tests/BuildSystem/Build/basic.llbuild

# Check basic building functionality.
#
# RUN: rm -rf %t.build
# RUN: mkdir -p %t.build
# RUN: touch "%t.build/input A"
# RUN: cp %s %t.build/build.llbuild
# RUN: %{llbuild} buildsystem build --serial --chdir %t.build --trace %t.trace > %t.out
# RUN: %{FileCheck} --input-file=%t.out %s
# RUN: diff "%t.build/input A" %t.build/output
#
# CHECK: /usr/bin/env
# CHECK-NOT: PATH=
# CHECK: ENV_KEY=ENV_VALUE
# CHECK: cp 'input A' output

# Check the engine trace.
#
# RUN: %{FileCheck} --input-file=%t.trace %s --check-prefix CHECK-TRACE
#
# CHECK-TRACE: "build-started"
# CHECK-TRACE: "new-rule", "R1", "Tbasic"
# CHECK-TRACE: "new-rule", "R2", "Noutput"
# CHECK-TRACE: "new-rule", "R3", "Ccp-output"
# CHECK-TRACE: "new-rule", "R4", "N<env>"
# CHECK-TRACE: "build-ended"

# Check that a null build does nothing.
#
# RUN: %{llbuild} buildsystem build --serial --chdir %t.build > %t2.out
# RUN: echo "PREVENT-EMPTY-FILE" >> %t2.out
# RUN: %{FileCheck} --input-file=%t2.out %s --check-prefix=CHECK-REBUILD
#
# CHECK-REBUILD-NOT: cp 'input A' output

# Check that we properly copy the output when the input changes.
#
# RUN: echo mod >> "%t.build/input A"
# RUN: %{llbuild} buildsystem build --serial --chdir %t.build > %t3.out
# RUN: %{FileCheck} --input-file=%t3.out %s --check-prefix=CHECK-REBUILD-MODIFIED
# RUN: diff "%t.build/input A" %t.build/output
#
# CHECK-REBUILD-MODIFIED: cp 'input A' output

# Check that we properly copy the output when the output isn't present.
#
# RUN: rm -rf %t.build/output
# RUN: %{llbuild} buildsystem build --serial --chdir %t.build > %t4.out
# RUN: %{FileCheck} --input-file=%t4.out %s --check-prefix=CHECK-REBUILD-OUTPUT-REMOVED
# RUN: diff "%t.build/input A" %t.build/output
#
# CHECK-REBUILD-OUTPUT-REMOVED: cp 'input A' output

client:
  name: basic

targets:
  basic: ["output"]
# define the default target to execute when this manifest is loaded.
default: basic

commands:
  "<env>":
    tool: shell
    outputs: ["<env>"]
    args: ["/usr/bin/env"]
    env:
      ENV_KEY: ENV_VALUE
    
  cp-output:
    tool: shell
    inputs: ["input A", "<env>"]
    outputs: ["output"]
    # FIXME: Design a limited mechanism for substitution. Might be tool specific.
    args: ["cp", "input A", "output"]