forked from lix-project/lix
fac0c2d54a
The idea is it's always more flexible to consumer a `Source` than a plain string, and it might even reduce memory consumption. I also looked at `addToStoreFromDump` with its `// FIXME: remove?`, but the worked needed for that is far more up for interpretation, so I punted for now.
959 lines
28 KiB
C++
959 lines
28 KiB
C++
#include "crypto.hh"
|
|
#include "globals.hh"
|
|
#include "store-api.hh"
|
|
#include "util.hh"
|
|
#include "nar-info-disk-cache.hh"
|
|
#include "thread-pool.hh"
|
|
#include "json.hh"
|
|
#include "derivations.hh"
|
|
#include "url.hh"
|
|
|
|
#include <future>
|
|
|
|
|
|
namespace nix {
|
|
|
|
|
|
bool Store::isInStore(const Path & path) const
|
|
{
|
|
return isInDir(path, storeDir);
|
|
}
|
|
|
|
|
|
Path Store::toStorePath(const Path & path) const
|
|
{
|
|
if (!isInStore(path))
|
|
throw Error(format("path '%1%' is not in the Nix store") % path);
|
|
Path::size_type slash = path.find('/', storeDir.size() + 1);
|
|
if (slash == Path::npos)
|
|
return path;
|
|
else
|
|
return Path(path, 0, slash);
|
|
}
|
|
|
|
|
|
Path Store::followLinksToStore(std::string_view _path) const
|
|
{
|
|
Path path = absPath(std::string(_path));
|
|
while (!isInStore(path)) {
|
|
if (!isLink(path)) break;
|
|
string target = readLink(path);
|
|
path = absPath(target, dirOf(path));
|
|
}
|
|
if (!isInStore(path))
|
|
throw NotInStore("path '%1%' is not in the Nix store", path);
|
|
return path;
|
|
}
|
|
|
|
|
|
StorePath Store::followLinksToStorePath(std::string_view path) const
|
|
{
|
|
return parseStorePath(toStorePath(followLinksToStore(path)));
|
|
}
|
|
|
|
|
|
StorePathWithOutputs Store::followLinksToStorePathWithOutputs(std::string_view path) const
|
|
{
|
|
auto [path2, outputs] = nix::parsePathWithOutputs(path);
|
|
return StorePathWithOutputs(followLinksToStorePath(path2), std::move(outputs));
|
|
}
|
|
|
|
|
|
string storePathToHash(const Path & path)
|
|
{
|
|
auto base = baseNameOf(path);
|
|
assert(base.size() >= storePathHashLen);
|
|
return string(base, 0, storePathHashLen);
|
|
}
|
|
|
|
|
|
/* Store paths have the following form:
|
|
|
|
<store>/<h>-<name>
|
|
|
|
where
|
|
|
|
<store> = the location of the Nix store, usually /nix/store
|
|
|
|
<name> = a human readable name for the path, typically obtained
|
|
from the name attribute of the derivation, or the name of the
|
|
source file from which the store path is created. For derivation
|
|
outputs other than the default "out" output, the string "-<id>"
|
|
is suffixed to <name>.
|
|
|
|
<h> = base-32 representation of the first 160 bits of a SHA-256
|
|
hash of <s>; the hash part of the store name
|
|
|
|
<s> = the string "<type>:sha256:<h2>:<store>:<name>";
|
|
note that it includes the location of the store as well as the
|
|
name to make sure that changes to either of those are reflected
|
|
in the hash (e.g. you won't get /nix/store/<h>-name1 and
|
|
/nix/store/<h>-name2 with equal hash parts).
|
|
|
|
<type> = one of:
|
|
"text:<r1>:<r2>:...<rN>"
|
|
for plain text files written to the store using
|
|
addTextToStore(); <r1> ... <rN> are the references of the
|
|
path.
|
|
"source"
|
|
for paths copied to the store using addToStore() when recursive
|
|
= true and hashAlgo = "sha256"
|
|
"output:<id>"
|
|
for either the outputs created by derivations, OR paths copied
|
|
to the store using addToStore() with recursive != true or
|
|
hashAlgo != "sha256" (in that case "source" is used; it's
|
|
silly, but it's done that way for compatibility). <id> is the
|
|
name of the output (usually, "out").
