#include "common-opts.hh" #include "shared.hh" #include "download.hh" #include "util.hh" namespace nix { bool parseAutoArgs(Strings::iterator & i, const Strings::iterator & argsEnd, std::map<string, string> & res) { string arg = *i; if (arg != "--arg" && arg != "--argstr") return false; UsageError error(format("ā%1%ā requires two arguments") % arg); if (++i == argsEnd) throw error; string name = *i; if (++i == argsEnd) throw error; string value = *i; res[name] = (arg == "--arg" ? 'E' : 'S') + value; return true; } Bindings * evalAutoArgs(EvalState & state, std::map<string, string> & in) { Bindings * res = state.allocBindings(in.size()); for (auto & i : in) { Value * v = state.allocValue(); if (i.second[0] == 'E') state.mkThunk_(*v, state.parseExprFromString(string(i.second, 1), absPath("."))); else mkString(*v, string(i.second, 1)); res->push_back(Attr(state.symbols.create(i.first), v)); } res->sort(); return res; } bool parseSearchPathArg(Strings::iterator & i, const Strings::iterator & argsEnd, Strings & searchPath) { if (*i != "-I") return false; if (++i == argsEnd) throw UsageError("ā-Iā requires an argument"); searchPath.push_back(*i); return true; } Path lookupFileArg(EvalState & state, string s) { if (isUri(s)) return downloadFileCached(s, true); else if (s.size() > 2 && s.at(0) == '<' && s.at(s.size() - 1) == '>') { Path p = s.substr(1, s.size() - 2); return state.findFile(p); } else return absPath(s); } }