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Compiler detection: Cache compiler hash #42994

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Merged
Billy O'Neal (BillyONeal) merged 4 commits into from
Jan 16, 2025
Merged

Compiler detection: Cache compiler hash #42994

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b566ca1
Compiler detection: Cache compiler hash
autoantwort Dec 30, 2024
2dde1b5
Apply suggestions from code review
autoantwort Jan 3, 2025
859efe5
Only read and write the cache file once
autoantwort Jan 3, 2025
117bd10
Update scripts/detect_compiler/portfile.cmake
autoantwort Jan 4, 2025
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41 changes: 39 additions & 2 deletions scripts/detect_compiler/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -11,8 +11,45 @@ endif()
enable_language(C)
enable_language(CXX)

file(SHA1 "${CMAKE_CXX_COMPILER}" CXX_HASH)
file(SHA1 "${CMAKE_C_COMPILER}" C_HASH)
if(VCPKG_COMPILER_CACHE_FILE)
if(EXISTS "${VCPKG_COMPILER_CACHE_FILE}")
file(READ "${VCPKG_COMPILER_CACHE_FILE}" JSON_CONTENT)
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else()
set(JSON_CONTENT "{}")
endif()

function(get_hash compiler_path out_var)
file(TO_CMAKE_PATH "${compiler_path}" "compiler_path")
file(SIZE "${compiler_path}" SIZE)
file(TIMESTAMP "${compiler_path}" TIMESTAMP "%s" UTC)

string(JSON COMPILER_EXISTS ERROR_VARIABLE JSON_ERROR GET "${JSON_CONTENT}" "${compiler_path}")
if(NOT JSON_ERROR)
# Get compiler attributes using JSON API
string(JSON SIZE_JSON GET "${JSON_CONTENT}" "${compiler_path}" "size")
string(JSON TIMESTAMP_JSON GET "${JSON_CONTENT}" "${compiler_path}" "timestamp")
string(JSON HASH_JSON GET "${JSON_CONTENT}" "${compiler_path}" "hash")
if ((SIZE_JSON EQUAL SIZE) AND (TIMESTAMP_JSON EQUAL TIMESTAMP))
set("${out_var}" "${HASH_JSON}" PARENT_SCOPE)
return()
endif()
endif()
file(SHA1 "${compiler_path}" HASH)
# Add new entry to JSON
string(JSON JSON_CONTENT SET "${JSON_CONTENT}" "${compiler_path}" "{\"size\": ${SIZE}, \"timestamp\": ${TIMESTAMP}, \"hash\": \"${HASH}\"}")
set("${out_var}" "${HASH}" PARENT_SCOPE)
set(JSON_CONTENT "${JSON_CONTENT}" PARENT_SCOPE)
endfunction()

get_hash("${CMAKE_C_COMPILER}" C_HASH)
get_hash("${CMAKE_CXX_COMPILER}" CXX_HASH)

# Write updated JSON back to file
file(WRITE "${VCPKG_COMPILER_CACHE_FILE}" "${JSON_CONTENT}")
else()
file(SHA1 "${CMAKE_CXX_COMPILER}" CXX_HASH)
file(SHA1 "${CMAKE_C_COMPILER}" C_HASH)
endif()
string(SHA1 COMPILER_HASH "${C_HASH}${CXX_HASH}")

message("#COMPILER_HASH#${COMPILER_HASH}")
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3 changes: 3 additions & 0 deletions scripts/detect_compiler/portfile.cmake
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Expand Up @@ -18,6 +18,9 @@ set(VCPKG_BUILD_TYPE release)
vcpkg_configure_cmake(
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SOURCE_PATH "${CMAKE_CURRENT_LIST_DIR}"
PREFER_NINJA
OPTIONS
"-DVCPKG_COMPILER_CACHE_FILE=${VCPKG_COMPILER_CACHE_FILE}"

)

foreach(LOG IN LISTS LOGS)
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