lix/src/nix/installables.cc
Eelco Dolstra 206bbb5dc9 Add basic "nix build" command
Currently only builds by attribute from <nixpkgs> or the specified
file, e.g. "nix build hello".
2016-02-09 21:34:24 +01:00

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#include "attr-path.hh"
#include "common-opts.hh"
#include "derivations.hh"
#include "eval-inline.hh"
#include "eval.hh"
#include "get-drvs.hh"
#include "installables.hh"
#include "store-api.hh"
namespace nix {
UserEnvElems MixInstallables::evalInstallables(ref<Store> store)
{
UserEnvElems res;
for (auto & installable : installables) {
if (std::string(installable, 0, 1) == "/") {
if (isStorePath(installable)) {
if (isDerivation(installable)) {
UserEnvElem elem;
// FIXME: handle empty case, drop version
elem.attrPath = {storePathToName(installable)};
elem.isDrv = true;
elem.drvPath = installable;
res.push_back(elem);
}
else {
UserEnvElem elem;
// FIXME: handle empty case, drop version
elem.attrPath = {storePathToName(installable)};
elem.isDrv = false;
elem.outPaths = {installable};
res.push_back(elem);
}
}
else
throw UsageError(format("don't know what to do with %1%") % installable);
}
else {
EvalState state({}, store);
Expr * e = state.parseExprFromFile(resolveExprPath(lookupFileArg(state, file)));
Value vRoot;
state.eval(e, vRoot);
std::map<string, string> autoArgs_;
Bindings & autoArgs(*evalAutoArgs(state, autoArgs_));
Value & v(*findAlongAttrPath(state, installable, autoArgs, vRoot));
state.forceValue(v);
DrvInfos drvs;
getDerivations(state, v, "", autoArgs, drvs, false);
for (auto & i : drvs) {
UserEnvElem elem;
elem.isDrv = true;
elem.drvPath = i.queryDrvPath();
res.push_back(elem);
}
}
}
return res;
}
}