diff options
Diffstat (limited to 'Modules/ExternalProject.cmake')
| -rw-r--r-- | Modules/ExternalProject.cmake | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/Modules/ExternalProject.cmake b/Modules/ExternalProject.cmake index 1f3dc38..9cc8a20 100644 --- a/Modules/ExternalProject.cmake +++ b/Modules/ExternalProject.cmake @@ -61,6 +61,10 @@ Create custom targets to build projects in external trees The optional name of the remote, default to ``origin`` ``GIT_SUBMODULES <module>...`` Git submodules that shall be updated, all if empty + ``GIT_SHALLOW 1`` + Tell Git to clone with ``--depth 1``. Use when ``GIT_TAG`` is not + specified or when it names a branch in order to download only the + tip of the branch without the rest of its history. ``HG_REPOSITORY <url>`` URL of mercurial repo ``HG_TAG <tag>`` @@ -499,7 +503,12 @@ define_property(DIRECTORY PROPERTY "EP_UPDATE_DISCONNECTED" INHERITED "ExternalProject module." ) -function(_ep_write_gitclone_script script_filename source_dir git_EXECUTABLE git_repository git_tag git_remote_name git_submodules src_name work_dir gitclone_infofile gitclone_stampfile tls_verify) +function(_ep_write_gitclone_script script_filename source_dir git_EXECUTABLE git_repository git_tag git_remote_name git_submodules git_shallow src_name work_dir gitclone_infofile gitclone_stampfile tls_verify) + if(NOT GIT_VERSION_STRING VERSION_LESS 1.7.10) + set(git_clone_shallow_options "--depth 1 --no-single-branch") + else() + set(git_clone_shallow_options "--depth 1") + endif() file(WRITE ${script_filename} "if(\"${git_tag}\" STREQUAL \"\") message(FATAL_ERROR \"Tag for git checkout should not be empty.\") @@ -533,12 +542,19 @@ if(NOT \"x${tls_verify}\" STREQUAL \"x\" AND NOT tls_verify) -c http.sslVerify=false) endif() +set(git_clone_options) + +set(git_shallow \"${git_shallow}\") +if(git_shallow) + list(APPEND git_clone_options ${git_clone_shallow_options}) +endif() + # try the clone 3 times incase there is an odd git clone issue set(error_code 1) set(number_of_tries 0) while(error_code AND number_of_tries LESS 3) execute_process( - COMMAND \"${git_EXECUTABLE}\" \${git_options} clone --origin \"${git_remote_name}\" \"${git_repository}\" \"${src_name}\" + COMMAND \"${git_EXECUTABLE}\" \${git_options} clone \${git_clone_options} --origin \"${git_remote_name}\" \"${git_repository}\" \"${src_name}\" WORKING_DIRECTORY \"${work_dir}\" RESULT_VARIABLE error_code ) @@ -1793,6 +1809,7 @@ function(_ep_add_download_command name) if("x${tls_verify}" STREQUAL "x" AND DEFINED CMAKE_TLS_VERIFY) set(tls_verify "${CMAKE_TLS_VERIFY}") endif() + get_property(git_shallow TARGET ${name} PROPERTY _EP_GIT_SHALLOW) # For the download step, and the git clone operation, only the repository # should be recorded in a configured RepositoryInfo file. If the repo @@ -1817,7 +1834,7 @@ function(_ep_add_download_command name) # The script will delete the source directory and then call git clone. # _ep_write_gitclone_script(${tmp_dir}/${name}-gitclone.cmake ${source_dir} - ${GIT_EXECUTABLE} ${git_repository} ${git_tag} ${git_remote_name} "${git_submodules}" ${src_name} ${work_dir} + ${GIT_EXECUTABLE} ${git_repository} ${git_tag} ${git_remote_name} "${git_submodules}" "${git_shallow}" ${src_name} ${work_dir} ${stamp_dir}/${name}-gitinfo.txt ${stamp_dir}/${name}-gitclone-lastrun.txt "${tls_verify}" ) set(comment "Performing download step (git clone) for '${name}'") |