|
|
|
|
<h2> = base-16 representation of a SHA-256 hash of:
|
|
if <type> = "text:...":
|
|
the string written to the resulting store path
|
|
if <type> = "source":
|
|
the serialisation of the path from which this store path is
|
|
copied, as returned by hashPath()
|
|
if <type> = "output:<id>":
|
|
for non-fixed derivation outputs:
|
|
the derivation (see hashDerivationModulo() in
|
|
primops.cc)
|
|
for paths copied by addToStore() or produced by fixed-output
|
|
derivations:
|
|
the string "fixed:out:<rec><algo>:<hash>:", where
|
|
<rec> = "r:" for recursive (path) hashes, or "" for flat
|
|
(file) hashes
|
|
<algo> = "md5", "sha1" or "sha256"
|
|
<hash> = base-16 representation of the path or flat hash of
|
|
the contents of the path (or expected contents of the
|
|
path for fixed-output derivations)
|
|
|
|
It would have been nicer to handle fixed-output derivations under
|
|
"source", e.g. have something like "source:<rec><algo>", but we're
|
|
stuck with this for now...
|
|
|
|
The main reason for this way of computing names is to prevent name
|
|
collisions (for security). For instance, it shouldn't be feasible
|
|
to come up with a derivation whose output path collides with the
|
|
path for a copied source. The former would have a <s> starting with
|
|
"output:out:", while the latter would have a <s> starting with
|
|
"source:".
|
|
*/
|
|
|
|
|
|
StorePath Store::makeStorePath(const string & type,
|
|
const Hash & hash, std::string_view name) const
|
|
{
|
|
/* e.g., "source:sha256:1abc...:/nix/store:foo.tar.gz" */
|
|
string s = type + ":" + hash.to_string(Base16) + ":" + storeDir + ":" + std::string(name);
|
|
auto h = compressHash(hashString(htSHA256, s), 20);
|
|
return StorePath::make(h.hash, name);
|
|
}
|
|
|
|
|
|
StorePath Store::makeOutputPath(const string & id,
|
|
const Hash & hash, std::string_view name) const
|
|
{
|
|
return makeStorePath("output:" + id, hash,
|
|
std::string(name) + (id == "out" ? "" : "-" + id));
|
|
}
|
|
|
|
|
|
static std::string makeType(
|
|
const Store & store,
|
|
string && type,
|
|
const StorePathSet & references,
|
|
bool hasSelfReference = false)
|
|
{
|
|
for (auto & i : references) {
|
|
type += ":";
|
|
type += store.printStorePath(i);
|
|
}
|
|
if (hasSelfReference) type += ":self";
|
|
return std::move(type);
|
|
}
|
|
|
|
|
|
StorePath Store::makeFixedOutputPath(
|
|
FileIngestionMethod recursive,
|
|
const Hash & hash,
|
|
std::string_view name,
|
|
const StorePathSet & references,
|
|
bool hasSelfReference) const
|
|
{
|
|
if (hash.type == htSHA256 && recursive == FileIngestionMethod::Recursive) {
|
|
return makeStorePath(makeType(*this, "source", references, hasSelfReference), hash, name);
|
|
} else {
|
|
assert(references.empty());
|
|
return makeStorePath("output:out",
|
|
hashString(htSHA256,
|
|
"fixed:out:"
|
|
+ (recursive == FileIngestionMethod::Recursive ? (string) "r:" : "")
|
|
+ hash.to_string(Base16) + ":"),
|
|
name);
|
|
}
|
|
}
|
|
|
|
|
|
StorePath Store::makeTextPath(std::string_view name, const Hash & hash,
|
|
const StorePathSet & references) const
|
|
{
|
|
assert(hash.type == htSHA256);
|
|
/* Stuff the references (if any) into the type. This is a bit
|
|
hacky, but we can't put them in `s' since that would be
|
|
ambiguous. */
|
|
return makeStorePath(makeType(*this, "text", references), hash, name);
|
|
}
|
|
|
|
|
|
std::pair<StorePath, Hash> Store::computeStorePathForPath(std::string_view name,
|
|
