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# Demonstrates the current "recommended" way of modeling mutable outputs. We do
# not yet have the ability to offer strong support for these situations, but
# this approach uses command dependencies and the node "is-mutable" flag to
# emulate support as best as possible.
# Check the behavior of command dependencies.
#
# RUN: rm -rf %t.build
# RUN: mkdir -p %t.build
# RUN: printf Hello > %t.build/input
# RUN: cp %s %t.build/build.llbuild
# Both commands should run on the initial build.
#
# RUN: %{llbuild} buildsystem build --serial --chdir %t.build > %t.initial.out
# RUN: %{FileCheck} --check-prefix CHECK-INITIAL-LOG --input-file %t.initial.out %s
# RUN: printf "Hello, world!\n" > %t.build/expected-output
# RUNX: diff %t.build/output %t.build/expected-output
#
# CHECK-INITIAL-LOG: C.create
# CHECK-INITIAL-LOG: C.mutate
# No commands should run on a null rebuild.
#
# RUN: %{llbuild} buildsystem build --serial --chdir %t.build > %t.null.out
# RUN: echo EOF >> %t.null.out
# RUN: %{FileCheck} --check-prefix CHECK-NULL-LOG --input-file %t.null.out %s
# RUN: printf "Hello, world!\n" > %t.build/expected-output
# RUNX: diff %t.build/output %t.build/expected-output
#
# CHECK-NULL-LOG-NOT: C.
# CHECK-NULL-LOG: EOF
# Forcing the initial command to run should cause them both to run again.
#
# RUN: printf "Hello there" > %t.build/input
# RUN: %{llbuild} buildsystem build --serial --chdir %t.build > %t.rebuild.out
# RUN: %{FileCheck} --check-prefix CHECK-REBUILD-LOG --input-file %t.rebuild.out %s
# RUN: printf "Hello there, world!\n" > %t.build/expected-output
# RUNX: diff %t.build/output %t.build/expected-output
#
# CHECK-REBUILD-LOG: C.create
# CHECK-REBUILD-LOG: C.mutate
# If the output file was removed, they should both to run again.
#
# RUN: rm %t.build/output
# RUN: %{llbuild} buildsystem build --serial --chdir %t.build > %t.rebuild.out
# RUN: %{FileCheck} --check-prefix CHECK-REMOVAL-LOG --input-file %t.rebuild.out %s
# RUN: printf "Hello there, world!\n" > %t.build/expected-output
# RUNX: diff %t.build/output %t.build/expected-output
#
# CHECK-REMOVAL-LOG: C.create
# CHECK-REMOVAL-LOG: C.mutate
client:
name: basic
targets:
"": ["<C.mutate>"]
nodes:
"<C.create.timestamp>":
is-command-timestamp: true
"output":
is-mutated: true
commands:
C.mutate:
tool: shell
inputs: ["<C.create.timestamp>"]
outputs: ["<C.mutate>"]
description: C.mutate
args: test -f output && echo ", world!" >> output
C.create:
tool: shell
inputs: ["input"]
outputs: ["output", "<C.create.timestamp>"]
description: C.create
args: cp input output
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