -d \"${git_dir}\" ]; then printf \"%s\t%s\n\" \"${git_dir}\" \"${path}/.git\" && mv --no-target-directory --backup=simple -- \"${git_dir}\" \"${path}/.git\" && git --work-tree=\"${path}\" --git-dir=\"${path}/.git\" config --local --path --unset core.worktree && rm -f -- \"${path}/.git~\" && if 1>&- command -v attrib.exe; then MSYS2_ARG_CONV_EXCL=\"*\" attrib.exe \"+H\" \"/D\" \"${path}/.git\"; fi; fi; fi; done; }; } && gitextractsubmodules"

and then run:

git extract-submodules [...]

If you run it without specifying any submodules, it will extract all of them.

---

If you want to see what the code is doing, just change

&& gitextractsubmodules

at the end to

&& type gitextractsubmodules

and then run the command without arguments to make Bash pretty-print the function body.