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Merge pull request #2202 from nlohmann/issue2189

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Add option to not rely on Internet connectivity during test stage
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Niels Lohmann 2020-06-21 08:41:48 +02:00 committed by GitHub
commit 8dade80499
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4 changed files with 23 additions and 15 deletions
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4
README.md
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@ -1557,4 +1557,6 @@ $ cmake --build .
$ ctest --output-on-failure
```
For more information, have a look at the file [.travis.yml](https://github.com/nlohmann/json/blob/master/.travis.yml).
Note that during the `ctest` stage, several JSON test files are downloaded from an [external repository](https://github.com/nlohmann/json_test_data). If policies forbid downloading artifacts during testing, you can download the files yourself and pass the directory with the test files via `-DJSON_TestDataDirectory=path` to CMake. Then, no Internet connectivity is required. See [issue #2189](https://github.com/nlohmann/json/issues/2189) for more information.
In case you have downloaded the library rather than checked out the code via Git, test `cmake_fetch_content_configure`. Please execute `ctest -LE git_required` to skip these tests. See [issue #2189](https://github.com/nlohmann/json/issues/2189) for more information.

11
cmake/download_test_data.cmake
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@ -1,17 +1,22 @@
find_package(Git)
set(JSON_TEST_DATA_URL https://github.com/nlohmann/json_test_data)
set(JSON_TEST_DATA_VERSION 3.0.0)
# if variable is set, use test data from given directory rather than downloading them
if(JSON_TestDataDirectory)
message(STATUS "Using test data in ${JSON_TestDataDirectory}.")
add_custom_target(download_test_data)
file(WRITE ${CMAKE_BINARY_DIR}/include/test_data.hpp "#define TEST_DATA_DIRECTORY \"${JSON_TestDataDirectory}\"\n")
else()
find_package(Git)
# target to download test data
add_custom_target(download_test_data
COMMAND test -d json_test_data || ${GIT_EXECUTABLE} clone -c advice.detachedHead=false --branch v${JSON_TEST_DATA_VERSION} ${JSON_TEST_DATA_URL}.git --quiet --depth 1
COMMENT "Downloading test data from ${JSON_TEST_DATA_URL} (v${JSON_TEST_DATA_VERSION})"
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
)
# create a header with the path to the downloaded test data
file(WRITE ${CMAKE_BINARY_DIR}/include/test_data.hpp "#define TEST_DATA_DIRECTORY \"${CMAKE_BINARY_DIR}/json_test_data\"\n")
endif()
# determine the operating system (for debug and support purposes)
find_program(UNAME_COMMAND uname)

2
test/cmake_fetch_content/CMakeLists.txt
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@ -11,8 +11,10 @@ if (${CMAKE_VERSION} VERSION_GREATER "3.11.0")
)
set_tests_properties(cmake_fetch_content_configure PROPERTIES
FIXTURES_SETUP cmake_fetch_content
LABELS git_required
)
set_tests_properties(cmake_fetch_content_build PROPERTIES
FIXTURES_REQUIRED cmake_fetch_content
LABELS git_required
)
endif()

5
test/cmake_fetch_content/project/CMakeLists.txt
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@ -4,9 +4,8 @@ project(DummyImport CXX)
include(FetchContent)
FetchContent_Declare(json
GIT_REPOSITORY ${CMAKE_CURRENT_SOURCE_DIR}/../../..
GIT_TAG HEAD)
get_filename_component(GIT_REPOSITORY_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../../.. ABSOLUTE)
FetchContent_Declare(json GIT_REPOSITORY ${GIT_REPOSITORY_DIRECTORY} GIT_TAG HEAD)
FetchContent_GetProperties(json)
if(NOT json_POPULATED)