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Extend nix-prefetch-git to support passing tree hashes as "rev" #104714

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Merged
taku0 merged 1 commit into from
Feb 20, 2021
Merged

Extend nix-prefetch-git to support passing tree hashes as "rev" #104714

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14 changes: 13 additions & 1 deletion pkgs/build-support/fetchgit/nix-prefetch-git
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Original file line number Diff line number Diff line change
Expand Up @@ -149,7 +149,19 @@ checkout_hash(){
fi

clean_git fetch -t ${builder:+--progress} origin || return 1
clean_git checkout -b "$branchName" "$hash" || return 1

local object_type=$(git cat-file -t "$hash")
if [[ "$object_type" == "commit" ]]; then
clean_git checkout -b "$branchName" "$hash" || return 1
elif [[ "$object_type" == "tree" ]]; then
clean_git config user.email "nix-prefetch-git@localhost"
clean_git config user.name "nix-prefetch-git"
local commit_id=$(git commit-tree "$hash" -m "Commit created from tree hash $hash")
clean_git checkout -b "$branchName" "$commit_id" || return 1
else
echo "Unrecognized git object type: $object_type"
return 1
fi
}

# Fetch only a branch/tag and checkout it.
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