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libutil/source-accessor: custom error if source does not exist

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This allows better error handling by catching this error in particular.
This commit is contained in:
Jörg Thalheim 2024-05-25 23:06:56 +02:00
parent 5cfa75ea16
commit f97da4b11c
2 changed files with 3 additions and 1 deletions
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2
src/libutil/source-accessor.cc
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@ -53,7 +53,7 @@ SourceAccessor::Stat SourceAccessor::lstat(const CanonPath & path)
if (auto st = maybeLstat(path))
return *st;
else
throw Error("path '%s' does not exist", showPath(path));
throw FileNotFound("path '%s' does not exist", showPath(path));
}
void SourceAccessor::setPathDisplay(std::string displayPrefix, std::string displaySuffix)

2
src/libutil/source-accessor.hh
View File

@ -29,6 +29,8 @@ enum class SymlinkResolution {
Full,
};
MakeError(FileNotFound, Error);
/**
* A read-only filesystem abstraction. This is used by the Nix
* evaluator and elsewhere for accessing sources in various