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cc24766fa6
For example, instead of doing
#include "nix/store-config.hh"
#include "nix/derived-path.hh"
Now do
#include "nix/store/config.hh"
#include "nix/store/derived-path.hh"
This was originally planned in the issue, and also recent requested by
Eelco.
Most of the change is purely mechanical. There is just one small
additional issue. See how, in the example above, we took this
opportunity to also turn `<comp>-config.hh` into `<comp>/config.hh`.
Well, there was already a `nix/util/config.{cc,hh}`. Even though there
is not a public configuration header for libutil (which also would be
called `nix/util/config.{cc,hh}`) that's still confusing, To avoid any
such confusion, we renamed that to `nix/util/configuration.{cc,hh}`.
Finally, note that the libflake headers already did this, so we didn't
need to do anything to them. We wouldn't want to mistakenly get
`nix/flake/flake/flake.hh`!
Progress on #7876
72 lines
1.7 KiB
C++
72 lines
1.7 KiB
C++
#include "nix/store/path-references.hh"
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#include "nix/util/hash.hh"
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#include "nix/util/archive.hh"
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#include <map>
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#include <cstdlib>
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#include <mutex>
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#include <algorithm>
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namespace nix {
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PathRefScanSink::PathRefScanSink(StringSet && hashes, std::map<std::string, StorePath> && backMap)
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: RefScanSink(std::move(hashes))
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, backMap(std::move(backMap))
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{ }
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PathRefScanSink PathRefScanSink::fromPaths(const StorePathSet & refs)
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{
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StringSet hashes;
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std::map<std::string, StorePath> backMap;
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for (auto & i : refs) {
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std::string hashPart(i.hashPart());
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auto inserted = backMap.emplace(hashPart, i).second;
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assert(inserted);
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hashes.insert(hashPart);
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}
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return PathRefScanSink(std::move(hashes), std::move(backMap));
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}
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StorePathSet PathRefScanSink::getResultPaths()
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{
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/* Map the hashes found back to their store paths. */
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StorePathSet found;
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for (auto & i : getResult()) {
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auto j = backMap.find(i);
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assert(j != backMap.end());
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found.insert(j->second);
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}
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return found;
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}
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std::pair<StorePathSet, HashResult> scanForReferences(
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const std::string & path,
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const StorePathSet & refs)
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{
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HashSink hashSink { HashAlgorithm::SHA256 };
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auto found = scanForReferences(hashSink, path, refs);
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auto hash = hashSink.finish();
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return std::pair<StorePathSet, HashResult>(found, hash);
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}
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StorePathSet scanForReferences(
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Sink & toTee,
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const Path & path,
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const StorePathSet & refs)
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{
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PathRefScanSink refsSink = PathRefScanSink::fromPaths(refs);
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TeeSink sink { refsSink, toTee };
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/* Look for the hashes in the NAR dump of the path. */
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dumpPath(path, sink);
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return refsSink.getResultPaths();
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}
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}
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