mirror of
https://github.com/sal063/AC6_recomp
synced 2026-08-17 21:43:39 -04:00
salh
80 lines
2.9 KiB
CMake
80 lines
2.9 KiB
CMake
# cmake/embed_templates.cmake
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# Converts resources/templates/**/*.inja into C++ headers with constexpr string_view.
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#
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# Generates:
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# - One header per .inja file (e.g., cli_cmakelists.inja.h)
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# - A master embedded_templates.h with a map of canonical ID -> content
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#
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# Output goes to ${CMAKE_CURRENT_BINARY_DIR}/generated/templates/
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#
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# Note: Runs at configure time. Editing .inja files requires re-running
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# CMake configure to pick up changes.
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set(TEMPLATE_SOURCE_DIR "${REXGLUE_ROOT}/resources/templates")
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set(TEMPLATE_OUTPUT_DIR "${CMAKE_CURRENT_BINARY_DIR}/generated/templates")
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file(GLOB_RECURSE INJA_TEMPLATE_FILES "${TEMPLATE_SOURCE_DIR}/*.inja")
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# Validate delimiter safety
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set(FORBIDDEN_DELIMITER ")__TMPL__\"")
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set(EMBEDDED_INCLUDES "")
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set(EMBEDDED_MAP_ENTRIES "")
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foreach(TEMPLATE_FILE ${INJA_TEMPLATE_FILES})
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# Read the template content
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file(READ "${TEMPLATE_FILE}" TEMPLATE_CONTENT)
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# Check for delimiter collision
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string(FIND "${TEMPLATE_CONTENT}" "${FORBIDDEN_DELIMITER}" DELIMITER_POS)
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if(NOT DELIMITER_POS EQUAL -1)
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message(FATAL_ERROR
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"Template file contains forbidden raw string delimiter ')__TMPL__\"':\n"
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" ${TEMPLATE_FILE}\n"
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"Please remove or rename this sequence in the template.")
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endif()
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# Compute canonical ID: relative path without .inja extension
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file(RELATIVE_PATH REL_PATH "${TEMPLATE_SOURCE_DIR}" "${TEMPLATE_FILE}")
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string(REGEX REPLACE "\\.inja$" "" CANONICAL_ID "${REL_PATH}")
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# Compute C++ variable name: replace / and - with _
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string(REPLACE "/" "_" VAR_NAME "${CANONICAL_ID}")
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string(REPLACE "-" "_" VAR_NAME "${VAR_NAME}")
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# Generate individual header
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set(HEADER_FILE "${TEMPLATE_OUTPUT_DIR}/${VAR_NAME}.inja.h")
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file(WRITE "${HEADER_FILE}"
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"// Auto-generated from resources/templates/${REL_PATH} -- DO NOT EDIT\n"
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"#pragma once\n"
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"#include <string_view>\n\n"
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"namespace rex::codegen::embedded {\n"
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"inline constexpr std::string_view ${VAR_NAME} = R\"__TMPL__(\n"
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"${TEMPLATE_CONTENT}"
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")__TMPL__\";\n"
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"} // namespace rex::codegen::embedded\n"
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)
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# Accumulate for master header
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string(APPEND EMBEDDED_INCLUDES "#include \"${VAR_NAME}.inja.h\"\n")
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string(APPEND EMBEDDED_MAP_ENTRIES " {\"${CANONICAL_ID}\", embedded::${VAR_NAME}},\n")
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endforeach()
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# Generate master header
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file(WRITE "${TEMPLATE_OUTPUT_DIR}/embedded_templates.h"
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"// Auto-generated master template index -- DO NOT EDIT\n"
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"#pragma once\n\n"
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"#include <string_view>\n"
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"#include <unordered_map>\n"
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"#include <string>\n\n"
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"${EMBEDDED_INCLUDES}\n"
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"namespace rex::codegen {\n\n"
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"inline const std::unordered_map<std::string, std::string_view>& embeddedTemplates() {\n"
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" static const std::unordered_map<std::string, std::string_view> map = {\n"
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"${EMBEDDED_MAP_ENTRIES}"
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" };\n"
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" return map;\n"
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"}\n\n"
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"} // namespace rex::codegen\n"
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)
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