forked from lix-project/lix
96de272b48
`derivations.cc', etc. * Store the SHA-256 content hash of store paths in the database after they have been built/added. This is so that we can check whether the store has been messed with (a la `rpm --verify'). * When registering path validity, verify that the closure property holds.
65 lines
1.6 KiB
C++
65 lines
1.6 KiB
C++
#include "build.hh"
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Derivation derivationFromPath(const Path & drvPath)
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{
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assertStorePath(drvPath);
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ensurePath(drvPath);
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ATerm t = ATreadFromNamedFile(drvPath.c_str());
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if (!t) throw Error(format("cannot read aterm from `%1%'") % drvPath);
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return parseDerivation(t);
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}
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void computeFSClosure(const Path & storePath,
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PathSet & paths)
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{
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if (paths.find(storePath) != paths.end()) return;
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paths.insert(storePath);
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PathSet references;
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queryReferences(storePath, references);
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for (PathSet::iterator i = references.begin();
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i != references.end(); ++i)
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computeFSClosure(*i, paths);
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}
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void storePathRequisites(const Path & storePath,
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bool includeOutputs, PathSet & paths)
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{
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checkInterrupt();
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if (paths.find(storePath) != paths.end()) return;
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if (isDerivation(storePath)) {
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paths.insert(storePath);
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Derivation drv = derivationFromPath(storePath);
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for (PathSet::iterator i = drv.inputDrvs.begin();
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i != drv.inputDrvs.end(); ++i)
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storePathRequisites(*i, includeOutputs, paths);
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for (PathSet::iterator i = drv.inputSrcs.begin();
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i != drv.inputSrcs.end(); ++i)
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storePathRequisites(*i, includeOutputs, paths);
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if (includeOutputs) {
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for (DerivationOutputs::iterator i = drv.outputs.begin();
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i != drv.outputs.end(); ++i)
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if (isValidPath(i->second.path))
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storePathRequisites(i->second.path, includeOutputs, paths);
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}
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}
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else {
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computeFSClosure(storePath, paths);
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}
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}
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