From 87295b9844090d76173a9f68341a4b17a7e1e7b9 Mon Sep 17 00:00:00 2001 From: Eelco Dolstra Date: Mon, 21 Mar 2016 15:09:03 +0100 Subject: [PATCH] Drop support for upgrading from Nix <= 0.12 --- src/libstore/local-store.cc | 91 +++---------------------------------- 1 file changed, 7 insertions(+), 84 deletions(-) diff --git a/src/libstore/local-store.cc b/src/libstore/local-store.cc index 8a2b7bb91..3d10b3387 100644 --- a/src/libstore/local-store.cc +++ b/src/libstore/local-store.cc @@ -331,6 +331,12 @@ LocalStore::LocalStore() "which is no longer supported. To convert to the new format,\n" "please upgrade Nix to version 0.12 first."); + if (curSchema < 6) + throw Error( + "Your Nix store has a database in flat file format,\n" + "which is no longer supported. To convert to the new format,\n" + "please upgrade Nix to version 1.11 first."); + if (!lockFile(globalLock, ltWrite, false)) { printMsg(lvlError, "waiting for exclusive access to the Nix store..."); lockFile(globalLock, ltWrite, true); @@ -340,8 +346,7 @@ LocalStore::LocalStore() have performed the upgrade already. */ curSchema = getSchema(); - if (curSchema < 6) upgradeStore6(); - else if (curSchema < 7) { upgradeStore7(); openDB(true); } + if (curSchema < 7) { upgradeStore7(); openDB(true); } writeFile(schemaPath, (format("%1%") % nixSchemaVersion).str()); @@ -1879,88 +1884,6 @@ void LocalStore::markContentsGood(const Path & path) } -/* Functions for upgrading from the pre-SQLite database. */ - -PathSet LocalStore::queryValidPathsOld() -{ - PathSet paths; - for (auto & i : readDirectory(settings.nixDBPath + "/info")) - if (i.name.at(0) != '.') paths.insert(settings.nixStore + "/" + i.name); - return paths; -} - - -ValidPathInfo LocalStore::queryPathInfoOld(const Path & path) -{ - ValidPathInfo res; - res.path = path; - - /* Read the info file. */ - string baseName = baseNameOf(path); - Path infoFile = (format("%1%/info/%2%") % settings.nixDBPath % baseName).str(); - if (!pathExists(infoFile)) - throw Error(format("path ‘%1%’ is not valid") % path); - string info = readFile(infoFile); - - /* Parse it. */ - Strings lines = tokenizeString(info, "\n"); - - for (auto & i : lines) { - string::size_type p = i.find(':'); - if (p == string::npos) - throw Error(format("corrupt line in ‘%1%’: %2%") % infoFile % i); - string name(i, 0, p); - string value(i, p + 2); - if (name == "References") { - Strings refs = tokenizeString(value, " "); - res.references = PathSet(refs.begin(), refs.end()); - } else if (name == "Deriver") { - res.deriver = value; - } else if (name == "Hash") { - res.narHash = parseHashField(path, value); - } else if (name == "Registered-At") { - int n = 0; - string2Int(value, n); - res.registrationTime = n; - } - } - - return res; -} - - -/* Upgrade from schema 5 (Nix 0.12) to schema 6 (Nix >= 0.15). */ -void LocalStore::upgradeStore6() -{ - printMsg(lvlError, "upgrading Nix store to new schema (this may take a while)..."); - - openDB(true); - - PathSet validPaths = queryValidPathsOld(); - - SQLiteTxn txn(db); - - for (auto & i : validPaths) { - addValidPath(queryPathInfoOld(i), false); - std::cerr << "."; - } - - std::cerr << "|"; - - for (auto & i : validPaths) { - ValidPathInfo info = queryPathInfoOld(i); - unsigned long long referrer = queryValidPathId(i); - for (auto & j : info.references) - addReference(referrer, queryValidPathId(j)); - std::cerr << "."; - } - - std::cerr << "\n"; - - txn.commit(); -} - - #if defined(FS_IOC_SETFLAGS) && defined(FS_IOC_GETFLAGS) && defined(FS_IMMUTABLE_FL) static void makeMutable(const Path & path)