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https://github.com/privatevoid-net/nix-super.git
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7cb4d0c5b7
It's now up to the caller whether readOnlyMode should be applied. In some contexts (like InputScheme::fetch()), we always need to fetch.
56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
#include "fetch-to-store.hh"
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#include "fetchers.hh"
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#include "cache.hh"
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namespace nix {
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StorePath fetchToStore(
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Store & store,
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const SourcePath & path,
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FetchMode mode,
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std::string_view name,
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ContentAddressMethod method,
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PathFilter * filter,
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RepairFlag repair)
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{
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// FIXME: add an optimisation for the case where the accessor is
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// an FSInputAccessor pointing to a store path.
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std::optional<fetchers::Attrs> cacheKey;
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if (!filter && path.accessor->fingerprint) {
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cacheKey = fetchers::Attrs{
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{"_what", "fetchToStore"},
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{"store", store.storeDir},
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{"name", std::string{name}},
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{"fingerprint", *path.accessor->fingerprint},
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{"method", std::string{method.render()}},
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{"path", path.path.abs()}
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};
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if (auto res = fetchers::getCache()->lookup(store, *cacheKey)) {
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debug("store path cache hit for '%s'", path);
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return res->second;
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}
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} else
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debug("source path '%s' is uncacheable", path);
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Activity act(*logger, lvlChatty, actUnknown,
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fmt(mode == FetchMode::DryRun ? "hashing '%s'" : "copying '%s' to the store", path));
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auto filter2 = filter ? *filter : defaultPathFilter;
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auto storePath =
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mode == FetchMode::DryRun
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? store.computeStorePath(
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name, *path.accessor, path.path, method, HashAlgorithm::SHA256, {}, filter2).first
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: store.addToStore(
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name, *path.accessor, path.path, method, HashAlgorithm::SHA256, {}, filter2, repair);
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if (cacheKey && mode == FetchMode::Copy)
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fetchers::getCache()->add(store, *cacheKey, {}, storePath, true);
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return storePath;
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}
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}
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