From 3fc4c612fbde332d66b78dcc5b17b7d0d5235484 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Th=C3=A9ophane=20Hufschmitt?= <theophane@hufschmitt.net>
Date: Thu, 17 Mar 2022 11:34:31 +0100
Subject: Fix `nix build --dry-run` with CA derivations
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Don’t try and assume that we know the output paths when we’ve just built
with `--dry-run`. Instead make `--dry-run` follow a different code path
that won’t assume the knowledge of the output paths at all.

Fix #6275
---
 tests/build-dry.sh | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'tests/build-dry.sh')

diff --git a/tests/build-dry.sh b/tests/build-dry.sh
index e72533e70..f0f38e9a0 100644
--- a/tests/build-dry.sh
+++ b/tests/build-dry.sh
@@ -50,3 +50,22 @@ nix build -f dependencies.nix -o $RESULT --dry-run
 nix build -f dependencies.nix -o $RESULT
 
 [[ -h $RESULT ]]
+
+###################################################
+# Check the JSON output
+clearStore
+clearCache
+
+RES=$(nix build -f dependencies.nix --dry-run --json)
+
+if [[ -z "$NIX_TESTS_CA_BY_DEFAULT" ]]; then
+    echo "$RES" | jq '.[0] | [
+        (.drvPath | test("'$NIX_STORE_DIR'.*\\.drv")),
+        (.outputs.out | test("'$NIX_STORE_DIR'"))
+    ] | all'
+else
+    echo "$RES" | jq '.[0] | [
+        (.drvPath | test("'$NIX_STORE_DIR'.*\\.drv")),
+        .outputs.out == null
+    ] | all'
+fi
-- 
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