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Implement querySubstitutablePathInfos() in the daemon

Browse source 
Also removed querySubstitutablePathInfo().
This commit is contained in:
Eelco Dolstra 2012-07-11 10:43:24 -04:00
parent 6586414bc7
commit eb3036da87
7 changed files with 70 additions and 55 deletions
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60
src/libstore/remote-store.cc
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@ -237,34 +237,48 @@ bool RemoteStore::hasSubstitutes(const Path & path)
}
bool RemoteStore::querySubstitutablePathInfo(const Path & path,
SubstitutablePathInfo & info)
{
openConnection();
if (GET_PROTOCOL_MINOR(daemonVersion) < 3) return false;
writeInt(wopQuerySubstitutablePathInfo, to);
writeString(path, to);
processStderr();
unsigned int reply = readInt(from);
if (reply == 0) return false;
info.deriver = readString(from);
if (info.deriver != "") assertStorePath(info.deriver);
info.references = readStorePaths<PathSet>(from);
info.downloadSize = readLongLong(from);
info.narSize = GET_PROTOCOL_MINOR(daemonVersion) >= 7 ? readLongLong(from) : 0;
return true;
}
void RemoteStore::querySubstitutablePathInfos(const PathSet & paths,
SubstitutablePathInfos & infos)
{
if (paths.empty()) return;
printMsg(lvlError, format("QUERYING %1% (REMOTE)") % showPaths(paths));
foreach (PathSet::const_iterator, i, paths) {
SubstitutablePathInfo info;
if (querySubstitutablePathInfo(*i, info))
openConnection();
if (GET_PROTOCOL_MINOR(daemonVersion) < 3) return;
if (GET_PROTOCOL_MINOR(daemonVersion) < 12) {
foreach (PathSet::const_iterator, i, paths) {
SubstitutablePathInfo info;
writeInt(wopQuerySubstitutablePathInfo, to);
writeString(*i, to);
processStderr();
unsigned int reply = readInt(from);
if (reply == 0) continue;
info.deriver = readString(from);
if (info.deriver != "") assertStorePath(info.deriver);
info.references = readStorePaths<PathSet>(from);
info.downloadSize = readLongLong(from);
info.narSize = GET_PROTOCOL_MINOR(daemonVersion) >= 7 ? readLongLong(from) : 0;
infos[*i] = info;
}
} else {
writeInt(wopQuerySubstitutablePathInfos, to);
writeStrings(paths, to);
processStderr();
unsigned int count = readInt(from);
for (unsigned int n = 0; n < count; n++) {
Path path = readStorePath(from);
SubstitutablePathInfo & info(infos[path]);
info.deriver = readString(from);
if (info.deriver != "") assertStorePath(info.deriver);
info.references = readStorePaths<PathSet>(from);
info.downloadSize = readLongLong(from);
info.narSize = readLongLong(from);
}
}
}