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libgit2 doesn't support relative worktrees (as per git >= 2.48) #7210
Description
Git supports worktrees specified with relative rather than absolute paths (handy where the same device may be mounted differently, WSL and Windows shared use etc) since about git v2.48 (https://github.com/git/git/blob/cf6f63ea6bf35173e02e18bdc6a4ba41288acff9/Documentation/RelNotes/2.48.0.adoc?plain=1#L57)
https://git-scm.com/docs/git-config
relativeWorktrees
If enabled, indicates at least one worktree has been linked with relative paths. Automatically set if a worktree has been created or repaired with either the --relative-paths option or with the worktree.useRelativePaths config set to true.
But as of 1.91 libgit2 fails with "unsupported extension name extensions.relativeworktrees" if this feature is used
See report of this issue with libgit2 under nix for steps of how to reproduce
Activity
[-]libgit2 does support relative worktrees (as per git >= 2.48)[/-][+]libgit2 doesn't support relative worktrees (as per git >= 2.48)[/+]fix: Recognize relative worktrees extension
schmerg commentedon May 12, 2026
Thanks @cwill747 @ethomson ... much appreciated
willieseabrook commentedon May 17, 2026
Thanks for this. The issue was breaking my nix setup.
So now just a matter of waiting for the next libgit2 release so it can flow through to nix.
fix: Recognize relative worktrees extension
fix: Recognize relative worktrees extension