File: cycle-detection.ninja

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# Check that we report cycles.

# RUN: rm -rf %t.build
# RUN: mkdir -p %t.build
# RUN: cp %s %t.build/build.ninja
# RUN: %{sh-invoke} -c "%{llbuild} ninja build --jobs 1 --no-db --chdir %t.build; echo \"exit code: $?\"" &> %t.out
# RUN: %{FileCheck} < %t.out %s

# CHECK: cycle detected among targets: "{{/.*/}}output" -> "{{/.*/}}output-1" -> "{{/.*/}}intermediate" -> "{{/.*/}}output-2" -> "{{/.*/}}output-1"
# CHECK-NOT: command failure
# CHECK: exit code: 1

rule CAT
     command = cat ${in} > ${out}

build output-1: CAT intermediate
build intermediate: CAT output-2
build output-2: CAT output-1
build output: CAT output-1 output-2