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* `nix-store --gc --print-roots': also print the path of the actual

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root symlink, not just its target.  E.g.:

  /nix/var/nix/profiles/system-99-link -> /nix/store/76kwf88657nq7wgk1hx3l1z5q91zb9wd-system
This commit is contained in:
Eelco Dolstra 2009-11-23 17:23:12 +00:00
parent c364d5d1e3
commit ae6bf87273
3 changed files with 16 additions and 17 deletions
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23
src/nix-store/nix-store.cc
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@ -520,6 +520,7 @@ struct PrintFreed
static void opGC(Strings opFlags, Strings opArgs)
{
bool printRoots = false;
GCOptions options;
options.action = GCOptions::gcDeleteDead;
@ -527,7 +528,7 @@ static void opGC(Strings opFlags, Strings opArgs)
/* Do what? */
foreach (Strings::iterator, i, opFlags)
if (*i == "--print-roots") options.action = GCOptions::gcReturnRoots;
if (*i == "--print-roots") printRoots = true;
else if (*i == "--print-live") options.action = GCOptions::gcReturnLive;
else if (*i == "--print-dead") options.action = GCOptions::gcReturnDead;
else if (*i == "--delete") options.action = GCOptions::gcDeleteDead;
@ -539,13 +540,21 @@ static void opGC(Strings opFlags, Strings opArgs)
else throw UsageError(format("bad sub-operation `%1%' in GC") % *i);
if (!opArgs.empty()) throw UsageError("no arguments expected");
PrintFreed freed(options.action == GCOptions::gcDeleteDead, results);
store->collectGarbage(options, results);
if (options.action != GCOptions::gcDeleteDead)
foreach (PathSet::iterator, i, results.paths)
cout << *i << std::endl;
if (printRoots) {
Roots roots = store->findRoots();
foreach (Roots::iterator, i, roots)
cout << i->first << " -> " << i->second << std::endl;
}
else {
PrintFreed freed(options.action == GCOptions::gcDeleteDead, results);
store->collectGarbage(options, results);
if (options.action != GCOptions::gcDeleteDead)
foreach (PathSet::iterator, i, results.paths)
cout << *i << std::endl;
}
}