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Merge remote-tracking branch 'origin/master' into flakes

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This commit is contained in:
Eelco Dolstra 2019-12-04 00:31:09 +01:00
commit c3c23a52ee
76 changed files with 1387 additions and 631 deletions
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29
src/libstore/builtins/unpack-channel.cc Normal file
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#include "builtins.hh"
#include "tarfile.hh"
namespace nix {
void builtinUnpackChannel(const BasicDerivation & drv)
{
auto getAttr = [&](const string & name) {
auto i = drv.env.find(name);
if (i == drv.env.end()) throw Error("attribute '%s' missing", name);
return i->second;
};
Path out = getAttr("out");
auto channelName = getAttr("channelName");
auto src = getAttr("src");
createDirs(out);
unpackTarfile(src, out);
auto entries = readDirectory(out);
if (entries.size() != 1)
throw Error("channel tarball '%s' contains more than one file", src);
if (rename((out + "/" + entries[0].name).c_str(), (out + "/" + channelName).c_str()) == -1)
throw SysError("renaming channel directory");
}
}