Makefiles: Add support of DEPFILE for add_custom_command

Issue: #20286
Fixes: #21415

8 files changed, 105 insertions, 0 deletions

diff --git a/Tests/RunCMake/BuildDepends/CustomCommandDependencies-BadArgs-result.txt b/Tests/RunCMake/BuildDepends/CustomCommandDependencies-BadArgs-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/BuildDepends/CustomCommandDependencies-BadArgs-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/BuildDepends/CustomCommandDependencies-BadArgs-stderr.txt b/Tests/RunCMake/BuildDepends/CustomCommandDependencies-BadArgs-stderr.txt
new file mode 100644
index 0000000..cddea3c
--- /dev/null
+++ b/Tests/RunCMake/BuildDepends/CustomCommandDependencies-BadArgs-stderr.txt
@@ -0,0 +1,4 @@
+CMake Error at CustomCommandDependencies-BadArgs.cmake:[0-9]+ \(add_custom_command\):
+  add_custom_command IMPLICIT_DEPENDS and DEPFILE can not both be specified.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
diff --git a/Tests/RunCMake/BuildDepends/CustomCommandDependencies-BadArgs.cmake b/Tests/RunCMake/BuildDepends/CustomCommandDependencies-BadArgs.cmake
new file mode 100644
index 0000000..91ee338
--- /dev/null
+++ b/Tests/RunCMake/BuildDepends/CustomCommandDependencies-BadArgs.cmake
@@ -0,0 +1,10 @@
+enable_language(C)
+
+add_custom_command(OUTPUT main.c
+  DEPFILE main.c.d
+  IMPLICIT_DEPENDS C main.c.in
+  COMMAND "${CMAKE_COMMAND}" -DINFILE=main.c.in -DOUTFILE=main.c -DDEPFILE=main.c.d
+  -P "${CMAKE_CURRENT_SOURCE_DIR}/GenerateDepFile.cmake"
+  WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
+
+add_custom_target(mainc ALL DEPENDS main.c)
diff --git a/Tests/RunCMake/BuildDepends/CustomCommandDependencies.cmake b/Tests/RunCMake/BuildDepends/CustomCommandDependencies.cmake
new file mode 100644
index 0000000..28bbf11
--- /dev/null
+++ b/Tests/RunCMake/BuildDepends/CustomCommandDependencies.cmake
@@ -0,0 +1,73 @@
+enable_language(C)
+
+add_custom_command(OUTPUT main.c
+  DEPFILE main.c.d
+  COMMAND "${CMAKE_COMMAND}" -DINFILE=main.c.in -DOUTFILE=main.c -DDEPFILE=main.c.d
+  -P "${CMAKE_CURRENT_SOURCE_DIR}/GenerateDepFile.cmake"
+  WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
+
+add_custom_target(mainc ALL DEPENDS main.c)
+
+add_executable(main ${CMAKE_CURRENT_BINARY_DIR}/main.c)
+
+file(GENERATE OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/check-$<LOWER_CASE:$<CONFIG>>.cmake CONTENT "
+cmake_minimum_required(VERSION 3.19)
+set(check_pairs
+  \"$<TARGET_FILE:main>|${CMAKE_CURRENT_BINARY_DIR}/main.c.in\"
+  \"$<TARGET_FILE:main>|${CMAKE_CURRENT_BINARY_DIR}/main.c\"
+  )
+set(check_exes
+  \"$<TARGET_FILE:main>\"
+  )
+
+if (check_step EQUAL 2)
+  include(\"${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/Makefile.cmake\")
+  if (NOT CMAKE_DEPEND_INFO_FILES)
+    set(RunCMake_TEST_FAILED \"Variable CMAKE_DEPEND_INFO_FILES not found.\")
+  else()
+    foreach(DEPEND_INFO_FILE IN LISTS CMAKE_DEPEND_INFO_FILES)
+      include(\"${CMAKE_CURRENT_BINARY_DIR}/\${DEPEND_INFO_FILE}\")
+      if (NOT CMAKE_DEPENDS_DEPENDENCY_FILES)
+        set(RunCMake_TEST_FAILED \"Variable CMAKE_DEPENDS_DEPENDENCY_FILES not found.\")
+      else()
+        list(LENGTH CMAKE_DEPENDS_DEPENDENCY_FILES DEPENDENCY_FILES_SIZE)
+          math(EXPR STOP_INDEX \"\${DEPENDENCY_FILES_SIZE} - 1\")
+        foreach(INDEX RANGE 0 \${STOP_INDEX} 4)
+          math(EXPR OBJECT_INDEX \"\${INDEX} + 1\")
+          math(EXPR FORMAT_INDEX \"\${INDEX} + 2\")
+          math(EXPR DEP_INDEX \"\${INDEX} + 3\")
+          list(GET CMAKE_DEPENDS_DEPENDENCY_FILES \${OBJECT_INDEX} OBJECT_FILE)
+          list(GET CMAKE_DEPENDS_DEPENDENCY_FILES \${FORMAT_INDEX} DEP_FORMAT)