const Path & srcPath, FileIngestionMethod method, HashType hashAlgo, PathFilter & filter) const
|
|
{
|
|
Hash h = method == FileIngestionMethod::Recursive
|
|
? hashPath(hashAlgo, srcPath, filter).first
|
|
: hashFile(hashAlgo, srcPath);
|
|
return std::make_pair(makeFixedOutputPath(method, h, name), h);
|
|
}
|
|
|
|
|
|
StorePath Store::computeStorePathForText(const string & name, const string & s,
|
|
const StorePathSet & references) const
|
|
{
|
|
return makeTextPath(name, hashString(htSHA256, s), references);
|
|
}
|
|
|
|
|
|
Store::Store(const Params & params)
|
|
: Config(params)
|
|
, state({(size_t) pathInfoCacheSize})
|
|
{
|
|
}
|
|
|
|
|
|
std::string Store::getUri()
|
|
{
|
|
return "";
|
|
}
|
|
|
|
bool Store::PathInfoCacheValue::isKnownNow()
|
|
{
|
|
std::chrono::duration ttl = didExist()
|
|
? std::chrono::seconds(settings.ttlPositiveNarInfoCache)
|
|
: std::chrono::seconds(settings.ttlNegativeNarInfoCache);
|
|
|
|
return std::chrono::steady_clock::now() < time_point + ttl;
|
|
}
|
|
|
|
bool Store::isValidPath(const StorePath & storePath)
|
|
{
|
|
auto hashPart = storePathToHash(printStorePath(storePath));
|
|
|
|
{
|
|
auto state_(state.lock());
|
|
auto res = state_->pathInfoCache.get(hashPart);
|
|
if (res && res->isKnownNow()) {
|
|
stats.narInfoReadAverted++;
|
|
return res->didExist();
|
|
}
|
|
}
|
|
|
|
if (diskCache) {
|
|
auto res = diskCache->lookupNarInfo(getUri(), hashPart);
|
|
if (res.first != NarInfoDiskCache::oUnknown) {
|
|
stats.narInfoReadAverted++;
|
|
auto state_(state.lock());
|
|
state_->pathInfoCache.upsert(hashPart,
|
|
res.first == NarInfoDiskCache::oInvalid ? PathInfoCacheValue{} : PathInfoCacheValue { .value = res.second });
|
|
return res.first == NarInfoDiskCache::oValid;
|
|
}
|
|
}
|
|
|
|
bool valid = isValidPathUncached(storePath);
|
|
|
|
if (diskCache && !valid)
|
|
// FIXME: handle valid = true case.
|
|
diskCache->upsertNarInfo(getUri(), hashPart, 0);
|
|
|
|
return valid;
|
|
}
|
|
|
|
|
|
/* Default implementation for stores that only implement
|
|
queryPathInfoUncached(). */
|
|
bool Store::isValidPathUncached(const StorePath & path)
|
|
{
|
|
try {
|
|
queryPathInfo(path);
|
|
return true;
|
|
} catch (InvalidPath &) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
ref<const ValidPathInfo> Store::queryPathInfo(const StorePath & storePath)
|
|
{
|
|
std::promise<ref<const ValidPathInfo>> promise;
|
|
|
|
queryPathInfo(storePath,
|
|
{[&](std::future<ref<const ValidPathInfo>> result) {
|
|
try {
|
|
promise.set_value(result.get());
|
|
} catch (...) {
|
|
promise.set_exception(std::current_exception());
|
|
}
|
|
}});
|
|
|
|
return promise.get_future().get();
|
|
}
|
|
|
|
|
|
void Store::queryPathInfo(const StorePath & storePath,
|
|
Callback<ref<const ValidPathInfo>> callback) noexcept
|
|
{
|
|
std::string hashPart;
|
|
|
|
try {
|
|
hashPart = storePathToHash(printStorePath(storePath));
|
|
|
|
{
|
|
auto res = state.lock()->pathInfoCache.get(hashPart);
|
|
if (res && res->isKnownNow()) {
|
|
stats.narInfoReadAverted++;
|
|
if (!res->didExist())
|
|
throw InvalidPath("path '%s' is not valid", printStorePath(storePath));
|
|
return callback(ref<const ValidPathInfo>(res->value));
|
|
}
|
|
}
|
|
|
|
if (diskCache) {
|
|
auto res = diskCache->lookupNarInfo(getUri(), hashPart);
|
|
if (res.first != NarInfoDiskCache::oUnknown) {
|
|
stats.narInfoReadAverted++;
|
|
{
|
|
auto state_(state.lock());
|
|
state_->pathInfoCache.upsert(hashPart,
|
|
