ExternalProject: Always run update step with non-empty UPDATE_COMMAND

The purpose of the `update` step is to run an update on each build
(subject to `UPDATE_DISCONNECTED`).  This is done for version-controlled
source directories.  We should do it for a custom `UPDATE_COMMAND` too.
In particular, when `UPDATE_DISCONNECTED` is used we expect the
`skip-update` step to exist.
This commit is contained in:
Brad King 2016-05-18 14:40:33 -04:00
parent 4f17baccad
commit bdca68388b
2 changed files with 15 additions and 0 deletions

View File

@ -2030,6 +2030,9 @@ function(_ep_add_update_command name)
if(cmd_set)
set(work_dir ${source_dir})
if(NOT "x${cmd}" STREQUAL "x")
set(always 1)
endif()
elseif(cvs_repository)
if(NOT CVS_EXECUTABLE)
message(FATAL_ERROR "error: could not find cvs for update of ${name}")

View File

@ -21,6 +21,18 @@ set_property(DIRECTORY PROPERTY EP_BASE ${base})
set_property(DIRECTORY PROPERTY EP_STEP_TARGETS configure build test)
set_property(DIRECTORY PROPERTY EP_INDEPENDENT_STEP_TARGETS update)
ExternalProject_Add(TestUpdateCommand
SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}
UPDATE_COMMAND ${CMAKE_COMMAND} -E echo update
UPDATE_DISCONNECTED 1
CONFIGURE_COMMAND ""
BUILD_COMMAND ""
INSTALL_COMMAND ""
INDEPENDENT_STEP_TARGETS update
)
add_custom_target(TestUpdateCommandDriver ALL)
add_dependencies(TestUpdateCommandDriver TestUpdateCommand-update)
set(do_git_tests 0)
if(GIT_EXECUTABLE)