5334c9c792
To be consistent with CLI, nix API and many other references. As part of this, we also converted it to a scoped enum. https://github.com/NixOS/nix/issues/8876
71 lines
1.5 KiB
C++
71 lines
1.5 KiB
C++
#include "source-accessor.hh"
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#include "archive.hh"
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namespace nix {
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static std::atomic<size_t> nextNumber{0};
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SourceAccessor::SourceAccessor()
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: number(++nextNumber)
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, displayPrefix{"«unknown»"}
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{
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}
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bool SourceAccessor::pathExists(const CanonPath & path)
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{
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return maybeLstat(path).has_value();
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}
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std::string SourceAccessor::readFile(const CanonPath & path)
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{
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StringSink sink;
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std::optional<uint64_t> size;
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readFile(path, sink, [&](uint64_t _size)
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{
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size = _size;
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});
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assert(size && *size == sink.s.size());
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return std::move(sink.s);
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}
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void SourceAccessor::readFile(
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const CanonPath & path,
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Sink & sink,
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std::function<void(uint64_t)> sizeCallback)
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{
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auto s = readFile(path);
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sizeCallback(s.size());
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sink(s);
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}
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Hash SourceAccessor::hashPath(
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const CanonPath & path,
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PathFilter & filter,
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HashAlgorithm ha)
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{
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HashSink sink(ha);
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dumpPath(path, sink, filter);
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return sink.finish().first;
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}
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SourceAccessor::Stat SourceAccessor::lstat(const CanonPath & path)
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{
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if (auto st = maybeLstat(path))
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return *st;
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else
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throw Error("path '%s' does not exist", showPath(path));
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}
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void SourceAccessor::setPathDisplay(std::string displayPrefix, std::string displaySuffix)
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{
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this->displayPrefix = std::move(displayPrefix);
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this->displaySuffix = std::move(displaySuffix);
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}
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std::string SourceAccessor::showPath(const CanonPath & path)
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{
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return displayPrefix + path.abs() + displaySuffix;
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}
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}
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