Add optional url to de430.bsp download

conanfile.py

@@ -43,7 +43,8 @@
 }
 bskModuleOptionsString = {
     "autoKey": "",
-    "pathToExternalModules": ""
+    "pathToExternalModules": "",
+    "url_spice_kernel": ""
 }
 bskModuleOptionsFlag = {
     "clean": False,
@@ -251,6 +252,7 @@ def build(self):
             cmake.definitions["CONAN_LINK_RUNTIME_MULTI"] = cmake.definitions["CONAN_LINK_RUNTIME"]
             cmake.definitions["CONAN_LINK_RUNTIME"] = False
         cmake.definitions["BUILD_OPNAV"] = self.options.opNav
+        if self.options.url_spice_kernel: cmake.definitions["URL_SPICE_KERNEL"] = self.options.url_spice_kernel
         cmake.definitions["BUILD_VIZINTERFACE"] = self.options.vizInterface
         cmake.definitions["EXTERNAL_MODULES_PATH"] = self.options.pathToExternalModules
         cmake.definitions["PYTHON_VERSION"] = f"{sys.version_info.major}.{sys.version_info.minor}"

src/CMakeLists.txt

@@ -338,11 +338,16 @@ FetchContent_MakeAvailable(googletest)
 include(GoogleTest)
 enable_testing()
 
-# Check if the large Spice files are present.  If not, download from JPL site directly
+# Download spice file if not present
+set(URL_SPICE_KERNEL
+        "https://naif.jpl.nasa.gov/pub/naif/generic_kernels/spk/planets/de430.bsp"
+        CACHE
+        STRING
+        "URL from which to download spice kernel de430.bsp dependency")
 if(NOT EXISTS "${CMAKE_SOURCE_DIR}/../supportData/EphemerisData/de430.bsp")
-  message(STATUS "File de430.bsp not found, downloading file:")
+  message(STATUS "File de430.bsp not found, downloading file from ${URL_SPICE_KERNEL}:")
   file(DOWNLOAD
-          "https://naif.jpl.nasa.gov/pub/naif/generic_kernels/spk/planets/de430.bsp"
+          "${URL_SPICE_KERNEL}"
           # Download it to the build directory (in case the download gets interrupted).
           "${CMAKE_BINARY_DIR}/data/de430.bsp"
        SHOW_PROGRESS