Merge topic 'ep-refactor-scripts'

5fbac2bb24 ExternalProject: Move inline scripts to separate files
8feaa41ee9 ExternalProject: Ensure _ep_set_directories records cmake paths
036517fe0b ExternalProject: Move existing step scripts to separate subdirectory

Acked-by: Kitware Robot <kwrobot@kitware.com>
Tested-by: buildbot <buildbot@kitware.com>
Merge-request: !6888

1 files changed, 73 insertions, 0 deletions

diff --git a/Modules/ExternalProject/gitclone.cmake.in b/Modules/ExternalProject/gitclone.cmake.in
new file mode 100644
index 0000000..3312171
--- /dev/null
+++ b/Modules/ExternalProject/gitclone.cmake.in
@@ -0,0 +1,73 @@
+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+cmake_minimum_required(VERSION 3.5)
+
+if(EXISTS "@gitclone_stampfile@" AND EXISTS "@gitclone_infofile@" AND
+  "@gitclone_stampfile@" IS_NEWER_THAN "@gitclone_infofile@")
+  message(STATUS
+    "Avoiding repeated git clone, stamp file is up to date: "
+    "'@gitclone_stampfile@'"
+  )
+  return()
+endif()
+
+execute_process(
+  COMMAND ${CMAKE_COMMAND} -E rm -rf "@source_dir@"
+  RESULT_VARIABLE error_code
+)
+if(error_code)
+  message(FATAL_ERROR "Failed to remove directory: '@source_dir@'")
+endif()
+
+# try the clone 3 times in case there is an odd git clone issue
+set(error_code 1)
+set(number_of_tries 0)
+while(error_code AND number_of_tries LESS 3)
+  execute_process(
+    COMMAND "@git_EXECUTABLE@" @git_options@
+            clone @git_clone_options@ "@git_repository@" "@src_name@"
+    WORKING_DIRECTORY "@work_dir@"
+    RESULT_VARIABLE error_code
+  )
+  math(EXPR number_of_tries "${number_of_tries} + 1")
+endwhile()
+if(number_of_tries GREATER 1)
+  message(STATUS "Had to git clone more than once: ${number_of_tries} times.")
+endif()
+if(error_code)
+  message(FATAL_ERROR "Failed to clone repository: '@git_repository@'")
+endif()
+
+execute_process(
+  COMMAND "@git_EXECUTABLE@" @git_options@
+          checkout "@git_tag@" @git_checkout_explicit--@
+  WORKING_DIRECTORY "@work_dir@/@src_name@"
+  RESULT_VARIABLE error_code
+)
+if(error_code)
+  message(FATAL_ERROR "Failed to checkout tag: '@git_tag@'")
+endif()
+
+set(init_submodules @init_submodules@)
+if(init_submodules)
+  execute_process(
+    COMMAND "@git_EXECUTABLE@" @git_options@
+            submodule update @git_submodules_recurse@ --init @git_submodules@
+    WORKING_DIRECTORY "@work_dir@/@src_name@"
+    RESULT_VARIABLE error_code
+  )
+endif()
+if(error_code)
+  message(FATAL_ERROR "Failed to update submodules in: '@work_dir@/@src_name@'")
+endif()
+
+# Complete success, update the script-last-run stamp file:
+#
+execute_process(
+  COMMAND ${CMAKE_COMMAND} -E copy "@gitclone_infofile@" "@gitclone_stampfile@"
+  RESULT_VARIABLE error_code
+)
+if(error_code)
+  message(FATAL_ERROR "Failed to copy script-last-run stamp file: '@gitclone_stampfile@'")
+endif()