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Add disallowedReferences / disallowedRequisites 

For the "stdenv accidentally referring to bootstrap-tools", it seems
easier to specify the path that we don't want to depend on, e.g.

  disallowedRequisites = [ bootstrapTools ];
This commit is contained in:
Eelco Dolstra 2014-08-28 18:57:13 +02:00
parent 9eddf6f0b6
commit b72e93bca8
5 changed files with 64 additions and 28 deletions
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55
src/libstore/build.cc
View File

@ -2318,33 +2318,36 @@ void DerivationGoal::registerOutputs()
debug(format("referenced input: ‘%1%’") % *i);
}
/* If the derivation specifies an `allowedReferences'
attribute (containing a list of paths that the output may
refer to), check that all references are in that list. !!!
allowedReferences should really be per-output. */
if (drv.env.find("allowedReferences") != drv.env.end()) {
PathSet allowed = parseReferenceSpecifiers(drv, get(drv.env, "allowedReferences"));
foreach (PathSet::iterator, i, references)
if (allowed.find(*i) == allowed.end())
throw BuildError(format("output (‘%1%’) is not allowed to refer to path ‘%2%’") % actualPath % *i);
}
/* Enforce `allowedReferences' and friends. */
auto checkRefs = [&](const string & attrName, bool allowed, bool recursive) {
if (drv.env.find(attrName) == drv.env.end()) return;
/* If the derivation specifies an `allowedRequisites'
attribute (containing a list of paths that the output may
refer to), check that all requisites are in that list. !!!
allowedRequisites should really be per-output. */
if (drv.env.find("allowedRequisites") != drv.env.end()) {
PathSet allowed = parseReferenceSpecifiers(drv, get(drv.env, "allowedRequisites"));
PathSet requisites;
/* Our requisites are the union of the closures of our references. */
foreach (PathSet::iterator, i, references)
/* Don't call computeFSClosure on ourselves. */
if (actualPath != *i)
computeFSClosure(worker.store, *i, requisites);
foreach (PathSet::iterator, i, requisites)
if (allowed.find(*i) == allowed.end())
throw BuildError(format("output (‘%1%’) is not allowed to refer to requisite path ‘%2%’") % actualPath % *i);
}
PathSet spec = parseReferenceSpecifiers(drv, get(drv.env, attrName));
PathSet used;
if (recursive) {
/* Our requisites are the union of the closures of our references. */
for (auto & i : references)
/* Don't call computeFSClosure on ourselves. */
if (actualPath != i)
computeFSClosure(worker.store, i, used);
} else
used = references;
for (auto & i : used)
if (allowed) {
if (spec.find(i) == spec.end())
throw BuildError(format("output (‘%1%’) is not allowed to refer to path ‘%2%’") % actualPath % i);
} else {
if (spec.find(i) != spec.end())
throw BuildError(format("output (‘%1%’) is not allowed to refer to path ‘%2%’") % actualPath % i);
}
};
checkRefs("allowedReferences", true, false);
checkRefs("allowedRequisites", true, true);
checkRefs("disallowedReferences", false, false);
checkRefs("disallowedRequisites", false, true);
worker.store.optimisePath(path); // FIXME: combine with scanForReferences()

12
tests/check-refs.nix
View File

@ -55,4 +55,16 @@ rec {
inherit dep;
};
test9 = makeTest 9 {
builder = builtins.toFile "builder.sh" "mkdir $out; ln -s $dep $out/link";
inherit dep;
disallowedReferences = [dep];
};
test10 = makeTest 10 {
builder = builtins.toFile "builder.sh" "mkdir $out; echo $test5; ln -s $dep $out/link";
inherit dep test5;
disallowedReferences = [test5];
};
}

6
tests/check-refs.sh
View File

@ -32,3 +32,9 @@ nix-build -o $RESULT check-refs.nix -A test7
# test8 should fail (toFile depending on derivation output).
(! nix-build -o $RESULT check-refs.nix -A test8)
# test9 should fail (disallowed reference).
(! nix-build -o $RESULT check-refs.nix -A test9)
# test10 should succeed (no disallowed references).
nix-build -o $RESULT check-refs.nix -A test10

14
tests/check-reqs.nix
View File

@ -40,4 +40,18 @@ rec {
test3 = makeTest 3 [ dep1 deps ];
test4 = makeTest 4 [ deps ];
test5 = makeTest 5 [];
test6 = mkDerivation {
name = "check-reqs";
inherit deps;
builder = builtins.toFile "builder.sh" "mkdir $out; ln -s $deps $out/depdir1";
disallowedRequisites = [dep1];
};
test7 = mkDerivation {
name = "check-reqs";
inherit deps;
builder = builtins.toFile "builder.sh" "mkdir $out; ln -s $deps $out/depdir1";
disallowedRequisites = [test1];
};
}

5
tests/check-reqs.sh
View File

@ -2,11 +2,12 @@ source common.sh
RESULT=$TEST_ROOT/result
# test1 should succeed.
nix-build -o $RESULT check-reqs.nix -A test1
# test{2,3,4,5} should fail.
(! nix-build -o $RESULT check-reqs.nix -A test2)
(! nix-build -o $RESULT check-reqs.nix -A test3)
(! nix-build -o $RESULT check-reqs.nix -A test4)
(! nix-build -o $RESULT check-reqs.nix -A test5)
(! nix-build -o $RESULT check-reqs.nix -A test6)
nix-build -o $RESULT check-reqs.nix -A test7