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-rw-r--r--tests/gc-auto.sh51
1 files changed, 30 insertions, 21 deletions
diff --git a/tests/gc-auto.sh b/tests/gc-auto.sh
index de1e2cfe4..b282644ca 100644
--- a/tests/gc-auto.sh
+++ b/tests/gc-auto.sh
@@ -13,24 +13,32 @@ fake_free=$TEST_ROOT/fake-free
export _NIX_TEST_FREE_SPACE_FILE=$fake_free
echo 1100 > $fake_free
+fifoLock=$TEST_ROOT/fifoLock
+mkfifo "$fifoLock"
+
expr=$(cat <<EOF
with import ./config.nix; mkDerivation {
name = "gc-A";
buildCommand = ''
set -x
[[ \$(ls \$NIX_STORE/*-garbage? | wc -l) = 3 ]]
+
mkdir \$out
echo foo > \$out/bar
- echo 1...
- sleep 2
- echo 200 > ${fake_free}.tmp1
+
+ # Pretend that we run out of space
+ echo 100 > ${fake_free}.tmp1
mv ${fake_free}.tmp1 $fake_free
- echo 2...
- sleep 2
- echo 3...
- sleep 2
- echo 4...
- [[ \$(ls \$NIX_STORE/*-garbage? | wc -l) = 1 ]]
+
+ # Wait for the GC to run
+ for i in {1..20}; do
+ echo ''\${i}...
+ if [[ \$(ls \$NIX_STORE/*-garbage? | wc -l) = 1 ]]; then
+ exit 0
+ fi
+ sleep 1
+ done
+ exit 1
'';
}
EOF
@@ -43,15 +51,9 @@ with import ./config.nix; mkDerivation {
set -x
mkdir \$out
echo foo > \$out/bar
- echo 1...
- sleep 2
- echo 200 > ${fake_free}.tmp2
- mv ${fake_free}.tmp2 $fake_free
- echo 2...
- sleep 2
- echo 3...
- sleep 2
- echo 4...
+
+ # Wait for the first build to finish
+ cat "$fifoLock"
'';
}
EOF
@@ -59,12 +61,19 @@ EOF
nix build -v -o $TEST_ROOT/result-A -L "($expr)" \
--min-free 1000 --max-free 2000 --min-free-check-interval 1 &
-pid=$!
+pid1=$!
nix build -v -o $TEST_ROOT/result-B -L "($expr2)" \
- --min-free 1000 --max-free 2000 --min-free-check-interval 1
+ --min-free 1000 --max-free 2000 --min-free-check-interval 1 &
+pid2=$!
-wait "$pid"
+# Once the first build is done, unblock the second one.
+# If the first build fails, we need to postpone the failure to still allow
+# the second one to finish
+wait "$pid1" || FIRSTBUILDSTATUS=$?
+echo "unlock" > $fifoLock
+( exit ${FIRSTBUILDSTATUS:-0} )
+wait "$pid2"
[[ foo = $(cat $TEST_ROOT/result-A/bar) ]]
[[ foo = $(cat $TEST_ROOT/result-B/bar) ]]