wroclaw-git-backups/nix
1
0
Fork 0
mirror of https://github.com/NixOS/nix synced 2025-06-28 22:01:15 +02:00
Code Activity

* Maintain the references/referers relation also for derivations.

Browse source 
This simplifies garbage collection and `nix-store --query
  --requisites' since we no longer need to treat derivations
  specially.

* Better maintaining of the invariants, e.g., setReferences() can only
  be called on a valid/substitutable path.
This commit is contained in:
Eelco Dolstra 2005-01-25 21:28:25 +00:00
parent 2a2756b856
commit a24b78e9f1
8 changed files with 84 additions and 82 deletions
Download patch file Download diff file Expand all files Collapse all files

41
src/libstore/misc.cc
View file

@ -27,44 +27,3 @@ void computeFSClosure(const Path & storePath,
i != references.end(); ++i)
computeFSClosure(*i, paths, flipDirection);
}
void storePathRequisites(const Path & storePath,
bool includeOutputs, PathSet & paths)
{
checkInterrupt();
if (paths.find(storePath) != paths.end()) return;
if (isDerivation(storePath)) {
paths.insert(storePath);
Derivation drv = derivationFromPath(storePath);
for (DerivationInputs::iterator i = drv.inputDrvs.begin();
i != drv.inputDrvs.end(); ++i)
/* !!! Maybe this is too strict, since it will include
*all* output paths of the input derivation, not just
the ones needed by this derivation. */
storePathRequisites(i->first, includeOutputs, paths);
for (PathSet::iterator i = drv.inputSrcs.begin();
i != drv.inputSrcs.end(); ++i)
storePathRequisites(*i, includeOutputs, paths);
if (includeOutputs) {
for (DerivationOutputs::iterator i = drv.outputs.begin();
i != drv.outputs.end(); ++i)
if (isValidPath(i->second.path))
storePathRequisites(i->second.path, includeOutputs, paths);
}
}
else {
computeFSClosure(storePath, paths);
}
}