tests/post-hook: test to see if all outputs are passed

fe5509df caused only wanted outputs to be passed to the
post-build-hook, which resulted in paths being built
without ever going into the hook.

This commit adds a (currently failing) test for this.

tests/post-hook.sh

@@ -17,6 +17,9 @@ fi
 
 # Build the dependencies and push them to the remote store.
 nix-build -o $TEST_ROOT/result dependencies.nix --post-build-hook "$pushToStore"
+# See if all outputs are passed to the post-build hook by only specifying one
+export BUILD_HOOK_ONLY_OUT_PATHS=1
+nix-build -o $TEST_ROOT/result-mult multiple-outputs.nix -A a.first --post-build-hook "$pushToStore"
 
 clearStore
 
@@ -24,3 +27,4 @@ clearStore
 # closure of what we've just built.
 nix copy --from "$REMOTE_STORE" --no-require-sigs -f dependencies.nix
 nix copy --from "$REMOTE_STORE" --no-require-sigs -f dependencies.nix input1_drv
+nix copy --from "$REMOTE_STORE" --no-require-sigs -f multiple-outputs.nix a^second

tests/push-to-store-old.sh

@@ -7,4 +7,8 @@ set -e
 [ -n "$DRV_PATH" ]
 
 echo Pushing "$OUT_PATHS" to "$REMOTE_STORE"
+if [ -n "$BUILD_HOOK_ONLY_OUT_PATHS" ]; then
+    printf "%s" "$OUT_PATHS" | xargs nix copy --to "$REMOTE_STORE" --no-require-sigs
+else
     printf "%s" "$DRV_PATH" | xargs nix copy --to "$REMOTE_STORE" --no-require-sigs
+fi

tests/push-to-store.sh

@@ -7,4 +7,8 @@ set -e
 [ -n "$DRV_PATH" ]
 
 echo Pushing "$OUT_PATHS" to "$REMOTE_STORE"
+if [ -n "$BUILD_HOOK_ONLY_OUT_PATHS" ]; then
+    printf "%s" "$OUT_PATHS" | xargs nix copy --to "$REMOTE_STORE" --no-require-sigs
+else
     printf "%s" "$DRV_PATH"^'*' | xargs nix copy --to "$REMOTE_STORE" --no-require-sigs
+fi