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#include "common-eval-args.hh"
#include "shared.hh"
#include "filetransfer.hh"
#include "util.hh"
#include "eval.hh"
#include "fetchers.hh"
#include "registry.hh"
#include "flake/flakeref.hh"
#include "store-api.hh"
namespace nix {
MixEvalArgs::MixEvalArgs()
{
addFlag({
.longName = "arg",
.description = "argument to be passed to Nix functions",
.labels = {"name", "expr"},
.handler = {[&](std::string name, std::string expr) { autoArgs[name] = 'E' + expr; }}
});
addFlag({
.longName = "argstr",
.description = "string-valued argument to be passed to Nix functions",
.labels = {"name", "string"},
.handler = {[&](std::string name, std::string s) { autoArgs[name] = 'S' + s; }},
});
addFlag({
.longName = "include",
.shortName = 'I',
.description = "add a path to the list of locations used to look up `<...>` file names",
.labels = {"path"},
.handler = {[&](std::string s) { searchPath.push_back(s); }}
});
addFlag({
.longName = "impure",
.description = "allow access to mutable paths and repositories",
.handler = {[&]() {
evalSettings.pureEval = false;
}},
});
addFlag({
.longName = "override-flake",
.description = "override a flake registry value",
.labels = {"original-ref", "resolved-ref"},
.handler = {[&](std::string _from, std::string _to) {
auto from = parseFlakeRef(_from, absPath("."));
auto to = parseFlakeRef(_to, absPath("."));
fetchers::Attrs extraAttrs;
if (to.subdir != "") extraAttrs["dir"] = to.subdir;
fetchers::overrideRegistry(from.input, to.input, extraAttrs);
}}
});
}
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 state.store->toRealPath(
fetchers::downloadTarball(
state.store, resolveUri(s), Headers {}, "source", false).first.storePath);
} 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);
}
}
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