Sync with nixUnstable

Dependencies

• [2] 53IMJNBB Add isChannel column and meta attribute.
• [3] 4GTOWRFW hydra-eval-jobs: Fix build
• [4] 4LWGZL33
• [5] L4LBF7UF Handle derivations without a system attribute
• [6] POPU2ATH * hydra_scheduler: use eval-jobs.
• [7] 4CELXP7P Remove the longDescription field
• [8] A63IHCMX * Register GC roots properly.
• [9] ZTQEU5QS Hydra: Add support for maxSilent meta attribute (also already added timeout, but not implemented the actual timeout for the build yet)
• [10] WUMCRXFX Don't ignore assertion failures in getDerivation()
• [11] 3PNG7NIB Remove trailing whitespace
• [12] I2HYJBML Debug tweak
• [13] 5X6FHW3S hydra-eval-jobs: Fix building against the latest unstable Nix
• [14] YGRLM2SK * Export all relevant info about the derivation.
• [15] IMQRX4MP hydra-eval-jobs: Use JSON instead of XML
• [16] AEKIREIH * Updated hydra_eval_jobs for the new evaluator.
• [17] PMNWRTGJ Add multiple output support
• [*] 4N5APGRG * Start of a helper tool to evaluate job expressions efficiently.

Change contents

• replacement in src/hydra-eval-jobs/hydra-eval-jobs.cc at line 109
  [4.512]→[4.653:681](∅→∅)
  − DrvInfo drv(state);
  [4.512]

  [4.802]
  + auto drv = getDerivation(state, v, false);
• replacement in src/hydra-eval-jobs/hydra-eval-jobs.cc at line 111
  [4.803]→[4.27:78](∅→∅),[4.54]→[4.27:78](∅→∅)
  − if (getDerivation(state, v, drv, false)) {
  [4.803]

  [4.29]
  + if (drv) {
• replacement in src/hydra-eval-jobs/hydra-eval-jobs.cc at line 114
  [4.1]→[4.682:741](∅→∅)
  − DrvInfo::Outputs outputs = drv.queryOutputs();
  [4.1]

  [4.747]
  + DrvInfo::Outputs outputs = drv->queryOutputs();
• replacement in src/hydra-eval-jobs/hydra-eval-jobs.cc at line 116
  [4.748]→[4.0:41](∅→∅)
  − if (drv.system == "unknown")
  [4.748]

  [4.41]
  + if (drv->querySystem() == "unknown")
• replacement in src/hydra-eval-jobs/hydra-eval-jobs.cc at line 121
  [3.65]→[4.504:727](∅→∅),[4.504]→[4.504:727](∅→∅),[4.808]→[4.808:1261](∅→∅),[4.1261]→[2.0:79](∅→∅)
  − res.attr("nixName", drv.name);

  − res.attr("system", drv.system);

  − res.attr("drvPath", drvPath = drv.queryDrvPath());

  − res.attr("description", drv.queryMetaString("description"));

  − res.attr("license", queryMetaStrings(state, drv, "license"));

  − res.attr("homepage", drv.queryMetaString("homepage"));

  − res.attr("maintainers", queryMetaStrings(state, drv, "maintainers"));

  − res.attr("schedulingPriority", drv.queryMetaInt("schedulingPriority", 100));

  − res.attr("timeout", drv.queryMetaInt("timeout", 36000));

  − res.attr("maxSilent", drv.queryMetaInt("maxSilent", 7200));

  − res.attr("isChannel", drv.queryMetaBool("isHydraChannel", false));
  [3.65]

  [4.259]
  + res.attr("nixName", drv->queryName());

  + res.attr("system", drv->querySystem());

  + res.attr("drvPath", drvPath = drv->queryDrvPath());

  + res.attr("description", drv->queryMetaString("description"));

  + res.attr("license", queryMetaStrings(state, *drv, "license"));

  + res.attr("homepage", drv->queryMetaString("homepage"));

  + res.attr("maintainers", queryMetaStrings(state, *drv, "maintainers"));

  + res.attr("schedulingPriority", drv->queryMetaInt("schedulingPriority", 100));

  + res.attr("timeout", drv->queryMetaInt("timeout", 36000));

  + res.attr("maxSilent", drv->queryMetaInt("maxSilent", 7200));

  + res.attr("isChannel", drv->queryMetaBool("isHydraChannel", false));