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Merge pull request #767 from mogorman/garbage_collect_keep_last_few

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Implement --delete-generations + flag for keeping last N number of gens
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Peter Simons 2018-05-31 10:00:21 +02:00 • committed by GitHub
commit 93aa3bea2e
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4 changed files with 42 additions and 6 deletions
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23
src/libstore/profiles.cc
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@ -157,6 +157,29 @@ void deleteGenerations(const Path & profile, const std::set<unsigned int> & gens
}
}
void deleteGenerationsGreaterThan(const Path & profile, int max, bool dryRun)
{
PathLocks lock;
lockProfile(lock, profile);
int curGen;
bool fromCurGen = false;
Generations gens = findGenerations(profile, curGen);
for (auto i = gens.rbegin(); i != gens.rend(); ++i) {
if (i->number == curGen) {
fromCurGen = true;
max--;
continue;
}
if (fromCurGen) {
if (max) {
max--;
continue;
}
deleteGeneration2(profile, i->number, dryRun);
}
}
}
void deleteOldGenerations(const Path & profile, bool dryRun)
{

2
src/libstore/profiles.hh
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@ -39,6 +39,8 @@ void deleteGeneration(const Path & profile, unsigned int gen);
void deleteGenerations(const Path & profile, const std::set<unsigned int> & gensToDelete, bool dryRun);
void deleteGenerationsGreaterThan(const Path & profile, const int max, bool dryRun);
void deleteOldGenerations(const Path & profile, bool dryRun);
void deleteGenerationsOlderThan(const Path & profile, time_t t, bool dryRun);