qt: Add support for building for iOS. (#6594)

CMakeModules/GenerateSCMRev.cmake

@@ -1,55 +1,5 @@
-# Gets a UTC timstamp and sets the provided variable to it
-function(get_timestamp _var)
-    string(TIMESTAMP timestamp UTC)
-    set(${_var} "${timestamp}" PARENT_SCOPE)
-endfunction()
-
-list(APPEND CMAKE_MODULE_PATH "${SRC_DIR}/externals/cmake-modules")
-
-# Find the package here with the known path so that the GetGit commands can find it as well
-find_package(Git QUIET PATHS "${GIT_EXECUTABLE}")
-
-# generate git/build information
-include(GetGitRevisionDescription)
-get_git_head_revision(GIT_REF_SPEC GIT_REV)
-git_describe(GIT_DESC --always --long --dirty)
-git_branch_name(GIT_BRANCH)
-get_timestamp(BUILD_DATE)
-
-# Generate cpp with Git revision from template
-# Also if this is a CI build, add the build name (ie: Nightly, Canary) to the scm_rev file as well
-set(REPO_NAME "")
-set(BUILD_VERSION "0")
-if (DEFINED ENV{CI})
-  if (DEFINED ENV{GITHUB_ACTIONS})
-    set(BUILD_REPOSITORY $ENV{GITHUB_REPOSITORY})
-    set(BUILD_TAG $ENV{GITHUB_REF_NAME})
-  endif()
-
-  # regex capture the string nightly or canary into CMAKE_MATCH_1
-  string(REGEX MATCH "citra-emu/citra-?(.*)" OUTVAR ${BUILD_REPOSITORY})
-  if ("${CMAKE_MATCH_COUNT}" GREATER 0)
-    # capitalize the first letter of each word in the repo name.
-    string(REPLACE "-" ";" REPO_NAME_LIST ${CMAKE_MATCH_1})
-    foreach(WORD ${REPO_NAME_LIST})
-      string(SUBSTRING ${WORD} 0 1 FIRST_LETTER)
-      string(SUBSTRING ${WORD} 1 -1 REMAINDER)
-      string(TOUPPER ${FIRST_LETTER} FIRST_LETTER)
-      set(REPO_NAME "${REPO_NAME}${FIRST_LETTER}${REMAINDER}")
-    endforeach()
-    string(REGEX MATCH "${CMAKE_MATCH_1}-([0-9]+)" OUTVAR ${BUILD_TAG})
-    if (${CMAKE_MATCH_COUNT} GREATER 0)
-      set(BUILD_VERSION ${CMAKE_MATCH_1})
-    endif()
-    if (BUILD_VERSION)
-      # This leaves a trailing space on the last word, but we actually want that
-      # because of how it's styled in the title bar.
-      set(BUILD_FULLNAME "${REPO_NAME} ${BUILD_VERSION} ")
-    else()
-      set(BUILD_FULLNAME "")
-    endif()
-  endif()
-endif()
+list(APPEND CMAKE_MODULE_PATH "${SRC_DIR}/CMakeModules")
+include(GenerateBuildInfo)
 
 # The variable SRC_DIR must be passed into the script (since it uses the current build directory for all values of CMAKE_*_DIR)
 set(VIDEO_CORE "${SRC_DIR}/src/video_core")