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* `nix-store --gc --print-dead': print the total size of the store

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objects that would be freed.
This commit is contained in:
Eelco Dolstra 2006-08-11 20:26:49 +00:00
parent 92f7dfa5b7
commit 4250b641d8
2 changed files with 19 additions and 5 deletions
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15
src/nix-store/main.cc
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@ -492,13 +492,17 @@ static void opCheckValidity(Strings opFlags, Strings opArgs)
struct PrintFreed
{
bool show;
bool show, dryRun;
unsigned long long bytesFreed;
PrintFreed(bool _show) : bytesFreed(0), show(_show) { }
PrintFreed(bool show, bool dryRun)
: bytesFreed(0), show(show), dryRun(dryRun) { }
~PrintFreed()
{
if (show)
cout << format("%d bytes freed (%.2f MiB)\n")
cout << format(
(dryRun
? "%d bytes would be freed (%.2f MiB)\n"
: "%d bytes freed (%.2f MiB)\n"))
% bytesFreed % (bytesFreed / (1024.0 * 1024.0));
}
};
@ -518,7 +522,8 @@ static void opGC(Strings opFlags, Strings opArgs)
else throw UsageError(format("bad sub-operation `%1%' in GC") % *i);
PathSet result;
PrintFreed freed(action == gcDeleteDead);
PrintFreed freed(action == gcDeleteDead || action == gcReturnDead,
action == gcReturnDead);
collectGarbage(action, PathSet(), false, result, freed.bytesFreed);
if (action != gcDeleteDead) {
@ -546,7 +551,7 @@ static void opDelete(Strings opFlags, Strings opArgs)
pathsToDelete.insert(fixPath(*i));
PathSet dummy;
PrintFreed freed(true);
PrintFreed freed(true, false);
collectGarbage(gcDeleteSpecific, pathsToDelete, ignoreLiveness,
dummy, freed.bytesFreed);
}