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* A test to verify that Nix executes build jobs in parallel, if
possible. This test fails right now because this hasn't been implemented right now. Yes, I'm doing Test-Driven Development! ;-)
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@ -1,5 +1,6 @@
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%: %.in Makefile
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sed \
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-e "s^@extra1\@^$(extra1)^g" \
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-e "s^@prefix\@^$(prefix)^g" \
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-e "s^@bindir\@^$(bindir)^g" \
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-e "s^@sysconfdir\@^$(sysconfdir)^g" \
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@ -1,5 +1,7 @@
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TEST_ROOT = $(shell pwd)/test-tmp
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extra1 = $(TEST_ROOT)/shared
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TESTS_ENVIRONMENT = TEST_ROOT=$(TEST_ROOT) \
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NIX_STORE_DIR=$(TEST_ROOT)/store \
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NIX_DATA_DIR=$(TEST_ROOT)/data \
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@ -7,19 +9,23 @@ TESTS_ENVIRONMENT = TEST_ROOT=$(TEST_ROOT) \
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NIX_STATE_DIR=$(TEST_ROOT)/state \
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NIX_DB_DIR=$(TEST_ROOT)/db \
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TOP=$(shell pwd)/.. \
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SHARED=$(extra1) \
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$(SHELL) -e -x
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simple.sh: simple.nix
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dependencies.sh: dependencies.nix
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locking.sh: locking.nix
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parallel.sh: parallel.nix
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TESTS = init.sh simple.sh dependencies.sh locking.sh
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TESTS = init.sh simple.sh dependencies.sh parallel.sh
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#locking.sh parallel.sh
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XFAIL_TESTS =
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XFAIL_TESTS = parallel.sh
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include ../substitute.mk
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EXTRA_DIST = $(TESTS) \
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simple.nix.in simple.builder.sh \
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dependencies.nix.in dependencies.builder*.sh \
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locking.nix.in locking.builder.sh
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locking.nix.in locking.builder.sh \
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parallel.nix.in parallel.builder.sh
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32
tests/parallel.builder.sh
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32
tests/parallel.builder.sh
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@ -0,0 +1,32 @@
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echo "DOING $text"
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export PATH=/bin:/usr/bin:$PATH
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# increase counter
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while ! ln -s x $shared.lock; do
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sleep 1
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done
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test -f $shared.cur || echo 0 > $shared.cur
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test -f $shared.max || echo 0 > $shared.max
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new=$(($(cat $shared.cur) + 1))
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if test $new -gt $(cat $shared.max); then
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echo $new > $shared.max
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fi
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echo $new > $shared.cur
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rm $shared.lock
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echo -n $(cat $inputs)$text > $out
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sleep 3
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# decrease counter
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while ! ln -s x $shared.lock; do
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sleep 1
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done
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test -f $shared.cur || echo 0 > $shared.cur
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echo $(($(cat $shared.cur) - 1)) > $shared.cur
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rm $shared.lock
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19
tests/parallel.nix.in
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19
tests/parallel.nix.in
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@ -0,0 +1,19 @@
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let {
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mkDrv = text: inputs: derivation {
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name = "parallel";
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system = "@system@";
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builder = "@shell@";
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args = ["-e" "-x" ./parallel.builder.sh];
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shared = "@extra1@";
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inherit text inputs;
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};
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a = mkDrv "a" [];
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b = mkDrv "b" [a];
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c = mkDrv "c" [b];
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d = mkDrv "d" [c];
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e = mkDrv "e" [b c d];
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body = e;
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}
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20
tests/parallel.sh
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20
tests/parallel.sh
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storeExpr=$($TOP/src/nix-instantiate/nix-instantiate parallel.nix)
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echo "store expr is $storeExpr"
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for i in $(seq 1 5); do
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echo "WORKER $i"
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$TOP/src/nix-store/nix-store -rvvB "$storeExpr" &
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done
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sleep 5
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outPath=$($TOP/src/nix-store/nix-store -qnfvvvvv "$storeExpr")
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echo "output path is $outPath"
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text=$(cat "$outPath")
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if test "$text" != "aabcade"; then exit 1; fi
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if test "$(cat $SHARED.cur)" != 0; then exit 1; fi
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if test "$(cat $SHARED.max)" != 3; then exit 1; fi
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