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Add makeParentCanonical()

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This commit is contained in:
Robert Hensing 2024-12-13 18:37:25 +01:00 • committed by Mic92
parent 6827768807
commit 69853c067c
3 changed files with 44 additions and 0 deletions
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15
src/libutil/file-system.cc
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@ -766,4 +766,19 @@ bool isExecutableFileAmbient(const fs::path & exe) {
) == 0;
}
std::filesystem::path makeParentCanonical(const std::filesystem::path & rawPath)
{
std::filesystem::path path(absPath(rawPath));;
try {
auto parent = path.parent_path();
if (parent == path) {
// `path` is a root directory => trivially canonical
return parent;
}
return std::filesystem::canonical(parent) / path.filename();
} catch (fs::filesystem_error & e) {
throw SysError("canonicalising parent path of '%1%'", path);
}
}
} // namespace nix