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Improve regression testing for uncachable source paths

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These now throw an error by default in the test suite.
This commit is contained in:
Eelco Dolstra 2025-06-16 18:25:55 +02:00
parent a175c67def
commit 3a4e6cadeb
7 changed files with 19 additions and 12 deletions
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8
src/libfetchers/fetch-to-store.cc
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@ -55,9 +55,13 @@ std::pair<StorePath, Hash> fetchToStore2(
}
debug("source path '%s' not in store", path);
}
} else
} else {
static auto barf = getEnv("_NIX_TEST_BARF_ON_UNCACHEABLE").value_or("") == "1";
if (barf)
throw Error("source path '%s' is uncacheable (filter=%d)", path, (bool) filter);
// FIXME: could still provide in-memory caching keyed on `SourcePath`.
debug("source path '%s' is uncacheable (%d, %d)", path, (bool) filter, (bool) fingerprint);
debug("source path '%s' is uncacheable", path);
}
Activity act(*logger, lvlChatty, actUnknown,
fmt(mode == FetchMode::DryRun ? "hashing '%s'" : "copying '%s' to the store", path));