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Update src/libexpr/paths.cc

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Graham Christensen 2025-06-02 14:08:42 -04:00 • committed by GitHub
parent 3e45b40d66
commit 7a450a8ba9
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1 changed files with 4 additions and 3 deletions
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7
src/libexpr/paths.cc
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@ -57,9 +57,10 @@ std::string EvalState::computeBaseName(const SourcePath & path, PosIdx pos)
if (path.accessor == rootFS) {
if (auto storePath = store->maybeParseStorePath(path.path.abs())) {
warn(
"Performing inefficient double copy of path '%s' to the store at %s. "
"This can typically be avoided by rewriting an attribute like `src = ./.` "
"to `src = builtins.path { path = ./.; name = \"source\"; }`.",
"Copying '%s' to the store again\n"
"You can make Nix evaluate faster and copy fewer files by replacing `./.` with the `self` flake input, "
"or `builtins.path { path = ./.; name = \"source\"; }`\n\n"
"Location: %s\n",
path,
positions[pos]);
return std::string(fetchToStore(*store, path, FetchMode::DryRun, storePath->name()).to_string());