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Get rid of std::shared_ptr<std::string> and ref<std::string>

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These were needed back in the pre-C++11 era because we didn't have
move semantics. But now we do.
This commit is contained in:
Eelco Dolstra 2022-01-17 22:20:05 +01:00
parent 52ee7ec002
commit d62a9390fc
33 changed files with 138 additions and 134 deletions
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30
src/libstore/remote-fs-accessor.cc
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@ -22,9 +22,18 @@ Path RemoteFSAccessor::makeCacheFile(std::string_view hashPart, const std::strin
return fmt("%s/%s.%s", cacheDir, hashPart, ext);
}
void RemoteFSAccessor::addToCache(std::string_view hashPart, const std::string & nar,
ref<FSAccessor> narAccessor)
ref<FSAccessor> RemoteFSAccessor::addToCache(std::string_view hashPart, std::string && nar)
{
if (cacheDir != "") {
try {
/* FIXME: do this asynchronously. */
writeFile(makeCacheFile(hashPart, "nar"), nar);
} catch (...) {
ignoreException();
}
}
auto narAccessor = makeNarAccessor(std::move(nar));
nars.emplace(hashPart, narAccessor);
if (cacheDir != "") {
@ -33,14 +42,12 @@ void RemoteFSAccessor::addToCache(std::string_view hashPart, const std::string &
JSONPlaceholder jsonRoot(str);
listNar(jsonRoot, narAccessor, "", true);
writeFile(makeCacheFile(hashPart, "ls"), str.str());
/* FIXME: do this asynchronously. */
writeFile(makeCacheFile(hashPart, "nar"), nar);
} catch (...) {
ignoreException();
}
}
return narAccessor;
}
std::pair<ref<FSAccessor>, Path> RemoteFSAccessor::fetch(const Path & path_, bool requireValidPath)
@ -55,7 +62,6 @@ std::pair<ref<FSAccessor>, Path> RemoteFSAccessor::fetch(const Path & path_, boo
auto i = nars.find(std::string(storePath.hashPart()));
if (i != nars.end()) return {i->second, restPath};
StringSink sink;
std::string listing;
Path cacheFile;
@ -86,19 +92,15 @@ std::pair<ref<FSAccessor>, Path> RemoteFSAccessor::fetch(const Path & path_, boo
} catch (SysError &) { }
try {
*sink.s = nix::readFile(cacheFile);
auto narAccessor = makeNarAccessor(sink.s);
auto narAccessor = makeNarAccessor(nix::readFile(cacheFile));
nars.emplace(storePath.hashPart(), narAccessor);
return {narAccessor, restPath};
} catch (SysError &) { }
}
StringSink sink;
store->narFromPath(storePath, sink);
auto narAccessor = makeNarAccessor(sink.s);
addToCache(storePath.hashPart(), *sink.s, narAccessor);
return {narAccessor, restPath};
return {addToCache(storePath.hashPart(), std::move(sink.s)), restPath};
}
FSAccessor::Stat RemoteFSAccessor::stat(const Path & path)