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authorEelco Dolstra <e.dolstra@tudelft.nl>2003-10-22 10:53:46 +0000
committerEelco Dolstra <e.dolstra@tudelft.nl>2003-10-22 10:53:46 +0000
commit143427f90b9b54bd957cd50a2110157ddfedeeaf (patch)
treefdecfbc1439164cc7051d5f1b75633192af3c305
parent4a8948b7a60e751dd809f279f1baa434ea09a4d3 (diff)
* Dead code removal.
-rw-r--r--src/libnix/normalise.cc94
1 files changed, 0 insertions, 94 deletions
diff --git a/src/libnix/normalise.cc b/src/libnix/normalise.cc
index be71081ff..196fcad2e 100644
--- a/src/libnix/normalise.cc
+++ b/src/libnix/normalise.cc
@@ -18,100 +18,6 @@ static Path useSuccessor(const Path & path)
}
-#if 0
-/* Return a path whose contents have the given hash. If target is
- not empty, ensure that such a path is realised in target (if
- necessary by copying from another location). If prefix is not
- empty, only return a path that is an descendent of prefix. */
-
-string expandId(const FSId & id, const string & target = "",
- const string & prefix = "/", FSIdSet pending = FSIdSet(),
- bool ignoreSubstitutes = false)
-{
- xxx
-}
-
-
-string expandId(const FSId & id, const string & target,
- const string & prefix, FSIdSet pending, bool ignoreSubstitutes)
-{
- Nest nest(lvlDebug, format("expanding %1%") % (string) id);
-
- Strings paths;
-
- if (!target.empty() && !isInPrefix(target, prefix))
- abort();
-
- nixDB.queryStrings(noTxn, dbId2Paths, id, paths);
-
- /* Pick one equal to `target'. */
- if (!target.empty()) {
-
- for (Strings::iterator i = paths.begin();
- i != paths.end(); i++)
- {
- string path = *i;
- if (path == target && pathExists(path))
- return path;
- }
-
- }
-
- /* Arbitrarily pick the first one that exists and isn't stale. */
- for (Strings::iterator it = paths.begin();
- it != paths.end(); it++)
- {
- string path = *it;
- if (isInPrefix(path, prefix) && pathExists(path)) {
- if (target.empty())
- return path;
- else {
- /* Acquire a lock on the target path. */
- Strings lockPaths;
- lockPaths.push_back(target);
- PathLocks outputLock(lockPaths);
-
- /* Copy. */
- copyPath(path, target);
-
- /* Register the target path. */
- Transaction txn(nixDB);
- registerPath(txn, target, id);
- txn.commit();
-
- return target;
- }
- }
- }
-
- if (!ignoreSubstitutes) {
-
- if (pending.find(id) != pending.end())
- throw Error(format("id %1% already being expanded") % (string) id);
- pending.insert(id);
-
- /* Try to realise the substitutes, but only if this id is not
- already being realised by a substitute. */
- Strings subs;
- nixDB.queryStrings(noTxn, dbSubstitutes, id, subs); /* non-existence = ok */
-
- for (Strings::iterator it = subs.begin(); it != subs.end(); it++) {
- FSId subId = parseHash(*it);
-
- debug(format("trying substitute %1%") % (string) subId);
-
- realiseClosure(normaliseNixExpr(subId, pending), pending);
-
- return expandId(id, target, prefix, pending);
- }
-
- }
-
- throw Error(format("cannot expand id `%1%'") % (string) id);
-}
-#endif
-
-
Path normaliseNixExpr(const Path & _nePath, PathSet pending)
{
Nest nest(lvlTalkative,