Flake LFS Input

tengkuizdihar · February 23, 2024, 8:56am

Is there a way to add a flake input that have LFS in it? If you want a repository that can be used for this, please go to solver-orgz/treedome: A local-first, encrypted, note taking application with tree-like structures, all written and saved in your computer. - Codeberg.org. Right now, putting this repository to a flake input as URL will give failure when building.

wamserma · February 23, 2024, 1:14pm

Unfortunately not (at the moment) as this is a known issue:

github.com/NixOS/nix

Support for Git LFS in private repositories

opened 09:17AM - 09 Mar 21 UTC

FPtje

fetching

In Nixpkgs PRs https://github.com/NixOS/nixpkgs/pull/105998 and https://github.c…om/NixOS/nixpkgs/pull/113580, support for git LFS is added to the Nixpkgs `fetchgit` function. The problem with `fetchgit`, however, is that it does not properly support private repositories. Nix' `builtins.fetchGit` does support private repositories, but it does not seem to support git LFS. Currently, when trying to `builtins.fetchGit` a repository with LFS, the following happens: ``` nix-repl> builtins.fetchGit {url = "git@github.com:my_company/private-lfs-repo.git"; rev = "some_rev";} Downloading some/lfs/file (123 KB) Error downloading object: some/lfs/file (a123456): Smudge error: Error downloading some/lfs/file (some_rev): batch request: missing protocol: "" Errors logged to /home/my-user/nix/gitv2/xxx/lfs/logs/20210309T095658.11111111.log Use `git lfs logs last` to view the log. error: external filter 'git-lfs filter-process' failed error: program 'git' failed with exit code 128 ``` Ideally, it should be possible to `builtins.fetchGit` the repo either with or without downloading the LFS files. In one use case, the LFS files are used for non-vital things, like tests or documentation. The nix derivations do not depend on those files. Not downloading the LFS files would save space. In another use case, the LFS files _are_ needed to build the derivations, and should therefore be downloaded. It is possible to `export GIT_LFS_SKIP_SMUDGE=1` to accomplish the first use case (i.e. fetch private LFS repository without actually downloading the LFS files), but it would be be much nicer to have it as an option of the `builtins.fetchGit` function.