res.first == NarInfoDiskCache::oInvalid ? PathInfoCacheValue{} : PathInfoCacheValue{ .value = res.second });
|
|
if (res.first == NarInfoDiskCache::oInvalid ||
|
|
res.second->path != storePath)
|
|
throw InvalidPath("path '%s' is not valid", printStorePath(storePath));
|
|
}
|
|
return callback(ref<const ValidPathInfo>(res.second));
|
|
}
|
|
}
|
|
|
|
} catch (...) { return callback.rethrow(); }
|
|
|
|
auto callbackPtr = std::make_shared<decltype(callback)>(std::move(callback));
|
|
|
|
queryPathInfoUncached(storePath,
|
|
{[this, storePath{printStorePath(storePath)}, hashPart, callbackPtr](std::future<std::shared_ptr<const ValidPathInfo>> fut) {
|
|
|
|
try {
|
|
auto info = fut.get();
|
|
|
|
if (diskCache)
|
|
diskCache->upsertNarInfo(getUri(), hashPart, info);
|
|
|
|
{
|
|
auto state_(state.lock());
|
|
state_->pathInfoCache.upsert(hashPart, PathInfoCacheValue { .value = info });
|
|
}
|
|
|
|
if (!info || info->path != parseStorePath(storePath)) {
|
|
stats.narInfoMissing++;
|
|
throw InvalidPath("path '%s' is not valid", storePath);
|
|
}
|
|
|
|
(*callbackPtr)(ref<const ValidPathInfo>(info));
|
|
} catch (...) { callbackPtr->rethrow(); }
|
|
}});
|
|
}
|
|
|
|
|
|
StorePathSet Store::queryValidPaths(const StorePathSet & paths, SubstituteFlag maybeSubstitute)
|
|
{
|
|
struct State
|
|
{
|
|
size_t left;
|
|
StorePathSet valid;
|
|
std::exception_ptr exc;
|
|
};
|
|
|
|
Sync<State> state_(State{paths.size(), StorePathSet()});
|
|
|
|
std::condition_variable wakeup;
|
|
ThreadPool pool;
|
|
|
|
auto doQuery = [&](const Path & path) {
|
|
checkInterrupt();
|
|
queryPathInfo(parseStorePath(path), {[path, this, &state_, &wakeup](std::future<ref<const ValidPathInfo>> fut) {
|
|
auto state(state_.lock());
|
|
try {
|
|
auto info = fut.get();
|
|
state->valid.insert(parseStorePath(path));
|
|
} catch (InvalidPath &) {
|
|
} catch (...) {
|
|
state->exc = std::current_exception();
|
|
}
|
|
assert(state->left);
|
|
if (!--state->left)
|
|
wakeup.notify_one();
|
|
}});
|
|
};
|
|
|
|
for (auto & path : paths)
|
|
pool.enqueue(std::bind(doQuery, printStorePath(path))); // FIXME
|
|
|
|
pool.process();
|
|
|
|
while (true) {
|
|
auto state(state_.lock());
|
|
if (!state->left) {
|
|
if (state->exc) std::rethrow_exception(state->exc);
|
|
return std::move(state->valid);
|
|
}
|
|
state.wait(wakeup);
|
|
}
|
|
}
|
|
|
|
|
|
/* Return a string accepted by decodeValidPathInfo() that
|
|
registers the specified paths as valid. Note: it's the
|
|
responsibility of the caller to provide a closure. */
|
|
string Store::makeValidityRegistration(const StorePathSet & paths,
|
|
bool showDerivers, bool showHash)
|
|
{
|
|
string s = "";
|
|
|
|
for (auto & i : paths) {
|
|
s += printStorePath(i) + "\n";
|
|
|
|
auto info = queryPathInfo(i);
|
|
|
|
if (showHash) {
|
|
s += info->narHash.to_string(Base16, false) + "\n";
|
|
s += (format("%1%\n") % info->narSize).str();
|
|
}
|
|
|
|
auto deriver = showDerivers && info->deriver ? printStorePath(*info->deriver) : "";
|
|
s += deriver + "\n";
|
|
|
|
s += (format("%1%\n") % info->references.size()).str();
|
|
|
|
for (auto & j : info->references)
|
|
s += printStorePath(j) + "\n";
|
|
}
|
|
|
|
return s;
|
|
}
|
|
|
|
|
|
void Store::pathInfoToJSON(JSONPlaceholder & jsonOut, const StorePathSet & storePaths,
|
|
bool includeImpureInfo, bool showClosureSize,
|
|
Base hashBase,
|
|
AllowInvalidFlag allowInvalid)
|
|
{
|
|
auto jsonList = jsonOut.list();
|
|
|
|
for (auto & storePath : storePaths) {
|
|
auto jsonPath = jsonList.object();
