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git: determine if repo was cloned blobless or treeless

I want a programmatic way (preferably an alias) to determine whether a repository was cloned with either --filter=blob:none or --filter=tree:0, and to be able to tell which.

eg:

if git is-treeless; then echo "repo is treeless"; fi

How would I go about that?

Solution

  • In a blobless/treeless clone I see these keys in .git/config:

    [remote "origin"]
    promisor = true
    partialclonefilter = combine:blob:none+tree:0

    So you can try

    $ git config remote.origin.promisor
true

$ git config remote.origin.partialclonefilter
combine:blob:none+tree:0

    If you have many remotes perhaps you need to loop over them until you find a promisor remote.

    The docs.

    Upd. shell code to check if the remote is promisor:

    test "`git config remote.origin.promisor`" = true

    Shell code to check if the clone is blobless, treeless or both:

    git config remote.origin.partialclonefilter | grep -Fq blob
git config remote.origin.partialclonefilter | grep -Fq tree
git config remote.origin.partialclonefilter | grep -q 'blob.*tree'