Get section name and other attribute from a config file using git-config

Question

.gitmodules gets updated by different script, now I am trying to find the name and path of the submodule whose URL has changed, below code works, but there should be a better way?

#Check if .gitmodules file has changed.
file_changed=$(git diff --name-only HEAD .gitmodules)
if [[ $file_changed = '.gitmodules' ]]; then
   # get all the URLs which were changed.
   urls=($(git diff HEAD .gitmodules | grep "^+\s*url" | cut -d' ' -f3))
   for url in "${urls[@]}"; do
      echo "$url changed"
      submod_string=$(git config -f .gitmodules --get-regexp submodule.*.url | grep $url | cut -d' ' -f1)
      submod_name=$(echo ${submod_string} | cut -d. -f2)
      submod_path=$(git config -f .gitmodules --get-regexp --path submodule.${submod_name}.path | cut -d' ' -f2)
   done
fi

.gitmodules file looks as below, say if bbb's url has changed, then I need to get its name bbb and path BBB

$ cat .gitmodules
[submodule "aaa"]
    path = AAA
    url = https://blah.com/test/3a
[submodule "bbb"]
    path = BBB
    url = https://blah.com/test/3b
[submodule "ccc"]
    path = CCC
    url = https://blah.com/test/3c

Answer 1

You can try using a git submodule foreach loop.

It does have:

• $name set to the name
• $sm_path set to the path

That would avoid grepping the .gitmodules itself.