+          list(GET CMAKE_DEPENDS_DEPENDENCY_FILES \${DEP_INDEX} DEP_FILE)
+          if (NOT EXISTS \"${CMAKE_CURRENT_BINARY_DIR}/\${DEP_FILE}\")
+            set(RunCMake_TEST_FAILED \"File \${DEP_FILE} not found.\")
+          else()
+            cmake_path(APPEND TARGET_DEP_FILE \"${CMAKE_CURRENT_BINARY_DIR}\" \"\${DEPEND_INFO_FILE}\")
+            cmake_path(REPLACE_FILENAME TARGET_DEP_FILE \"compiler_depend.make\")
+            file(READ \"\${TARGET_DEP_FILE}\" DEPENDS_CONTENT)
+            if (WIN32)
+              string (REPLACE \"\\\\\" \"/\" DEPENDS_CONTENT \"\${DEPENDS_CONTENT}\")
+              string (TOLOWER \"\${DEPENDS_CONTENT}\" DEPENDS_CONTENT)
+              string (TOLOWER \"\${OBJECT_FILE}\" OBJECT_FILE)
+            else()
+              string(REPLACE \"\\\\ \" \" \" DEPENDS_CONTENT \"\${DEPENDS_CONTENT}\")
+            endif()
+            if(DEPEND_INFO_FILE MATCHES \"main\\\\.dir\")
+              if (DEP_FORMAT STREQUAL \"gcc\" AND NOT DEPENDS_CONTENT MATCHES \"\${OBJECT_FILE} *:.+main.c\")
+                set(RunCMake_TEST_FAILED \"Dependency file '\${TARGET_DEP_FILE}' badly generated:\\n\${DEPENDS_CONTENT}\")
+              endif()
+              if (DEP_FORMAT STREQUAL \"custom\" AND NOT DEPENDS_CONTENT MATCHES \"\${OBJECT_FILE} *:.+main.c.in\")
+                set(RunCMake_TEST_FAILED \"Dependency file '\${TARGET_DEP_FILE}' badly generated:\\n\${DEPENDS_CONTENT}\")
+              endif()
+            else()
+              if (NOT DEPENDS_CONTENT MATCHES \"\${OBJECT_FILE} *:.+main.c.in\")
+                set(RunCMake_TEST_FAILED \"Dependency file '\${TARGET_DEP_FILE}' badly generated:\\n\${DEPENDS_CONTENT}\")
+              endif()
+            endif()
+          endif()
+        endforeach()
+      endif()
+    endforeach()
+  endif()
+endif()
+")
diff --git a/Tests/RunCMake/BuildDepends/CustomCommandDependencies.step1.cmake b/Tests/RunCMake/BuildDepends/CustomCommandDependencies.step1.cmake
new file mode 100644
index 0000000..87576eb
--- /dev/null
+++ b/Tests/RunCMake/BuildDepends/CustomCommandDependencies.step1.cmake
@@ -0,0 +1,3 @@
+file(WRITE "${RunCMake_TEST_BINARY_DIR}/main.c.in" [[
+int main(void) { return 1; }
+]])
diff --git a/Tests/RunCMake/BuildDepends/CustomCommandDependencies.step2.cmake b/Tests/RunCMake/BuildDepends/CustomCommandDependencies.step2.cmake
new file mode 100644
index 0000000..69b21b8
--- /dev/null
+++ b/Tests/RunCMake/BuildDepends/CustomCommandDependencies.step2.cmake
@@ -0,0 +1,3 @@
+file(WRITE "${RunCMake_TEST_BINARY_DIR}/main.c.in" [[
+int main(void) { return 2; }
+]])
diff --git a/Tests/RunCMake/BuildDepends/GenerateDepFile.cmake b/Tests/RunCMake/BuildDepends/GenerateDepFile.cmake
new file mode 100644
index 0000000..f7d0f13
--- /dev/null
+++ b/Tests/RunCMake/BuildDepends/GenerateDepFile.cmake
@@ -0,0 +1,6 @@
+file(READ "${INFILE}" INCONTENT)
+file(WRITE "${OUTFILE}" "${INCONTENT}")
+
+string(REPLACE [[ ]] [[\ ]] OUTFILE "${OUTFILE}")
+string(REPLACE [[ ]] [[\ ]] INFILE "${INFILE}")
+file(WRITE "${DEPFILE}" "${OUTFILE}: ${INFILE}\n")
diff --git a/Tests/RunCMake/BuildDepends/RunCMakeTest.cmake b/Tests/RunCMake/BuildDepends/RunCMakeTest.cmake
index 23e222a..f40cde6 100644
--- a/Tests/RunCMake/BuildDepends/RunCMakeTest.cmake
+++ b/Tests/RunCMake/BuildDepends/RunCMakeTest.cmake
@@ -122,4 +122,9 @@ if ((RunCMake_GENERATOR STREQUAL "Unix Makefiles"
       AND MSVC_VERSION GREATER 1300
       AND CMAKE_C_COMPILER_ID STREQUAL "MSVC"))
   run_BuildDepends(CompilerDependencies)
+  run_BuildDepends(CustomCommandDependencies)
+endif()
+
+if (RunCMake_GENERATOR MATCHES "Makefiles")
+  run_cmake(CustomCommandDependencies-BadArgs)
 endif()