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copyPathToStore(): Preserve symlinks

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E.g. in a derivation attribute `foo = ./bar`, if ./bar is a symlink,
we should copy the symlink to the store, not its target. This restores
the behaviour of Nix <= 2.19.

(cherry picked from commit 26b87e78b5)
This commit is contained in:
Eelco Dolstra 2025-02-11 20:36:28 +01:00 • committed by Mergify
parent 4c3786dd40
commit 83306bb841
4 changed files with 19 additions and 2 deletions
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2
src/libexpr/eval.cc
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@ -2384,7 +2384,7 @@ StorePath EvalState::copyPathToStore(NixStringContext & context, const SourcePat
: [&]() {
auto dstPath = fetchToStore(
*store,
path.resolveSymlinks(),
path.resolveSymlinks(SymlinkResolution::Ancestors),
settings.readOnlyMode ? FetchMode::DryRun : FetchMode::Copy,
path.baseName(),
ContentAddressMethod::Raw::NixArchive,