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Implement --delete-generations + flag for keeping last N number of generations

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This commit is contained in:
Matthew O'Gorman 2016-01-06 20:15:19 -05:00
parent 4a000cbb39
commit 429154b74c
4 changed files with 32 additions and 2 deletions
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src/nix-env/nix-env.cc
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@ -1284,6 +1284,8 @@ static void opDeleteGenerations(Globals & globals, Strings opFlags, Strings opAr
deleteOldGenerations(globals.profile, globals.dryRun);
} else if (opArgs.size() == 1 && opArgs.front().find('d') != string::npos) {
deleteGenerationsOlderThan(globals.profile, opArgs.front(), globals.dryRun);
} else if (opArgs.size() == 1 && opArgs.front().find('+') != string::npos) {
deleteGenerationsGreaterThan(globals.profile, opArgs.front(), globals.dryRun);
} else {
std::set<unsigned int> gens;
for (auto & i : opArgs) {