mirror of
https://github.com/privatevoid-net/nix-super.git
synced 2024-09-21 17:08:04 +03:00
d74236d1f2
That is, unless --file is specified, the Nix search path is synthesized into an attribute set. Thus you can say $ nix build nixpkgs.hello assuming $NIX_PATH contains an entry of the form "nixpkgs=...". This is more verbose than $ nix build hello but is less ambiguous.
108 lines
2.8 KiB
C++
108 lines
2.8 KiB
C++
#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 {
|
||
|
||
Value * MixInstallables::buildSourceExpr(EvalState & state)
|
||
{
|
||
Value * vRoot = state.allocValue();
|
||
|
||
if (file != "") {
|
||
Expr * e = state.parseExprFromFile(resolveExprPath(lookupFileArg(state, file)));
|
||
state.eval(e, *vRoot);
|
||
}
|
||
|
||
else {
|
||
|
||
/* Construct the installation source from $NIX_PATH. */
|
||
|
||
auto searchPath = state.getSearchPath();
|
||
|
||
state.mkAttrs(*vRoot, searchPath.size());
|
||
|
||
std::unordered_set<std::string> seen;
|
||
|
||
for (auto & i : searchPath) {
|
||
if (i.first == "") continue;
|
||
if (seen.count(i.first)) continue;
|
||
seen.insert(i.first);
|
||
if (!pathExists(i.second)) continue;
|
||
mkApp(*state.allocAttr(*vRoot, state.symbols.create(i.first)),
|
||
state.getBuiltin("import"),
|
||
mkString(*state.allocValue(), i.second));
|
||
}
|
||
|
||
vRoot->attrs->sort();
|
||
}
|
||
|
||
return vRoot;
|
||
}
|
||
|
||
UserEnvElems MixInstallables::evalInstallables(ref<Store> store)
|
||
{
|
||
UserEnvElems res;
|
||
|
||
for (auto & installable : installables) {
|
||
|
||
if (std::string(installable, 0, 1) == "/") {
|
||
|
||
if (store->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);
|
||
|
||
auto vRoot = buildSourceExpr(state);
|
||
|
||
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;
|
||
}
|
||
|
||
}
|