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* In ‘nix-store --verify --check-contents’, repair missing hashes

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rather than complain about them.
This commit is contained in:
Eelco Dolstra 2011-12-02 17:52:18 +00:00
parent 3964d95abf
commit 000160f5b9
1 changed files with 20 additions and 4 deletions
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24
src/libstore/local-store.cc
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@ -366,7 +366,7 @@ void LocalStore::openDB(bool create)
stmtRegisterValidPath.create(db,
"insert into ValidPaths (path, hash, registrationTime, deriver, narSize) values (?, ?, ?, ?, ?);");
stmtUpdatePathInfo.create(db,
"update ValidPaths set narSize = ? where path = ?;");
"update ValidPaths set narSize = ?, hash = ? where path = ?;");
stmtAddReference.create(db,
"insert or replace into Refs (referrer, reference) values (?, ?);");
stmtQueryPathInfo.create(db,
@ -683,7 +683,7 @@ ValidPathInfo LocalStore::queryPathInfo(const Path & path)
}
/* Update path info in the database. Currently only updated the
/* Update path info in the database. Currently only updates the
narSize field. */
void LocalStore::updatePathInfo(const ValidPathInfo & info)
{
@ -692,6 +692,7 @@ void LocalStore::updatePathInfo(const ValidPathInfo & info)
stmtUpdatePathInfo.bind64(info.narSize);
else
stmtUpdatePathInfo.bind(); // null
stmtUpdatePathInfo.bind("sha256:" + printHash(info.hash));
stmtUpdatePathInfo.bind(info.path);
if (sqlite3_step(stmtUpdatePathInfo) != SQLITE_DONE)
throwSQLiteError(db, format("updating info of path `%1%' in database") % info.path);
@ -1386,6 +1387,8 @@ void LocalStore::verifyStore(bool checkContents)
if (checkContents) {
printMsg(lvlInfo, "checking hashes...");
Hash nullHash(htSHA256);
foreach (PathSet::iterator, i, validPaths) {
try {
ValidPathInfo info = queryPathInfo(*i);
@ -1394,17 +1397,30 @@ void LocalStore::verifyStore(bool checkContents)
printMsg(lvlTalkative, format("checking contents of `%1%'") % *i);
HashResult current = hashPath(info.hash.type, *i);
if (current.first != info.hash) {
if (info.hash != nullHash && info.hash != current.first) {
printMsg(lvlError, format("path `%1%' was modified! "
"expected hash `%2%', got `%3%'")
% *i % printHash(info.hash) % printHash(current.first));
} else {
bool update = false;
/* Fill in missing hashes. */
if (info.hash == nullHash) {
printMsg(lvlError, format("fixing missing hash on `%1%'") % *i);
info.hash = current.first;
update = true;
}
/* Fill in missing narSize fields (from old stores). */
if (info.narSize == 0) {
printMsg(lvlError, format("updating size field on `%1%' to %2%") % *i % current.second);
info.narSize = current.second;
updatePathInfo(info);
update = true;
}
if (update) updatePathInfo(info);
}
} catch (Error & e) {