* Start of a helper tool to evaluate job expressions efficiently.

Dependencies

• [2] CLXEECMF * Start putting build results in a database.

Change contents

• file addition: c (d--r------)
  [2.4]
• file addition: Makefile (----------)
  [0.1]
  + NIX = /home/eelco/Dev/nix/inst

  + ATERM = /home/eelco/Dev/nix/externals/inst-aterm

  +

  + eval-jobs: eval-jobs.cc

  + libtool --mode=link g++ -o eval-jobs eval-jobs.cc -I$(NIX)/include/nix -I$(ATERM)/include -L$(NIX)/lib/nix/ -lmain -lexpr -L$(ATERM)/lib -lATerm
• file addition: eval-jobs.cc (----------)
  [0.1]
  + #include <map>

  + #include <iostream>

  +

  + #include "shared.hh"

  + #include "store-api.hh"

  + #include "eval.hh"

  + #include "parser.hh"

  + #include "expr-to-xml.hh"

  +

  + using namespace nix;

  +

  +

  + void printHelp()

  + {

  + std::cout << "Syntax: eval-jobs <expr>\n";

  + }

  +

  +

  + void run(Strings args)

  + {

  + EvalState state;

  + Path releaseExpr;

  +

  + for (Strings::iterator i = args.begin(); i != args.end(); ) {

  + string arg = *i++;

  + if (arg[0] == '-')

  + throw UsageError(format("unknown flag `%1%'") % arg);

  + else

  + releaseExpr = arg;

  + }

  +

  + store = openStore();

  +

  + Expr e = evalExpr(state, parseExprFromFile(state, releaseExpr));

  +

  + PathSet context;

  + printTermAsXML(e, std::cout, context);

  + }

  +

  +

  + string programId = "eval-jobs";