#include "misc.hh" #include "store-api.hh" #include "local-store.hh" #include "globals.hh" namespace nix { Derivation derivationFromPath(StoreAPI & store, const Path & drvPath) { assertStorePath(drvPath); store.ensurePath(drvPath); return readDerivation(drvPath); } void computeFSClosure(StoreAPI & store, const Path & path, PathSet & paths, bool flipDirection, bool includeOutputs, bool includeDerivers) { if (paths.find(path) != paths.end()) return; paths.insert(path); PathSet edges; if (flipDirection) { store.queryReferrers(path, edges); if (includeOutputs) { PathSet derivers = store.queryValidDerivers(path); foreach (PathSet::iterator, i, derivers) edges.insert(*i); } if (includeDerivers && isDerivation(path)) { PathSet outputs = store.queryDerivationOutputs(path); foreach (PathSet::iterator, i, outputs) if (store.isValidPath(*i) && store.queryDeriver(*i) == path) edges.insert(*i);
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