nix-super/src/libstore/builtins/unpack-channel.cc
John Ericson e0b159549b Misc Windows fixes
1. Fix build by making the legacy SSH Storey's secret `logFD` setting
   not a setting on Windows. (It doesn't make sense to specify `void *`
   handles by integer cross-proccess, I don't think.)

2. Move some files that don't need to be Unix-only anymore back to their
   original locations.
2024-06-01 19:19:35 -04:00

33 lines
919 B
C++

#include "builtins.hh"
#include "tarfile.hh"
namespace nix {
void builtinUnpackChannel(
const BasicDerivation & drv,
const std::map<std::string, Path> & outputs)
{
auto getAttr = [&](const std::string & name) {
auto i = drv.env.find(name);
if (i == drv.env.end()) throw Error("attribute '%s' missing", name);
return i->second;
};
auto out = outputs.at("out");
auto channelName = getAttr("channelName");
auto src = getAttr("src");
createDirs(out);
unpackTarfile(src, out);
auto entries = std::filesystem::directory_iterator{out};
auto fileName = entries->path().string();
auto fileCount = std::distance(std::filesystem::begin(entries), std::filesystem::end(entries));
if (fileCount != 1)
throw Error("channel tarball '%s' contains more than one file", src);
std::filesystem::rename(fileName, (out + "/" + channelName));
}
}