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Add: examples: cpp: CMake Standalone auto fetch latest available tag [todo] #68

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Add: examples: cpp: CMake Standalone auto fetch latest available tag [todo] #68

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12 changes: 11 additions & 1 deletion examples/cpp/CMakeLists_Standalone.txt
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Expand Up @@ -2,9 +2,19 @@ cmake_minimum_required(VERSION 3.10)
project(example)

include(ExternalProject)
include(FetchContent)

# Function to fetch latest release version from GitHub
function(fetch_latest_release owner_name repo_name out_variable)
file(DOWNLOAD "https://api.github.com/repos/${owner_name}/${repo_name}/releases/latest" "${CMAKE_BINARY_DIR}/latest_release.json" TLS_VERIFY ON)
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Use CMAKE_BUILD_DIR over CMAKE_BINARY_DIR, otherwise the artifact folder will also contain the json file as well. it's a temporary file, it should exist in a temporary folder.

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can't use CMAKE_BUILD_DIR,
tried CMAKE_CACHEFILE_DIR, but to make it works you need to run twice (something related to permissions)

was unable to find CMAKE_BUILD_DIR
https://cmake.org/cmake/help/latest/search.html?q=CMAKE_BUILD_

file(READ "${CMAKE_BINARY_DIR}/latest_release.json" latest_release_json)
string(REGEX MATCH "\"tag_name\": \"([^\"]+)\"" _ ${latest_release_json})
set(${out_variable} "${CMAKE_MATCH_1}" PARENT_SCOPE)
endfunction()

if(NOT DEFINED NAVIGATOR_VERSION)
set(NAVIGATOR_VERSION "0.0.1")
fetch_latest_release("bluerobotics" "navigator-lib" NAVIGATOR_VERSION)
message(STATUS "Latest Navigator lib version: ${NAVIGATOR_VERSION}")
endif()

set(ZIP_URL "https://github.com/bluerobotics/navigator-lib/releases/download/${NAVIGATOR_VERSION}/cpp.zip")
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