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Restore ambiguous value printer for nix-instantiate

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The Nix team has requested that this output format remain unchanged.
I've added a warning to the man page explaining that `nix-instantiate
--eval` output will not parse correctly in many situations.
This commit is contained in:
Rebecca Turner 2024-01-09 11:13:45 -08:00
parent 0fa08b4516
commit df84dd4d8d
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6 changed files with 189 additions and 26 deletions
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6
src/nix-instantiate/nix-instantiate.cc
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@ -1,9 +1,11 @@
#include "globals.hh"
#include "print-ambiguous.hh"
#include "shared.hh"
#include "eval.hh"
#include "eval-inline.hh"
#include "get-drvs.hh"
#include "attr-path.hh"
#include "signals.hh"
#include "value-to-xml.hh"
#include "value-to-json.hh"
#include "store-api.hh"
@ -24,7 +26,6 @@ static int rootNr = 0;
enum OutputKind { okPlain, okXML, okJSON };
void processExpr(EvalState & state, const Strings & attrPaths,
bool parseOnly, bool strict, Bindings & autoArgs,
bool evalOnly, OutputKind output, bool location, Expr * e)
@ -56,7 +57,8 @@ void processExpr(EvalState & state, const Strings & attrPaths,
std::cout << std::endl;
} else {
if (strict) state.forceValueDeep(vRes);
vRes.print(state, std::cout);
std::set<const void *> seen;
printAmbiguous(vRes, state.symbols, std::cout, &seen, std::numeric_limits<int>::max());
std::cout << std::endl;
}
} else {