diff options
Diffstat (limited to 'Modules/ExternalData.cmake')
| -rw-r--r-- | Modules/ExternalData.cmake | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/Modules/ExternalData.cmake b/Modules/ExternalData.cmake index 1e1d32f..1e2698c 100644 --- a/Modules/ExternalData.cmake +++ b/Modules/ExternalData.cmake @@ -58,7 +58,7 @@ # # It creates custom commands in the target as necessary to make data # files available for each ``DATA{}`` reference previously evaluated by -# other functions provided by this module. A list of URL templates must +# other functions provided by this module. A list of URL templates may # be provided in the variable ``ExternalData_URL_TEMPLATES`` using the # placeholders ``%(algo)`` and ``%(hash)`` in each template. Data fetch # rules try each URL template in order by substituting the hash @@ -202,8 +202,9 @@ function(ExternalData_add_test target) endfunction() function(ExternalData_add_target target) - if(NOT ExternalData_URL_TEMPLATES) - message(FATAL_ERROR "ExternalData_URL_TEMPLATES is not set!") + if(NOT ExternalData_URL_TEMPLATES AND NOT ExternalData_OBJECT_STORES) + message(FATAL_ERROR + "Neither ExternalData_URL_TEMPLATES nor ExternalData_OBJECT_STORES is set!") endif() if(NOT ExternalData_OBJECT_STORES) set(ExternalData_OBJECT_STORES ${CMAKE_BINARY_DIR}/ExternalData/Objects) @@ -625,8 +626,9 @@ endif() if(ExternalData_CONFIG) include(${ExternalData_CONFIG}) endif() -if(NOT ExternalData_URL_TEMPLATES) - message(FATAL_ERROR "No ExternalData_URL_TEMPLATES set!") +if(NOT ExternalData_URL_TEMPLATES AND NOT ExternalData_OBJECT_STORES) + message(FATAL_ERROR + "Neither ExternalData_URL_TEMPLATES nor ExternalData_OBJECT_STORES is set!") endif() function(_ExternalData_link_or_copy src dst) @@ -754,6 +756,9 @@ function(_ExternalData_download_object name hash algo var_obj) set(obj "${staged}") message(STATUS "Staged object: \"${obj}\"") else() + if(NOT tried) + set(tried "\n (No ExternalData_URL_TEMPLATES given)") + endif() message(FATAL_ERROR "Object ${algo}=${hash} not found at:${tried}") endif() |