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* Print some progress info during the early GC stages.

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This commit is contained in:
Eelco Dolstra 2008-06-13 17:21:20 +00:00
parent 194c66eeeb
commit 30c9f909b2
2 changed files with 9 additions and 1 deletions
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8
src/libstore/gc.cc
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@ -455,6 +455,7 @@ void LocalStore::collectGarbage(GCAction action, const PathSet & pathsToDelete,
/* Find the roots. Since we've grabbed the GC lock, the set of
permanent roots cannot increase now. */
printMsg(lvlError, format("finding garbage collector roots..."));
Roots rootMap = ignoreLiveness ? Roots() : nix::findRoots(true);
PathSet roots;
@ -475,6 +476,7 @@ void LocalStore::collectGarbage(GCAction action, const PathSet & pathsToDelete,
/* Determine the live paths which is just the closure of the
roots under the `references' relation. */
printMsg(lvlError, format("computing live paths..."));
PathSet livePaths;
for (PathSet::const_iterator i = roots.begin(); i != roots.end(); ++i)
computeFSClosure(canonPath(*i), livePaths);
@ -548,6 +550,7 @@ void LocalStore::collectGarbage(GCAction action, const PathSet & pathsToDelete,
/* Read the Nix store directory to find all currently existing
paths. */
printMsg(lvlError, format("reading the Nix store..."));
PathSet storePathSet;
if (action != gcDeleteSpecific) {
Paths entries = readDirectory(nixStore);
@ -567,9 +570,14 @@ void LocalStore::collectGarbage(GCAction action, const PathSet & pathsToDelete,
which things can be deleted safely. */
/* !!! when we have multiple output paths per derivation, this
will not work anymore because we get cycles. */
printMsg(lvlError, format("toposorting..."));
Paths storePaths = topoSortPaths(storePathSet);
/* Try to delete store paths in the topologically sorted order. */
printMsg(lvlError, action == gcReturnDead
? format("looking for garbage...")
: format("deleting garbage..."));
for (Paths::iterator i = storePaths.begin(); i != storePaths.end(); ++i) {
debug(format("considering deletion of `%1%'") % *i);