LibUnicode: Functionalize downloading of UCD data files

Meta/CMake/unicode_data.cmake

@@ -55,55 +55,27 @@ set(CLDR_MISC_PATH "${LOCALE_DATA_CACHE_LOCATION}/${CLDR_MISC_SOURCE}")
 set(CLDR_NUMBERS_SOURCE cldr-numbers-modern)
 set(CLDR_NUMBERS_PATH "${LOCALE_DATA_CACHE_LOCATION}/${CLDR_NUMBERS_SOURCE}")
 
-if (ENABLE_UNICODE_DATABASE_DOWNLOAD)
-    if (NOT EXISTS ${UNICODE_DATA_PATH})
-        message(STATUS "Downloading UCD UnicodeData.txt from ${UNICODE_DATA_URL}...")
-        file(DOWNLOAD ${UNICODE_DATA_URL} ${UNICODE_DATA_PATH} INACTIVITY_TIMEOUT 10)
-    endif()
-    if (NOT EXISTS ${SPECIAL_CASING_PATH})
-        message(STATUS "Downloading UCD SpecialCasing.txt from ${SPECIAL_CASING_URL}...")
-        file(DOWNLOAD ${SPECIAL_CASING_URL} ${SPECIAL_CASING_PATH} INACTIVITY_TIMEOUT 10)
-    endif()
-    if (NOT EXISTS ${DERIVED_GENERAL_CATEGORY_PATH})
-        message(STATUS "Downloading UCD DerivedGeneralCategory.txt from ${DERIVED_GENERAL_CATEGORY_URL}...")
-        file(DOWNLOAD ${DERIVED_GENERAL_CATEGORY_URL} ${DERIVED_GENERAL_CATEGORY_PATH} INACTIVITY_TIMEOUT 10)
-    endif()
-    if (NOT EXISTS ${PROP_LIST_PATH})
-        message(STATUS "Downloading UCD PropList.txt from ${PROP_LIST_URL}...")
-        file(DOWNLOAD ${PROP_LIST_URL} ${PROP_LIST_PATH} INACTIVITY_TIMEOUT 10)
-    endif()
-    if (NOT EXISTS ${DERIVED_CORE_PROP_PATH})
-        message(STATUS "Downloading UCD DerivedCoreProperties.txt from ${DERIVED_CORE_PROP_URL}...")
-        file(DOWNLOAD ${DERIVED_CORE_PROP_URL} ${DERIVED_CORE_PROP_PATH} INACTIVITY_TIMEOUT 10)
-    endif()
-    if (NOT EXISTS ${DERIVED_BINARY_PROP_PATH})
-        message(STATUS "Downloading UCD DerivedBinaryProperties.txt from ${DERIVED_BINARY_PROP_URL}...")
-        file(DOWNLOAD ${DERIVED_BINARY_PROP_URL} ${DERIVED_BINARY_PROP_PATH} INACTIVITY_TIMEOUT 10)
-    endif()
-    if (NOT EXISTS ${PROP_ALIAS_PATH})
-        message(STATUS "Downloading UCD PropertyAliases.txt from ${PROP_ALIAS_URL}...")
-        file(DOWNLOAD ${PROP_ALIAS_URL} ${PROP_ALIAS_PATH} INACTIVITY_TIMEOUT 10)
-    endif()
-    if (NOT EXISTS ${PROP_VALUE_ALIAS_PATH})
-        message(STATUS "Downloading UCD PropertyValueAliases.txt from ${PROP_VALUE_ALIAS_URL}...")
-        file(DOWNLOAD ${PROP_VALUE_ALIAS_URL} ${PROP_VALUE_ALIAS_PATH} INACTIVITY_TIMEOUT 10)
-    endif()
-    if (NOT EXISTS ${SCRIPTS_PATH})
-        message(STATUS "Downloading UCD Scripts.txt from ${SCRIPTS_URL}...")
-        file(DOWNLOAD ${SCRIPTS_URL} ${SCRIPTS_PATH} INACTIVITY_TIMEOUT 10)
-    endif()
-    if (NOT EXISTS ${SCRIPT_EXTENSIONS_PATH})
-        message(STATUS "Downloading UCD ScriptExtensions.txt from ${SCRIPT_EXTENSIONS_URL}...")
-        file(DOWNLOAD ${SCRIPT_EXTENSIONS_URL} ${SCRIPT_EXTENSIONS_PATH} INACTIVITY_TIMEOUT 10)
-    endif()
-    if (NOT EXISTS ${EMOJI_DATA_PATH})
-        message(STATUS "Downloading UCD emoji-data.txt from ${EMOJI_DATA_URL}...")
-        file(DOWNLOAD ${EMOJI_DATA_URL} ${EMOJI_DATA_PATH} INACTIVITY_TIMEOUT 10)
-    endif()
-    if (NOT EXISTS ${NORM_PROPS_PATH})
-        message(STATUS "Downloading UCD DerivedNormalizationProps.txt from ${NORM_PROPS_URL}...")
-        file(DOWNLOAD ${NORM_PROPS_URL} ${NORM_PROPS_PATH} INACTIVITY_TIMEOUT 10)
+function(download_ucd_file url path)
+    if (NOT EXISTS "${path}")
+        get_filename_component(file "${path}" NAME)
+        message(STATUS "Downloading UCD ${file} from ${url}...")
+        file(DOWNLOAD "${url}" "${path}" INACTIVITY_TIMEOUT 10)
     endif()
+endfunction()
+
+if (ENABLE_UNICODE_DATABASE_DOWNLOAD)
+    download_ucd_file("${UNICODE_DATA_URL}" "${UNICODE_DATA_PATH}")
+    download_ucd_file("${SPECIAL_CASING_URL}" "${SPECIAL_CASING_PATH}")
+    download_ucd_file("${DERIVED_GENERAL_CATEGORY_URL}" "${DERIVED_GENERAL_CATEGORY_PATH}")
+    download_ucd_file("${PROP_LIST_URL}" "${PROP_LIST_PATH}")
+    download_ucd_file("${DERIVED_CORE_PROP_URL}" "${DERIVED_CORE_PROP_PATH}")
+    download_ucd_file("${DERIVED_BINARY_PROP_URL}" "${DERIVED_BINARY_PROP_PATH}")
+    download_ucd_file("${PROP_ALIAS_URL}" "${PROP_ALIAS_PATH}")
+    download_ucd_file("${PROP_VALUE_ALIAS_URL}" "${PROP_VALUE_ALIAS_PATH}")
+    download_ucd_file("${SCRIPTS_URL}" "${SCRIPTS_PATH}")
+    download_ucd_file("${SCRIPT_EXTENSIONS_URL}" "${SCRIPT_EXTENSIONS_PATH}")
+    download_ucd_file("${EMOJI_DATA_URL}" "${EMOJI_DATA_PATH}")
+    download_ucd_file("${NORM_PROPS_URL}" "${NORM_PROPS_PATH}")
 
     if (NOT EXISTS ${CLDR_ZIP_PATH})
         message(STATUS "Downloading CLDR database from ${CLDR_ZIP_URL}...")