FindSlint: Avoid re-downloading and re-extracting the archive

slint-ui · Sep 12, 2024 · 105ab0c · 105ab0c
1 parent fb1c34c
commit 105ab0c
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Showing 2 changed files with 30 additions and 18 deletions.
diff --git a/stm32h735g-dk/cmake/FindSlint.cmake b/stm32h735g-dk/cmake/FindSlint.cmake
@@ -68,20 +68,26 @@ if (SLINT_USE_NIGHTLY_VERSION)
     set(SLINT_GITHUB_RELEASE "nightly" CACHE STRING "")
 endif()
 
-set(prebuilt_archive_filename "Slint-cpp-${slint_version}-${SLINT_TARGET_ARCHITECTURE}.tar.gz")
+set(prebuilt_archive_name "Slint-cpp-${slint_version}-${SLINT_TARGET_ARCHITECTURE}")
+set(prebuilt_archive_filename "${prebuilt_archive_name}.tar.gz")
 set(download_target_path "${CMAKE_BINARY_DIR}/slint-prebuilt/")
 set(download_url "https://github.com/slint-ui/slint/releases/download/${github_release}/${prebuilt_archive_filename}")
 
 file(MAKE_DIRECTORY "${download_target_path}")
 message(STATUS "Downloading pre-built Slint binary ${download_url}")
-file(DOWNLOAD "${download_url}" "${download_target_path}/${prebuilt_archive_filename}" STATUS download_status)
-list(GET download_status 0 download_code)
-if (NOT download_code EQUAL 0)
-    list(GET download_status 1 download_message)
-    message(STATUS "Download of Slint binary package failed: ${download_message}")
-    return()
+if (NOT EXISTS "${download_target_path}/${prebuilt_archive_filename}")
+    file(DOWNLOAD "${download_url}" "${download_target_path}/${prebuilt_archive_filename}" STATUS download_status)
+    list(GET download_status 0 download_code)
+    if (NOT download_code EQUAL 0)
+        list(GET download_status 1 download_message)
+        message(STATUS "Download of Slint binary package failed: ${download_message}")
+        return()
+    endif()
+endif()
+
+if (NOT EXISTS "${download_target_path}/${prebuilt_archive_name}")
+    file(ARCHIVE_EXTRACT INPUT "${download_target_path}/${prebuilt_archive_filename}" DESTINATION "${download_target_path}")
 endif()
 
-file(ARCHIVE_EXTRACT INPUT "${download_target_path}/${prebuilt_archive_filename}" DESTINATION "${download_target_path}")
-list(PREPEND CMAKE_PREFIX_PATH "${download_target_path}")
+list(PREPEND CMAKE_PREFIX_PATH "${download_target_path}/${prebuilt_archive_name}")
 find_package(Slint CONFIG)
diff --git a/stm32h747i-disco/cmake/FindSlint.cmake b/stm32h747i-disco/cmake/FindSlint.cmake
@@ -68,20 +68,26 @@ if (SLINT_USE_NIGHTLY_VERSION)
     set(SLINT_GITHUB_RELEASE "nightly" CACHE STRING "")
 endif()
 
-set(prebuilt_archive_filename "Slint-cpp-${slint_version}-${SLINT_TARGET_ARCHITECTURE}.tar.gz")
+set(prebuilt_archive_name "Slint-cpp-${slint_version}-${SLINT_TARGET_ARCHITECTURE}")
+set(prebuilt_archive_filename "${prebuilt_archive_name}.tar.gz")
 set(download_target_path "${CMAKE_BINARY_DIR}/slint-prebuilt/")
 set(download_url "https://github.com/slint-ui/slint/releases/download/${github_release}/${prebuilt_archive_filename}")
 
 file(MAKE_DIRECTORY "${download_target_path}")
 message(STATUS "Downloading pre-built Slint binary ${download_url}")
-file(DOWNLOAD "${download_url}" "${download_target_path}/${prebuilt_archive_filename}" STATUS download_status)
-list(GET download_status 0 download_code)
-if (NOT download_code EQUAL 0)
-    list(GET download_status 1 download_message)
-    message(STATUS "Download of Slint binary package failed: ${download_message}")
-    return()
+if (NOT EXISTS "${download_target_path}/${prebuilt_archive_filename}")
+    file(DOWNLOAD "${download_url}" "${download_target_path}/${prebuilt_archive_filename}" STATUS download_status)
+    list(GET download_status 0 download_code)
+    if (NOT download_code EQUAL 0)
+        list(GET download_status 1 download_message)
+        message(STATUS "Download of Slint binary package failed: ${download_message}")
+        return()
+    endif()
+endif()
+
+if (NOT EXISTS "${download_target_path}/${prebuilt_archive_name}")
+    file(ARCHIVE_EXTRACT INPUT "${download_target_path}/${prebuilt_archive_filename}" DESTINATION "${download_target_path}")
 endif()
 
-file(ARCHIVE_EXTRACT INPUT "${download_target_path}/${prebuilt_archive_filename}" DESTINATION "${download_target_path}")
-list(PREPEND CMAKE_PREFIX_PATH "${download_target_path}")
+list(PREPEND CMAKE_PREFIX_PATH "${download_target_path}/${prebuilt_archive_name}")
 find_package(Slint CONFIG)