Reproduction cmake run command file

Generates file contains command line cmake run to reproduce previous
cmake pass through.

CI service use this run file to start pipeline with needs cmake
configuration that developer was make.

Following code pushing workflow: Commit pushed to a code review system
(`CMakeReplication.txt` required) -> CI service intercepts changes ->
Pipeline start using passed in commit cmake replication command -> CI
submit pipeline finished status

Signed-off-by: Alexey Gavrilov <alexey.gavrilov@mail.com>

1 files changed, 54 insertions, 0 deletions

diff --git a/cmake/module/runfile.cmake b/cmake/module/runfile.cmake
new file mode 100644
index 0000000..af196aa
--- /dev/null
+++ b/cmake/module/runfile.cmake
@@ -0,0 +1,54 @@
+get_property(IS_INITIALIZED GLOBAL PROPERTY CONFFILE_MODULE SET)
+
+if(NOT IS_INITIALIZED)
+    set_property(GLOBAL PROPERTY CONFFILE_MODULE TRUE)
+    set(CONFFILE_NAME "CMakeReplication.txt" CACHE STRING "Build configuration
+    file contains cmake run command to reproduce last run")
+endif()
+
+macro(convertCacheVarIntoArg var cachelist outfile)
+    if("${var}" IN_LIST ${cachelist} AND NOT "${${var}}" STREQUAL "")
+        file(APPEND ${${outfile}} " -D${var}=${${var}}")
+    endif()
+endmacro()
+
+macro(parseFeatures vars outfile)
+    # Make copy of cache variables
+    set(FEATURE_CACHE_VARS ${${vars}})
+    # Stay only features enumeration
+    list(FILTER FEATURE_CACHE_VARS INCLUDE REGEX "FEATURE_[A-Za-z0-9\.]+$")
+
+    foreach(FEATURE_VAR IN LISTS FEATURE_CACHE_VARS)
+        convertCacheVarIntoArg("${FEATURE_VAR}" ${vars} ${outfile})
+    endforeach()
+endmacro()
+
+macro(parseToolset vars outfile)
+    if("CMAKE_TOOLCHAIN_FILE" IN_LIST ${vars} AND NOT ${CMAKE_TOOLCHAIN_FILE})
+        cmake_path(GET CMAKE_TOOLCHAIN_FILE FILENAME TOOLCHAIN_FILE_NAME)
+        file(APPEND ${${outfile}}
+            " -DCMAKE_TOOLCHAIN_FILE="
+            "${ObjectiveProject_SOURCE_DIR}/cmake/toolchain/${TOOLCHAIN_FILE_NAME}")
+    else()
+        # If toolchain file isn't specifies, there are three things to pass
+        # in cmake: architecture, c++ compiler and build type
+        convertCacheVarIntoArg(ObjectiveProject_ARCHITECTURE ${vars} ${outfile})
+        cmake_path(GET CMAKE_CXX_COMPILER FILENAME COMPILER_EXECUTABLE)
+        if(NOT "${COMPILER_EXECUTABLE}" STREQUAL "")
+            file(APPEND ${${outfile}}
+                " -DCMAKE_CXX_COMPILER=${COMPILER_EXECUTABLE}")
+        endif()
+        convertCacheVarIntoArg(CMAKE_BUILD_TYPE ${vars} ${outfile})
+    endif()
+endmacro()
+
+function(confwrite)
+    set(OUT_FILE "${CMAKE_BINARY_DIR}/${CONFFILE_NAME}")
+
+    get_directory_property(cacheVars CACHE_VARIABLES)
+
+    file(WRITE ${OUT_FILE} "cmake")
+    parseToolset(cacheVars OUT_FILE)
+    parseFeatures(cacheVars OUT_FILE)
+    file(APPEND ${OUT_FILE} " -B autoconfbuild")
+endfunction()