|
|
jsonPath.attr("path", printStorePath(storePath));
|
|
|
|
try {
|
|
auto info = queryPathInfo(storePath);
|
|
|
|
jsonPath
|
|
.attr("narHash", info->narHash.to_string(hashBase))
|
|
.attr("narSize", info->narSize);
|
|
|
|
{
|
|
auto jsonRefs = jsonPath.list("references");
|
|
for (auto & ref : info->references)
|
|
jsonRefs.elem(printStorePath(ref));
|
|
}
|
|
|
|
if (info->ca != "")
|
|
jsonPath.attr("ca", info->ca);
|
|
|
|
std::pair<uint64_t, uint64_t> closureSizes;
|
|
|
|
if (showClosureSize) {
|
|
closureSizes = getClosureSize(info->path);
|
|
jsonPath.attr("closureSize", closureSizes.first);
|
|
}
|
|
|
|
if (includeImpureInfo) {
|
|
|
|
if (info->deriver)
|
|
jsonPath.attr("deriver", printStorePath(*info->deriver));
|
|
|
|
if (info->registrationTime)
|
|
jsonPath.attr("registrationTime", info->registrationTime);
|
|
|
|
if (info->ultimate)
|
|
jsonPath.attr("ultimate", info->ultimate);
|
|
|
|
if (!info->sigs.empty()) {
|
|
auto jsonSigs = jsonPath.list("signatures");
|
|
for (auto & sig : info->sigs)
|
|
jsonSigs.elem(sig);
|
|
}
|
|
|
|
auto narInfo = std::dynamic_pointer_cast<const NarInfo>(
|
|
std::shared_ptr<const ValidPathInfo>(info));
|
|
|
|
if (narInfo) {
|
|
if (!narInfo->url.empty())
|
|
jsonPath.attr("url", narInfo->url);
|
|
if (narInfo->fileHash)
|
|
jsonPath.attr("downloadHash", narInfo->fileHash.to_string());
|
|
if (narInfo->fileSize)
|
|
jsonPath.attr("downloadSize", narInfo->fileSize);
|
|
if (showClosureSize)
|
|
jsonPath.attr("closureDownloadSize", closureSizes.second);
|
|
}
|
|
}
|
|
|
|
} catch (InvalidPath &) {
|
|
jsonPath.attr("valid", false);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
std::pair<uint64_t, uint64_t> Store::getClosureSize(const StorePath & storePath)
|
|
{
|
|
uint64_t totalNarSize = 0, totalDownloadSize = 0;
|
|
StorePathSet closure;
|
|
computeFSClosure(storePath, closure, false, false);
|
|
for (auto & p : closure) {
|
|
auto info = queryPathInfo(p);
|
|
totalNarSize += info->narSize;
|
|
auto narInfo = std::dynamic_pointer_cast<const NarInfo>(
|
|
std::shared_ptr<const ValidPathInfo>(info));
|
|
if (narInfo)
|
|
totalDownloadSize += narInfo->fileSize;
|
|
}
|
|
return {totalNarSize, totalDownloadSize};
|
|
}
|
|
|
|
|
|
const Store::Stats & Store::getStats()
|
|
{
|
|
{
|
|
auto state_(state.lock());
|
|
stats.pathInfoCacheSize = state_->pathInfoCache.size();
|
|
}
|
|
return stats;
|
|
}
|
|
|
|
|
|
void Store::buildPaths(const std::vector<StorePathWithOutputs> & paths, BuildMode buildMode)
|
|
{
|
|
StorePathSet paths2;
|
|
|
|
for (auto & path : paths) {
|
|
if (path.path.isDerivation())
|
|
unsupported("buildPaths");
|
|
paths2.insert(path.path.clone());
|
|
}
|
|
|
|
if (queryValidPaths(paths2).size() != paths2.size())
|
|
unsupported("buildPaths");
|
|
}
|
|
|
|
|
|
void copyStorePath(ref<Store> srcStore, ref<Store> dstStore,
|
|
const StorePath & storePath, RepairFlag repair, CheckSigsFlag checkSigs)
|
|
{
|
|
auto srcUri = srcStore->getUri();
|
|
auto dstUri = dstStore->getUri();
|
|
|
|
Activity act(*logger, lvlInfo, actCopyPath,
|
|
srcUri == "local" || srcUri == "daemon"
|
|
? fmt("copying path '%s' to '%s'", srcStore->printStorePath(storePath), dstUri)
|
|
: dstUri == "local" || dstUri == "daemon"
|
|
? fmt("copying path '%s' from '%s'", srcStore->printStorePath(storePath), srcUri)
|
|
: fmt("copying path '%s' from '%s' to '%s'", srcStore->printStorePath(storePath), srcUri, dstUri),
|
|
{srcStore->printStorePath(storePath), srcUri, dstUri});
