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Factor out GC path deletion so it can be overridden.

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This commit is contained in:
Ben Radford 2023-05-24 11:24:07 +01:00 committed by Ben Radford
parent b852bdb3f8
commit 98edbb9686
2 changed files with 16 additions and 2 deletions
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7
src/libstore/gc-store.hh
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@ -97,6 +97,13 @@ struct GcStore : public virtual Store
* Perform a garbage collection.
*/
virtual void collectGarbage(const GCOptions & options, GCResults & results) = 0;
/**
* Called by `collectGarbage` to recursively delete a path.
* The default implementation simply calls `deletePath`, but it can be
* overridden by stores that wish to provide their own deletion behaviour.
*/
virtual void deleteGCPath(const Path & path, uint64_t & bytesFreed);
};
}

11
src/libstore/gc.cc
View file

@ -654,7 +654,8 @@ void LocalStore::collectGarbage(const GCOptions & options, GCResults & results)
results.paths.insert(path);
uint64_t bytesFreed;
deletePath(realPath, bytesFreed);
deleteGCPath(realPath, bytesFreed);
results.bytesFreed += bytesFreed;
if (results.bytesFreed > options.maxFreed) {
@ -872,7 +873,7 @@ void LocalStore::collectGarbage(const GCOptions & options, GCResults & results)
if (unlink(path.c_str()) == -1)
throw SysError("deleting '%1%'", path);
/* Do not accound for deleted file here. Rely on deletePath()
/* Do not account for deleted file here. Rely on deletePath()
accounting. */
}
@ -890,6 +891,12 @@ void LocalStore::collectGarbage(const GCOptions & options, GCResults & results)
}
void GcStore::deleteGCPath(const Path & path, uint64_t & bytesFreed)
{
deletePath(path, bytesFreed);
}
void LocalStore::autoGC(bool sync)
{
static auto fakeFreeSpaceFile = getEnv("_NIX_TEST_FREE_SPACE_FILE");