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Drop support for upgrading from Nix <= 0.12

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This commit is contained in:
Eelco Dolstra 2016-03-21 15:09:03 +01:00
parent 141a65de09
commit 87295b9844
1 changed files with 7 additions and 84 deletions
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91
src/libstore/local-store.cc
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@ -331,6 +331,12 @@ LocalStore::LocalStore()
"which is no longer supported. To convert to the new format,\n" "which is no longer supported. To convert to the new format,\n"
"please upgrade Nix to version 0.12 first."); "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)) { if (!lockFile(globalLock, ltWrite, false)) {
printMsg(lvlError, "waiting for exclusive access to the Nix store..."); printMsg(lvlError, "waiting for exclusive access to the Nix store...");
lockFile(globalLock, ltWrite, true); lockFile(globalLock, ltWrite, true);
@ -340,8 +346,7 @@ LocalStore::LocalStore()
have performed the upgrade already. */ have performed the upgrade already. */
curSchema = getSchema(); curSchema = getSchema();
if (curSchema < 6) upgradeStore6(); if (curSchema < 7) { upgradeStore7(); openDB(true); }
else if (curSchema < 7) { upgradeStore7(); openDB(true); }
writeFile(schemaPath, (format("%1%") % nixSchemaVersion).str()); 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<Strings>(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<Strings>(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) #if defined(FS_IOC_SETFLAGS) && defined(FS_IOC_GETFLAGS) && defined(FS_IMMUTABLE_FL)
static void makeMutable(const Path & path) static void makeMutable(const Path & path)