file(GENERATE): Support new line style

Fixes: #19198

11 files changed, 141 insertions, 0 deletions

diff --git a/Tests/RunCMake/File_Generate/NewLineStyle-Default.cmake b/Tests/RunCMake/File_Generate/NewLineStyle-Default.cmake
new file mode 100644
index 0000000..9df8ffe
--- /dev/null
+++ b/Tests/RunCMake/File_Generate/NewLineStyle-Default.cmake
@@ -0,0 +1,35 @@
+function(generate_from_file in out)
+  file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/file_ip.txt "${in}")
+  file(GENERATE
+    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/$<LOWER_CASE:$<CONFIG>>/file_op.txt
+    INPUT ${CMAKE_CURRENT_BINARY_DIR}/file_ip.txt
+    )
+
+  add_custom_target(verifyContentFromFile ALL
+    COMMAND ${CMAKE_COMMAND}
+      -DgeneratedFile=${CMAKE_CURRENT_BINARY_DIR}/$<LOWER_CASE:$<CONFIG>>/file_op.txt
+      -DexpectedContent=${out}
+      -P "${CMAKE_CURRENT_SOURCE_DIR}/VerifyContent.cmake"
+    )
+endfunction()
+
+function(generate_from_content in out)
+  file(GENERATE
+    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/$<LOWER_CASE:$<CONFIG>>/content_op.txt
+    CONTENT ${in}
+    )
+
+  add_custom_target(verifyContentFromContent ALL
+    COMMAND ${CMAKE_COMMAND}
+      -DgeneratedFile=${CMAKE_CURRENT_BINARY_DIR}/$<LOWER_CASE:$<CONFIG>>/content_op.txt
+      -DexpectedContent=${out}
+      -P "${CMAKE_CURRENT_SOURCE_DIR}/VerifyContent.cmake"
+    )
+endfunction()
+
+if (WIN32)
+  generate_from_file("a" "610d0a") # 62->b, 0d0a->\r\n
+elseif(UNIX)
+  generate_from_file("a" "610a") # 62->b, 0a->\n
+endif()
+generate_from_content("a" "61")
diff --git a/Tests/RunCMake/File_Generate/NewLineStyle-InvalidArg-result.txt b/Tests/RunCMake/File_Generate/NewLineStyle-InvalidArg-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/File_Generate/NewLineStyle-InvalidArg-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/File_Generate/NewLineStyle-InvalidArg-stderr.txt b/Tests/RunCMake/File_Generate/NewLineStyle-InvalidArg-stderr.txt
new file mode 100644
index 0000000..44e32d0
--- /dev/null
+++ b/Tests/RunCMake/File_Generate/NewLineStyle-InvalidArg-stderr.txt
@@ -0,0 +1,5 @@
+CMake Error at NewLineStyle-InvalidArg.cmake:[0-9]+ \(file\):
+  file GENERATE NEWLINE_STYLE sets an unknown style, only LF, CRLF, UNIX,
+  DOS, and WIN32 are supported
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
diff --git a/Tests/RunCMake/File_Generate/NewLineStyle-InvalidArg.cmake b/Tests/RunCMake/File_Generate/NewLineStyle-InvalidArg.cmake
new file mode 100644
index 0000000..578cf21
--- /dev/null
+++ b/Tests/RunCMake/File_Generate/NewLineStyle-InvalidArg.cmake
@@ -0,0 +1,7 @@
+file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/main.cpp")
+
+file(GENERATE
+  OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/main.cpp"
+  CONTENT "int main() { return 0; }\n"
+  NEWLINE_STYLE FOO
+  )
diff --git a/Tests/RunCMake/File_Generate/NewLineStyle-NoArg-result.txt b/Tests/RunCMake/File_Generate/NewLineStyle-NoArg-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/File_Generate/NewLineStyle-NoArg-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/File_Generate/NewLineStyle-NoArg-stderr.txt b/Tests/RunCMake/File_Generate/NewLineStyle-NoArg-stderr.txt
new file mode 100644
index 0000000..bc71f2f
--- /dev/null
+++ b/Tests/RunCMake/File_Generate/NewLineStyle-NoArg-stderr.txt
@@ -0,0 +1,4 @@
+CMake Error at NewLineStyle-NoArg.cmake:[0-9]+ \(file\):
+  file Incorrect arguments to GENERATE subcommand.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
diff --git a/Tests/RunCMake/File_Generate/NewLineStyle-NoArg.cmake b/Tests/RunCMake/File_Generate/NewLineStyle-NoArg.cmake
new file mode 100644
index 0000000..9bd2ffa
--- /dev/null
+++ b/Tests/RunCMake/File_Generate/NewLineStyle-NoArg.cmake
@@ -0,0 +1,7 @@
+file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/main.cpp")
+
+file(GENERATE
+  OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/main.cpp"
+  CONTENT "int main() { return 0; }\n"
+  NEWLINE_STYLE
+  )
diff --git a/Tests/RunCMake/File_Generate/NewLineStyle-Unix.cmake b/Tests/RunCMake/File_Generate/NewLineStyle-Unix.cmake
new file mode 100644
index 0000000..7c26217
--- /dev/null
+++ b/Tests/RunCMake/File_Generate/NewLineStyle-Unix.cmake
@@ -0,0 +1,33 @@
