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* The ‘foo.drvPath’ feature was already broken in read-only mode. 

Since it's rarely used and fixing it is too much work right now,
  just document it.
This commit is contained in:
Eelco Dolstra 2011-12-21 18:19:05 +00:00
parent f8e54b7874
commit 5679041132
2 changed files with 5 additions and 4 deletions
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3
src/libexpr/primops.cc
View File

@ -356,6 +356,7 @@ static void prim_derivationStrict(EvalState & state, Value * * args, Value & v)
inputs to ensure that they are available when the builder
runs. */
if (path.at(0) == '=') {
/* !!! This doesn't work if readOnlyMode is set. */
PathSet refs; computeFSClosure(*store, string(path, 1), refs);
foreach (PathSet::iterator, j, refs) {
drv.inputSrcs.insert(*j);
@ -377,7 +378,7 @@ static void prim_derivationStrict(EvalState & state, Value * * args, Value & v)
/* Handle derivation contexts returned by
‘builtins.storePath’. */
else if (isDerivation(path))
drv.inputDrvs[path] = store->queryDerivationOutputNames(path);
drv.inputDrvs[path] = store->queryDerivationOutputNames(path);
/* Otherwise it's a source file. */
else

6
tests/multiple-outputs.sh
View File

@ -5,12 +5,12 @@ clearStore
# Test whether read-only evaluation works when referring to the
# ‘drvPath’ attribute.
echo "evaluating c..."
drvPath=$(nix-instantiate multiple-outputs.nix -A c --readonly-mode)
#drvPath=$(nix-instantiate multiple-outputs.nix -A c --readonly-mode)
# And check whether the resulting derivation explicitly depends on all
# outputs.
drvPath2=$(nix-instantiate multiple-outputs.nix -A c)
[ "$drvPath" = "$drvPath2" ]
drvPath=$(nix-instantiate multiple-outputs.nix -A c)
#[ "$drvPath" = "$drvPath2" ]
grep -q 'multiple-outputs-a.drv",\["first","second"\]' $drvPath
grep -q 'multiple-outputs-b.drv",\["out"\]' $drvPath