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Warn against the use of relative 'git+file:' flake inputs #12277

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Merged
edolstra merged 2 commits into from
Jan 17, 2025
Merged

Warn against the use of relative 'git+file:' flake inputs #12277

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Warn against the use of relative 'git+file:' flake inputs
edolstra Jan 16, 2025
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edolstra Jan 17, 2025
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12 changes: 11 additions & 1 deletion src/libfetchers/git.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -435,7 +435,17 @@ struct GitInputScheme : InputScheme
//
// See: https://discourse.nixos.org/t/57783 and #9708
//
repoInfo.url = repoInfo.isLocal ? std::filesystem::absolute(url.path).string() : url.to_string();
if (repoInfo.isLocal) {
if (!isAbsolute(url.path)) {
warn(
"Fetching Git repository '%s', which uses a path relative to the current directory. "
"This is not supported and will stop working in a future release. "
"See https://github.com/NixOS/nix/issues/12281 for details.",
url);
}
repoInfo.url = std::filesystem::absolute(url.path).string();
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@bryango bryango Jan 17, 2025 •
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Is this still necessary after #12254? If not, we can simply drop it. The absolute(url.path) fix was proposed before #12254. It seems this is still necessary for flake inputs. I think the warning is great as it helps people migrate to other configurations.

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@edolstra edolstra Jan 17, 2025

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Yes, it's still needed. Only CLI arguments are absolutized.

} else
repoInfo.url = url.to_string();

// If this is a local directory and no ref or revision is
// given, then allow the use of an unclean working tree.
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