|
|
PushActivity pact(act.id);
|
|
|
|
auto info = srcStore->queryPathInfo(storePath);
|
|
|
|
uint64_t total = 0;
|
|
|
|
if (!info->narHash) {
|
|
StringSink sink;
|
|
srcStore->narFromPath({storePath}, sink);
|
|
auto info2 = make_ref<ValidPathInfo>(*info);
|
|
info2->narHash = hashString(htSHA256, *sink.s);
|
|
if (!info->narSize) info2->narSize = sink.s->size();
|
|
if (info->ultimate) info2->ultimate = false;
|
|
info = info2;
|
|
|
|
StringSource source(*sink.s);
|
|
dstStore->addToStore(*info, source, repair, checkSigs);
|
|
return;
|
|
}
|
|
|
|
if (info->ultimate) {
|
|
auto info2 = make_ref<ValidPathInfo>(*info);
|
|
info2->ultimate = false;
|
|
info = info2;
|
|
}
|
|
|
|
auto source = sinkToSource([&](Sink & sink) {
|
|
LambdaSink wrapperSink([&](const unsigned char * data, size_t len) {
|
|
sink(data, len);
|
|
total += len;
|
|
act.progress(total, info->narSize);
|
|
});
|
|
srcStore->narFromPath(storePath, wrapperSink);
|
|
}, [&]() {
|
|
throw EndOfFile("NAR for '%s' fetched from '%s' is incomplete", srcStore->printStorePath(storePath), srcStore->getUri());
|
|
});
|
|
|
|
dstStore->addToStore(*info, *source, repair, checkSigs);
|
|
}
|
|
|
|
|
|
void copyPaths(ref<Store> srcStore, ref<Store> dstStore, const StorePathSet & storePaths,
|
|
RepairFlag repair, CheckSigsFlag checkSigs, SubstituteFlag substitute)
|
|
{
|
|
auto valid = dstStore->queryValidPaths(storePaths, substitute);
|
|
|
|
PathSet missing;
|
|
for (auto & path : storePaths)
|
|
if (!valid.count(path)) missing.insert(srcStore->printStorePath(path));
|
|
|
|
if (missing.empty()) return;
|
|
|
|
Activity act(*logger, lvlInfo, actCopyPaths, fmt("copying %d paths", missing.size()));
|
|
|
|
std::atomic<size_t> nrDone{0};
|
|
std::atomic<size_t> nrFailed{0};
|
|
std::atomic<uint64_t> bytesExpected{0};
|
|
std::atomic<uint64_t> nrRunning{0};
|
|
|
|
auto showProgress = [&]() {
|
|
act.progress(nrDone, missing.size(), nrRunning, nrFailed);
|
|
};
|
|
|
|
ThreadPool pool;
|
|
|
|
processGraph<Path>(pool,
|
|
PathSet(missing.begin(), missing.end()),
|
|
|
|
[&](const Path & storePath) {
|
|
if (dstStore->isValidPath(dstStore->parseStorePath(storePath))) {
|
|
nrDone++;
|
|
showProgress();
|
|
return PathSet();
|
|
}
|
|
|
|
auto info = srcStore->queryPathInfo(srcStore->parseStorePath(storePath));
|
|
|
|
bytesExpected += info->narSize;
|
|
act.setExpected(actCopyPath, bytesExpected);
|
|
|
|
return srcStore->printStorePathSet(info->references);
|
|
},
|
|
|
|
[&](const Path & storePathS) {
|
|
checkInterrupt();
|
|
|
|
auto storePath = dstStore->parseStorePath(storePathS);
|
|
|
|
if (!dstStore->isValidPath(storePath)) {
|
|
MaintainCount<decltype(nrRunning)> mc(nrRunning);
|
|
showProgress();
|
|
try {
|
|
copyStorePath(srcStore, dstStore, storePath, repair, checkSigs);
|
|
} catch (Error &e) {
|
|
nrFailed++;
|
|
if (!settings.keepGoing)
|
|
throw e;
|
|
logger->log(lvlError, fmt("could not copy %s: %s", storePathS, e.what()));
|
|
showProgress();
|
|
return;
|
|
}
|
|
}
|
|
|
|
nrDone++;
|
|
showProgress();
|
|
});
|
|
}
|
|
|
|
|
|
void copyClosure(ref<Store> srcStore, ref<Store> dstStore,
|
|
const StorePathSet & storePaths, RepairFlag repair, CheckSigsFlag checkSigs,
|
|
SubstituteFlag substitute)
|
|
{
|
|
StorePathSet closure;
|
|
srcStore->computeFSClosure(storePaths, closure);
|
|
copyPaths(srcStore, dstStore, closure, repair, checkSigs, substitute);
|
|
}
|
|
|
|
|
|
ValidPathInfo::ValidPathInfo(const ValidPathInfo & other)
|
|
