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Checkout git submodules by tag

#git #submodule #devops #bash

In the git documentation can read that the git submodule doesn't support update the submodule by tag.

This is a simple solution:

# update submodule git submodule update --init # set tag for boost submodules DEFAULT_TAG="boost-1.70.0" # update git config -f .gitmodules --get-regexp '^submodule\..*\.url$' | while read -r KEY MODULE_PATH; do NAME="$(echo "${KEY}" | sed 's/^submodule\.\(.*\)\.url$/\1/')" if [[ $NAME =~ "boost" ]]; then pushd "${NAME}" git checkout -b new_branch_boost $DEFAULT_TAG popd fi done
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