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Backport SourcePath from the lazy-trees branch

This introduces the SourcePath type from lazy-trees as an abstraction
for accessing files from inputs that may not be materialized in the
real filesystem (e.g. Git repositories). Currently, however, it's just
a wrapper around CanonPath, so it shouldn't change any behaviour. (On
lazy-trees, SourcePath is a <InputAccessor, CanonPath> tuple.)
This commit is contained in:
Eelco Dolstra 2023-04-06 13:15:50 +02:00
parent 5256ba6d87
commit 94812cca98
35 changed files with 567 additions and 263 deletions

View file

@ -8,6 +8,7 @@ namespace nix {
class Store;
class EvalState;
class Bindings;
struct SourcePath;
struct MixEvalArgs : virtual Args
{
@ -25,6 +26,6 @@ private:
std::map<std::string, std::string> autoArgs;
};
Path lookupFileArg(EvalState & state, std::string_view s);
SourcePath lookupFileArg(EvalState & state, std::string_view s);
}