fix(git): enable use of --reference for sparse checkouts #354
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When using sparse checkouts, Gitman previously bypassed the local reference repository and treated it as a remote instead. This caused `.git` directories to become unnecessarily large, especially for repositories with extensive histories or LFS usage. This commit updates the sparse checkout logic to: - initialize the working directory with `git init` - add the upstream repo as remote - set the `alternates` file to point to the local reference (if caching is enabled) - perform a sparse fetch and checkout using the actual origin This restores object sharing via the local reference repository for sparse checkouts.
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When using sparse checkouts, Gitman previously bypassed the local reference repository and treated it as a remote instead. This caused
.gitdirectories to become unnecessarily large, especially for repositories with extensive histories or LFS usage.This commit updates the sparse checkout logic to:
git initalternatesfile to point to the local reference (if caching is enabled)This restores object sharing via the local reference repository for sparse checkouts.