: path(other.path.clone())
|
|
, deriver(other.deriver ? other.deriver->clone(): std::optional<StorePath>{})
|
|
, narHash(other.narHash)
|
|
, references(cloneStorePathSet(other.references))
|
|
, registrationTime(other.registrationTime)
|
|
, narSize(other.narSize)
|
|
, id(other.id)
|
|
, ultimate(other.ultimate)
|
|
, sigs(other.sigs)
|
|
, ca(other.ca)
|
|
{
|
|
}
|
|
|
|
|
|
std::optional<ValidPathInfo> decodeValidPathInfo(const Store & store, std::istream & str, bool hashGiven)
|
|
{
|
|
std::string path;
|
|
getline(str, path);
|
|
if (str.eof()) { return {}; }
|
|
ValidPathInfo info(store.parseStorePath(path));
|
|
if (hashGiven) {
|
|
string s;
|
|
getline(str, s);
|
|
info.narHash = Hash(s, htSHA256);
|
|
getline(str, s);
|
|
if (!string2Int(s, info.narSize)) throw Error("number expected");
|
|
}
|
|
std::string deriver;
|
|
getline(str, deriver);
|
|
if (deriver != "") info.deriver = store.parseStorePath(deriver);
|
|
string s; int n;
|
|
getline(str, s);
|
|
if (!string2Int(s, n)) throw Error("number expected");
|
|
while (n--) {
|
|
getline(str, s);
|
|
info.references.insert(store.parseStorePath(s));
|
|
}
|
|
if (!str || str.eof()) throw Error("missing input");
|
|
return std::optional<ValidPathInfo>(std::move(info));
|
|
}
|
|
|
|
|
|
std::string Store::showPaths(const StorePathSet & paths)
|
|
{
|
|
std::string s;
|
|
for (auto & i : paths) {
|
|
if (s.size() != 0) s += ", ";
|
|
s += "'" + printStorePath(i) + "'";
|
|
}
|
|
return s;
|
|
}
|
|
|
|
|
|
string showPaths(const PathSet & paths)
|
|
{
|
|
return concatStringsSep(", ", quoteStrings(paths));
|
|
}
|
|
|
|
|
|
std::string ValidPathInfo::fingerprint(const Store & store) const
|
|
{
|
|
if (narSize == 0 || !narHash)
|
|
throw Error("cannot calculate fingerprint of path '%s' because its size/hash is not known",
|
|
store.printStorePath(path));
|
|
return
|
|
"1;" + store.printStorePath(path) + ";"
|
|
+ narHash.to_string(Base32) + ";"
|
|
+ std::to_string(narSize) + ";"
|
|
+ concatStringsSep(",", store.printStorePathSet(references));
|
|
}
|
|
|
|
|
|
void ValidPathInfo::sign(const Store & store, const SecretKey & secretKey)
|
|
{
|
|
sigs.insert(secretKey.signDetached(fingerprint(store)));
|
|
}
|
|
|
|
|
|
bool ValidPathInfo::isContentAddressed(const Store & store) const
|
|
{
|
|
auto warn = [&]() {
|
|
printError("warning: path '%s' claims to be content-addressed but isn't", store.printStorePath(path));
|
|
};
|
|
|
|
if (hasPrefix(ca, "text:")) {
|
|
Hash hash(std::string(ca, 5));
|
|
if (store.makeTextPath(path.name(), hash, references) == path)
|
|
return true;
|
|
else
|
|
warn();
|
|
}
|
|
|
|
else if (hasPrefix(ca, "fixed:")) {
|
|
FileIngestionMethod recursive { ca.compare(6, 2, "r:") == 0 };
|
|
Hash hash(std::string(ca, recursive == FileIngestionMethod::Recursive ? 8 : 6));
|
|
auto refs = cloneStorePathSet(references);
|
|
bool hasSelfReference = false;
|
|
if (refs.count(path)) {
|
|
hasSelfReference = true;
|
|
refs.erase(path);
|
|
}
|
|
if (store.makeFixedOutputPath(recursive, hash, path.name(), refs, hasSelfReference) == path)
|
|
return true;
|
|
else
|
|
warn();
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
size_t ValidPathInfo::checkSignatures(const Store & store, const PublicKeys & publicKeys) const
|
|
{
|
|
if (isContentAddressed(store)) return maxSigs;
|
|
|
|
size_t good = 0;
|
|
for (auto & sig : sigs)
|
|
if (checkSignature(store, publicKeys, sig))
|
|
good++;
|
|
return good;
|
|
}
|
|
|
|
|
|
