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getDerivations(): Filter out packages with bad derivation names

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In particular, this disallows attribute names containing dots or
starting with dots. Hydra already disallowed these. This affects the
following packages in Nixpkgs master:

  2048-in-terminal
  2bwm
  389-ds-base
  90secondportraits
  lispPackages.3bmd
  lispPackages.hu.dwim.asdf
  lispPackages.hu.dwim.def

Closes #1342.
This commit is contained in:
Eelco Dolstra 2017-04-19 14:18:26 +02:00
parent 62a07992bd
commit b0cb117226
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GPG key ID: 8170B4726D7198DE
1 changed files with 6 additions and 0 deletions
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6
src/libexpr/get-drvs.cc
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@ -3,6 +3,7 @@
#include "eval-inline.hh"
#include <cstring>
#include <regex>
namespace nix {
@ -262,6 +263,9 @@ static string addToPath(const string & s1, const string & s2)
}
static std::regex attrRegex("[A-Za-z_][A-Za-z0-9-_+]*");
static void getDerivations(EvalState & state, Value & vIn,
const string & pathPrefix, Bindings & autoArgs,
DrvInfos & drvs, Done & done,
@ -286,6 +290,8 @@ static void getDerivations(EvalState & state, Value & vIn,
precedence). */
for (auto & i : v.attrs->lexicographicOrder()) {
Activity act(*logger, lvlDebug, format("evaluating attribute ‘%1%’") % i->name);
if (!std::regex_match(std::string(i->name), attrRegex))
continue;
string pathPrefix2 = addToPath(pathPrefix, i->name);
if (combineChannels)
getDerivations(state, *i->value, pathPrefix2, autoArgs, drvs, done, ignoreAssertionFailures);