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* Negative caching, i.e. caching of build failures. Disabled by

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default.  This is mostly useful for Hydra.
This commit is contained in:
Eelco Dolstra 2009-03-25 21:05:42 +00:00
parent 7024a1ef07
commit 92f525ecf4
7 changed files with 140 additions and 7 deletions
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3
tests/Makefile.am
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@ -7,7 +7,7 @@ TESTS = init.sh hash.sh lang.sh add.sh simple.sh dependencies.sh \
fallback.sh nix-push.sh gc.sh gc-concurrent.sh verify.sh nix-pull.sh \
referrers.sh user-envs.sh logging.sh nix-build.sh misc.sh fixed.sh \
gc-runtime.sh install-package.sh check-refs.sh filter-source.sh \
remote-store.sh export.sh export-graph.sh
remote-store.sh export.sh export-graph.sh negative-caching.sh
XFAIL_TESTS =
@ -30,5 +30,6 @@ EXTRA_DIST = $(TESTS) \
check-refs.nix \
filter-source.nix \
export-graph.nix \
negative-caching.nix \
$(wildcard lang/*.nix) $(wildcard lang/*.exp) $(wildcard lang/*.exp.xml) $(wildcard lang/*.flags) \
common.sh.in

21
tests/negative-caching.nix Normal file
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@ -0,0 +1,21 @@
with import ./config.nix;
rec {
fail = mkDerivation {
name = "fail";
builder = builtins.toFile "builder.sh" "echo FAIL; exit 1";
};
succeed = mkDerivation {
name = "succeed";
builder = builtins.toFile "builder.sh" "echo SUCCEED; mkdir $out";
};
depOnFail = mkDerivation {
name = "dep-on-fail";
builder = builtins.toFile "builder.sh" "echo URGH; mkdir $out";
inputs = [fail succeed];
};
}

22
tests/negative-caching.sh Normal file
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@ -0,0 +1,22 @@
source common.sh
clearStore
set +e
opts="--option build-cache-failure true --print-build-trace"
# This build should fail, and the failure should be cached.
log=$($nixbuild $opts negative-caching.nix -A fail 2>&1) && fail "should fail"
echo "$log" | grep -q "@ build-failed" || fail "no build-failed trace"
# Do it again. The build shouldn't be tried again.
log=$($nixbuild $opts negative-caching.nix -A fail 2>&1) && fail "should fail"
echo "$log" | grep -q "FAIL" && fail "failed build not cached"
echo "$log" | grep -q "@ build-failed .* cached" || fail "trace doesn't say cached"
# Check that --keep-going works properly with cached failures.
log=$($nixbuild $opts --keep-going negative-caching.nix -A depOnFail 2>&1) && fail "should fail"
echo "$log" | grep -q "FAIL" && fail "failed build not cached (2)"
echo "$log" | grep -q "@ build-failed .* cached" || fail "trace doesn't say cached (2)"
echo "$log" | grep -q "@ build-succeeded .*-succeed" || fail "didn't keep going"