131 lines
2.8 KiB
C++
131 lines
2.8 KiB
C++
#pragma once
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#include "types.hh"
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namespace nix {
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class Store;
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struct Hash;
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class StorePath
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{
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std::string baseName;
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StorePath(const StorePath & path)
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: baseName(path.baseName)
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{ }
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public:
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/* Size of the hash part of store paths, in base-32 characters. */
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constexpr static size_t HashLen = 32; // i.e. 160 bits
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StorePath() = delete;
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StorePath(std::string_view baseName);
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StorePath(const Hash & hash, std::string_view name);
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StorePath(StorePath && path)
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: baseName(std::move(path.baseName))
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{ }
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StorePath & operator = (StorePath && path)
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{
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baseName = std::move(path.baseName);
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return *this;
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}
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std::string_view to_string() const
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{
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return baseName;
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}
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bool operator < (const StorePath & other) const
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{
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return baseName < other.baseName;
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}
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bool operator == (const StorePath & other) const
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{
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return baseName == other.baseName;
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}
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bool operator != (const StorePath & other) const
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{
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return baseName != other.baseName;
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}
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StorePath clone() const
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{
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return StorePath(*this);
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}
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/* Check whether a file name ends with the extension for
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derivations. */
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bool isDerivation() const;
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std::string_view name() const
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{
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return std::string_view(baseName).substr(HashLen + 1);
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}
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std::string_view hashPart() const
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{
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return std::string_view(baseName).substr(0, HashLen);
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}
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static StorePath dummy;
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};
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typedef std::set<StorePath> StorePathSet;
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typedef std::vector<StorePath> StorePaths;
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StorePathSet cloneStorePathSet(const StorePathSet & paths);
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StorePathSet storePathsToSet(const StorePaths & paths);
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StorePathSet singleton(const StorePath & path);
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/* Extension of derivations in the Nix store. */
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const std::string drvExtension = ".drv";
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enum struct FileIngestionMethod : uint8_t {
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Flat = false,
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Recursive = true
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};
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struct StorePathWithOutputs
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{
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StorePath path;
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std::set<std::string> outputs;
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StorePathWithOutputs(const StorePath & path, const std::set<std::string> & outputs = {})
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: path(path.clone()), outputs(outputs)
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{ }
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StorePathWithOutputs(StorePath && path, std::set<std::string> && outputs)
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: path(std::move(path)), outputs(std::move(outputs))
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{ }
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StorePathWithOutputs(const StorePathWithOutputs & other)
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: path(other.path.clone()), outputs(other.outputs)
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{ }
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std::string to_string(const Store & store) const;
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};
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std::pair<std::string_view, StringSet> parsePathWithOutputs(std::string_view s);
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}
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namespace std {
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template<> struct hash<nix::StorePath> {
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std::size_t operator()(const nix::StorePath & path) const noexcept
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{
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return * (std::size_t *) path.to_string().data();
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}
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};
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}
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