forked from lix-project/lix
108 lines
2.8 KiB
C++
108 lines
2.8 KiB
C++
#include "attr-path.hh"
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#include "common-opts.hh"
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#include "derivations.hh"
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#include "eval-inline.hh"
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#include "eval.hh"
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#include "get-drvs.hh"
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#include "installables.hh"
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#include "store-api.hh"
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namespace nix {
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Value * MixInstallables::buildSourceExpr(EvalState & state)
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{
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Value * vRoot = state.allocValue();
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if (file != "") {
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Expr * e = state.parseExprFromFile(resolveExprPath(lookupFileArg(state, file)));
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state.eval(e, *vRoot);
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}
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else {
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/* Construct the installation source from $NIX_PATH. */
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auto searchPath = state.getSearchPath();
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state.mkAttrs(*vRoot, searchPath.size());
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std::unordered_set<std::string> seen;
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for (auto & i : searchPath) {
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if (i.first == "") continue;
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if (seen.count(i.first)) continue;
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seen.insert(i.first);
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if (!pathExists(i.second)) continue;
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mkApp(*state.allocAttr(*vRoot, state.symbols.create(i.first)),
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state.getBuiltin("import"),
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mkString(*state.allocValue(), i.second));
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}
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vRoot->attrs->sort();
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}
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return vRoot;
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}
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UserEnvElems MixInstallables::evalInstallables(ref<Store> store)
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{
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UserEnvElems res;
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for (auto & installable : installables) {
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if (std::string(installable, 0, 1) == "/") {
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if (store->isStorePath(installable)) {
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if (isDerivation(installable)) {
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UserEnvElem elem;
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// FIXME: handle empty case, drop version
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elem.attrPath = {storePathToName(installable)};
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elem.isDrv = true;
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elem.drvPath = installable;
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res.push_back(elem);
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}
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else {
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UserEnvElem elem;
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// FIXME: handle empty case, drop version
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elem.attrPath = {storePathToName(installable)};
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elem.isDrv = false;
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elem.outPaths = {installable};
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res.push_back(elem);
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}
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}
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else
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throw UsageError(format("don't know what to do with ‘%1%’") % installable);
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}
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else {
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EvalState state({}, store);
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auto vRoot = buildSourceExpr(state);
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std::map<string, string> autoArgs_;
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Bindings & autoArgs(*evalAutoArgs(state, autoArgs_));
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Value & v(*findAlongAttrPath(state, installable, autoArgs, *vRoot));
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state.forceValue(v);
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DrvInfos drvs;
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getDerivations(state, v, "", autoArgs, drvs, false);
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for (auto & i : drvs) {
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UserEnvElem elem;
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elem.isDrv = true;
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elem.drvPath = i.queryDrvPath();
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res.push_back(elem);
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}
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}
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}
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return res;
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}
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}
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