bool ValidPathInfo::checkSignature(const Store & store, const PublicKeys & publicKeys, const std::string & sig) const
|
|
{
|
|
return verifyDetached(fingerprint(store), sig, publicKeys);
|
|
}
|
|
|
|
|
|
Strings ValidPathInfo::shortRefs() const
|
|
{
|
|
Strings refs;
|
|
for (auto & r : references)
|
|
refs.push_back(std::string(r.to_string()));
|
|
return refs;
|
|
}
|
|
|
|
|
|
std::string makeFixedOutputCA(FileIngestionMethod recursive, const Hash & hash)
|
|
{
|
|
return "fixed:"
|
|
+ (recursive == FileIngestionMethod::Recursive ? (std::string) "r:" : "")
|
|
+ hash.to_string();
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
#include "local-store.hh"
|
|
#include "remote-store.hh"
|
|
|
|
|
|
namespace nix {
|
|
|
|
|
|
RegisterStoreImplementation::Implementations * RegisterStoreImplementation::implementations = 0;
|
|
|
|
/* Split URI into protocol+hierarchy part and its parameter set. */
|
|
std::pair<std::string, Store::Params> splitUriAndParams(const std::string & uri_)
|
|
{
|
|
auto uri(uri_);
|
|
Store::Params params;
|
|
auto q = uri.find('?');
|
|
if (q != std::string::npos) {
|
|
params = decodeQuery(uri.substr(q + 1));
|
|
uri = uri_.substr(0, q);
|
|
}
|
|
return {uri, params};
|
|
}
|
|
|
|
ref<Store> openStore(const std::string & uri_,
|
|
const Store::Params & extraParams)
|
|
{
|
|
auto [uri, uriParams] = splitUriAndParams(uri_);
|
|
auto params = extraParams;
|
|
params.insert(uriParams.begin(), uriParams.end());
|
|
|
|
for (auto fun : *RegisterStoreImplementation::implementations) {
|
|
auto store = fun(uri, params);
|
|
if (store) {
|
|
store->warnUnknownSettings();
|
|
return ref<Store>(store);
|
|
}
|
|
}
|
|
|
|
throw Error("don't know how to open Nix store '%s'", uri);
|
|
}
|
|
|
|
|
|
StoreType getStoreType(const std::string & uri, const std::string & stateDir)
|
|
{
|
|
if (uri == "daemon") {
|
|
return tDaemon;
|
|
} else if (uri == "local" || hasPrefix(uri, "/")) {
|
|
return tLocal;
|
|
} else if (uri == "" || uri == "auto") {
|
|
if (access(stateDir.c_str(), R_OK | W_OK) == 0)
|
|
return tLocal;
|
|
else if (pathExists(settings.nixDaemonSocketFile))
|
|
return tDaemon;
|
|
else
|
|
return tLocal;
|
|
} else {
|
|
return tOther;
|
|
}
|
|
}
|
|
|
|
|
|
static RegisterStoreImplementation regStore([](
|
|
const std::string & uri, const Store::Params & params)
|
|
-> std::shared_ptr<Store>
|
|
{
|
|
switch (getStoreType(uri, get(params, "state").value_or(settings.nixStateDir))) {
|
|
case tDaemon:
|
|
return std::shared_ptr<Store>(std::make_shared<UDSRemoteStore>(params));
|
|
case tLocal: {
|
|
Store::Params params2 = params;
|
|
if (hasPrefix(uri, "/"))
|
|
params2["root"] = uri;
|
|
return std::shared_ptr<Store>(std::make_shared<LocalStore>(params2));
|
|
}
|
|
default:
|
|
return nullptr;
|
|
}
|
|
});
|
|
|
|
|
|
std::list<ref<Store>> getDefaultSubstituters()
|
|
{
|
|
static auto stores([]() {
|
|
std::list<ref<Store>> stores;
|
|
|
|
StringSet done;
|
|
|
|
auto addStore = [&](const std::string & uri) {
|
|
if (!done.insert(uri).second) return;
|
|
try {
|
|
stores.push_back(openStore(uri));
|
|
} catch (Error & e) {
|
|
printError("warning: %s", e.what());
|
|
}
|
|
};
|
|
|
|
for (auto uri : settings.substituters.get())
|
|
addStore(uri);
|
|
|
|
for (auto uri : settings.extraSubstituters.get())
|
|
addStore(uri);
|
|
|
|
stores.sort([](ref<Store> & a, ref<Store> & b) {
|
|
return a->priority < b->priority;
|
|
});
|
|
|
|
return stores;
|
|
} ());
|
|
|
|
return stores;
|
|
}
|
|
|
|
|
|
}
|