forked from lix-project/lix
58 lines
1.7 KiB
C++
58 lines
1.7 KiB
C++
#include "common-eval-args.hh"
|
|
#include "shared.hh"
|
|
#include "download.hh"
|
|
#include "util.hh"
|
|
#include "eval.hh"
|
|
|
|
namespace nix {
|
|
|
|
MixEvalArgs::MixEvalArgs()
|
|
{
|
|
mkFlag()
|
|
.longName("arg")
|
|
.description("argument to be passed to Nix functions")
|
|
.labels({"name", "expr"})
|
|
.handler([&](std::vector<std::string> ss) { autoArgs[ss[0]] = 'E' + ss[1]; });
|
|
|
|
mkFlag()
|
|
.longName("argstr")
|
|
.description("string-valued argument to be passed to Nix functions")
|
|
.labels({"name", "string"})
|
|
.handler([&](std::vector<std::string> ss) { autoArgs[ss[0]] = 'S' + ss[1]; });
|
|
|
|
mkFlag()
|
|
.shortName('I')
|
|
.longName("include")
|
|
.description("add a path to the list of locations used to look up <...> file names")
|
|
.label("path")
|
|
.handler([&](std::string s) { searchPath.push_back(s); });
|
|
}
|
|
|
|
Bindings * MixEvalArgs::getAutoArgs(EvalState & state)
|
|
{
|
|
Bindings * res = state.allocBindings(autoArgs.size());
|
|
for (auto & i : autoArgs) {
|
|
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;
|
|
}
|
|
|
|
Path lookupFileArg(EvalState & state, string s)
|
|
{
|
|
if (isUri(s))
|
|
return getDownloader()->downloadCached(state.store, 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);
|
|
}
|
|
|
|
}
|