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* nix-store --dump-db / --load-db to dump/load the Nix DB.

Browse source 
* nix-store --register-validity: option to supply the content hash of
  each path.
* Removed compatibility with Nix <= 0.7 stores.
This commit is contained in:
Eelco Dolstra 2008-01-29 18:17:36 +00:00
parent 5b5a3af983
commit 66c51dc215
9 changed files with 130 additions and 137 deletions
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57
src/nix-store/nix-store.cc
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@ -401,26 +401,31 @@ static void opReadLog(Strings opFlags, Strings opArgs)
}
static void opRegisterValidity(Strings opFlags, Strings opArgs)
static void opDumpDB(Strings opFlags, Strings opArgs)
{
bool reregister = false; // !!! maybe this should be the default
for (Strings::iterator i = opFlags.begin();
i != opFlags.end(); ++i)
if (*i == "--reregister") reregister = true;
else throw UsageError(format("unknown flag `%1%'") % *i);
if (!opFlags.empty()) throw UsageError("unknown flag");
if (!opArgs.empty())
throw UsageError("no arguments expected");
PathSet validPaths = store->queryValidPaths();
/* !!! this isn't streamy; makeValidityRegistration() builds a
potentially gigantic string. */
cout << makeValidityRegistration(validPaths, true, true);
}
if (!opArgs.empty()) throw UsageError("no arguments expected");
static void registerValidity(bool reregister, bool hashGiven, bool canonicalise)
{
ValidPathInfos infos;
while (1) {
ValidPathInfo info = decodeValidPathInfo(cin);
ValidPathInfo info = decodeValidPathInfo(cin, hashGiven);
if (info.path == "") break;
if (!store->isValidPath(info.path) || reregister) {
/* !!! races */
canonicalisePathMetaData(info.path);
info.hash = hashPath(htSHA256, info.path);
if (canonicalise)
canonicalisePathMetaData(info.path);
if (!hashGiven)
info.hash = hashPath(htSHA256, info.path);
infos.push_back(info);
}
}
@ -432,6 +437,32 @@ static void opRegisterValidity(Strings opFlags, Strings opArgs)
}
static void opLoadDB(Strings opFlags, Strings opArgs)
{
if (!opFlags.empty()) throw UsageError("unknown flag");
if (!opArgs.empty())
throw UsageError("no arguments expected");
registerValidity(true, true, false);
}
static void opRegisterValidity(Strings opFlags, Strings opArgs)
{
bool reregister = false; // !!! maybe this should be the default
bool hashGiven = false;
for (Strings::iterator i = opFlags.begin();
i != opFlags.end(); ++i)
if (*i == "--reregister") reregister = true;
else if (*i == "--hash-given") hashGiven = true;
else throw UsageError(format("unknown flag `%1%'") % *i);
if (!opArgs.empty()) throw UsageError("no arguments expected");
registerValidity(reregister, hashGiven, true);
}
static void opCheckValidity(Strings opFlags, Strings opArgs)
{
bool printInvalid = false;
@ -681,6 +712,10 @@ void run(Strings args)
op = opQuery;
else if (arg == "--read-log" || arg == "-l")
op = opReadLog;
else if (arg == "--dump-db")
op = opDumpDB;
else if (arg == "--load-db")
op = opLoadDB;
else if (arg == "--register-validity")
op = opRegisterValidity;
else if (arg == "--check-validity")