12 files changed, 153 insertions, 0 deletions
diff --git a/Tests/CustomCommandByproducts/CMakeLists.txt b/Tests/CustomCommandByproducts/CMakeLists.txt
new file mode 100644
index 0000000..c39a536
--- /dev/null
+++ b/Tests/CustomCommandByproducts/CMakeLists.txt
@@ -0,0 +1,103 @@
+cmake_minimum_required(VERSION 3.1)
+project(CustomCommandByproducts C)
+
+# Generate a byproduct in a rule that runs in the target consuming it.
+add_custom_command(
+  OUTPUT timestamp1.txt
+  COMMAND ${CMAKE_COMMAND} -E copy_if_different
+    ${CMAKE_CURRENT_SOURCE_DIR}/byproduct1.c.in byproduct1.c
+  BYPRODUCTS byproduct1.c
+  COMMAND ${CMAKE_COMMAND} -E touch timestamp1.txt
+  DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/byproduct1.c.in
+  )
+
+# Generate a byproduct in a rule that runs in a dependency of the consumer.
+add_custom_command(
+  OUTPUT timestamp2.txt
+  COMMAND ${CMAKE_COMMAND} -E copy_if_different
+    ${CMAKE_CURRENT_SOURCE_DIR}/byproduct2.c.in byproduct2.c
+  BYPRODUCTS byproduct2.c
+  COMMAND ${CMAKE_COMMAND} -E touch timestamp2.txt
+  DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/byproduct2.c.in
+  )
+add_custom_target(Producer2 DEPENDS timestamp2.txt)
+
+# Generate a byproduct in a custom target.
+add_custom_target(Producer3_4
+  COMMAND ${CMAKE_COMMAND} -E copy_if_different
+    ${CMAKE_CURRENT_SOURCE_DIR}/byproduct3.c.in byproduct3.c
+  BYPRODUCTS byproduct3.c
+  )
+
+# Generate a byproduct in a custom target POST_BUILD command.
+add_custom_command(
+  TARGET Producer3_4 POST_BUILD
+  COMMAND ${CMAKE_COMMAND} -E copy_if_different
+    ${CMAKE_CURRENT_SOURCE_DIR}/byproduct4.c.in byproduct4.c
+  BYPRODUCTS byproduct4.c
+  )
+
+add_executable(ProducerExe ProducerExe.c)
+
+# Generate a byproduct in an executable POST_BUILD command.
+add_custom_command(
+  TARGET ProducerExe POST_BUILD
+  COMMAND ${CMAKE_COMMAND} -E copy_if_different
+    ${CMAKE_CURRENT_SOURCE_DIR}/byproduct5.c.in byproduct5.c
+  BYPRODUCTS byproduct5.c
+  )
+
+# Generate a byproduct in an executable PRE_LINK command.
+add_custom_command(
+  TARGET ProducerExe PRE_LINK
+  COMMAND ${CMAKE_COMMAND} -E copy_if_different
+    ${CMAKE_CURRENT_SOURCE_DIR}/byproduct6.c.in byproduct6.c
+  BYPRODUCTS byproduct6.c
+  )
+
+# Generate a byproduct in an executable PRE_BUILD command.
+add_custom_command(
+  TARGET ProducerExe PRE_BUILD
+  COMMAND ${CMAKE_COMMAND} -E copy_if_different
+    ${CMAKE_CURRENT_SOURCE_DIR}/byproduct7.c.in byproduct7.c
+  BYPRODUCTS byproduct7.c
+  )
+
+# Generate a byproduct in a custom command that consumes other byproducts.
+add_custom_command(OUTPUT timestamp8.txt
+  COMMAND ${CMAKE_COMMAND} -E copy_if_different
+    ${CMAKE_CURRENT_SOURCE_DIR}/byproduct8.c.in byproduct8.c
+  COMMAND ${CMAKE_COMMAND} -E touch timestamp8.txt
+  BYPRODUCTS byproduct8.c
+  DEPENDS
+    ${CMAKE_CURRENT_BINARY_DIR}/byproduct2.c
+    ${CMAKE_CURRENT_BINARY_DIR}/byproduct3.c
+    ${CMAKE_CURRENT_BINARY_DIR}/byproduct4.c
+    ${CMAKE_CURRENT_BINARY_DIR}/byproduct5.c
+    ${CMAKE_CURRENT_BINARY_DIR}/byproduct6.c
+    ${CMAKE_CURRENT_BINARY_DIR}/byproduct7.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/byproduct8.c.in
+  )
+
+# Add an executable consuming all the byproducts.