+function(generate_from_file in out)
+  file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/file_ip.txt "${in}")
+  file(GENERATE
+    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/$<LOWER_CASE:$<CONFIG>>/file_op.txt
+    INPUT ${CMAKE_CURRENT_BINARY_DIR}/file_ip.txt
+    NEWLINE_STYLE UNIX
+    )
+
+  add_custom_target(verifyContentFromFile ALL
+    COMMAND ${CMAKE_COMMAND}
+      -DgeneratedFile=${CMAKE_CURRENT_BINARY_DIR}/$<LOWER_CASE:$<CONFIG>>/file_op.txt
+      -DexpectedContent=${out}
+      -P "${CMAKE_CURRENT_SOURCE_DIR}/VerifyContent.cmake"
+    )
+endfunction()
+
+function(generate_from_content in out)
+  file(GENERATE
+    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/$<LOWER_CASE:$<CONFIG>>/content_op.txt
+    CONTENT ${in}
+    NEWLINE_STYLE UNIX
+    )
+
+  add_custom_target(verifyContentFromContent ALL
+    COMMAND ${CMAKE_COMMAND}
+      -DgeneratedFile=${CMAKE_CURRENT_BINARY_DIR}/$<LOWER_CASE:$<CONFIG>>/content_op.txt
+      -DexpectedContent=${out}
+      -P "${CMAKE_CURRENT_SOURCE_DIR}/VerifyContent.cmake"
+    )
+endfunction()
+
+generate_from_file("a" "610a") # 62->b, 0a->\n
+generate_from_content("a" "610a")
diff --git a/Tests/RunCMake/File_Generate/NewLineStyle-Win32.cmake b/Tests/RunCMake/File_Generate/NewLineStyle-Win32.cmake
new file mode 100644
index 0000000..394ef75
--- /dev/null
+++ b/Tests/RunCMake/File_Generate/NewLineStyle-Win32.cmake
@@ -0,0 +1,33 @@
+function(generate_from_file in out)
+  file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/file_ip.txt "${in}")
+  file(GENERATE
+    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/$<LOWER_CASE:$<CONFIG>>/file_op.txt
+    INPUT ${CMAKE_CURRENT_BINARY_DIR}/file_ip.txt
+    NEWLINE_STYLE WIN32
+    )
+
+  add_custom_target(verifyContentFromFile ALL
+    COMMAND ${CMAKE_COMMAND}
+      -DgeneratedFile=${CMAKE_CURRENT_BINARY_DIR}/$<LOWER_CASE:$<CONFIG>>/file_op.txt
+      -DexpectedContent=${out}
+      -P "${CMAKE_CURRENT_SOURCE_DIR}/VerifyContent.cmake"
+    )
+endfunction()
+
+function(generate_from_content in out)
+  file(GENERATE
+    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/$<LOWER_CASE:$<CONFIG>>/content_op.txt
+    CONTENT ${in}
+    NEWLINE_STYLE WIN32
+    )
+
+  add_custom_target(verifyContentFromContent ALL
+    COMMAND ${CMAKE_COMMAND}
+      -DgeneratedFile=${CMAKE_CURRENT_BINARY_DIR}/$<LOWER_CASE:$<CONFIG>>/content_op.txt
+      -DexpectedContent=${out}
+      -P "${CMAKE_CURRENT_SOURCE_DIR}/VerifyContent.cmake"
+    )
+endfunction()
+
+generate_from_file("a" "610d0a") # 62->b, 0d0a->\r\n
+generate_from_content("a" "610d0a")
diff --git a/Tests/RunCMake/File_Generate/RunCMakeTest.cmake b/Tests/RunCMake/File_Generate/RunCMakeTest.cmake
index 51491af..be3bf04 100644
--- a/Tests/RunCMake/File_Generate/RunCMakeTest.cmake
+++ b/Tests/RunCMake/File_Generate/RunCMakeTest.cmake
@@ -135,6 +135,11 @@ function(run_cmake_and_verify_after_build case)
   file(REMOVE_RECURSE "${RunCMake_TEST_BINARY_DIR}")
   file(MAKE_DIRECTORY "${RunCMake_TEST_BINARY_DIR}")
   set(RunCMake_TEST_NO_CLEAN 1)
+  if(RunCMake_GENERATOR_IS_MULTI_CONFIG)
+    set(RunCMake_TEST_OPTIONS -DCMAKE_CONFIGURATION_TYPES=Debug)
+  else()
+    set(RunCMake_TEST_OPTIONS -DCMAKE_BUILD_TYPE=Debug)
+  endif()
   run_cmake(${case})
   run_cmake_command("${case}-build" ${CMAKE_COMMAND} --build .)
   unset(RunCMake_TEST_NO_CLEAN)
@@ -144,3 +149,9 @@ endfunction()
 run_cmake_and_verify_after_build(NoSourcePermissions)
 run_cmake_and_verify_after_build(UseSourcePermissions)
 run_cmake_and_verify_after_build(CustomFilePermissions)
+
+run_cmake(NewLineStyle-NoArg)
+run_cmake(NewLineStyle-InvalidArg)
+run_cmake_and_verify_after_build(NewLineStyle-Default)
+run_cmake_and_verify_after_build(NewLineStyle-Unix)
+run_cmake_and_verify_after_build(NewLineStyle-Win32)
diff --git a/Tests/RunCMake/File_Generate/VerifyContent.cmake b/Tests/RunCMake/File_Generate/VerifyContent.cmake
new file mode 100644
index 0000000..8563708
--- /dev/null
+++ b/Tests/RunCMake/File_Generate/VerifyContent.cmake
@@ -0,0 +1,4 @@
+file(READ ${generatedFile} actualContent HEX)
+if(NOT "${actualContent}" STREQUAL "${expectedContent}")
+    message(SEND_ERROR "Content mismatch actual: \"${actualContent}\" expected: \"${expectedContent}\"")
+endif()