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* `nix-store --gc' prints out the number of bytes freed on stdout

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(even when it is interrupted by a signal).
This commit is contained in:
Eelco Dolstra 2005-12-15 21:11:39 +00:00
parent 5144f750c4
commit 530b27df1e
7 changed files with 45 additions and 11 deletions
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17
src/nix-store/main.cc
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@ -489,6 +489,20 @@ static void opCheckValidity(Strings opFlags, Strings opArgs)
}
struct PrintFreed
{
bool show;
unsigned long long bytesFreed;
PrintFreed(bool _show) : bytesFreed(0), show(_show) { }
~PrintFreed()
{
if (show)
cout << format("%d bytes freed (%.2f MiB)\n")
% bytesFreed % (bytesFreed / (1024.0 * 1024.0));
}
};
static void opGC(Strings opFlags, Strings opArgs)
{
GCAction action = gcDeleteDead;
@ -503,7 +517,8 @@ static void opGC(Strings opFlags, Strings opArgs)
else throw UsageError(format("bad sub-operation `%1%' in GC") % *i);
PathSet result;
collectGarbage(action, result);
PrintFreed freed(action == gcDeleteDead);
collectGarbage(action, result, freed.bytesFreed);
if (action != gcDeleteDead) {
for (PathSet::iterator i = result.begin(); i != result.end(); ++i)