+add_executable(CustomCommandByproducts
+  CustomCommandByproducts.c
+  byproduct1.c timestamp1.txt
+  byproduct2.c
+  byproduct3.c
+  byproduct4.c
+  byproduct5.c
+  byproduct6.c
+  byproduct7.c
+  byproduct8.c timestamp8.txt
+  )
+add_dependencies(CustomCommandByproducts Producer2)
+add_dependencies(CustomCommandByproducts Producer3_4)
+add_dependencies(CustomCommandByproducts ProducerExe)
+
+if(CMAKE_GENERATOR STREQUAL "Ninja")
+  add_custom_target(CheckNinja ALL
+    COMMENT "Checking build.ninja"
+    COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_SOURCE_DIR}/ninja-check.cmake
+    )
+endif()
diff --git a/Tests/CustomCommandByproducts/CustomCommandByproducts.c b/Tests/CustomCommandByproducts/CustomCommandByproducts.c
new file mode 100644
index 0000000..d9db9e6
--- /dev/null
+++ b/Tests/CustomCommandByproducts/CustomCommandByproducts.c
@@ -0,0 +1,21 @@
+extern int byproduct1(void);
+extern int byproduct2(void);
+extern int byproduct3(void);
+extern int byproduct4(void);
+extern int byproduct5(void);
+extern int byproduct6(void);
+extern int byproduct7(void);
+extern int byproduct8(void);
+int main(void)
+{
+  return (
+    byproduct1() +
+    byproduct2() +
+    byproduct3() +
+    byproduct4() +
+    byproduct5() +
+    byproduct6() +
+    byproduct7() +
+    byproduct8() +
+    0);
+}
diff --git a/Tests/CustomCommandByproducts/ProducerExe.c b/Tests/CustomCommandByproducts/ProducerExe.c
new file mode 100644
index 0000000..78f2de1
--- /dev/null
+++ b/Tests/CustomCommandByproducts/ProducerExe.c
@@ -0,0 +1 @@
+int main(void) { return 0; }
diff --git a/Tests/CustomCommandByproducts/byproduct1.c.in b/Tests/CustomCommandByproducts/byproduct1.c.in
new file mode 100644
index 0000000..5c3cc24
--- /dev/null
+++ b/Tests/CustomCommandByproducts/byproduct1.c.in
@@ -0,0 +1 @@
+int byproduct1(void) { return 0; }
diff --git a/Tests/CustomCommandByproducts/byproduct2.c.in b/Tests/CustomCommandByproducts/byproduct2.c.in
new file mode 100644
index 0000000..eeb69ef
--- /dev/null
+++ b/Tests/CustomCommandByproducts/byproduct2.c.in
@@ -0,0 +1 @@
+int byproduct2(void) { return 0; }
diff --git a/Tests/CustomCommandByproducts/byproduct3.c.in b/Tests/CustomCommandByproducts/byproduct3.c.in
new file mode 100644
index 0000000..7d15310
--- /dev/null
+++ b/Tests/CustomCommandByproducts/byproduct3.c.in
@@ -0,0 +1 @@
+int byproduct3(void) { return 0; }
diff --git a/Tests/CustomCommandByproducts/byproduct4.c.in b/Tests/CustomCommandByproducts/byproduct4.c.in
new file mode 100644
index 0000000..8b243dd
--- /dev/null
+++ b/Tests/CustomCommandByproducts/byproduct4.c.in
@@ -0,0 +1 @@
+int byproduct4(void) { return 0; }
diff --git a/Tests/CustomCommandByproducts/byproduct5.c.in b/Tests/CustomCommandByproducts/byproduct5.c.in
new file mode 100644
index 0000000..47f5990
--- /dev/null
+++ b/Tests/CustomCommandByproducts/byproduct5.c.in
@@ -0,0 +1 @@
+int byproduct5(void) { return 0; }
diff --git a/Tests/CustomCommandByproducts/byproduct6.c.in b/Tests/CustomCommandByproducts/byproduct6.c.in
new file mode 100644
index 0000000..d70c14f
--- /dev/null
+++ b/Tests/CustomCommandByproducts/byproduct6.c.in
@@ -0,0 +1 @@
+int byproduct6(void) { return 0; }
diff --git a/Tests/CustomCommandByproducts/byproduct7.c.in b/Tests/CustomCommandByproducts/byproduct7.c.in
new file mode 100644
index 0000000..0be5006
--- /dev/null
+++ b/Tests/CustomCommandByproducts/byproduct7.c.in
@@ -0,0 +1 @@
+int byproduct7(void) { return 0; }
diff --git a/Tests/CustomCommandByproducts/byproduct8.c.in b/Tests/CustomCommandByproducts/byproduct8.c.in
new file mode 100644
index 0000000..abefd62
--- /dev/null
+++ b/Tests/CustomCommandByproducts/byproduct8.c.in
@@ -0,0 +1 @@
+int byproduct8(void) { return 0; }
diff --git a/Tests/CustomCommandByproducts/ninja-check.cmake b/Tests/CustomCommandByproducts/ninja-check.cmake
new file mode 100644
index 0000000..2fc3cc2
--- /dev/null
+++ b/Tests/CustomCommandByproducts/ninja-check.cmake
@@ -0,0 +1,20 @@
+file(READ build.ninja build_ninja)
+if("${build_ninja}" MATCHES [====[
+# Unknown Build Time Dependencies.
+# Tell Ninja that they may appear as side effects of build rules
+# otherwise ordered by order-only dependencies.
+
+((build [^:]*: phony [^\n]*
+)*)# ========]====])
+  set(phony "${CMAKE_MATCH_1}")
+  if(NOT phony)
+    message(STATUS "build.ninja correctly does not have extra phony rules")
+  else()
+    string(REGEX REPLACE "\n+$" "" phony "${phony}")
+    string(REGEX REPLACE "\n" "\n  " phony "  ${phony}")
+    message(FATAL_ERROR "build.ninja incorrectly has extra phony rules:\n"
+      "${phony}")
+  endif()
+else()
+  message(FATAL_ERROR "build.ninja is incorrectly missing expected block")
+endif()