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fetch-submodules fallback; add remove-submodules #7788

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Mar 25, 2023
Merged

fetch-submodules fallback; add remove-submodules #7788

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19 changes: 17 additions & 2 deletions Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -324,9 +324,24 @@ clean-stm:
$(MAKE) -C ports/stm BOARD=feather_stm32f405_express clean


# Do blobless partial clones of submodules to save time and space.
# If available, do blobless partial clones of submodules to save time and space.
# A blobless partial clone lazily fetches data as needed, but has all the metadata available (tags, etc.)
# so it does not have the idiosyncrasies of a shallow clone.
#
# If not available, do a fetch that will fail, and then fix it up with a second fetch.
# (Only works for git servers that allow sha fetches.)
.PHONY: fetch-submodules
fetch-submodules:
git submodule update --init --filter=blob:none
git submodule sync
#####################################################################################
# NOTE: Ideally, use git version 2.36.0 or later, to do partial clones of submodules.
# If an older git is used, submodules will be cloned with a shallow clone of depth 1.
# You will see a git usage message first if the git version is too old to do
# clones of submodules.
#####################################################################################
git submodule update --init --filter=blob:none || git submodule update --init -N --depth 1 || git submodule foreach 'git fetch --tags --depth 1 origin $$sha1 && git checkout -q $$sha1' || echo 'make fetch-submodules FAILED'

.PHONY: remove-submodules
remove-submodules:
git submodule deinit -f --all
rm -rf .git/modules/*