Remove trash directory

This commit is contained in:
Eelco Dolstra 2021-08-16 13:52:19 +02:00
parent 4c0cde95ad
commit 8eac7dfad4
3 changed files with 6 additions and 58 deletions

View file

@ -465,11 +465,9 @@ struct LocalStore::GCState
StorePathSet alive;
bool gcKeepOutputs;
bool gcKeepDerivations;
uint64_t bytesInvalidated;
bool moveToTrash = true;
bool shouldDelete;
GCState(const GCOptions & options, GCResults & results)
: options(options), results(results), bytesInvalidated(0) { }
: options(options), results(results) { }
};
@ -493,15 +491,12 @@ void LocalStore::deletePathRecursive(GCState & state, const Path & path)
{
checkInterrupt();
uint64_t size = 0;
auto storePath = maybeParseStorePath(path);
if (storePath && isValidPath(*storePath)) {
StorePathSet referrers;
queryReferrers(*storePath, referrers);
for (auto & i : referrers)
if (printStorePath(i) != path) deletePathRecursive(state, printStorePath(i));
size = queryPathInfo(*storePath)->narSize;
invalidatePathChecked(*storePath);
}
@ -517,33 +512,10 @@ void LocalStore::deletePathRecursive(GCState & state, const Path & path)
state.results.paths.insert(path);
/* If the path is not a regular file or symlink, move it to the
trash directory. The move is to ensure that later (when we're
not holding the global GC lock) we can delete the path without
being afraid that the path has become alive again. Otherwise
delete it right away. */
if (state.moveToTrash && S_ISDIR(st.st_mode)) {
// Estimate the amount freed using the narSize field. FIXME:
// if the path was not valid, need to determine the actual
// size.
try {
if (chmod(realPath.c_str(), st.st_mode | S_IWUSR) == -1)
throw SysError("making '%1%' writable", realPath);
Path tmp = trashDir + "/" + std::string(baseNameOf(path));
if (rename(realPath.c_str(), tmp.c_str()))
throw SysError("unable to rename '%1%' to '%2%'", realPath, tmp);
state.bytesInvalidated += size;
} catch (SysError & e) {
if (e.errNo == ENOSPC) {
printInfo(format("note: can't create move '%1%': %2%") % realPath % e.msg());
deleteGarbage(state, realPath);
}
}
} else
deleteGarbage(state, realPath);
if (state.results.bytesFreed + state.bytesInvalidated > state.options.maxFreed) {
printInfo(format("deleted or invalidated more than %1% bytes; stopping") % state.options.maxFreed);
if (state.results.bytesFreed > state.options.maxFreed) {
printInfo("deleted more than %d bytes; stopping", state.options.maxFreed);
throw GCLimitReached();
}
}
@ -607,7 +579,7 @@ void LocalStore::tryToDelete(GCState & state, const Path & path)
checkInterrupt();
auto realPath = realStoreDir + "/" + std::string(baseNameOf(path));
if (realPath == linksDir || realPath == trashDir) return;
if (realPath == linksDir) return;
//Activity act(*logger, lvlDebug, format("considering whether to delete '%1%'") % path);
@ -710,9 +682,7 @@ void LocalStore::collectGarbage(const GCOptions & options, GCResults & results)
if (state.shouldDelete)
deletePath(reservedPath);
/* Acquire the global GC root. This prevents
a) New roots from being added.
b) Processes from creating new temporary root files. */
/* Acquire the global GC root. */
AutoCloseFD fdGCLock = openGCLock(ltWrite);
/* Find the roots. Since we've grabbed the GC lock, the set of
@ -739,18 +709,6 @@ void LocalStore::collectGarbage(const GCOptions & options, GCResults & results)
increase, since we hold locks on everything. So everything
that is not reachable from `roots' is garbage. */
if (state.shouldDelete) {
if (pathExists(trashDir)) deleteGarbage(state, trashDir);
try {
createDirs(trashDir);
} catch (SysError & e) {
if (e.errNo == ENOSPC) {
printInfo("note: can't create trash directory: %s", e.msg());
state.moveToTrash = false;
}
}
}
/* Now either delete all garbage paths, or just the specified
paths (for gcDeleteSpecific). */
@ -828,14 +786,6 @@ void LocalStore::collectGarbage(const GCOptions & options, GCResults & results)
return;
}
/* Allow other processes to add to the store from here on. */
fdGCLock = -1;
fds.clear();
/* Delete the trash directory. */
printInfo(format("deleting '%1%'") % trashDir);
deleteGarbage(state, trashDir);
/* Clean up the links directory. */
if (options.action == GCOptions::gcDeleteDead || options.action == GCOptions::gcDeleteSpecific) {
printInfo("deleting unused links...");

View file

@ -145,7 +145,6 @@ LocalStore::LocalStore(const Params & params)
, linksDir(realStoreDir + "/.links")
, reservedPath(dbDir + "/reserved")
, schemaPath(dbDir + "/schema")
, trashDir(realStoreDir + "/trash")
, tempRootsDir(stateDir + "/temproots")
, fnTempRoots(fmt("%s/%d", tempRootsDir, getpid()))
, locksHeld(tokenizeString<PathSet>(getEnv("NIX_HELD_LOCKS").value_or("")))

View file

@ -87,7 +87,6 @@ public:
const Path linksDir;
const Path reservedPath;
const Path schemaPath;
const Path trashDir;
const Path tempRootsDir;
const Path fnTempRoots;